cpu/mips/cofigl.mk: Make a needlessly deffered expansion immediate.
This reduces the build time by ~10%. Here's the gth2_config example.
BEFORE AFTER
real 0m31.441s 0m27.833s
user 0m24.766s 0m23.045s
sys 0m10.425s 0m7.468s
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
diff --git a/cpu/mips/config.mk b/cpu/mips/config.mk
index ad03bd6..b505a42 100644
--- a/cpu/mips/config.mk
+++ b/cpu/mips/config.mk
@@ -21,7 +21,7 @@
# MA 02111-1307 USA
#
v=$(shell $(AS) --version |grep "GNU assembler" |cut -d. -f2)
-MIPSFLAGS=$(shell \
+MIPSFLAGS:=$(shell \
if [ "$v" -lt "14" ]; then \
echo "-mcpu=4kc"; \
else \