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ruby_check_va_copy.m4: for cross compiling

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* tool/m4/ruby_check_va_copy.m4 (RUBY_CHECK_VA_COPY): use
  AC_TRY_LINK instead of AC_TRY_RUN for cross compiling.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62432 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-02-16 14:35:06 +00:00
parent 62916542b2
commit 2b1ba32514
1 changed files with 12 additions and 16 deletions
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28
tool/m4/ruby_check_va_copy.m4
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@ -1,11 +1,11 @@
# -*- Autoconf -*-
AC_DEFUN([RUBY_CHECK_VA_COPY], [
if test "x$rb_cv_va_copy" = x; then
AC_TRY_RUN(
[#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#define CONFTEST_VA_COPY(dst, src) $2
AS_IF([test "x$rb_cv_va_copy" = x], [dnl
AC_TRY_LINK(
[@%:@include <stdlib.h>
@%:@include <stdarg.h>
@%:@include <string.h>
@%:@define CONFTEST_VA_COPY(dst, src) $2
void
conftest(int n, ...)
{
@ -19,16 +19,12 @@ conftest(int n, ...)
for (i = 0; i < n; i++) if ((int)va_arg(ap, int) != n - i - 1) abort();
va_end(ap);
va_end(ap2);
}
int
main()
{
conftest(10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
exit(0);
}],
rb_cv_va_copy="$1",
rb_cv_va_copy="",
rb_cv_va_copy="")dnl
fi
[
conftest(10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0);
],
[rb_cv_va_copy="$1"],
[rb_cv_va_copy=""])dnl
])dnl
])dnl
dnl