- Issue #14324: Fix configure tests for cross builds.
when using gcc, use a compilation test for the cross build check for long long format.
diff --git a/Misc/NEWS b/Misc/NEWS
index d41a2b4..9bc74d1 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -111,6 +111,8 @@
- Issue #14321: Do not run pgen during the build if files are up to date.
+- Issue #14324: Fix configure tests for cross builds.
+
Extension Modules
-----------------
diff --git a/configure b/configure
index a71e128..8f5845d 100755
--- a/configure
+++ b/configure
@@ -13805,7 +13805,36 @@
$as_echo_n "(cached) " >&6
else
if test "$cross_compiling" = yes; then :
- 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="$CFLAGS -Werror -Wformat"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+ #include <stdio.h>
+ #include <stddef.h>
+
+int
+main ()
+{
+
+ char *buffer;
+ sprintf(buffer, "%lld", (long long)123);
+ sprintf(buffer, "%lld", (long long)-123);
+ sprintf(buffer, "%llu", (unsigned long long)123);
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_have_long_long_format=yes
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS=$save_CFLAGS
+ fi
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
diff --git a/configure.ac b/configure.ac
index a38a5cc..2bcbedf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4128,7 +4128,23 @@
]]])],
[ac_cv_have_long_long_format=yes],
[ac_cv_have_long_long_format=no],
- [ac_cv_have_long_long_format=no])
+ [ac_cv_have_long_long_format="cross -- assuming no"
+ if test x$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