From 91eb66a629bbc9e3fe5a7afd10fb7b3d028588f2 Mon Sep 17 00:00:00 2001
From: Zhenqiang Chen <zhenqiang.chen@linaro.org>
Date: Tue, 22 Nov 2011 14:18:14 +0800
Subject: libc/newlib: add option to optimise for size

Add an option to build with -Os instead of the default -O.

Reviewed-by: Michael Hope
Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>

diff --git a/config/libc/newlib.in.2 b/config/libc/newlib.in.2
index 3708384..ef5d076 100644
--- a/config/libc/newlib.in.2
+++ b/config/libc/newlib.in.2
@@ -35,6 +35,15 @@ config LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS
 	  _write... If you plan to port newlib to a new
 	  platform/board, say Yes.
 
+config LIBC_NEWLIB_ENABLE_TARGET_OPTSPACE
+    bool
+    prompt "Optimize newlib for size"
+    default y
+    help
+      Pass --enable-target-optspace to newlib configure.
+      
+      This will compile newlib with -Os.
+
 config LIBC_NEWLIB_EXTRA_CONFIG_ARRAY
     string
     prompt "Extra config for newlib"
diff --git a/scripts/build/libc/newlib.sh b/scripts/build/libc/newlib.sh
index 70a970c..d987477 100644
--- a/scripts/build/libc/newlib.sh
+++ b/scripts/build/libc/newlib.sh
@@ -85,6 +85,8 @@ do_libc_start_files() {
         newlib_opts+=( "--enable-newlib-supplied-syscalls" )
     fi
 
+    [ "${CT_LIBC_NEWLIB_ENABLE_TARGET_OPTSPACE}" = "y" ] && newlib_opts+=("--enable-target-optspace")
+
     # Note: newlib handles the build/host/target a little bit differently
     # than one would expect:
     #   build  : not used
-- 
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