aclocal.m4

   1 # aclocal.m4 generated automatically by aclocal 1.6.3 -*- Autoconf -*-
   2
   3 # Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
   4 # Free Software Foundation, Inc.
   5 # This file is free software; the Free Software Foundation
   6 # gives unlimited permission to copy and/or distribute it,
   7 # with or without modifications, as long as this notice is preserved.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  12 # PARTICULAR PURPOSE.
  13
  14 dnl ---------------------------------------------------------------------------
  15 dnl
  16 dnl Macros for configure.in for wxWindows by Robert Roebling, Phil Blecker,
  17 dnl Vadim Zeitlin and Ron Lee
  18 dnl
  19 dnl This script is under the wxWindows licence.
  20 dnl
  21 dnl Version: $Id$
  22 dnl ---------------------------------------------------------------------------
  23
  24 dnl ===========================================================================
  25 dnl macros to find the a file in the list of include/lib paths
  26 dnl ===========================================================================
  27
  28 dnl ---------------------------------------------------------------------------
  29 dnl call WX_PATH_FIND_INCLUDES(search path, header name), sets ac_find_includes
  30 dnl to the full name of the file that was found or leaves it empty if not found
  31 dnl ---------------------------------------------------------------------------
  32 AC_DEFUN([WX_PATH_FIND_INCLUDES],
  33 [
  34 ac_find_includes=
  35 for ac_dir in $1 /usr/include;
  36   do
  37     if test -f "$ac_dir/$2"; then
  38       ac_find_includes=$ac_dir
  39       break
  40     fi
  41   done
  42 ])
  43
  44 dnl ---------------------------------------------------------------------------
  45 dnl call WX_PATH_FIND_LIBRARIES(search path, header name), sets ac_find_libraries
  46 dnl to the full name of the file that was found or leaves it empty if not found
  47 dnl ---------------------------------------------------------------------------
  48 AC_DEFUN([WX_PATH_FIND_LIBRARIES],
  49 [
  50 ac_find_libraries=
  51 for ac_dir in $1 /usr/lib;
  52   do
  53     for ac_extension in a so sl dylib; do
  54       if test -f "$ac_dir/lib$2.$ac_extension"; then
  55         ac_find_libraries=$ac_dir
  56         break 2
  57       fi
  58     done
  59   done
  60 ])
  61
  62 dnl ---------------------------------------------------------------------------
  63 dnl Path to include, already defined
  64 dnl ---------------------------------------------------------------------------
  65 AC_DEFUN([WX_INCLUDE_PATH_EXIST],
  66 [
  67   dnl never add -I/usr/include to the CPPFLAGS
  68   if test "x$1" = "x/usr/include"; then
  69     ac_path_to_include=""
  70   else
  71     echo "$2" | grep "\-I$1" > /dev/null
  72     result=$?
  73     if test $result = 0; then
  74       ac_path_to_include=""
  75     else
  76       ac_path_to_include=" -I$1"
  77     fi
  78   fi
  79 ])
  80
  81 dnl ---------------------------------------------------------------------------
  82 dnl Path to link, already defined
  83 dnl ---------------------------------------------------------------------------
  84 AC_DEFUN([WX_LINK_PATH_EXIST],
  85 [
  86   echo "$2" | grep "\-L$1" > /dev/null
  87   result=$?
  88   if test $result = 0; then
  89     ac_path_to_link=""
  90   else
  91     ac_path_to_link=" -L$1"
  92   fi
  93 ])
  94
  95 dnl ===========================================================================
  96 dnl C++ features test
  97 dnl ===========================================================================
  98
  99 dnl ---------------------------------------------------------------------------
 100 dnl WX_CPP_NEW_HEADERS checks whether the compiler has "new" <iostream> header
 101 dnl or only the old <iostream.h> one - it may be generally assumed that if
 102 dnl <iostream> exists, the other "new" headers (without .h) exist too.
 103 dnl
 104 dnl call WX_CPP_NEW_HEADERS(actiof-if-true, action-if-false-or-cross-compiling)
 105 dnl ---------------------------------------------------------------------------
 106
 107 AC_DEFUN([WX_CPP_NEW_HEADERS],
 108 [
 109   if test "$cross_compiling" = "yes"; then
 110     ifelse([$2], , :, [$2])
 111   else
 112     AC_LANG_SAVE
 113     AC_LANG_CPLUSPLUS
 114
 115     AC_CHECK_HEADERS(iostream)
 116
 117     if test "$ac_cv_header_iostream" = "yes" ; then
 118       ifelse([$1], , :, [$1])
 119     else
 120       ifelse([$2], , :, [$2])
 121     fi
 122
 123     AC_LANG_RESTORE
 124   fi
 125 ])
 126
 127 dnl ---------------------------------------------------------------------------
 128 dnl WX_CPP_BOOL checks whether the C++ compiler has a built in bool type
 129 dnl
 130 dnl call WX_CPP_BOOL - will define HAVE_BOOL if the compiler supports bool
 131 dnl ---------------------------------------------------------------------------
 132
 133 AC_DEFUN([WX_CPP_BOOL],
 134 [
 135   AC_CACHE_CHECK([if C++ compiler supports bool], wx_cv_cpp_bool,
 136   [
 137     AC_LANG_SAVE
 138     AC_LANG_CPLUSPLUS
 139
 140     AC_TRY_COMPILE(
 141       [
 142       ],
 143       [
 144         bool b = true;
 145
 146         return 0;
 147       ],
 148       [
 149         wx_cv_cpp_bool=yes
 150       ],
 151       [
 152         wx_cv_cpp_bool=no
 153       ]
 154     )
 155
 156     AC_LANG_RESTORE
 157   ])
 158
 159   if test "$wx_cv_cpp_bool" = "yes"; then
 160     AC_DEFINE(HAVE_BOOL)
 161   fi
 162 ])
 163
 164 dnl ---------------------------------------------------------------------------
 165 dnl WX_CPP_EXPLICIT checks whether the C++ compiler support the explicit
 166 dnl keyword and defines HAVE_EXPLICIT if this is the case
 167 dnl ---------------------------------------------------------------------------
 168
 169 AC_DEFUN([WX_CPP_EXPLICIT],
 170 [
 171   AC_CACHE_CHECK([if C++ compiler supports the explicit keyword],
 172                  wx_cv_explicit,
 173   [
 174     AC_LANG_SAVE
 175     AC_LANG_CPLUSPLUS
 176
 177     dnl do the test in 2 steps: first check that the compiler knows about the
 178     dnl explicit keyword at all and then verify that it really honours it
 179     AC_TRY_COMPILE(
 180       [
 181         class Foo { public: explicit Foo(int) {} };
 182       ],
 183       [
 184         return 0;
 185       ],
 186       [
 187         AC_TRY_COMPILE(
 188             [
 189                 class Foo { public: explicit Foo(int) {} };
 190                 static void TakeFoo(const Foo& foo) { }
 191             ],
 192             [
 193                 TakeFoo(17);
 194                 return 0;
 195             ],
 196             wx_cv_explicit=no,
 197             wx_cv_explicit=yes
 198         )
 199       ],
 200       wx_cv_explicit=no
 201     )
 202
 203     AC_LANG_RESTORE
 204   ])
 205
 206   if test "$wx_cv_explicit" = "yes"; then
 207     AC_DEFINE(HAVE_EXPLICIT)
 208   fi
 209 ])
 210
 211 dnl ---------------------------------------------------------------------------
 212 dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
 213 dnl ---------------------------------------------------------------------------
 214
 215 AC_DEFUN([WX_C_BIGENDIAN],
 216 [AC_CACHE_CHECK([whether byte ordering is bigendian], ac_cv_c_bigendian,
 217 [ac_cv_c_bigendian=unknown
 218 # See if sys/param.h defines the BYTE_ORDER macro.
 219 AC_TRY_COMPILE([#include <sys/types.h>
 220 #include <sys/param.h>], [
 221 #if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
 222  bogus endian macros
 223 #endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
 224 AC_TRY_COMPILE([#include <sys/types.h>
 225 #include <sys/param.h>], [
 226 #if BYTE_ORDER != BIG_ENDIAN
 227  not big endian
 228 #endif], ac_cv_c_bigendian=yes, ac_cv_c_bigendian=no)])
 229 if test $ac_cv_c_bigendian = unknown; then
 230 AC_TRY_RUN([main () {
 231   /* Are we little or big endian?  From Harbison&Steele.  */
 232   union
 233   {
 234     long l;
 235     char c[sizeof (long)];
 236   } u;
 237   u.l = 1;
 238   exit (u.c[sizeof (long) - 1] == 1);
 239 }], [ac_cv_c_bigendian=no], [ac_cv_c_bigendian=yes], [ac_cv_c_bigendian=unknown])
 240 fi])
 241 if test $ac_cv_c_bigendian = unknown; then
 242   AC_MSG_WARN([Assuming little-endian target machine - this may be overriden by adding the line "ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'}" to config.cache file])
 243 fi
 244 if test $ac_cv_c_bigendian = yes; then
 245   AC_DEFINE(WORDS_BIGENDIAN)
 246 fi
 247 ])
 248
 249 dnl ---------------------------------------------------------------------------
 250 dnl override AC_ARG_ENABLE/WITH to cache the results in .cache file
 251 dnl ---------------------------------------------------------------------------
 252
 253 AC_DEFUN([WX_ARG_CACHE_INIT],
 254         [
 255           wx_arg_cache_file="configarg.cache"
 256           echo "loading argument cache $wx_arg_cache_file"
 257           rm -f ${wx_arg_cache_file}.tmp
 258           touch ${wx_arg_cache_file}.tmp
 259           touch ${wx_arg_cache_file}
 260         ])
 261
 262 AC_DEFUN([WX_ARG_CACHE_FLUSH],
 263         [
 264           echo "saving argument cache $wx_arg_cache_file"
 265           mv ${wx_arg_cache_file}.tmp ${wx_arg_cache_file}
 266         ])
 267
 268 dnl this macro checks for a three-valued command line --with argument:
 269 dnl   possible arguments are 'yes', 'no', 'sys', or 'builtin'
 270 dnl usage: WX_ARG_SYS_WITH(option, helpmessage, variable-name)
 271 AC_DEFUN([WX_ARG_SYS_WITH],
 272         [
 273           AC_MSG_CHECKING([for --with-$1])
 274           no_cache=0
 275           AC_ARG_WITH($1, [$2],
 276                       [
 277                         if test "$withval" = yes; then
 278                           ac_cv_use_$1='$3=yes'
 279                         elif test "$withval" = no; then
 280                           ac_cv_use_$1='$3=no'
 281                         elif test "$withval" = sys; then
 282                           ac_cv_use_$1='$3=sys'
 283                         elif test "$withval" = builtin; then
 284                           ac_cv_use_$1='$3=builtin'
 285                         else
 286                           AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
 287                         fi
 288                       ],
 289                       [
 290                         LINE=`grep "$3" ${wx_arg_cache_file}`
 291                         if test "x$LINE" != x ; then
 292                           eval "DEFAULT_$LINE"
 293                         else
 294                           no_cache=1
 295                         fi
 296
 297                         ac_cv_use_$1='$3='$DEFAULT_$3
 298                       ])
 299
 300           eval "$ac_cv_use_$1"
 301           if test "$no_cache" != 1; then
 302             echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
 303           fi
 304
 305           if test "$$3" = yes; then
 306             AC_MSG_RESULT(yes)
 307           elif test "$$3" = no; then
 308             AC_MSG_RESULT(no)
 309           elif test "$$3" = sys; then
 310             AC_MSG_RESULT([system version])
 311           elif test "$$3" = builtin; then
 312             AC_MSG_RESULT([builtin version])
 313           else
 314             AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
 315           fi
 316         ])
 317
 318 dnl this macro checks for a command line argument and caches the result
 319 dnl usage: WX_ARG_WITH(option, helpmessage, variable-name)
 320 AC_DEFUN([WX_ARG_WITH],
 321         [
 322           AC_MSG_CHECKING([for --with-$1])
 323           no_cache=0
 324           AC_ARG_WITH($1, [$2],
 325                       [
 326                         if test "$withval" = yes; then
 327                           ac_cv_use_$1='$3=yes'
 328                         else
 329                           ac_cv_use_$1='$3=no'
 330                         fi
 331                       ],
 332                       [
 333                         LINE=`grep "$3" ${wx_arg_cache_file}`
 334                         if test "x$LINE" != x ; then
 335                           eval "DEFAULT_$LINE"
 336                         else
 337                           no_cache=1
 338                         fi
 339
 340                         ac_cv_use_$1='$3='$DEFAULT_$3
 341                       ])
 342
 343           eval "$ac_cv_use_$1"
 344           if test "$no_cache" != 1; then
 345             echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
 346           fi
 347
 348           if test "$$3" = yes; then
 349             AC_MSG_RESULT(yes)
 350           else
 351             AC_MSG_RESULT(no)
 352           fi
 353         ])
 354
 355 dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH
 356 dnl usage: WX_ARG_ENABLE(option, helpmessage, variable-name, enablestring)
 357 dnl
 358 dnl enablestring is a hack and allows to show "checking for --disable-foo"
 359 dnl message when running configure instead of the default "checking for
 360 dnl --enable-foo" one whih is useful for the options enabled by default
 361 AC_DEFUN([WX_ARG_ENABLE],
 362         [
 363           enablestring=$4
 364           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
 365           no_cache=0
 366           AC_ARG_ENABLE($1, [$2],
 367                         [
 368                           if test "$enableval" = yes; then
 369                             ac_cv_use_$1='$3=yes'
 370                           else
 371                             ac_cv_use_$1='$3=no'
 372                           fi
 373                         ],
 374                         [
 375                           LINE=`grep "$3" ${wx_arg_cache_file}`
 376                           if test "x$LINE" != x ; then
 377                             eval "DEFAULT_$LINE"
 378                           else
 379                             no_cache=1
 380                           fi
 381
 382                           ac_cv_use_$1='$3='$DEFAULT_$3
 383                         ])
 384
 385           eval "$ac_cv_use_$1"
 386           if test "$no_cache" != 1; then
 387             echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
 388           fi
 389
 390           if test "$$3" = yes; then
 391             AC_MSG_RESULT(yes)
 392           else
 393             AC_MSG_RESULT(no)
 394           fi
 395         ])
 396
 397
 398 dnl ===========================================================================
 399 dnl Linker features test
 400 dnl ===========================================================================
 401
 402 dnl ---------------------------------------------------------------------------
 403 dnl WX_VERSIONED_SYMBOLS checks whether the linker can create versioned
 404 dnl symbols. If it can, sets LDFLAGS_VERSIONING to $CXX flags needed to use
 405 dnl version script file named versionfile
 406 dnl
 407 dnl call WX_VERSIONED_SYMBOLS(versionfile)
 408 dnl ---------------------------------------------------------------------------
 409 AC_DEFUN([WX_VERSIONED_SYMBOLS],
 410 [
 411   found_versioning=no
 412
 413   dnl FIXME - doesn't work, Solaris linker doesn't accept wildcards
 414   dnl         in the script.
 415   dnl dnl Check for known non-gcc cases:
 416   dnl case "${host}" in
 417   dnl   *-*-solaris2* )
 418   dnl     if test "x$GCC" != "xyes" ; then
 419   dnl         LDFLAGS_VERSIONING="-M $1"
 420   dnl         found_versioning=yes
 421   dnl     fi
 422   dnl   ;;
 423   dnl esac
 424
 425   dnl Generic check for GCC or GCC-like behaviour (Intel C++, GCC):
 426   if test $found_versioning = no ; then
 427       AC_CACHE_CHECK([if the linker accepts --version-script], wx_cv_version_script,
 428       [
 429         echo "VER_1 { *; };" >conftest.sym
 430         echo "int main() { return 0; }" >conftest.cpp
 431
 432         if AC_TRY_COMMAND([
 433                 $CXX -o conftest.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
 434                 -Wl,--version-script,conftest.sym >/dev/null 2>conftest.stderr]) ; then
 435           if test -s conftest.stderr ; then
 436               wx_cv_version_script=no
 437           else
 438               wx_cv_version_script=yes
 439           fi
 440         else
 441           wx_cv_version_script=no
 442         fi
 443         rm -f conftest.output conftest.stderr conftest.sym conftest.cpp
 444       ])
 445       if test $wx_cv_version_script = yes ; then
 446         LDFLAGS_VERSIONING="-Wl,--version-script,$1"
 447       fi
 448   fi
 449 ])
 450
 451
 452 dnl ===========================================================================
 453 dnl "3rd party" macros included here because they are not widely available
 454 dnl ===========================================================================
 455
 456 dnl ---------------------------------------------------------------------------
 457 dnl test for availability of iconv()
 458 dnl ---------------------------------------------------------------------------
 459
 460 dnl From Bruno Haible.
 461
 462 AC_DEFUN([AM_ICONV],
 463 [
 464   dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
 465   dnl those with the standalone portable GNU libiconv installed).
 466
 467   AC_ARG_WITH([libiconv-prefix],
 468 [  --with-libiconv-prefix=DIR  search for libiconv in DIR/include and DIR/lib], [
 469     for dir in `echo "$withval" | tr : ' '`; do
 470       if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
 471       if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
 472     done
 473    ])
 474
 475   AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
 476     am_cv_func_iconv="no, consider installing GNU libiconv"
 477     am_cv_lib_iconv=no
 478     AC_TRY_LINK([#include <stdlib.h>
 479 #include <iconv.h>],
 480       [iconv_t cd = iconv_open("","");
 481        iconv(cd,NULL,NULL,NULL,NULL);
 482        iconv_close(cd);],
 483       am_cv_func_iconv=yes)
 484     if test "$am_cv_func_iconv" != yes; then
 485       am_save_LIBS="$LIBS"
 486       LIBS="$LIBS -liconv"
 487       AC_TRY_LINK([#include <stdlib.h>
 488 #include <iconv.h>],
 489         [iconv_t cd = iconv_open("","");
 490          iconv(cd,NULL,NULL,NULL,NULL);
 491          iconv_close(cd);],
 492         am_cv_lib_iconv=yes
 493         am_cv_func_iconv=yes)
 494       LIBS="$am_save_LIBS"
 495     fi
 496   ])
 497   if test "$am_cv_func_iconv" = yes; then
 498     AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
 499     AC_CACHE_CHECK([if iconv needs const], wx_cv_func_iconv_const,
 500       AC_TRY_COMPILE([
 501 #include <stdlib.h>
 502 #include <iconv.h>
 503 extern
 504 #ifdef __cplusplus
 505 "C"
 506 #endif
 507 #if defined(__STDC__) || defined(__cplusplus)
 508 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 509 #else
 510 size_t iconv();
 511 #endif
 512         ],
 513         [],
 514         wx_cv_func_iconv_const="no",
 515         wx_cv_func_iconv_const="yes"
 516       )
 517     )
 518
 519     iconv_const=
 520     if test "x$wx_cv_func_iconv_const" = "xyes"; then
 521         iconv_const="const"
 522     fi
 523
 524     AC_DEFINE_UNQUOTED(ICONV_CONST, $iconv_const,
 525       [Define as const if the declaration of iconv() needs const.])
 526   fi
 527   LIBICONV=
 528   if test "$am_cv_lib_iconv" = yes; then
 529     LIBICONV="-liconv"
 530   fi
 531   AC_SUBST(LIBICONV)
 532 ])
 533
 534 dnl ---------------------------------------------------------------------------
 535 dnl AC_SYS_LARGEFILE (partly based on the code from autoconf 2.5x)
 536 dnl ---------------------------------------------------------------------------
 537
 538 dnl WX_SYS_LARGEFILE_TEST
 539 dnl
 540 dnl NB: original autoconf test was checking if compiler supported 6 bit off_t
 541 dnl     arithmetic properly but this failed miserably with gcc under Linux
 542 dnl     whereas the system still supports 64 bit files, so now simply check
 543 dnl     that off_t is big enough
 544 define(WX_SYS_LARGEFILE_TEST,
 545 [typedef struct {
 546     unsigned int field: sizeof(off_t) == 8;
 547 } wxlf;
 548 ])
 549
 550
 551 dnl WX_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR)
 552 define(WX_SYS_LARGEFILE_MACRO_VALUE,
 553 [
 554     AC_CACHE_CHECK([for $1 value needed for large files], [$3],
 555         [
 556           AC_TRY_COMPILE([#define $1 $2
 557                           #include <sys/types.h>],
 558                          WX_SYS_LARGEFILE_TEST,
 559                          [$3=$2],
 560                          [$3=no])
 561         ]
 562     )
 563
 564     if test "$$3" != no; then
 565         wx_largefile=yes
 566         AC_DEFINE_UNQUOTED([$1], [$$3])
 567     fi
 568 ])
 569
 570
 571 dnl AC_SYS_LARGEFILE
 572 dnl ----------------
 573 dnl By default, many hosts won't let programs access large files;
 574 dnl one must use special compiler options to get large-file access to work.
 575 dnl For more details about this brain damage please see:
 576 dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
 577 AC_DEFUN([AC_SYS_LARGEFILE],
 578 [AC_ARG_ENABLE(largefile,
 579                [  --disable-largefile     omit support for large files])
 580 if test "$enable_largefile" != no; then
 581     dnl _FILE_OFFSET_BITS==64 is needed for Linux, Solaris, ...
 582     dnl _LARGE_FILES -- for AIX
 583     wx_largefile=no
 584     WX_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64, ac_cv_sys_file_offset_bits)
 585     if test "x$wx_largefile" != "xyes"; then
 586         WX_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1, ac_cv_sys_large_files)
 587     fi
 588
 589     AC_MSG_CHECKING(if large file support is available)
 590     if test "x$wx_largefile" = "xyes"; then
 591         AC_DEFINE(HAVE_LARGEFILE_SUPPORT)
 592     fi
 593     AC_MSG_RESULT($wx_largefile)
 594 fi
 595 ])
 596
 597
 598 dnl Available from the GNU Autoconf Macro Archive at:
 599 dnl http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_const_cast.html
 600 dnl
 601 AC_DEFUN([AC_CXX_CONST_CAST],
 602 [AC_CACHE_CHECK(whether the compiler supports const_cast<>,
 603 ac_cv_cxx_const_cast,
 604 [AC_LANG_SAVE
 605  AC_LANG_CPLUSPLUS
 606  AC_TRY_COMPILE(,[int x = 0;const int& y = x;int& z = const_cast<int&>(y);return z;],
 607  ac_cv_cxx_const_cast=yes, ac_cv_cxx_const_cast=no)
 608  AC_LANG_RESTORE
 609 ])
 610 if test "$ac_cv_cxx_const_cast" = yes; then
 611   AC_DEFINE(HAVE_CONST_CAST,,[define if the compiler supports const_cast<>])
 612 fi
 613 ])
 614
 615 dnl and http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_static_cast.html
 616 AC_DEFUN([AC_CXX_STATIC_CAST],
 617 [AC_CACHE_CHECK(whether the compiler supports static_cast<>,
 618 ac_cv_cxx_static_cast,
 619 [AC_LANG_SAVE
 620  AC_LANG_CPLUSPLUS
 621  AC_TRY_COMPILE([#include <typeinfo>
 622 class Base { public : Base () {} virtual void f () = 0; };
 623 class Derived : public Base { public : Derived () {} virtual void f () {} };
 624 int g (Derived&) { return 0; }],[
 625 Derived d; Base& b = d; Derived& s = static_cast<Derived&> (b); return g (s);],
 626  ac_cv_cxx_static_cast=yes, ac_cv_cxx_static_cast=no)
 627  AC_LANG_RESTORE
 628 ])
 629 if test "$ac_cv_cxx_static_cast" = yes; then
 630   AC_DEFINE(HAVE_STATIC_CAST,, [define if the compiler supports static_cast<>])
 631 fi
 632 ])
 633
 634 # Configure paths for GTK+
 635 # Owen Taylor     1997-2001
 636
 637 dnl AM_PATH_GTK_2_0([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
 638 dnl Test for GTK+, and define GTK_CFLAGS and GTK_LIBS, if gthread is specified in MODULES,
 639 dnl pass to pkg-config
 640 dnl
 641 AC_DEFUN(AM_PATH_GTK_2_0,
 642 [dnl
 643 dnl Get the cflags and libraries from pkg-config
 644 dnl
 645 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       do not try to compile and run a test GTK+ program],
 646                     , enable_gtktest=yes)
 647
 648   pkg_config_args=gtk+-2.0
 649   for module in . $4
 650   do
 651       case "$module" in
 652          gthread)
 653              pkg_config_args="$pkg_config_args gthread-2.0"
 654          ;;
 655       esac
 656   done
 657
 658   no_gtk=""
 659
 660   AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
 661
 662   if test x$PKG_CONFIG != xno ; then
 663     if pkg-config --atleast-pkgconfig-version 0.7 ; then
 664       :
 665     else
 666       echo *** pkg-config too old; version 0.7 or better required.
 667       no_gtk=yes
 668       PKG_CONFIG=no
 669     fi
 670   else
 671     no_gtk=yes
 672   fi
 673
 674   min_gtk_version=ifelse([$1], ,2.0.0,$1)
 675   AC_MSG_CHECKING(for GTK+ - version >= $min_gtk_version)
 676
 677   if test x$PKG_CONFIG != xno ; then
 678     ## don't try to run the test against uninstalled libtool libs
 679     if $PKG_CONFIG --uninstalled $pkg_config_args; then
 680           echo "Will use uninstalled version of GTK+ found in PKG_CONFIG_PATH"
 681           enable_gtktest=no
 682     fi
 683
 684     if $PKG_CONFIG --atleast-version $min_gtk_version $pkg_config_args; then
 685           :
 686     else
 687           no_gtk=yes
 688     fi
 689   fi
 690
 691   if test x"$no_gtk" = x ; then
 692     GTK_CFLAGS=`$PKG_CONFIG $pkg_config_args --cflags`
 693     GTK_LIBS=`$PKG_CONFIG $pkg_config_args --libs`
 694     gtk_config_major_version=`$PKG_CONFIG --modversion gtk+-2.0 | \
 695            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 696     gtk_config_minor_version=`$PKG_CONFIG --modversion gtk+-2.0 | \
 697            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 698     gtk_config_micro_version=`$PKG_CONFIG --modversion gtk+-2.0 | \
 699            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 700     if test "x$enable_gtktest" = "xyes" ; then
 701       ac_save_CFLAGS="$CFLAGS"
 702       ac_save_LIBS="$LIBS"
 703       CFLAGS="$CFLAGS $GTK_CFLAGS"
 704       LIBS="$GTK_LIBS $LIBS"
 705 dnl
 706 dnl Now check if the installed GTK+ is sufficiently new. (Also sanity
 707 dnl checks the results of pkg-config to some extent)
 708 dnl
 709       rm -f conf.gtktest
 710       AC_TRY_RUN([
 711 #include <gtk/gtk.h>
 712 #include <stdio.h>
 713 #include <stdlib.h>
 714
 715 int
 716 main ()
 717 {
 718   int major, minor, micro;
 719   char *tmp_version;
 720
 721   system ("touch conf.gtktest");
 722
 723   /* HP/UX 9 (%@#!) writes to sscanf strings */
 724   tmp_version = g_strdup("$min_gtk_version");
 725   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 726      printf("%s, bad version string\n", "$min_gtk_version");
 727      exit(1);
 728    }
 729
 730   if ((gtk_major_version != $gtk_config_major_version) ||
 731       (gtk_minor_version != $gtk_config_minor_version) ||
 732       (gtk_micro_version != $gtk_config_micro_version))
 733     {
 734       printf("\n*** 'pkg-config --modversion gtk+-2.0' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 735              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 736              gtk_major_version, gtk_minor_version, gtk_micro_version);
 737       printf ("*** was found! If pkg-config was correct, then it is best\n");
 738       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 739       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 740       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 741       printf("*** required on your system.\n");
 742       printf("*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH\n");
 743       printf("*** to point to the correct configuration files\n");
 744     }
 745   else if ((gtk_major_version != GTK_MAJOR_VERSION) ||
 746            (gtk_minor_version != GTK_MINOR_VERSION) ||
 747            (gtk_micro_version != GTK_MICRO_VERSION))
 748     {
 749       printf("*** GTK+ header files (version %d.%d.%d) do not match\n",
 750              GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION);
 751       printf("*** library (version %d.%d.%d)\n",
 752              gtk_major_version, gtk_minor_version, gtk_micro_version);
 753     }
 754   else
 755     {
 756       if ((gtk_major_version > major) ||
 757         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 758         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 759       {
 760         return 0;
 761        }
 762      else
 763       {
 764         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 765                gtk_major_version, gtk_minor_version, gtk_micro_version);
 766         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 767                major, minor, micro);
 768         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 769         printf("***\n");
 770         printf("*** If you have already installed a sufficiently new version, this error\n");
 771         printf("*** probably means that the wrong copy of the pkg-config shell script is\n");
 772         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 773         printf("*** of GTK+, but you can also set the PKG_CONFIG environment to point to the\n");
 774         printf("*** correct copy of pkg-config. (In this case, you will have to\n");
 775         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 776         printf("*** so that the correct libraries are found at run-time))\n");
 777       }
 778     }
 779   return 1;
 780 }
 781 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 782        CFLAGS="$ac_save_CFLAGS"
 783        LIBS="$ac_save_LIBS"
 784      fi
 785   fi
 786   if test "x$no_gtk" = x ; then
 787      AC_MSG_RESULT(yes (version $gtk_config_major_version.$gtk_config_minor_version.$gtk_config_micro_version))
 788      ifelse([$2], , :, [$2])
 789   else
 790      AC_MSG_RESULT(no)
 791      if test "$PKG_CONFIG" = "no" ; then
 792        echo "*** A new enough version of pkg-config was not found."
 793        echo "*** See http://pkgconfig.sourceforge.net"
 794      else
 795        if test -f conf.gtktest ; then
 796         :
 797        else
 798           echo "*** Could not run GTK+ test program, checking why..."
 799           ac_save_CFLAGS="$CFLAGS"
 800           ac_save_LIBS="$LIBS"
 801           CFLAGS="$CFLAGS $GTK_CFLAGS"
 802           LIBS="$LIBS $GTK_LIBS"
 803           AC_TRY_LINK([
 804 #include <gtk/gtk.h>
 805 #include <stdio.h>
 806 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 807         [ echo "*** The test program compiled, but did not run. This usually means"
 808           echo "*** that the run-time linker is not finding GTK+ or finding the wrong"
 809           echo "*** version of GTK+. If it is not finding GTK+, you'll need to set your"
 810           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 811           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 812           echo "*** is required on your system"
 813           echo "***"
 814           echo "*** If you have an old version installed, it is best to remove it, although"
 815           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],
 816         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 817           echo "*** exact error that occured. This usually means GTK+ is incorrectly installed."])
 818           CFLAGS="$ac_save_CFLAGS"
 819           LIBS="$ac_save_LIBS"
 820        fi
 821      fi
 822      GTK_CFLAGS=""
 823      GTK_LIBS=""
 824      ifelse([$3], , :, [$3])
 825   fi
 826   AC_SUBST(GTK_CFLAGS)
 827   AC_SUBST(GTK_LIBS)
 828   rm -f conf.gtktest
 829 ])
 830
 831 # Configure paths for GTK+
 832 # Owen Taylor     97-11-3
 833
 834 dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
 835 dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
 836 dnl
 837 AC_DEFUN(AM_PATH_GTK,
 838 [dnl
 839 dnl Get the cflags and libraries from the gtk-config script
 840 dnl
 841 AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
 842             gtk_config_prefix="$withval", gtk_config_prefix="")
 843 AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
 844             gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
 845 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
 846                     , enable_gtktest=yes)
 847
 848   for module in . $4
 849   do
 850       case "$module" in
 851          gthread)
 852              gtk_config_args="$gtk_config_args gthread"
 853          ;;
 854       esac
 855   done
 856
 857   if test x$gtk_config_exec_prefix != x ; then
 858      gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
 859      if test x${GTK_CONFIG+set} != xset ; then
 860         GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
 861      fi
 862   fi
 863   if test x$gtk_config_prefix != x ; then
 864      gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
 865      if test x${GTK_CONFIG+set} != xset ; then
 866         GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
 867      fi
 868   fi
 869
 870   AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 871   min_gtk_version=ifelse([$1], ,0.99.7,$1)
 872   AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
 873   no_gtk=""
 874   if test "$GTK_CONFIG" = "no" ; then
 875     no_gtk=yes
 876   else
 877     GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
 878     GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
 879     gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
 880            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 881     gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
 882            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 883     gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
 884            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 885     if test "x$enable_gtktest" = "xyes" ; then
 886       ac_save_CFLAGS="$CFLAGS"
 887       ac_save_LIBS="$LIBS"
 888       CFLAGS="$CFLAGS $GTK_CFLAGS"
 889       LIBS="$GTK_LIBS $LIBS"
 890 dnl
 891 dnl Now check if the installed GTK is sufficiently new. (Also sanity
 892 dnl checks the results of gtk-config to some extent
 893 dnl
 894       rm -f conf.gtktest
 895       AC_TRY_RUN([
 896 #include <gtk/gtk.h>
 897 #include <stdio.h>
 898 #include <stdlib.h>
 899
 900 int
 901 main ()
 902 {
 903   int major, minor, micro;
 904   char *tmp_version;
 905
 906   system ("touch conf.gtktest");
 907
 908   /* HP/UX 9 (%@#!) writes to sscanf strings */
 909   tmp_version = g_strdup("$min_gtk_version");
 910   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 911      printf("%s, bad version string\n", "$min_gtk_version");
 912      exit(1);
 913    }
 914
 915   if ((gtk_major_version != $gtk_config_major_version) ||
 916       (gtk_minor_version != $gtk_config_minor_version) ||
 917       (gtk_micro_version != $gtk_config_micro_version))
 918     {
 919       printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 920              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 921              gtk_major_version, gtk_minor_version, gtk_micro_version);
 922       printf ("*** was found! If gtk-config was correct, then it is best\n");
 923       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 924       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 925       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 926       printf("*** required on your system.\n");
 927       printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
 928       printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
 929       printf("*** before re-running configure\n");
 930     }
 931 #if defined (GTK_MAJOR_VERSION) && defined (GTK_MINOR_VERSION) && defined (GTK_MICRO_VERSION)
 932   else if ((gtk_major_version != GTK_MAJOR_VERSION) ||
 933            (gtk_minor_version != GTK_MINOR_VERSION) ||
 934            (gtk_micro_version != GTK_MICRO_VERSION))
 935     {
 936       printf("*** GTK+ header files (version %d.%d.%d) do not match\n",
 937              GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION);
 938       printf("*** library (version %d.%d.%d)\n",
 939              gtk_major_version, gtk_minor_version, gtk_micro_version);
 940     }
 941 #endif /* defined (GTK_MAJOR_VERSION) ... */
 942   else
 943     {
 944       if ((gtk_major_version > major) ||
 945         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 946         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 947       {
 948         return 0;
 949        }
 950      else
 951       {
 952         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 953                gtk_major_version, gtk_minor_version, gtk_micro_version);
 954         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 955                major, minor, micro);
 956         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 957         printf("***\n");
 958         printf("*** If you have already installed a sufficiently new version, this error\n");
 959         printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
 960         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 961         printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
 962         printf("*** correct copy of gtk-config. (In this case, you will have to\n");
 963         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 964         printf("*** so that the correct libraries are found at run-time))\n");
 965       }
 966     }
 967   return 1;
 968 }
 969 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 970        CFLAGS="$ac_save_CFLAGS"
 971        LIBS="$ac_save_LIBS"
 972      fi
 973   fi
 974   if test "x$no_gtk" = x ; then
 975      AC_MSG_RESULT(yes)
 976      ifelse([$2], , :, [$2])
 977   else
 978      AC_MSG_RESULT(no)
 979      if test "$GTK_CONFIG" = "no" ; then
 980        echo "*** The gtk-config script installed by GTK could not be found"
 981        echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
 982        echo "*** your path, or set the GTK_CONFIG environment variable to the"
 983        echo "*** full path to gtk-config."
 984      else
 985        if test -f conf.gtktest ; then
 986         :
 987        else
 988           echo "*** Could not run GTK test program, checking why..."
 989           CFLAGS="$CFLAGS $GTK_CFLAGS"
 990           LIBS="$LIBS $GTK_LIBS"
 991           AC_TRY_LINK([
 992 #include <gtk/gtk.h>
 993 #include <stdio.h>
 994 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 995         [ echo "*** The test program compiled, but did not run. This usually means"
 996           echo "*** that the run-time linker is not finding GTK or finding the wrong"
 997           echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
 998           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 999           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
1000           echo "*** is required on your system"
1001           echo "***"
1002           echo "*** If you have an old version installed, it is best to remove it, although"
1003           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
1004           echo "***"
1005           echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
1006           echo "*** came with the system with the command"
1007           echo "***"
1008           echo "***    rpm --erase --nodeps gtk gtk-devel" ],
1009         [ echo "*** The test program failed to compile or link. See the file config.log for the"
1010           echo "*** exact error that occured. This usually means GTK was incorrectly installed"
1011           echo "*** or that you have moved GTK since it was installed. In the latter case, you"
1012           echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
1013           CFLAGS="$ac_save_CFLAGS"
1014           LIBS="$ac_save_LIBS"
1015        fi
1016      fi
1017      GTK_CFLAGS=""
1018      GTK_LIBS=""
1019      ifelse([$3], , :, [$3])
1020   fi
1021   AC_SUBST(GTK_CFLAGS)
1022   AC_SUBST(GTK_LIBS)
1023   rm -f conf.gtktest
1024 ])
1025
1026
1027 dnl PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4, action-if, action-not)
1028 dnl defines GSTUFF_LIBS, GSTUFF_CFLAGS, see pkg-config man page
1029 dnl also defines GSTUFF_PKG_ERRORS on error
1030 AC_DEFUN(PKG_CHECK_MODULES, [
1031   succeeded=no
1032
1033   if test -z "$PKG_CONFIG"; then
1034     AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
1035   fi
1036
1037   if test "$PKG_CONFIG" = "no" ; then
1038      echo "*** The pkg-config script could not be found. Make sure it is"
1039      echo "*** in your path, or set the PKG_CONFIG environment variable"
1040      echo "*** to the full path to pkg-config."
1041      echo "*** Or see http://www.freedesktop.org/software/pkgconfig to get pkg-config."
1042   else
1043      PKG_CONFIG_MIN_VERSION=0.9.0
1044      if $PKG_CONFIG --atleast-pkgconfig-version $PKG_CONFIG_MIN_VERSION; then
1045         AC_MSG_CHECKING(for $2)
1046
1047         if $PKG_CONFIG --exists "$2" ; then
1048             AC_MSG_RESULT(yes)
1049             succeeded=yes
1050
1051             AC_MSG_CHECKING($1_CFLAGS)
1052             $1_CFLAGS=`$PKG_CONFIG --cflags "$2"`
1053             AC_MSG_RESULT($$1_CFLAGS)
1054
1055             AC_MSG_CHECKING($1_LIBS)
1056             $1_LIBS=`$PKG_CONFIG --libs "$2"`
1057             AC_MSG_RESULT($$1_LIBS)
1058         else
1059             $1_CFLAGS=""
1060             $1_LIBS=""
1061             ## If we have a custom action on failure, don't print errors, but
1062             ## do set a variable so people can do so.
1063             $1_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "$2"`
1064             ifelse([$4], ,echo $$1_PKG_ERRORS,)
1065         fi
1066
1067         AC_SUBST($1_CFLAGS)
1068         AC_SUBST($1_LIBS)
1069      else
1070         echo "*** Your version of pkg-config is too old. You need version $PKG_CONFIG_MIN_VERSION or newer."
1071         echo "*** See http://www.freedesktop.org/software/pkgconfig"
1072      fi
1073   fi
1074
1075   if test $succeeded = yes; then
1076      ifelse([$3], , :, [$3])
1077   else
1078      ifelse([$4], , AC_MSG_ERROR([Library requirements ($2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.]), [$4])
1079   fi
1080 ])
1081
1082
1083
1084 # Configure paths for SDL
1085 # Sam Lantinga 9/21/99
1086 # stolen from Manish Singh
1087 # stolen back from Frank Belew
1088 # stolen from Manish Singh
1089 # Shamelessly stolen from Owen Taylor
1090
1091 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
1092 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
1093 dnl
1094 AC_DEFUN(AM_PATH_SDL,
1095 [dnl
1096 dnl Get the cflags and libraries from the sdl-config script
1097 dnl
1098 AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
1099             sdl_prefix="$withval", sdl_prefix="")
1100 AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
1101             sdl_exec_prefix="$withval", sdl_exec_prefix="")
1102 AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
1103                     , enable_sdltest=yes)
1104
1105   if test x$sdl_exec_prefix != x ; then
1106      sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
1107      if test x${SDL_CONFIG+set} != xset ; then
1108         SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
1109      fi
1110   fi
1111   if test x$sdl_prefix != x ; then
1112      sdl_args="$sdl_args --prefix=$sdl_prefix"
1113      if test x${SDL_CONFIG+set} != xset ; then
1114         SDL_CONFIG=$sdl_prefix/bin/sdl-config
1115      fi
1116   fi
1117
1118   AC_REQUIRE([AC_CANONICAL_TARGET])
1119   PATH="$prefix/bin:$prefix/usr/bin:$PATH"
1120   AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
1121   min_sdl_version=ifelse([$1], ,0.11.0,$1)
1122   AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
1123   no_sdl=""
1124   if test "$SDL_CONFIG" = "no" ; then
1125     no_sdl=yes
1126   else
1127     SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
1128     SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
1129
1130     sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
1131            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
1132     sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
1133            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
1134     sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
1135            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
1136     if test "x$enable_sdltest" = "xyes" ; then
1137       ac_save_CFLAGS="$CFLAGS"
1138       ac_save_LIBS="$LIBS"
1139       CFLAGS="$CFLAGS $SDL_CFLAGS"
1140       LIBS="$LIBS $SDL_LIBS"
1141 dnl
1142 dnl Now check if the installed SDL is sufficiently new. (Also sanity
1143 dnl checks the results of sdl-config to some extent
1144 dnl
1145       rm -f conf.sdltest
1146       AC_TRY_RUN([
1147 #include <stdio.h>
1148 #include <stdlib.h>
1149 #include <string.h>
1150 #include "SDL.h"
1151
1152 char*
1153 my_strdup (char *str)
1154 {
1155   char *new_str;
1156
1157   if (str)
1158     {
1159       new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
1160       strcpy (new_str, str);
1161     }
1162   else
1163     new_str = NULL;
1164
1165   return new_str;
1166 }
1167
1168 int main (int argc, char *argv[])
1169 {
1170   int major, minor, micro;
1171   char *tmp_version;
1172
1173   /* This hangs on some systems (?)
1174   system ("touch conf.sdltest");
1175   */
1176   { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
1177
1178   /* HP/UX 9 (%@#!) writes to sscanf strings */
1179   tmp_version = my_strdup("$min_sdl_version");
1180   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
1181      printf("%s, bad version string\n", "$min_sdl_version");
1182      exit(1);
1183    }
1184
1185    if (($sdl_major_version > major) ||
1186       (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
1187       (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
1188     {
1189       return 0;
1190     }
1191   else
1192     {
1193       printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
1194       printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
1195       printf("*** best to upgrade to the required version.\n");
1196       printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
1197       printf("*** to point to the correct copy of sdl-config, and remove the file\n");
1198       printf("*** config.cache before re-running configure\n");
1199       return 1;
1200     }
1201 }
1202
1203 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
1204        CFLAGS="$ac_save_CFLAGS"
1205        LIBS="$ac_save_LIBS"
1206      fi
1207   fi
1208   if test "x$no_sdl" = x ; then
1209      AC_MSG_RESULT(yes)
1210      ifelse([$2], , :, [$2])
1211   else
1212      AC_MSG_RESULT(no)
1213      if test "$SDL_CONFIG" = "no" ; then
1214        echo "*** The sdl-config script installed by SDL could not be found"
1215        echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
1216        echo "*** your path, or set the SDL_CONFIG environment variable to the"
1217        echo "*** full path to sdl-config."
1218      else
1219        if test -f conf.sdltest ; then
1220         :
1221        else
1222           echo "*** Could not run SDL test program, checking why..."
1223           CFLAGS="$CFLAGS $SDL_CFLAGS"
1224           LIBS="$LIBS $SDL_LIBS"
1225           AC_TRY_LINK([
1226 #include <stdio.h>
1227 #include "SDL.h"
1228
1229 int main(int argc, char *argv[])
1230 { return 0; }
1231 #undef  main
1232 #define main K_and_R_C_main
1233 ],      [ return 0; ],
1234         [ echo "*** The test program compiled, but did not run. This usually means"
1235           echo "*** that the run-time linker is not finding SDL or finding the wrong"
1236           echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
1237           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1238           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
1239           echo "*** is required on your system"
1240           echo "***"
1241           echo "*** If you have an old version installed, it is best to remove it, although"
1242           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
1243         [ echo "*** The test program failed to compile or link. See the file config.log for the"
1244           echo "*** exact error that occured. This usually means SDL was incorrectly installed"
1245           echo "*** or that you have moved SDL since it was installed. In the latter case, you"
1246           echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
1247           CFLAGS="$ac_save_CFLAGS"
1248           LIBS="$ac_save_LIBS"
1249        fi
1250      fi
1251      SDL_CFLAGS=""
1252      SDL_LIBS=""
1253      ifelse([$3], , :, [$3])
1254   fi
1255   AC_SUBST(SDL_CFLAGS)
1256   AC_SUBST(SDL_LIBS)
1257   rm -f conf.sdltest
1258 ])
1259
1260 dnl ---------------------------------------------------------------------------
1261 dnl Support macros for makefiles generated by BAKEFILE.
1262 dnl ---------------------------------------------------------------------------
1263
1264 dnl Lots of compiler & linker detection code contained here was taken from
1265 dnl wxWindows configure.in script (see http://www.wxwindows.org)
1266
1267
1268
1269 dnl ---------------------------------------------------------------------------
1270 dnl AC_BAKEFILE_GNUMAKE
1271 dnl
1272 dnl Detects GNU make
1273 dnl ---------------------------------------------------------------------------
1274
1275 AC_DEFUN(AC_BAKEFILE_GNUMAKE,
1276 [
1277     dnl does make support "-include" (only GNU make does AFAIK)?
1278     AC_CACHE_CHECK([if make is GNU make], bakefile_cv_prog_makeisgnu,
1279     [
1280         if ( ${SHELL-sh} -c "${MAKE-make} --version" 2> /dev/null |
1281                 egrep -s GNU > /dev/null); then
1282             bakefile_cv_prog_makeisgnu="yes"
1283         else
1284             bakefile_cv_prog_makeisgnu="no"
1285         fi
1286     ])
1287
1288     if test "x$bakefile_cv_prog_makeisgnu" = "xyes"; then
1289         IF_GNU_MAKE=""
1290     else
1291         IF_GNU_MAKE="#"
1292     fi
1293     AC_SUBST(IF_GNU_MAKE)
1294 ])
1295
1296 dnl ---------------------------------------------------------------------------
1297 dnl AC_BAKEFILE_PLATFORM
1298 dnl
1299 dnl Detects platform and sets PLATFORM_XXX variables accordingly
1300 dnl ---------------------------------------------------------------------------
1301
1302 AC_DEFUN(AC_BAKEFILE_PLATFORM,
1303 [
1304     PLATFORM_UNIX=0
1305     PLATFORM_WIN32=0
1306     PLATFORM_MSDOS=0
1307     PLATFORM_MAC=0
1308     PLATFORM_MACOSX=0
1309     PLATFORM_OS2=0
1310
1311     if test "x$BAKEFILE_FORCE_PLATFORM" = "x"; then
1312         case "${BAKEFILE_HOST}" in
1313             *-*-cygwin* | *-*-mingw32* )
1314                 PLATFORM_WIN32=1
1315             ;;
1316             *-pc-msdosdjgpp )
1317                 PLATFORM_MSDOS=1
1318             ;;
1319             *-pc-os2_emx | *-pc-os2-emx )
1320                 PLATFORM_OS2=1
1321             ;;
1322             powerpc-*-darwin* )
1323                 PLATFORM_MAC=1
1324                 PLATFORM_MACOSX=1
1325             ;;
1326             * )
1327                 PLATFORM_UNIX=1
1328             ;;
1329         esac
1330     else
1331         case "$BAKEFILE_FORCE_PLATFORM" in
1332             win32 )
1333                 PLATFORM_WIN32=1
1334             ;;
1335             msdos )
1336                 PLATFORM_MSDOS=1
1337             ;;
1338             os2 )
1339                 PLATFORM_OS2=1
1340             ;;
1341             darwin )
1342                 PLATFORM_MAC=1
1343                 PLATFORM_MACOSX=1
1344             ;;
1345             unix )
1346                 PLATFORM_UNIX=1
1347             ;;
1348             * )
1349                 AC_MSG_ERROR([Unknown platform: $BAKEFILE_FORCE_PLATFORM])
1350             ;;
1351         esac
1352     fi
1353
1354     AC_SUBST(PLATFORM_UNIX)
1355     AC_SUBST(PLATFORM_WIN32)
1356     AC_SUBST(PLATFORM_MSDOS)
1357     AC_SUBST(PLATFORM_MAC)
1358     AC_SUBST(PLATFORM_MACOSX)
1359     AC_SUBST(PLATFORM_OS2)
1360 ])
1361
1362
1363
1364 dnl ---------------------------------------------------------------------------
1365 dnl AC_BAKEFILE_SUFFIXES
1366 dnl
1367 dnl Detects shared various suffixes for shared libraries, libraries, programs,
1368 dnl plugins etc.
1369 dnl ---------------------------------------------------------------------------
1370
1371 AC_DEFUN(AC_BAKEFILE_SUFFIXES,
1372 [
1373     SO_SUFFIX="so"
1374     SO_SUFFIX_MODULE="so"
1375     EXEEXT=""
1376     LIBPREFIX=lib
1377     DLLPREFIX=lib
1378     DLLPREFIX_MODULE=
1379
1380     case "${BAKEFILE_HOST}" in
1381         *-hp-hpux* )
1382             SO_SUFFIX="sl"
1383             SO_SUFFIX_MODULE="sl"
1384         ;;
1385         *-*-aix* )
1386             dnl quoting from
1387             dnl http://www-1.ibm.com/servers/esdd/articles/gnu.html:
1388             dnl     Both archive libraries and shared libraries on AIX have an
1389             dnl     .a extension. This will explain why you can't link with an
1390             dnl     .so and why it works with the name changed to .a.
1391             SO_SUFFIX="a"
1392             SO_SUFFIX_MODULE="a"
1393         ;;
1394         *-*-cygwin* | *-*-mingw32* )
1395             SO_SUFFIX="dll"
1396             SO_SUFFIX_MODULE="dll"
1397             EXEEXT=".exe"
1398             DLLPREFIX=""
1399         ;;
1400         *-pc-msdosdjgpp )
1401             EXEEXT=".exe"
1402             DLLPREFIX=""
1403         ;;
1404         *-pc-os2_emx | *-pc-os2-emx )
1405             EXEEXT=".exe"
1406             DLLPREFIX=""
1407             LIBPREFIX=""
1408         ;;
1409         powerpc-*-darwin* )
1410             SO_SUFFIX="dylib"
1411             SO_SUFFIX_MODULE="bundle"
1412         ;;
1413     esac
1414
1415     AC_SUBST(SO_SUFFIX)
1416     AC_SUBST(SO_SUFFIX_MODULE)
1417     AC_SUBST(EXEEXT)
1418     AC_SUBST(LIBPREFIX)
1419     AC_SUBST(DLLPREFIX)
1420     AC_SUBST(DLLPREFIX_MODULE)
1421 ])
1422
1423
1424 dnl ---------------------------------------------------------------------------
1425 dnl AC_BAKEFILE_SHARED_LD
1426 dnl
1427 dnl Detects command for making shared libraries, substitutes SHARED_LD_CC
1428 dnl and SHARED_LD_CXX.
1429 dnl ---------------------------------------------------------------------------
1430
1431 AC_DEFUN(AC_BAKEFILE_SHARED_LD,
1432 [
1433     dnl Defaults for GCC and ELF .so shared libs:
1434     SHARED_LD_CC="\$(CC) -shared -o"
1435     SHARED_LD_CXX="\$(CXX) -shared -o"
1436
1437     dnl the extra compiler flags needed for compilation of shared library
1438     if test "x$GCC" = "xyes"; then
1439         dnl the switch for gcc is the same under all platforms
1440         PIC_FLAG="-fPIC"
1441     fi
1442
1443     case "${BAKEFILE_HOST}" in
1444       *-hp-hpux* )
1445         dnl default settings are good for gcc but not for the native HP-UX
1446         if test "x$GCC" = "xyes"; then
1447             dnl -o flag must be after PIC flag
1448             SHARED_LD_CC="${CC} -shared ${PIC_FLAG} -o"
1449             SHARED_LD_CXX="${CXX} -shared ${PIC_FLAG} -o"
1450         else
1451             dnl no idea why it wants it, but it does
1452             LDFLAGS="$LDFLAGS -L/usr/lib"
1453
1454             SHARED_LD_CC="${CC} -b -o"
1455             SHARED_LD_CXX="${CXX} -b -o"
1456             PIC_FLAG="+Z"
1457         fi
1458       ;;
1459
1460       *-*-linux* )
1461         if test "x$GCC" != "xyes"; then
1462             AC_CACHE_CHECK([for Intel compiler], bakefile_cv_prog_icc,
1463             [
1464                 AC_TRY_COMPILE([],
1465                     [
1466                         #ifndef __INTEL_COMPILER
1467                         #error Not icc
1468                         #endif
1469                     ],
1470                     bakefile_cv_prog_icc=yes,
1471                     bakefile_cv_prog_icc=no
1472                 )
1473             ])
1474             if test "$bakefile_cv_prog_icc" = "yes"; then
1475                 PIC_FLAG="-KPIC"
1476             fi
1477         fi
1478       ;;
1479
1480       *-*-solaris2* )
1481         if test "x$GCC" != xyes ; then
1482             SHARED_LD_CC="${CC} -G -o"
1483             SHARED_LD_CXX="${CXX} -G -o"
1484             PIC_FLAG="-KPIC"
1485         fi
1486       ;;
1487
1488       *-*-darwin* )
1489         dnl For Unix to MacOS X porting instructions, see:
1490         dnl http://fink.sourceforge.net/doc/porting/porting.html
1491         CFLAGS="$CFLAGS -fno-common"
1492         CXXFLAGS="$CXXFLAGS -fno-common"
1493
1494         dnl Most apps benefit from being fully binded (its faster and static
1495         dnl variables initialized at startup work).
1496         dnl This can be done either with the exe linker flag -Wl,-bind_at_load
1497         dnl or with a double stage link in order to create a single module
1498         dnl "-init _wxWindowsDylibInit" not useful with lazy linking solved
1499
1500         dnl If using newer dev tools then there is a -single_module flag that
1501         dnl we can use to do this, otherwise we'll need to use a helper
1502         dnl script.  Check the version of gcc to see which way we can go:
1503         AC_CACHE_CHECK([for gcc 3.1 or later], wx_cv_gcc31, [
1504            AC_TRY_COMPILE([],
1505                [
1506                    #if (__GNUC__ < 3) || \
1507                        ((__GNUC__ == 3) && (__GNUC_MINOR__ < 1))
1508                        #error old gcc
1509                    #endif
1510                ],
1511                [
1512                    wx_cv_gcc31=yes
1513                ],
1514                [
1515                    wx_cv_gcc31=no
1516                ]
1517            )
1518         ])
1519         if test "$wx_cv_gcc31" = "no"; then
1520             cat <<EOF >shared-ld-sh
1521 #!/bin/sh
1522 #-----------------------------------------------------------------------------
1523 #-- Name:        distrib/mac/shared-ld-sh
1524 #-- Purpose:     Link a mach-o dynamic shared library for Darwin / Mac OS X
1525 #-- Author:      Gilles Depeyrot
1526 #-- Copyright:   (c) 2002 Gilles Depeyrot
1527 #-- Licence:     any use permitted
1528 #-----------------------------------------------------------------------------
1529
1530 verbose=0
1531 args=""
1532 objects=""
1533 linking_flag="-dynamiclib"
1534
1535 while test \${#} -gt 0; do
1536     case \${1} in
1537
1538        -v)
1539         verbose=1
1540         ;;
1541
1542        -o|-compatibility_version|-current_version|-framework|-undefined|-install_name)
1543         # collect these options and values
1544         args="\${args} \${1} \${2}"
1545         shift
1546         ;;
1547
1548        -l*|-L*|-flat_namespace|-headerpad_max_install_names)
1549         # collect these options
1550         args="\${args} \${1}"
1551         ;;
1552
1553        -dynamiclib|-bundle)
1554         linking_flag="\${1}"
1555         ;;
1556
1557        -*)
1558         echo "shared-ld: unhandled option '\${1}'"
1559         exit 1
1560         ;;
1561
1562         *.o | *.a | *.dylib)
1563         # collect object files
1564         objects="\${objects} \${1}"
1565         ;;
1566
1567         *)
1568         echo "shared-ld: unhandled argument '\${1}'"
1569         exit 1
1570         ;;
1571
1572     esac
1573     shift
1574 done
1575
1576 #
1577 # Link one module containing all the others
1578 #
1579 if test \${verbose} = 1; then
1580     echo "c++ -r -keep_private_externs -nostdlib \${objects} -o master.\$\$.o"
1581 fi
1582 c++ -r -keep_private_externs -nostdlib \${objects} -o master.\$\$.o
1583 status=\$?
1584 if test \${status} != 0; then
1585     exit \${status}
1586 fi
1587
1588 #
1589 # Link the shared library from the single module created
1590 #
1591 if test \${verbose} = 1; then
1592     echo "cc \${linking_flag} master.\$\$.o \${args}"
1593 fi
1594 c++ \${linking_flag} master.\$\$.o \${args}
1595 status=\$?
1596 if test \${status} != 0; then
1597     exit \${status}
1598 fi
1599
1600 #
1601 # Remove intermediate module
1602 #
1603 rm -f master.\$\$.o
1604
1605 exit 0
1606 EOF
1607             chmod +x shared-ld-sh
1608
1609             dnl Use the shared-ld-sh helper script
1610             SHARED_LD_CC="`pwd`/shared-ld-sh -dynamiclib -headerpad_max_install_names -o"
1611             SHARED_LD_MODULE_CC="`pwd`/shared-ld-sh -bundle -headerpad_max_install_names -o"
1612             SHARED_LD_CXX="$SHARED_LD_CC"
1613             SHARED_LD_MODULE_CXX="$SHARED_LD_MODULE_CC"
1614         else
1615             dnl Use the -single_module flag and let the linker do it for us
1616             SHARED_LD_CC="\${CC} -dynamiclib -single_module -headerpad_max_install_names -o"
1617             SHARED_LD_MODULE_CC="\${CC} -bundle -single_module -headerpad_max_install_names -o"
1618             SHARED_LD_CXX="\${CXX} -dynamiclib -single_module -headerpad_max_install_names -o"
1619             SHARED_LD_MODULE_CXX="\${CXX} -bundle -single_module -headerpad_max_install_names -o"
1620         fi
1621
1622         PIC_FLAG="-dynamic -fPIC"
1623       ;;
1624
1625       *-*-aix* )
1626         dnl default settings are ok for gcc
1627         if test "x$GCC" != "xyes"; then
1628             dnl the abs path below used to be hardcoded here so I guess it must
1629             dnl be some sort of standard location under AIX?
1630             AC_CHECK_PROG(AIX_CXX_LD, makeC++SharedLib,
1631                           makeC++SharedLib, /usr/lpp/xlC/bin/makeC++SharedLib)
1632             dnl FIXME - what about makeCSharedLib?
1633             SHARED_LD_CC="$AIX_CC_LD -p 0 -o"
1634             SHARED_LD_CXX="$AIX_CXX_LD -p 0 -o"
1635         fi
1636       ;;
1637
1638       *-*-beos* )
1639         dnl can't use gcc under BeOS for shared library creation because it
1640         dnl complains about missing 'main'
1641         SHARED_LD_CC="${LD} -shared -o"
1642         SHARED_LD_CXX="${LD} -shared -o"
1643       ;;
1644
1645       *-*-irix* )
1646         dnl default settings are ok for gcc
1647         if test "x$GCC" != "xyes"; then
1648             PIC_FLAG="-KPIC"
1649         fi
1650       ;;
1651
1652       *-*-cygwin* | *-*-mingw32* )
1653         PIC_FLAG=""
1654       ;;
1655
1656       *-*-freebsd* | *-*-openbsd* | *-*-netbsd* | \
1657       *-*-sunos4* | \
1658       *-*-osf* | \
1659       *-*-dgux5* | \
1660       *-pc-os2_emx | *-pc-os2-emx | \
1661       *-*-sysv5* )
1662         dnl defaults are ok
1663       ;;
1664
1665       *)
1666         AC_MSG_ERROR(unknown system type $BAKEFILE_HOST.)
1667     esac
1668
1669     if test "x$SHARED_LD_MODULE_CC" = "x" ; then
1670         SHARED_LD_MODULE_CC="$SHARED_LD_CC"
1671     fi
1672     if test "x$SHARED_LD_MODULE_CXX" = "x" ; then
1673         SHARED_LD_MODULE_CXX="$SHARED_LD_CXX"
1674     fi
1675
1676     AC_SUBST(SHARED_LD_CC)
1677     AC_SUBST(SHARED_LD_CXX)
1678     AC_SUBST(SHARED_LD_MODULE_CC)
1679     AC_SUBST(SHARED_LD_MODULE_CXX)
1680     AC_SUBST(PIC_FLAG)
1681 ])
1682
1683
1684 dnl ---------------------------------------------------------------------------
1685 dnl AC_BAKEFILE_SHARED_VERSIONS
1686 dnl
1687 dnl Detects linker options for attaching versions (sonames) to shared  libs.
1688 dnl ---------------------------------------------------------------------------
1689
1690 AC_DEFUN(AC_BAKEFILE_SHARED_VERSIONS,
1691 [
1692     USE_SOVERSION=0
1693     USE_SOVERLINUX=0
1694     USE_SOVERSOLARIS=0
1695     USE_SOSYMLINKS=0
1696     USE_MACVERSION=0
1697     SONAME_FLAG=
1698
1699     case "${BAKEFILE_HOST}" in
1700       *-*-linux* )
1701         SONAME_FLAG="-Wl,-soname,"
1702         USE_SOVERSION=1
1703         USE_SOVERLINUX=1
1704         USE_SOSYMLINKS=1
1705       ;;
1706
1707       *-*-solaris2* )
1708         SONAME_FLAG="-h "
1709         USE_SOVERSION=1
1710         USE_SOVERSOLARIS=1
1711         USE_SOSYMLINKS=1
1712       ;;
1713
1714       *-*-darwin* )
1715         USE_MACVERSION=1
1716         USE_SOVERSION=1
1717         USE_SOSYMLINKS=1
1718       ;;
1719     esac
1720
1721     AC_SUBST(USE_SOVERSION)
1722     AC_SUBST(USE_SOVERLINUX)
1723     AC_SUBST(USE_SOVERSOLARIS)
1724     AC_SUBST(USE_MACVERSION)
1725     AC_SUBST(USE_SOSYMLINKS)
1726     AC_SUBST(SONAME_FLAG)
1727 ])
1728
1729
1730 dnl ---------------------------------------------------------------------------
1731 dnl AC_BAKEFILE_DEPS
1732 dnl
1733 dnl Detects available C/C++ dependency tracking options
1734 dnl ---------------------------------------------------------------------------
1735
1736 AC_DEFUN(AC_BAKEFILE_DEPS,
1737 [
1738     AC_MSG_CHECKING([for dependency tracking method])
1739     DEPS_TRACKING=0
1740
1741     if test "x$GCC" = "xyes"; then
1742         DEPSMODE=gcc
1743         DEPS_TRACKING=1
1744         case "${BAKEFILE_HOST}" in
1745             powerpc-*-darwin* )
1746                 dnl -cpp-precomp (the default) conflicts with -MMD option
1747                 dnl used by bk-deps (see also http://developer.apple.com/documentation/Darwin/Conceptual/PortingUnix/compiling/chapter_4_section_3.html)
1748                 DEPSFLAG_GCC="-no-cpp-precomp -MMD"
1749             ;;
1750             * )
1751                 DEPSFLAG_GCC="-MMD"
1752             ;;
1753         esac
1754         AC_MSG_RESULT([gcc])
1755     else
1756         AC_MSG_RESULT([none])
1757     fi
1758
1759     if test $DEPS_TRACKING = 1 ; then
1760         cat <<EOF >bk-deps
1761 #!/bin/sh
1762
1763 # This script is part of Bakefile (http://bakefile.sourceforge.net) autoconf
1764 # script. It is used to track C/C++ files dependencies in portable way.
1765 #
1766 # Permission is given to use this file in any way.
1767
1768 DEPSMODE=$DEPSMODE
1769 DEPSDIR=.deps
1770 DEPSFLAG_GCC="$DEPSFLAG_GCC"
1771
1772 mkdir -p \$DEPSDIR
1773
1774 if test \$DEPSMODE = gcc ; then
1775     \${*} \${DEPSFLAG_GCC}
1776     status=\${?}
1777     if test \${status} != 0 ; then
1778         exit \${status}
1779     fi
1780     # move created file to the location we want it in:
1781     while test \${#} -gt 0; do
1782         case "\${1}" in
1783             -o )
1784                 shift
1785                 objfile=\${1}
1786             ;;
1787             -* )
1788             ;;
1789             * )
1790                 srcfile=\${1}
1791             ;;
1792         esac
1793         shift
1794     done
1795     depfile=\`basename \$srcfile | sed -e 's/\..*$/.d/g'\`
1796     depobjname=\`echo \$depfile |sed -e 's/\.d/.o/g'\`
1797     if test -f \$depfile ; then
1798         sed -e "s,\$depobjname:,\$objfile:,g" \$depfile >\${DEPSDIR}/\${objfile}.d
1799         rm -f \$depfile
1800     else
1801         depfile=\`basename \$objfile | sed -e 's/\..*$/.d/g'\`
1802         if test -f \$depfile ; then
1803             sed -e "/^\$objfile/!s,\$depobjname:,\$objfile:,g" \$depfile >\${DEPSDIR}/\${objfile}.d
1804             rm -f \$depfile
1805         fi
1806     fi
1807     exit 0
1808 else
1809     \${*}
1810     exit \${?}
1811 fi
1812 EOF
1813         chmod +x bk-deps
1814     fi
1815
1816     AC_SUBST(DEPS_TRACKING)
1817 ])
1818
1819 dnl ---------------------------------------------------------------------------
1820 dnl AC_BAKEFILE_CHECK_BASIC_STUFF
1821 dnl
1822 dnl Checks for presence of basic programs, such as C and C++ compiler, "ranlib"
1823 dnl or "install"
1824 dnl ---------------------------------------------------------------------------
1825
1826 AC_DEFUN(AC_BAKEFILE_CHECK_BASIC_STUFF,
1827 [
1828     AC_PROG_RANLIB
1829     AC_PROG_INSTALL
1830     AC_PROG_LN_S
1831
1832     AC_PROG_MAKE_SET
1833     AC_SUBST(MAKE_SET)
1834
1835     AC_CHECK_TOOL(AR, ar, ar)
1836     AC_CHECK_TOOL(STRIP, strip, :)
1837     AC_CHECK_TOOL(NM, nm, :)
1838
1839     case ${BAKEFILE_HOST} in
1840         *-hp-hpux* )
1841             INSTALL_DIR="mkdir"
1842             ;;
1843         *)  INSTALL_DIR="$INSTALL -d"
1844             ;;
1845     esac
1846     AC_SUBST(INSTALL_DIR)
1847
1848     LDFLAGS_GUI=
1849     case ${BAKEFILE_HOST} in
1850         *-*-cygwin* | *-*-mingw32* )
1851         LDFLAGS_GUI="-Wl,--subsystem,windows -mwindows"
1852     esac
1853     AC_SUBST(LDFLAGS_GUI)
1854 ])
1855
1856
1857 dnl ---------------------------------------------------------------------------
1858 dnl AC_BAKEFILE_RES_COMPILERS
1859 dnl
1860 dnl Checks for presence of resource compilers for win32 or mac
1861 dnl ---------------------------------------------------------------------------
1862
1863 AC_DEFUN(AC_BAKEFILE_RES_COMPILERS,
1864 [
1865     RESCOMP=
1866     SETFILE=
1867
1868     case ${BAKEFILE_HOST} in
1869         *-*-cygwin* | *-*-mingw32* )
1870             dnl Check for win32 resources compiler:
1871             if test "$build" != "$host" ; then
1872                 RESCOMP=$host_alias-windres
1873             else
1874                 AC_CHECK_PROG(RESCOMP, windres, windres, windres)
1875             fi
1876          ;;
1877
1878       *-*-darwin* )
1879             AC_CHECK_PROG(RESCOMP, Rez, Rez, /Developer/Tools/Rez)
1880             AC_CHECK_PROG(SETFILE, SetFile, SetFile, /Developer/Tools/SetFile)
1881         ;;
1882     esac
1883
1884     AC_SUBST(RESCOMP)
1885     AC_SUBST(SETFILE)
1886 ])
1887
1888 dnl ---------------------------------------------------------------------------
1889 dnl AC_BAKEFILE_PRECOMP_HEADERS
1890 dnl
1891 dnl Check for precompiled headers support (GCC >= 3.4)
1892 dnl ---------------------------------------------------------------------------
1893
1894 AC_DEFUN(AC_BAKEFILE_PRECOMP_HEADERS,
1895 [
1896
1897     AC_ARG_ENABLE([precomp-headers],
1898                   [  --disable-precomp-headers  don't use precompiled headers even if compiler can],
1899                   [bk_use_pch="$enableval"])
1900
1901     GCC_PCH=0
1902
1903     if test "x$bk_use_pch" = "x" -o "x$bk_use_pch" = "xyes" ; then
1904         if test "x$GCC" = "xyes"; then
1905             dnl test if we have gcc-3.4:
1906             AC_MSG_CHECKING([if the compiler supports precompiled headers])
1907             AC_TRY_COMPILE([],
1908                 [
1909                     #if !defined(__GNUC__) || !defined(__GNUC_MINOR__)
1910                         #error "no pch support"
1911                     #endif
1912                     #if (__GNUC__ < 3)
1913                         #error "no pch support"
1914                     #endif
1915                     #if (__GNUC__ == 3) && \
1916                        ((!defined(__APPLE_CC__) && (__GNUC_MINOR__ < 4)) || \
1917                        ( defined(__APPLE_CC__) && (__GNUC_MINOR__ < 3)))
1918                         #error "no pch support"
1919                     #endif
1920                 ],
1921                 [
1922                     AC_MSG_RESULT([yes])
1923                     dnl FIXME - this is temporary, till .gch dependencies
1924                     dnl         are fixed in generated Makefiles
1925                     CPPFLAGS="-fpch-deps $CPPFLAGS"
1926                     GCC_PCH=1
1927                 ],
1928                 [
1929                     AC_MSG_RESULT([no])
1930                 ])
1931             if test $GCC_PCH = 1 ; then
1932                 cat <<EOF >bk-make-pch
1933 #!/bin/sh
1934
1935 # This script is part of Bakefile (http://bakefile.sourceforge.net) autoconf
1936 # script. It is used to generated precompiled headers.
1937 #
1938 # Permission is given to use this file in any way.
1939
1940 outfile="\${1}"
1941 header="\${2}"
1942 shift
1943 shift
1944
1945 compiler=
1946 headerfile=
1947 while test \${#} -gt 0; do
1948     case "\${1}" in
1949         -I* )
1950             incdir=\`echo \${1} | sed -e 's/-I\(.*\)/\1/g'\`
1951             if test "x\${headerfile}" = "x" -a -f "\${incdir}/\${header}" ; then
1952                 headerfile="\${incdir}/\${header}"
1953             fi
1954         ;;
1955     esac
1956     compiler="\${compiler} \${1}"
1957     shift
1958 done
1959
1960 if test "x\${headerfile}" = "x" ; then
1961     echo "error: can't find header \${header} in include paths" >2
1962 else
1963     if test -f \${outfile} ; then
1964         rm -f \${outfile}
1965     else
1966         mkdir -p \`dirname \${outfile}\`
1967     fi
1968     depsfile=".deps/\`basename \${outfile}\`.d"
1969     mkdir -p .deps
1970     # can do this because gcc is >= 3.4:
1971     \${compiler} -o \${outfile} -MMD -MF "\${depsfile}" "\${headerfile}"
1972     exit \${?}
1973 fi
1974 EOF
1975                 chmod +x bk-make-pch
1976             fi
1977         fi
1978     fi
1979
1980     AC_SUBST(GCC_PCH)
1981 ])
1982
1983
1984
1985 dnl ---------------------------------------------------------------------------
1986 dnl AC_BAKEFILE
1987 dnl
1988 dnl To be used in configure.in of any project using Bakefile-generated mks
1989 dnl
1990 dnl Behaviour can be modified by setting following variables:
1991 dnl    BAKEFILE_CHECK_BASICS    set to "no" if you don't want bakefile to
1992 dnl                             to perform check for basic tools like ranlib
1993 dnl    BAKEFILE_HOST            set this to override host detection, defaults
1994 dnl                             to ${host}
1995 dnl    BAKEFILE_FORCE_PLATFORM  set to override platform detection
1996 dnl ---------------------------------------------------------------------------
1997
1998 AC_DEFUN(AC_BAKEFILE,
1999 [
2000     if test "x$BAKEFILE_HOST" = "x"; then
2001         BAKEFILE_HOST="${host}"
2002     fi
2003
2004     if test "x$BAKEFILE_CHECK_BASICS" != "xno"; then
2005         AC_BAKEFILE_CHECK_BASIC_STUFF
2006     fi
2007     AC_BAKEFILE_GNUMAKE
2008     AC_BAKEFILE_PLATFORM
2009     AC_BAKEFILE_SUFFIXES
2010     AC_BAKEFILE_SHARED_LD
2011     AC_BAKEFILE_SHARED_VERSIONS
2012     AC_BAKEFILE_DEPS
2013     AC_BAKEFILE_RES_COMPILERS
2014
2015     builtin(include, autoconf_inc.m4)
2016 ])
2017