From 95b3f8b773f19dbd125cfd684d1617835d6c6cb0 Mon Sep 17 00:00:00 2001
From: Diego Elio Pettenò <flameeyes@flameeyes.eu>
Date: Sat, 26 Jan 2013 06:48:14 -0800
Subject: Update the --as-needed specs hacking so that it works with hardened
 toolchain.

Previously, this caused the --as-needed hack to be applied over and
over and over again every time a GCC was to be rebuilt for whatever
reason. Now it'll only be applied once.
---
 tinderbox-restart.sh   |  2 +-
 update-gcc-asneeded.sh | 20 +++++++++++++-------
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/tinderbox-restart.sh b/tinderbox-restart.sh
index b2c89ad..2d555a9 100755
--- a/tinderbox-restart.sh
+++ b/tinderbox-restart.sh
@@ -49,7 +49,7 @@ reset_emergelog
 emerge -Nu1 sys-apps/portage
 
 emerge -Nu1 sys-devel/gcc
-if fgrep -q '>>> emerge' /var/log/emerge.log && gcc-config -l | tail -n 1 | grep -v asneeded; then
+if fgrep -q '>>> emerge' /var/log/emerge.log; then
     ${tboxdir}/update-gcc-asneeded.sh
     exit 0
 fi
diff --git a/update-gcc-asneeded.sh b/update-gcc-asneeded.sh
index 38f5717..31c348c 100755
--- a/update-gcc-asneeded.sh
+++ b/update-gcc-asneeded.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# Copyright © 2007-2010 Diego Elio Pettenò <flameeyes@gentoo.org>
+# Copyright © 2007-2013 Diego Elio Pettenò <flameeyes@gentoo.org>
 #
 # Permission to use, copy, modify, and distribute this software for any
 # purpose with or without fee is hereby granted, provided that the above
@@ -15,9 +15,15 @@
 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 # SOFTWARE.
 
-export SPECSFILE=$(dirname "$(gcc -print-libgcc-file-name)")/asneeded.specs
-export CURRPROFILE=/etc/env.d/gcc/$(gcc-config -c)
-gcc -dumpspecs | sed -e '/link:/,+1 s:--eh-frame-hdr:\0 --as-needed:' > "$SPECSFILE"
-sed "${CURRPROFILE}" -e '1i\GCC_SPECS='$SPECSFILE > "${CURRPROFILE}-asneeded"
-gcc-config "$(basename "${CURRPROFILE}")-asneeded"
-source /etc/profile
+SPECSFILE=$(dirname "$(gcc -print-libgcc-file-name)")/asneeded.specs
+CURRPROFILE=$(gcc-config -c)
+PROFILEFILE=/etc/env.d/gcc/$(gcc-config -c)
+
+# only proceed with the changes if we're not already on an asneeded
+# profile.
+if [ ${CURRPROFILE/asneeded} = ${CURRPROFILE} ]; then
+    gcc -dumpspecs | sed -e '/link:/,+1 s:--eh-frame-hdr:\0 --as-needed:' > "$SPECSFILE"
+    sed "${PROFILEFILE}" -e '1i\GCC_SPECS='$SPECSFILE > "${PROFILEFILE}-asneeded"
+    gcc-config "${CURRPROFILE}-asneeded"
+    source /etc/profile
+fi
-- 
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