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17 lines
534 B
Text
17 lines
534 B
Text
dnl -*- Autoconf -*-
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dnl used for AC_ARG_WITH(setjmp-type)
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AC_DEFUN([RUBY_CHECK_SETJMP], [
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AC_CACHE_CHECK([for ]$1[ as a macro or function], ac_cv_func_$1,
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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@%:@include <setjmp.h>
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]AC_INCLUDES_DEFAULT([$3])[
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@%:@define JMPARGS_1 env
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@%:@define JMPARGS_2 env,1
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@%:@define JMPARGS JMPARGS_]m4_ifval($2,2,1)[
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]],
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[m4_ifval($2,$2,jmp_buf)[ env; $1(JMPARGS);]])],
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ac_cv_func_$1=yes,
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ac_cv_func_$1=no)]
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)
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AS_IF([test "$ac_cv_func_]$1[" = yes], [AC_DEFINE([HAVE_]AS_TR_CPP($1), 1)])
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])dnl
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