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dnl $Id$
dnl
AC_DEFUN([AC_BROKEN_SNPRINTF], [
AC_CACHE_CHECK(for working snprintf,ac_cv_func_snprintf_working,
ac_cv_func_snprintf_working=yes
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdio.h>
#include <string.h>
int main(int argc, char **argv)
{
char foo[[3]];
snprintf(foo, 2, "12");
return strcmp(foo, "1") || snprintf(NULL, 0, "%d", 12) != 2;
}]])],[:],[ac_cv_func_snprintf_working=no],[:]))
if test "$ac_cv_func_snprintf_working" = yes; then
AC_DEFINE_UNQUOTED(HAVE_SNPRINTF, 1, [define if you have a working snprintf])
fi
if test "$ac_cv_func_snprintf_working" = yes; then
AC_NEED_PROTO([#include <stdio.h>],snprintf)
fi
])
AC_DEFUN([AC_BROKEN_VSNPRINTF],[
AC_CACHE_CHECK(for working vsnprintf,ac_cv_func_vsnprintf_working,
ac_cv_func_vsnprintf_working=yes
AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
int foo(int num, ...)
{
char bar[[3]];
va_list arg;
va_start(arg, num);
vsnprintf(bar, 2, "%s", arg);
va_end(arg);
return strcmp(bar, "1");
}
int bar(int num, int len, ...)
{
int r;
va_list arg;
va_start(arg, len);
r = vsnprintf(NULL, 0, "%s", arg);
va_end(arg);
return r != len;
}
int main(int argc, char **argv)
{
return foo(0, "12") || bar(0, 2, "12");
}]])],[:],[ac_cv_func_vsnprintf_working=no],[:]))
if test "$ac_cv_func_vsnprintf_working" = yes; then
AC_DEFINE_UNQUOTED(HAVE_VSNPRINTF, 1, [define if you have a working vsnprintf])
fi
if test "$ac_cv_func_vsnprintf_working" = yes; then
AC_NEED_PROTO([#include <stdio.h>],vsnprintf)
fi
])
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