diff options
Diffstat (limited to 'tool/m4/ruby_check_setjmp.m4')
| -rw-r--r-- | tool/m4/ruby_check_setjmp.m4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tool/m4/ruby_check_setjmp.m4 b/tool/m4/ruby_check_setjmp.m4 new file mode 100644 index 0000000000..7f3b7e3fdf --- /dev/null +++ b/tool/m4/ruby_check_setjmp.m4 @@ -0,0 +1,16 @@ +# used for AC_ARG_WITH(setjmp-type) +AC_DEFUN([RUBY_CHECK_SETJMP], [ +AC_CACHE_CHECK([for ]$1[ as a macro or function], ac_cv_func_$1, + [AC_TRY_COMPILE([ +@%:@include <setjmp.h> +]AC_INCLUDES_DEFAULT([$3])[ +@%:@define JMPARGS_1 env +@%:@define JMPARGS_2 env,1 +@%:@define JMPARGS JMPARGS_]m4_ifval($2,2,1)[ +], + m4_ifval($2,$2,jmp_buf)[ env; $1(JMPARGS);], + ac_cv_func_$1=yes, + ac_cv_func_$1=no)] +) +AS_IF([test "$ac_cv_func_]$1[" = yes], [AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)]) +])dnl |