Append the flags specified with --cflags instead of replacing when building gcc.
By default emerge provide `portageq envvar CFLAGS` as CFLAGS to gcc building.
When CFLAGS is provided when calling emerge, it will replace the default CFLAGS.
This patch prepend `portageq envvar CFLAGS` to --cflags options.
It also fixed a bug for option --ldflags.
TESTED:
./build_tc.py -b x86-alex -c ~/cros1/ --cflags="-g3 -O0" -g ~/gcc47cros/ > log2
And look at the command line to ensure "-g3 -O0" is appended to the default options "-O2 -pipe".
PRESUBMIT=passed
R=yunlian,asharif,cmtice,shenhan,llozano
CC=c-compiler-chrome
APPROVED=llozano
DELTA=3 (0 added, 0 deleted, 3 changed)
OCL=65657-p2
RCL=65664-p2
RDATE=2013/02/05 11:00:56
P4 change: 42807183
diff --git a/v14/build_tc.py b/v14/build_tc.py
index 418e845..ea499c3 100755
--- a/v14/build_tc.py
+++ b/v14/build_tc.py
@@ -234,10 +234,10 @@
options.unmount_only = False
build_env = {}
if options.cflags:
- build_env["CFLAGS"] = options.cflags
+ build_env["CFLAGS"] = "`portageq envvar CFLAGS` " + options.cflags
if options.cxxflags:
- build_env["CXXFLAGS"] = options.cxxflags
- if options.cxxflags:
+ build_env["CXXFLAGS"] = "`portageq envvar CXXFLAGS` " + options.cxxflags
+ if options.ldflags:
build_env["LDFLAGS"] = options.ldflags
if options.debug:
debug_flags = "-g3 -O0"