From 6c6aecba19b3e7947100623532a41b6f16734ace Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Rosen?= <jeremy.rosen@smile.fr>
Date: Mon, 22 Aug 2016 16:09:25 +0200
Subject: [PATCH] locale: fix hard-coded reference to gcc -E

When new version of compilers are published, they may not be compatible with
older versions of software. This is particularly common when software is built
with -Werror.

Autotools provides a way for a user to specify the name of his compiler using a
set of variables ($CC $CXX $CPP etc.). Those variables are used correctly when
compiling glibc but the script used to generate transliterations in the locale/
subdirectory directly calls the gcc binary to get the output of the
preprocessor instead of using the $CPP variable provided by the build
environment.

This patch replaces the hard-coded reference to the gcc binary with the proper
environment variable, thus allowing a user to override it.

Upstream-Status: Submitted [https://sourceware.org/ml/libc-alpha/2016-08/msg00746.html]
---
 locale/gen-translit.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/locale/gen-translit.pl b/locale/gen-translit.pl
index 30d3f2f195..e97653017c 100644
--- a/locale/gen-translit.pl
+++ b/locale/gen-translit.pl
@@ -1,5 +1,5 @@
 #!/usr/bin/perl -w
-open F, "cat C-translit.h.in | gcc -E - |" || die "Cannot preprocess input file";
+open F, 'cat C-translit.h.in | ${CPP:-gcc -E} - |' || die "Cannot preprocess input file";
 
 
 sub cstrlen {
