Ronald Oussoren added the comment:
jyasskin: could you test apple_gcc_flags.diff? That's a version of your
patch where configure tests if GCC supports -Wno-long-double and -no-
cpp-precomp.
NOTE: the patch doesn't update configure, you'll have to run autoconf
after applying it.
NOTE2: the patch is relative to python's trunk, but should apply to
2.5.x as well.
----------
resolution: -> accepted
_____________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue1779871>
_____________________________________
Index: configure.in
===================================================================
--- configure.in (revision 57620)
+++ configure.in (working copy)
@@ -818,7 +818,45 @@
;;
# is there any other compiler on Darwin besides gcc?
Darwin*)
- BASECFLAGS="$BASECFLAGS -Wno-long-double -no-cpp-precomp
-mno-fused-madd"
+ BASECFLAGS="$BASECFLAGS -no-cpp-precomp -mno-fused-madd"
+
+ # Earlier versions of Xcode/DeveloperTools shipped with GCC 3.x
+ # which warned about using "long double". That warning is
+ # surpressed using -Wno-long-double, but that flag is not
+ # available in stock GCC
+ AC_MSG_CHECKING(whether $CC accepts -Wno-long-double)
+ ac_save_cc="${CC}"
+ CC="${CC} -Wno-long-double"
+ AC_TRY_RUN([int main(void) { return 0; }],
+ ac_cv_no_long_double_ok=yes,
+ ac_cv_no_long_double_ok=no,
+ ac_cv_no_long_double_ok=no)
+ CC="$ac_save_cc"
+ AC_MSG_RESULT($ac_cv_no_long_double_ok)
+ if test $ac_cv_no_long_double_ok = yes; then
+ BASECFLAGS="$BASECFLAGS -Wno-long-double"
+ fi
+
+ # Even earlier versions of Apple's GCC (appearently before
+ # GCC 3.1) sported a broken implementation of precompiled headers,
+ # -no-cpp-precomp disables that functionality, but isn't supported
+ # by stock GCC.
+ # XXX: need to check which version of OSX/DeveloperTools ships
+ # with this broken version of GCC, if that's old enough we can
+ # drop this check.
+ AC_MSG_CHECKING(whether $CC accepts -no-cpp-precomp)
+ ac_save_cc="${CC}"
+ CC="${CC} -no-cpp-precomp"
+ AC_TRY_RUN([int main(void) { return 0; }],
+ ac_cv_no_precomp_ok=yes,
+ ac_cv_no_precomp_ok=no,
+ ac_cv_no_precomp_ok=no)
+ CC="$ac_save_cc"
+ AC_MSG_RESULT($ac_cv_no_precomp_ok)
+ if test $ac_cv_no_precomp_ok = yes; then
+ BASECFLAGS="$BASECFLAGS -no-cpp-precomp"
+ fi
+
if test "${enable_universalsdk}"; then
BASECFLAGS="-arch ppc -arch i386 -isysroot ${UNIVERSALSDK}
${BASECFLAGS}"
fi
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