])
dnl ---------------------------------------------------------------------------
-dnl WX_CHECK_DECLS(TARGET...,
-dnl HEADER,
+dnl WX_CHECK_FUNCS(FUNCTIONS...,
dnl [ACTION-IF-FOUND],
-dnl [ACTION-IF-NOT-FOUND])
+dnl [ACTION-IF-NOT-FOUND],
+dnl [EXTRA-DEFINES-AND-INCLUDES],
+dnl [EXTRA-TEST-CODE])
dnl
-dnl Checks that the functions, macros or variables listed in TARGET are
-dnl declared when HEADER is included.
+dnl Checks that the functions listed in FUNCTIONS exist in the headers and the
+dnl libs. For each function, if it is found then defines 'HAVE_FUNCTION' and
+dnl executes ACTION-IF-FOUND, otherwise executes ACTION-IF-NOT-FOUND.
+dnl
+dnl The code from EXTRA-DEFINES-AND-INCLUDES is inserted into the test before
+dnl the default headers are included, and EXTRA-TEST-CODE is inserted into
+dnl the main() function after the default test for existence.
+dnl
+dnl Examples:
+dnl # the simple case
+dnl WX_CHECK_FUNCS(stat)
+dnl # use break to finish the loop early
+dnl WX_CHECK_FUNCS(mkstemp mktemp, break)
+dnl # extra defines
+dnl WX_CHECK_FUNCS(strtok_r, [], [], [#define _RREENTRANT])
+dnl # extra includes
+dnl WX_CHECK_FUNCS(swprintf, [], [], [#include <wchar.h>])
+dnl # checking the signature with extra test code
+dnl WX_CHECK_FUNCS(gettimeofday, [], [], [#include <sys/time.h>]
+dnl [struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz)])
dnl ---------------------------------------------------------------------------
-AC_DEFUN([WX_CHECK_DECLS],
+AC_DEFUN([WX_CHECK_FUNCS],
[
- for target in $1
+ for wx_func in $1
do
- AC_CACHE_CHECK([for $target in $2],
- [wx_cv_decl_$target],
- [
- AC_TRY_COMPILE([#include <$2>],
- [
- #ifndef $target
- &$target;
- #endif
- ],
- [eval wx_cv_decl_$target=yes],
- [eval wx_cv_decl_$target=no])
- ])
-
- if eval test \$wx_cv_decl_$target = yes
+ AC_CACHE_CHECK(
+ [for $wx_func],
+ [wx_cv_func_$wx_func],
+ [
+ AC_LINK_IFELSE(
+ [
+ AC_LANG_PROGRAM(
+ [
+ $4
+ AC_INCLUDES_DEFAULT
+ ],
+ [
+ #ifndef $wx_func
+ &$wx_func;
+ #endif
+ $5
+ ])
+ ],
+ [eval wx_cv_func_$wx_func=yes],
+ [eval wx_cv_func_$wx_func=no])
+ ])
+
+ if eval test \$wx_cv_func_$wx_func = yes
then
- AC_DEFINE_UNQUOTED([HAVE_`echo $target | tr 'a-z' 'A-Z'`])
- $3
+ AC_DEFINE_UNQUOTED([HAVE_`echo $wx_func | tr 'a-z' 'A-Z'`])
+ $2
else
:
- $4
+ $3
fi
done
])
dnl usage: WX_ARG_WITH(option, helpmessage, variable-name, [withstring])
AC_DEFUN([WX_ARG_WITH],
[
- withstring=$4
+ withstring=$4
AC_MSG_CHECKING([for --${withstring:-with}-$1])
no_cache=0
AC_ARG_WITH($1, [$2],
dnl --enable-foo" one whih is useful for the options enabled by default
AC_DEFUN([WX_ARG_ENABLE],
[
- enablestring=$4
+ enablestring=$4
AC_MSG_CHECKING([for --${enablestring:-enable}-$1])
no_cache=0
AC_ARG_ENABLE($1, [$2],
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
AC_DEFUN([WX_ARG_ENABLE_PARAM],
[
enablestring=$4
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_VERSIONED_SYMBOLS],
[
- found_versioning=no
-
- dnl FIXME - doesn't work, Solaris linker doesn't accept wildcards
- dnl in the script.
- dnl dnl Check for known non-gcc cases:
- dnl case "${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
])
projects / wxWidgets.git / blobdiff