blob: a65d3cefc734a0d53e383bb5ddde8b6a14817860 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
dnl This macro sets HAVE_POSIX_GETGROUPS if the
dnl getgroups() function accepts a zero first argument.
AC_DEFUN(RC_FUNC_GETGROUPS, [
AC_CACHE_CHECK(for POSIX getgroups, rc_cv_func_posix_getgroups, AC_TRY_RUN([
#include <sys/types.h>
#include <unistd.h>
int main(void) {
return getgroups(0, (void *)0) == -1;
}
], rc_cv_func_posix_getgroups=yes, rc_cv_func_posix_getgroups=no, rc_cv_func_posix_getgroups=yes))
case "$rc_cv_func_posix_getgroups" in
yes) AC_DEFINE(HAVE_POSIX_GETGROUPS) ;;
esac
])
dnl Check for va_copy() in <stdarg.h>. This is new in C 9x.
AC_DEFUN(RC_HAVE_VA_COPY, [
AC_CACHE_CHECK(for va_copy(), rc_cv_have_va_copy, AC_EGREP_CPP(yes, [
#include <stdarg.h>
#ifdef va_copy
yes
#endif
], rc_cv_have_va_copy=yes, rc_cv_have_va_copy=no))
case "$rc_cv_have_va_copy" in
yes) AC_DEFINE(HAVE_VA_COPY) ;;
esac
])
|