[oe-commits] Dexuan Cui : gcc-package-target.inc: add the symbol link /lib/cpp

[git at git.openembedded.org]

Module: openembedded-core.git
Branch: master
Commit: 58fb9fbce2af05a469691390e75aebb2de16ca96
URL:    http://git.openembedded.org/?p=openembedded-core.git&a=commit;h=58fb9fbce2af05a469691390e75aebb2de16ca96

Author: Dexuan Cui <dexuan.cui at intel.com>
Date:   Wed Nov 16 17:49:44 2011 +0800

gcc-package-target.inc: add the symbol link /lib/cpp

When I was trying self-hosted-image, eglibc's do_install failed in the target:
ERROR: cannot stat bootparam_prot.h:
the cause is: rpcgen doesn't work properly: rpcgen can't exec /lib/cpp since
it doesn't exist.

According to http://tldp.org/LDP/Linux-Filesystem-Hierarchy/html/lib.html:
"if a C preprocessor is installed, /lib/cpp must be a reference to it, for
historical reasons. The usual placement of this binary is /usr/bin/cpp".

Typical distros, like Ubuntu, openSuSE, Fedora and RHEL, all comply with
the rule.

Actually in meta/recipes-devtools/gcc/gcc-package-target.inc, we do try to
package ${base_libdir}/cpp:
 FILES_cpp = "\
  ${bindir}/${TARGET_PREFIX}cpp \
  ${base_libdir}/cpp \
  ${libexecdir}/gcc/${TARGET_SYS}/${BINV}/cc1"
But unluckily we didn't create a symbol link in do_install.
This patch adds the symbol link.

Signed-off-by: Dexuan Cui <dexuan.cui at intel.com>

---

 meta/recipes-devtools/gcc/gcc-4.6.inc            |    2 +-
 meta/recipes-devtools/gcc/gcc-package-target.inc |    2 ++
 2 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/meta/recipes-devtools/gcc/gcc-4.6.inc b/meta/recipes-devtools/gcc/gcc-4.6.inc
index 7bf14e3..7cd0850 100644
--- a/meta/recipes-devtools/gcc/gcc-4.6.inc
+++ b/meta/recipes-devtools/gcc/gcc-4.6.inc
@@ -1,6 +1,6 @@
 require gcc-common.inc
 
-PR = "r17"
+PR = "r18"
 
 # Third digit in PV should be incremented after a minor release
 # happens from this branch on gcc e.g. currently its 4.6.0
diff --git a/meta/recipes-devtools/gcc/gcc-package-target.inc b/meta/recipes-devtools/gcc/gcc-package-target.inc
index f0f1a04..3076670 100644
--- a/meta/recipes-devtools/gcc/gcc-package-target.inc
+++ b/meta/recipes-devtools/gcc/gcc-package-target.inc
@@ -122,6 +122,8 @@ do_install () {
 	ln -sf ${TARGET_PREFIX}g++ g++
 	ln -sf ${TARGET_PREFIX}gcc gcc
 	ln -sf ${TARGET_PREFIX}cpp cpp
+	install -d ${D}${base_libdir}
+	ln -sf ${bindir}/${TARGET_PREFIX}cpp ${D}${base_libdir}/cpp
 	ln -sf g++ c++
 	ln -sf gcc cc