--- /dev/null
+https://bugs.python.org/issue25397
+
+improve the cross-compile tests to be more focused
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -1339,7 +1339,7 @@ if test "$GCC" = "yes"
+ then
+ AC_MSG_CHECKING(whether gcc supports ParseTuple __format__)
+ save_CFLAGS=$CFLAGS
+- CFLAGS="$CFLAGS -Werror -Wformat"
++ CFLAGS="$CFLAGS -Werror=format"
+ AC_COMPILE_IFELSE([
+ AC_LANG_PROGRAM([[void f(char*,...)__attribute((format(PyArg_ParseTuple, 1, 2)));]], [[]])
+ ],[
+@@ -4458,7 +4458,7 @@ then
+ [ac_cv_have_long_long_format="cross -- assuming no"
+ if test x$GCC = xyes; then
+ save_CFLAGS=$CFLAGS
+- CFLAGS="$CFLAGS -Werror -Wformat"
++ CFLAGS="$CFLAGS -Werror=format"
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #include <stdio.h>
+ #include <stddef.h>
# Fix for cross-compiling.
epatch "${FILESDIR}/python-2.7.5-nonfatal-compileall.patch"
epatch "${FILESDIR}/python-2.7.9-ncurses-pkg-config.patch"
+ epatch "${FILESDIR}/python-2.7.10-cross-compile-warn-test.patch"
sed -i -e "s:@@GENTOO_LIBDIR@@:$(get_libdir):g" \
Lib/distutils/command/install.py \