gcc-initial, gcc-intermediate, gcc-final: optimize extraction
Several sub-directories of the gcc code base are in fact not needed
for the Buildroot build: libjava/, libgo/ and gcc/testsuite/ being the
biggest ones. Avoiding their extraction saves quite a bit of disk
space, and compensates a bit the fact that we now extract three times
the gcc source code.
This requires changing the 100-uclibc-conf.patch to no longer patch
files from the libjava/ directory, since this directory is no longer
extracted.
[Peter: add comment about why this is done]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
diff --git a/package/gcc/gcc.mk b/package/gcc/gcc.mk
index 3b61ffd..790762d 100644
--- a/package/gcc/gcc.mk
+++ b/package/gcc/gcc.mk
@@ -43,6 +43,23 @@
endef
#
+# Custom extract command to save disk space
+#
+
+define HOST_GCC_EXTRACT_CMDS
+ $(BZCAT) $(DL_DIR)/$(GCC_SOURCE) | \
+ $(TAR) $(TAR_STRIP_COMPONENTS)=1 -C $(@D) \
+ --exclude='libjava/*' \
+ --exclude='libgo/*' \
+ --exclude='gcc/testsuite/*' \
+ --exclude='libstdc++-v3/testsuite/*' \
+ $(TAR_OPTIONS) -
+ mkdir -p $(@D)/libstdc++-v3/testsuite/
+ echo "all:" > $(@D)/libstdc++-v3/testsuite/Makefile.in
+ echo "install:" >> $(@D)/libstdc++-v3/testsuite/Makefile.in
+endef
+
+#
# Create 'build' directory and configure symlink
#
