diff options
Diffstat (limited to 'unix/tcl.m4')
| -rw-r--r-- | unix/tcl.m4 | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/unix/tcl.m4 b/unix/tcl.m4 index f6e002e..222c375 100644 --- a/unix/tcl.m4 +++ b/unix/tcl.m4 @@ -738,6 +738,7 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [ if test "$tcl_ok" = "no"; then CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)' LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)' + AC_DEFINE(NDEBUG, 1, [Is no debugging enabled?]) AC_MSG_RESULT([no]) AC_DEFINE(TCL_CFG_OPTIMIZED, 1, [Is this an optimized build?]) else @@ -749,8 +750,6 @@ AC_DEFUN([SC_ENABLE_SYMBOLS], [ fi AC_SUBST(CFLAGS_DEFAULT) AC_SUBST(LDFLAGS_DEFAULT) - ### FIXME: Surely TCL_CFG_DEBUG should be set to whether we're debugging? - AC_DEFINE(TCL_CFG_DEBUG, 1, [Is debugging enabled?]) if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then AC_DEFINE(TCL_MEM_DEBUG, 1, [Is memory debugging enabled?]) @@ -1220,7 +1219,7 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [ CC_SEARCH_FLAGS="" LD_SEARCH_FLAGS="" ;; - CYGWIN_*) + CYGWIN_*|MINGW32*) SHLIB_CFLAGS="" SHLIB_LD='${CC} -shared' SHLIB_SUFFIX=".dll" @@ -1231,6 +1230,19 @@ AC_DEFUN([SC_CONFIG_CFLAGS], [ TCL_NEEDS_EXP_FILE=1 TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.dll.a' TCL_SHLIB_LD_EXTRAS='-Wl,--out-implib,$[@].a' + 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) + ) + if test "$ac_cv_cygwin" = "no"; then + AC_MSG_ERROR([${CC} is not a cygwin compiler.]) + fi ;; dgux*) SHLIB_CFLAGS="-K PIC" @@ -2058,7 +2070,7 @@ dnl # preprocessing tests use only CPPFLAGS. case $system in AIX-*) ;; BSD/OS*) ;; - CYGWIN_*) ;; + CYGWIN_*|MINGW32_*) ;; IRIX*) ;; NetBSD-*|FreeBSD-*|OpenBSD-*) ;; Darwin-*) ;; @@ -2115,6 +2127,25 @@ dnl # preprocessing tests use only CPPFLAGS. TCL_LIBS="${DL_LIBS} ${LIBS} ${MATH_LIBS}"]) AC_SUBST(TCL_LIBS) + # See if the compiler supports casting to a union type. + # This is used to stop gcc from printing a compiler + # warning when initializing a union member. + + AC_CACHE_CHECK(for cast to union support, + tcl_cv_cast_to_union, + AC_TRY_COMPILE([], + [ + union foo { int i; double d; }; + union foo f = (union foo) (int) 0; + ], + tcl_cv_cast_to_union=yes, + tcl_cv_cast_to_union=no) + ) + if test "$tcl_cv_cast_to_union" = "yes"; then + AC_DEFINE(HAVE_CAST_TO_UNION, 1, + [Defined when compiler supports casting to union type.]) + fi + # FIXME: This subst was left in only because the TCL_DL_LIBS # entry in tclConfig.sh uses it. It is not clear why someone # would use TCL_DL_LIBS instead of TCL_LIBS. |