Upstream-Status: Backport [The fix is already in upstream cvs repo, but not in the stable release]

When working on the self-hosted-image work, I found in the target
"bitbake eglibc-initial -c install" always failed:

make[1]: Entering directory `/raid/pe2/build/tmp/work/i586-poky-linux/eglibc-initial-2.13-r18+svnr14157/eglibc-2_13/libc'
/usr/bin/install -c -m 644 include/limits.h /usr/include/limits.h
/usr/bin/install: cannot remove `/usr/include/limits.h': Permission denied
make[1]: *** [/usr/include/limits.h] Error 1
make[1]: Leaving directory `/raid/pe2/build/tmp/work/i586-poky-linux/eglibc-initial-2.13-r18+svnr14157/eglibc-2_13/libc'
make: *** [install-headers] Error 2
ERROR: oe_runmake faile

Debugging shows the install_root variable in eglibc's makefiles is strangely
reset at some place.

Further investigation shows this is a bug of make-3.82:

http://savannah.gnu.org/bugs/?30723
http://cvs.savannah.gnu.org/viewvc/make/main.c?root=make&r1=1.243&r2=1.244
http://old.nabble.com/-bug--30723--implicit-re-executing-of-subdirs-breaks-$(origin)-with-make-3.82-td29394353.html

The patch was got from the second link above(the upstream cvs repo of make).

Thu Dec  1 16:05:59 CST 2011
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>

diff -Nru make-3.82.orig//main.c make-3.82/main.c
--- make-3.82.orig//main.c	2010-07-19 15:10:53.000000000 +0800
+++ make-3.82/main.c	2011-12-01 16:04:11.818522186 +0800
@@ -2093,7 +2093,7 @@
             const char *pv = define_makeflags (1, 1);
             char *p = alloca (sizeof ("MAKEFLAGS=") + strlen (pv) + 1);
             sprintf (p, "MAKEFLAGS=%s", pv);
-            putenv (p);
+            putenv (allocated_variable_expand (p));
           }
 
 	  if (ISDB (DB_BASIC))