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ce06c24b0c
Update for autoconf 2.70 --- configure.ac | 232 +++++++++++++++++------------------ tool/m4/ruby_check_builtin_setjmp.m4 | 8 +- tool/m4/ruby_check_printf_prefix.m4 | 9 +- tool/m4/ruby_check_setjmp.m4 | 6 +- tool/m4/ruby_check_sysconf.m4 | 6 +- tool/m4/ruby_cppoutfile.m4 | 4 +- tool/m4/ruby_decl_attribute.m4 | 4 +- tool/m4/ruby_dtrace_available.m4 | 2 +- tool/m4/ruby_dtrace_postprocess.m4 | 2 +- tool/m4/ruby_mingw32.m4 | 4 +- tool/m4/ruby_stack_grow_direction.m4 | 4 +- tool/m4/ruby_try_cflags.m4 | 2 +- tool/m4/ruby_try_cxxflags.m4 | 2 +- tool/m4/ruby_try_ldflags.m4 | 2 +- 14 files changed, 143 insertions(+), 144 deletions(-) Revert AC_PROG_CC_C99 for -std=gnu99 option to gcc 4.8 --- configure.ac | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
27 lines
847 B
Text
27 lines
847 B
Text
# -*- Autoconf -*-
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AC_DEFUN([RUBY_CHECK_BUILTIN_SETJMP], [
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AS_IF([test x"${ac_cv_func___builtin_setjmp}" = xyes], [
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unset ac_cv_func___builtin_setjmp
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])
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AC_CACHE_CHECK(for __builtin_setjmp, ac_cv_func___builtin_setjmp,
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[
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ac_cv_func___builtin_setjmp=no
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for cast in "" "(void **)"; do
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RUBY_WERROR_FLAG(
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[AC_LINK_IFELSE([AC_LANG_PROGRAM([[@%:@include <setjmp.h>
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@%:@include <stdio.h>
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jmp_buf jb;
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@%:@ifdef NORETURN
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NORETURN(void t(void));
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@%:@endif
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void t(void) {__builtin_longjmp($cast jb, 1);}
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int jump(void) {(void)(__builtin_setjmp($cast jb) ? 1 : 0); return 0;}]],
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[[
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void (*volatile f)(void) = t;
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if (!jump()) printf("%d\n", f != 0);
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]])],
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[ac_cv_func___builtin_setjmp="yes with cast ($cast)"])
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])
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test "$ac_cv_func___builtin_setjmp" = no || break
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done])
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])dnl
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