[PATCH v2 10/10] libx11.inc: fix build issues for older CentOS distros

[Matthew McClintock <msm@freescale.com>]

Fixes these sorts of issues present on older gcc (CentOS 5.x in this case)

| cc1: error: unrecognized command line option "-Werror=implicit"
| cc1: error: unrecognized command line option "-Werror=nonnull"
| cc1: error: unrecognized command line option "-Werror=init-self"
| cc1: error: unrecognized command line option "-Werror=main"
| cc1: error: unrecognized command line option "-Werror=missing-braces"
| cc1: error: unrecognized command line option "-Werror=sequence-point"
| cc1: error: unrecognized command line option "-Werror=return-type"
| cc1: error: unrecognized command line option "-Werror=trigraphs"
| cc1: error: unrecognized command line option "-Werror=array-bounds"
| cc1: error: unrecognized command line option "-Werror=write-strings"
| cc1: error: unrecognized command line option "-Werror=address"
| cc1: error: unrecognized command line option "-Werror=int-to-pointer-cast"
| cc1: error: unrecognized command line option "-Werror=pointer-to-int-cast"

Also fixes:

makekeys-makekeys.o: In function `main':
makekeys.c:(.text+0x85): undefined reference to `__isoc99_sscanf'
makekeys.c:(.text+0xa7): undefined reference to `__isoc99_sscanf'
collect2: ld returned 1 exit status
make: *** [makekeys] Error 1

Older libc do not have this defined, we can use the -D_GNU_SOURCE
to the compiler to prevent generating calls to this function and
make linking work

Signed-off-by: Matthew McClintock <msm@freescale.com>
---
This replaces the previous patch series that fixes libx11 issues

 meta/recipes-graphics/xorg-lib/libx11.inc |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/meta/recipes-graphics/xorg-lib/libx11.inc b/meta/recipes-graphics/xorg-lib/libx11.inc
index 3ecd9e5..97bd1c2 100644
--- a/meta/recipes-graphics/xorg-lib/libx11.inc
+++ b/meta/recipes-graphics/xorg-lib/libx11.inc
@@ -11,7 +11,7 @@ inherit siteinfo
 FILESPATH = "${FILE_DIRNAME}/libx11"
 
 PE = "1"
-INC_PR = "r8"
+INC_PR = "r9"
 
 PROVIDES = "virtual/libx11"
 
@@ -23,6 +23,7 @@ DEPENDS += "xproto xextproto xtrans libxcb kbproto inputproto"
 DEPENDS += "xproto-native"
 
 EXTRA_OECONF += "--with-keysymdefdir=${STAGING_INCDIR}/X11/"
+EXTRA_OEMAKE += 'CWARNFLAGS=""'
 
 # Let people with incredibly archaic requirements enable Xcms and BigFont, but
 # disable them by default.
@@ -33,7 +34,7 @@ PACKAGECONFIG[bigfont] = "--enable-xf86bigfont,--disable-xf86bigfont,xf86bigfont
 # src/util/makekeys needs to be compiled natively, so tell it what compiler to
 # use.
 export CC_FOR_BUILD = "${BUILD_CC}"
-export CFLAGS_FOR_BUILD = "${BUILD_CFLAGS}"
+export CFLAGS_FOR_BUILD = "${BUILD_CFLAGS} -D_GNU_SOURCE"
 export CPPFLAGS_FOR_BUILD = "${BUILD_CPPFLAGS}"
 export LDFLAGS_FOR_BUILD = "${BUILD_LDFLAGS}"
 
-- 
1.7.9.7