]> git.saurik.com Git - wxWidgets.git/blobdiff - acinclude.m4
don't do anything before including the PCH header
[wxWidgets.git] / acinclude.m4
index e68a873f6a5002674c4aa1aaa2112c0612ef489b..f1b9dff20dfe6661099a89c239b39b81bfc19516 100644 (file)
@@ -132,7 +132,7 @@ AC_DEFUN([WX_CPP_NEW_HEADERS],
     AC_LANG_SAVE
     AC_LANG_CPLUSPLUS
 
-    AC_CHECK_HEADERS(iostream)
+    AC_CHECK_HEADERS([iostream],,, [ ])
 
     if test "$ac_cv_header_iostream" = "yes" ; then
       ifelse([$1], , :, [$1])
@@ -284,7 +284,7 @@ AC_DEFUN([WX_CHECK_FUNCS],
 
     if eval test \$wx_cv_func_$wx_func = yes
     then
-      AC_DEFINE_UNQUOTED([HAVE_`echo $wx_func | tr 'a-z' 'A-Z'`])
+      AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$wx_func])])
       $2
     else
       :
@@ -350,41 +350,50 @@ AC_DEFUN([WX_ARG_CACHE_FLUSH],
           mv ${wx_arg_cache_file}.tmp ${wx_arg_cache_file}
         ])
 
+dnl return the name of the variable to store the value of the given
+dnl WX_ARG_WITH/ENABLE option
+AC_DEFUN([WX_ARG_CACHE_NAME],)
+
 dnl this macro checks for a three-valued command line --with argument:
 dnl   possible arguments are 'yes', 'no', 'sys', or 'builtin'
 dnl usage: WX_ARG_SYS_WITH(option, helpmessage, variable-name)
+dnl
+dnl the default value (used if the option is not specified at all) is the value
+dnl of wxUSE_ALL_FEATURES (which is "yes" by default but can be changed by
+dnl giving configure --disable-all-features option)
 AC_DEFUN([WX_ARG_SYS_WITH],
         [
           AC_MSG_CHECKING([for --with-$1])
-          no_cache=0
           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then
-                          ac_cv_use_$1='$3=yes'
+                          AS_TR_SH(wx_cv_use_$1)='$3=yes'
                         elif test "$withval" = no; then
-                          ac_cv_use_$1='$3=no'
+                          AS_TR_SH(wx_cv_use_$1)='$3=no'
                         elif test "$withval" = sys; then
-                          ac_cv_use_$1='$3=sys'
+                          AS_TR_SH(wx_cv_use_$1)='$3=sys'
                         elif test "$withval" = builtin; then
-                          ac_cv_use_$1='$3=builtin'
+                          AS_TR_SH(wx_cv_use_$1)='$3=builtin'
                         else
                           AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
                         fi
+                        cache=yes
                       ],
                       [
-                        LINE=`grep "$3" ${wx_arg_cache_file}`
+                        LINE=`grep "^$3=" ${wx_arg_cache_file}`
                         if test "x$LINE" != x ; then
-                          eval "DEFAULT_$LINE"
+                            eval "DEFAULT_$LINE"
+                            cache=yes
                         else
-                          no_cache=1
+                            cache=no
                         fi
 
-                        ac_cv_use_$1='$3='$DEFAULT_$3
+                        AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$wxUSE_ALL_FEATURES}"
                       ])
 
-          eval "$ac_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
+          eval "$AS_TR_SH(wx_cv_use_$1)"
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
           if test "$$3" = yes; then
@@ -404,82 +413,126 @@ dnl this macro checks for a command line argument and caches the result
 dnl usage: WX_ARG_WITH(option, helpmessage, variable-name, [withstring])
 AC_DEFUN([WX_ARG_WITH],
         [
-         withstring=$4
+          withstring=$4
+          defaultval=$wxUSE_ALL_FEATURES
+          if test -z "$defaultval"; then
+              if test x"$withstring" = xwithout; then
+                  defaultval=yes
+              else
+                  defaultval=no
+              fi
+          fi
           AC_MSG_CHECKING([for --${withstring:-with}-$1])
-          no_cache=0
           AC_ARG_WITH($1, [$2],
                       [
                         if test "$withval" = yes; then
-                          ac_cv_use_$1='$3=yes'
+                          AS_TR_SH(wx_cv_use_$1)='$3=yes'
                         else
-                          ac_cv_use_$1='$3=no'
+                          AS_TR_SH(wx_cv_use_$1)='$3=no'
                         fi
+                        cache=yes
                       ],
                       [
-                        LINE=`grep "$3" ${wx_arg_cache_file}`
+                        LINE=`grep "^$3=" ${wx_arg_cache_file}`
                         if test "x$LINE" != x ; then
-                          eval "DEFAULT_$LINE"
+                            eval "DEFAULT_$LINE"
+                            cache=yes
                         else
-                          no_cache=1
+                            cache=no
                         fi
 
-                        ac_cv_use_$1='$3='$DEFAULT_$3
+                        AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$defaultval}"
                       ])
 
-          eval "$ac_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
+          eval "$AS_TR_SH(wx_cv_use_$1)"
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
-          if test "$$3" = yes; then
-            AC_MSG_RESULT(yes)
+          if test x"$withstring" = xwithout; then
+            if test $$3 = yes; then
+              result=no
+            else
+              result=yes
+            fi
           else
-            AC_MSG_RESULT(no)
+            result=$$3
           fi
+
+          AC_MSG_RESULT($result)
         ])
 
+dnl same as WX_ARG_WITH but makes it clear that the option is enabled by default
+AC_DEFUN([WX_ARG_WITHOUT], [WX_ARG_WITH($1, [$2], $3, without)])
+
 dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH
-dnl usage: WX_ARG_ENABLE(option, helpmessage, variable-name, enablestring)
+dnl usage: WX_ARG_ENABLE(option, helpmessage, var, [enablestring], [default])
+dnl
+dnl enablestring can be omitted or a literal string "disable" and allows to
+dnl show "checking for --disable-foo" message when running configure instead of
+dnl the default "checking for --enable-foo" one whih is useful for the options
+dnl enabled by default
 dnl
-dnl enablestring is a hack and allows to show "checking for --disable-foo"
-dnl message when running configure instead of the default "checking for
-dnl --enable-foo" one whih is useful for the options enabled by default
+dnl the "default" argument can be omitted or contain the default value to use
+dnl for the option if it's unspecified
 AC_DEFUN([WX_ARG_ENABLE],
         [
-         enablestring=$4
+          enablestring=$4
+          defaultval=$5
+          if test -z "$defaultval"; then
+              if test x"$enablestring" = xdisable; then
+                  defaultval=yes
+              else
+                  defaultval=no
+              fi
+          fi
+
           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
-          no_cache=0
           AC_ARG_ENABLE($1, [$2],
                         [
                           if test "$enableval" = yes; then
-                            ac_cv_use_$1='$3=yes'
+                            AS_TR_SH(wx_cv_use_$1)='$3=yes'
                           else
-                            ac_cv_use_$1='$3=no'
+                            AS_TR_SH(wx_cv_use_$1)='$3=no'
                           fi
+                          cache=yes
                         ],
                         [
-                          LINE=`grep "$3" ${wx_arg_cache_file}`
+                          LINE=`grep "^$3=" ${wx_arg_cache_file}`
                           if test "x$LINE" != x ; then
-                            eval "DEFAULT_$LINE"
+                              eval "DEFAULT_$LINE"
+                              cache=yes
                           else
-                            no_cache=1
+                              cache=no
                           fi
 
-                          ac_cv_use_$1='$3='$DEFAULT_$3
+                          AS_TR_SH(wx_cv_use_$1)='$3=${'DEFAULT_$3":-$defaultval}"
                         ])
 
-          eval "$ac_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
+          eval "$AS_TR_SH(wx_cv_use_$1)"
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
-          if test "$$3" = yes; then
-            AC_MSG_RESULT(yes)
+          if test x"$enablestring" = xdisable; then
+            if test $$3 = yes; then
+              result=no
+            else
+              result=yes
+            fi
           else
-            AC_MSG_RESULT(no)
+            result=$$3
           fi
+
+          AC_MSG_RESULT($result)
         ])
 
+dnl the same as WX_ARG_ENABLE but makes it more clear that the option is
+dnl enabled by default
+AC_DEFUN([WX_ARG_DISABLE], [WX_ARG_ENABLE($1, [$2], $3, disable)])
+
+dnl same as WX_ARG_ENABLE but defaults to wxUSE_ALL_FEATURES instead of "yes"
+AC_DEFUN([WX_ARG_FEATURE], [WX_ARG_ENABLE($1, [$2], $3,, $wxUSE_ALL_FEATURES)])
 
 dnl Like WX_ARG_ENABLE but accepts a parameter.
 dnl
@@ -488,35 +541,37 @@ dnl   WX_ARG_ENABLE_PARAM(option, helpmessage, variable-name, enablestring)
 dnl
 dnl Example:
 dnl   WX_ARG_ENABLE_PARAM(foo, [[  --enable-foo[=bar] use foo]], wxUSE_FOO)
-dnl 
+dnl
 dnl  --enable-foo       wxUSE_FOO=yes
 dnl  --disable-foo      wxUSE_FOO=no
 dnl  --enable-foo=bar   wxUSE_FOO=bar
-dnl  <not given>        value from configarg.cache or wxUSE_FOO=no
-dnl 
+dnl  <not given>        value from configarg.cache or
+dnl                     wxUSE_FOO=$DEFAULT_wxUSE_FOO
+dnl
 AC_DEFUN([WX_ARG_ENABLE_PARAM],
         [
           enablestring=$4
           AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
-          no_cache=0
           AC_ARG_ENABLE($1, [$2],
                         [
                           wx_cv_use_$1="$3='$enableval'"
+                          cache=yes
                         ],
                         [
-                          LINE=`grep "$3" ${wx_arg_cache_file}`
+                          LINE=`grep "^$3=" ${wx_arg_cache_file}`
                           if test "x$LINE" != x ; then
                             eval "DEFAULT_$LINE"
-                            wx_cv_use_$1='$3='$DEFAULT_$3
+                            cache=yes
                           else
-                            no_cache=1
-                            wx_cv_use_$1="$3=no"
+                            cache=no
                           fi
+
+                          wx_cv_use_$1='$3='$DEFAULT_$3
                         ])
 
           eval "$wx_cv_use_$1"
-          if test "$no_cache" != 1; then
-            echo $wx_cv_use_$1 >> ${wx_arg_cache_file}.tmp
+          if test "x$cache" = xyes; then
+            echo "$3=$$3" >> ${wx_arg_cache_file}.tmp
           fi
 
           AC_MSG_RESULT([$$3])
@@ -535,81 +590,80 @@ dnl call WX_VERSIONED_SYMBOLS(versionfile)
 dnl ---------------------------------------------------------------------------
 AC_DEFUN([WX_VERSIONED_SYMBOLS],
 [
-  found_versioning=no
-
-  dnl FIXME - doesn't work, Solaris linker doesn't accept wildcards
-  dnl         in the script.
-  dnl dnl Check for known non-gcc cases:
-  dnl case "${host}" in
-  dnl   *-*-solaris2* )
-  dnl     if test "x$GCC" != "xyes" ; then
-  dnl         LDFLAGS_VERSIONING="-M $1"
-  dnl         found_versioning=yes
-  dnl     fi
-  dnl   ;;
-  dnl esac
-  
-  dnl Generic check for GCC or GCC-like behaviour (Intel C++, GCC):
-  if test $found_versioning = no ; then
-      AC_CACHE_CHECK([if the linker accepts --version-script], wx_cv_version_script,
-      [
-        echo "VER_1 { *; };" >conftest.sym
-        echo "int main() { return 0; }" >conftest.cpp
-  
-        if AC_TRY_COMMAND([
-                $CXX -o conftest.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
-                -Wl,--version-script,conftest.sym >/dev/null 2>conftest.stderr]) ; then
-          if test -s conftest.stderr ; then
-              wx_cv_version_script=no
-          else
-              wx_cv_version_script=yes
-          fi
-        else
-          wx_cv_version_script=no
-        fi
-
-        dnl There's a problem in some old linkers with --version-script that
-        dnl can cause linking to fail when you have objects with vtables in
-        dnl libs 3 deep.  This is known to happen in netbsd and openbsd with
-        dnl ld 2.11.2.
-        dnl 
-        dnl To test for this we need to make some shared libs and
-        dnl unfortunately we can't be sure of the right way to do that. If the
-        dnl first two compiles don't succeed then it looks like the test isn't
-        dnl working and the result is ignored, but if OTOH the first two
-        dnl succeed but the third does not then the bug has been detected and
-        dnl the --version-script flag is dropped.
-        if test $wx_cv_version_script = yes
-        then
-          echo "struct B { virtual ~B() { } }; \
-                struct D : public B { }; \
-                void F() { D d; }" > conftest.cpp
-
-          if AC_TRY_COMMAND([
-                $CXX -shared -fPIC -o conftest1.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
-                -Wl,--version-script,conftest.sym >/dev/null 2>/dev/null]) &&
-             AC_TRY_COMMAND([
-                $CXX -shared -fPIC -o conftest2.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
-                -Wl,--version-script,conftest.sym conftest1.output >/dev/null 2>/dev/null])
-          then
-            if AC_TRY_COMMAND([
-                  $CXX -shared -fPIC -o conftest3.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
-                  -Wl,--version-script,conftest.sym conftest2.output conftest1.output >/dev/null 2>/dev/null])
-            then
-              wx_cv_version_script=yes
-            else
-              wx_cv_version_script=no
+    case "${host}" in
+        *-*-cygwin* | *-*-mingw* )
+            dnl although ld does support version script option on these
+            dnl platforms, it doesn't make much sense to use it under Win32
+            dnl and, moreover, this breaks linking because of a bug in handling
+            dnl paths in -Wl,--version-script,path option (if we ever do need
+            dnl to use it for cygwin/mingw32, keep in mind that replacing last
+            dnl comma with the equal sign works) so
+            dnl simply disable it
+            wx_cv_version_script=no
+            ;;
+
+        *)
+            AC_CACHE_CHECK([if the linker accepts --version-script], wx_cv_version_script,
+            [
+                echo "VER_1 { *; };" >conftest.sym
+                echo "int main() { return 0; }" >conftest.cpp
+
+                if AC_TRY_COMMAND([
+                        $CXX -o conftest.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                        -Wl,--version-script,conftest.sym >/dev/null 2>conftest.stderr]) ; then
+                  if test -s conftest.stderr ; then
+                      wx_cv_version_script=no
+                  else
+                      wx_cv_version_script=yes
+                  fi
+                else
+                  wx_cv_version_script=no
+                fi
+
+                dnl There's a problem in some old linkers with --version-script that
+                dnl can cause linking to fail when you have objects with vtables in
+                dnl libs 3 deep.  This is known to happen in netbsd and openbsd with
+                dnl ld 2.11.2.
+                dnl
+                dnl To test for this we need to make some shared libs and
+                dnl unfortunately we can't be sure of the right way to do that. If the
+                dnl first two compiles don't succeed then it looks like the test isn't
+                dnl working and the result is ignored, but if OTOH the first two
+                dnl succeed but the third does not then the bug has been detected and
+                dnl the --version-script flag is dropped.
+                if test $wx_cv_version_script = yes
+                then
+                  echo "struct B { virtual ~B() { } }; \
+                        struct D : public B { }; \
+                        void F() { D d; }" > conftest.cpp
+
+                  if AC_TRY_COMMAND([
+                        $CXX -shared -fPIC -o conftest1.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                        -Wl,--version-script,conftest.sym >/dev/null 2>/dev/null]) &&
+                     AC_TRY_COMMAND([
+                        $CXX -shared -fPIC -o conftest2.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                        -Wl,--version-script,conftest.sym conftest1.output >/dev/null 2>/dev/null])
+                  then
+                    if AC_TRY_COMMAND([
+                          $CXX -shared -fPIC -o conftest3.output $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.cpp
+                          -Wl,--version-script,conftest.sym conftest2.output conftest1.output >/dev/null 2>/dev/null])
+                    then
+                      wx_cv_version_script=yes
+                    else
+                      wx_cv_version_script=no
+                    fi
+                  fi
+                fi
+
+                rm -f conftest.output conftest.stderr conftest.sym conftest.cpp
+                rm -f conftest1.output conftest2.output conftest3.output
+            ])
+
+            if test $wx_cv_version_script = yes ; then
+                LDFLAGS_VERSIONING="-Wl,--version-script,$1"
             fi
-          fi
-        fi
-
-        rm -f conftest.output conftest.stderr conftest.sym conftest.cpp
-        rm -f conftest1.output conftest2.output conftest3.output
-      ])
-      if test $wx_cv_version_script = yes ; then
-        LDFLAGS_VERSIONING="-Wl,--version-script,$1"
-      fi
-  fi
+            ;;
+    esac
 ])