eglibc: Add patch to limit gcc commandline output.

* This patch reduced the size of do_compile of eglibc from 12M to 5.4M
  and the build time for eglibc improved a bit too

* The patch applied to 2.9,2.10 and 2.11

Signed-off-by: Khem Raj <raj.khem@gmail.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/recipes/eglibc/files/shorten-build-commands.patch b/recipes/eglibc/files/shorten-build-commands.patch
new file mode 100644
index 0000000000..57835adcdb
--- /dev/null
+++ b/recipes/eglibc/files/shorten-build-commands.patch
@@ -0,0 +1,79 @@
+Source: http://sourceware.org/ml/libc-alpha/2010-03/msg00064.html
+
+This patch scratches an itch.  Each individual gcc command in the
+glibc build is over 1K, which means it takes up a good chunk of my
+terminal.  Most of that is include paths.  Any version of GCC new
+enough to build glibc supports response files, which were added in
+2005.  So use a response file for the static list of include paths.
+Now the build commands are a lot shorter, and easier to use when
+developing glibc.
+
+Tested on x86_64-linux-gnu.  Please apply if acceptable.
+
+-- 
+Daniel Jacobowitz
+CodeSourcery
+
+2010-03-30  Daniel Jacobowitz  <dan@codesourcery.com>
+
+	* Makeconfig (+common-includes): Define.
+	(+includes): Use @$(common-objpfx)includes.
+	* Makefile (postclean): Remove includes and includes.mk.
+	* Makerules ($(common-objpfx)includes.mk): Include and create
+	includes.mk.  Create includes.
+
+Index: libc/Makeconfig
+===================================================================
+--- libc.orig/Makeconfig	2009-10-13 22:55:12.000000000 -0700
++++ libc/Makeconfig	2010-03-31 16:02:37.120489733 -0700
+@@ -678,9 +678,10 @@ endif	# $(+cflags) == ""
+ # library source directory, in the include directory, and in the
+ # current directory.
+ +sysdep-includes = $(addprefix -I,$(+sysdep_dirs))
+++common-includes = $(+sysdep-includes) $(includes) $(sysincludes)
+ +includes = -I$(..)include $(if $(subdir),$(objpfx:%/=-I%)) \
+-	    $(+sysdep-includes) $(includes) \
+-	    $(patsubst %/,-I%,$(..)) $(libio-include) -I. $(sysincludes)
++	    @$(common-objpfx)includes \
++	    $(patsubst %/,-I%,$(..)) $(libio-include) -I.
+ 
+ # Since libio has several internal header files, we use a -I instead
+ # of many little headers in the include directory.
+Index: libc/Makefile
+===================================================================
+--- libc.orig/Makefile	2009-12-09 12:06:28.000000000 -0800
++++ libc/Makefile	2010-03-31 16:02:37.132481508 -0700
+@@ -247,7 +247,7 @@ parent-mostlyclean: common-mostlyclean #
+ parent-clean: parent-mostlyclean common-clean
+ 
+ postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
+-	    $(addprefix $(objpfx),sysd-dirs sysd-rules) \
++	    $(addprefix $(objpfx),sysd-dirs sysd-rules includes includes.mk) \
+ 	    $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
+ 
+ clean: parent-clean
+Index: libc/Makerules
+===================================================================
+--- libc.orig/Makerules	2009-12-09 12:06:28.000000000 -0800
++++ libc/Makerules	2010-03-31 16:02:37.140481645 -0700
+@@ -254,6 +254,20 @@ ifndef sysd-rules-done
+ no_deps=t
+ endif
+ 
++-include $(common-objpfx)includes.mk
++ifneq ($(+common-includes),$(saved-includes))
++# Recreate includes.mk (and includes).
++includes-force = FORCE
++FORCE:
++endif
++$(common-objpfx)includes.mk: $(includes-force)
++	-@rm -f $@T $(common-objpfx)includesT
++	for inc in $(+common-includes); do echo "$$inc"; done \
++	  > $(common-objpfx)includesT
++	mv -f $(common-objpfx)includesT $(common-objpfx)includes
++	echo 'saved-includes := $(+common-includes)' > $@T
++	mv -f $@T $@
++
+ define o-iterator-doit
+ $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
+ endef