[OE-core] [PATCH] kmod-native_git.bb: fix builds for hosts with older libc

[Matthew McClintock]

kmod will fail to build with the following error because O_CLOEXEC is
not defined:

| libkmod/libkmod-module.c: In function 'kmod_module_get_initstate':
| libkmod/libkmod-module.c:1640: error: 'O_CLOEXEC' undeclared (first use in this function)
| libkmod/libkmod-module.c:1640: error: (Each undeclared identifier is reported only once
| libkmod/libkmod-module.c:1640: error: for each function it appears in.)
| libkmod/libkmod-module.c: In function 'kmod_module_get_refcnt':
| libkmod/libkmod-module.c:1754: error: 'O_CLOEXEC' undeclared (first use in this function)
| libkmod/libkmod-module.c: In function 'kmod_module_get_sections':
| libkmod/libkmod-module.c:1913: error: 'O_CLOEXEC' undeclared (first use in this function)
| libkmod/libkmod-file.c: In function 'kmod_file_open':
| libkmod/libkmod-file.c:282: error: 'O_CLOEXEC' undeclared (first use in this function)
| libkmod/libkmod-file.c:282: error: (Each undeclared identifier is reported only once
| libkmod/libkmod-file.c:282: error: for each function it appears in.)

Since we are only using kmod-native for depmod, and it's a non-threaded
user of this libary being built this should be safe to override O_CLOEXEC.

Keep in mind this is ONLY effecting the native builds and not what is
being shipped in the root file system.

Signed-off-by: Matthew McClintock <msm at freescale.com>
---
 meta/recipes-kernel/kmod/kmod-native_git.bb |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-kernel/kmod/kmod-native_git.bb b/meta/recipes-kernel/kmod/kmod-native_git.bb
index 96de8b8..3c5e3c3 100644
--- a/meta/recipes-kernel/kmod/kmod-native_git.bb
+++ b/meta/recipes-kernel/kmod/kmod-native_git.bb
@@ -4,7 +4,7 @@
 require kmod.inc
 inherit native
 
-PR = "${INC_PR}.0"
+PR = "${INC_PR}.1"
 
 do_install_append (){
 	for tool in depmod insmod lsmod modinfo modprobe rmmod
@@ -12,3 +12,9 @@ do_install_append (){
 		ln -s kmod ${D}${bindir}/$tool
 	done
 }
+
+do_compile_append (){
+	if ! grep O_CLOEXEC -r ${includedir_native}/bits/fcntl.h; then
+		export CFLAGS="$CFLAGS -D O_CLOEXEC=0"
+	fi
+}
-- 
1.7.9.7