From 423dce47c5f0cb8476f4b7bb6ebdd28f8d3684bf Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Tue, 5 Sep 2017 20:16:41 +0100
Subject: [PATCH] toolchain.eclass: allow CTARGET to contain '.'

On CTARGET="hppa2.0-unknown-linux-gnu" the following code
    local VAR="CFLAGS_"${CTARGET//-/_}
    CXXFLAGS=${!VAR}
produces incorrect substitution:
    CFLAGS_hppa2.0_unknown_linux_gnu
which caused 'crossdev hppa2.0-unknown-linux-gnu' to fail.

The change adds '.' mangling as well.

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 eclass/toolchain.eclass | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index dad4ae3d19722..096cc3018af5a 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -1478,7 +1478,8 @@ gcc_do_filter_flags() {
 		FFLAGS=${CFLAGS}
 		FCFLAGS=${CFLAGS}
 
-		local VAR="CFLAGS_"${CTARGET//-/_}
+		# "hppa2.0-unknown-linux-gnu" -> hppa2_0_unknown_linux_gnu
+		local VAR="CFLAGS_"${CTARGET//[-.]/_}
 		CXXFLAGS=${!VAR}
 	fi