diff options
Diffstat (limited to 'win/tcl.m4')
| -rw-r--r-- | win/tcl.m4 | 114 |
1 files changed, 112 insertions, 2 deletions
@@ -441,6 +441,17 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [ # set various compiler flags depending on whether we are using gcc or cl + AC_CACHE_CHECK(for Cygwin version of gcc, + ac_cv_cygwin, + AC_TRY_COMPILE([ + #ifdef __CYGWIN__ + #error cygwin + #endif + ], [], + ac_cv_cygwin=no, + ac_cv_cygwin=yes) + ) + AC_MSG_CHECKING([compiler flags]) if test "${GCC}" = "yes" ; then SHLIB_LD="" @@ -476,8 +487,8 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [ AR="i686-w64-mingw32-ar" RANLIB="i686-w64-mingw32-ranlib" RC="i686-w64-mingw32-windres" - ;; - esac + ;; + esac fi if test "${SHARED_BUILD}" = "0" ; then @@ -784,6 +795,105 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [ fi fi + if test "${GCC}" = "yes" ; then + AC_CACHE_CHECK(for SEH support in compiler, + tcl_cv_seh, + AC_TRY_RUN([ + #define WIN32_LEAN_AND_MEAN + #include <windows.h> + #undef WIN32_LEAN_AND_MEAN + + int main(int argc, char** argv) { + int a, b = 0; + __try { + a = 666 / b; + } + __except (EXCEPTION_EXECUTE_HANDLER) { + return 0; + } + return 1; + } + ], + tcl_cv_seh=yes, + tcl_cv_seh=no, + tcl_cv_seh=no) + ) + if test "$tcl_cv_seh" = "no" ; then + AC_DEFINE(HAVE_NO_SEH, 1, + [Defined when mingw does not support SEH]) + fi + + # + # Check to see if the excpt.h include file provided contains the + # definition for EXCEPTION_DISPOSITION; if not, which is the case + # with Cygwin's version as of 2002-04-10, define it to be int, + # sufficient for getting the current code to work. + # + AC_CACHE_CHECK(for EXCEPTION_DISPOSITION support in include files, + tcl_cv_eh_disposition, + AC_TRY_COMPILE([ + #define WIN32_LEAN_AND_MEAN + #include <windows.h> + #undef WIN32_LEAN_AND_MEAN + ], + [ + EXCEPTION_DISPOSITION x; + ], + tcl_cv_eh_disposition=yes, + tcl_cv_eh_disposition=no) + ) + if test "$tcl_cv_eh_disposition" = "no" ; then + AC_DEFINE(EXCEPTION_DISPOSITION, int, + [Defined when cygwin/mingw does not support EXCEPTION DISPOSITION]) + fi + + + # Check to see if winnt.h defines CHAR, SHORT, and LONG + # even if VOID has already been #defined. The win32api + # used by mingw and cygwin is known to do this. + + AC_CACHE_CHECK(for winnt.h that ignores VOID define, + tcl_cv_winnt_ignore_void, + AC_TRY_COMPILE([ + #define VOID void + #define WIN32_LEAN_AND_MEAN + #include <windows.h> + #undef WIN32_LEAN_AND_MEAN + ], + [ + CHAR c; + SHORT s; + LONG l; + ], + tcl_cv_winnt_ignore_void=yes, + tcl_cv_winnt_ignore_void=no) + ) + if test "$tcl_cv_winnt_ignore_void" = "yes" ; then + AC_DEFINE(HAVE_WINNT_IGNORE_VOID, 1, + [Defined when cygwin/mingw ignores VOID define in winnt.h]) + fi + + # See if the compiler supports casting to a union type. + # This is used to stop gcc from printing a compiler + # warning when initializing a union member. + + AC_CACHE_CHECK(for cast to union support, + tcl_cv_cast_to_union, + AC_TRY_COMPILE([], + [ + union foo { int i; double d; }; + union foo f = (union foo) (int) 0; + ], + tcl_cv_cast_to_union=yes, + tcl_cv_cast_to_union=no) + ) + if test "$tcl_cv_cast_to_union" = "yes"; then + AC_DEFINE(HAVE_CAST_TO_UNION, 1, + [Defined when compiler supports casting to union type.]) + fi + fi + + # DL_LIBS is empty, but then we match the Unix version AC_SUBST(DL_LIBS) AC_SUBST(CFLAGS_DEBUG) |