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- Issue #14324: Fix configure tests for cross builds.

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when using gcc, use a compilation test for the cross build check for long long format.
This commit is contained in:
Matthias Klose 2012-03-15 19:31:06 +01:00
parent 93a0ef16c9
commit 3b739b149b
3 changed files with 49 additions and 2 deletions
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18
configure.ac
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@ -4128,7 +4128,23 @@ then
]]])],
[ac_cv_have_long_long_format=yes],
[ac_cv_have_long_long_format=no],
[ac_cv_have_long_long_format=no])
[ac_cv_have_long_long_format="cross -- assuming no"
if test x$GCC = xyes; then
save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -Werror -Wformat"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <stdio.h>
#include <stddef.h>
]], [[
char *buffer;
sprintf(buffer, "%lld", (long long)123);
sprintf(buffer, "%lld", (long long)-123);
sprintf(buffer, "%llu", (unsigned long long)123);
]])],
ac_cv_have_long_long_format=yes
)
CFLAGS=$save_CFLAGS
fi])
)
AC_MSG_RESULT($ac_cv_have_long_long_format)
fi