linuxptp: Use environment compiler settings

If the machine uses hard floating point, the build fails as below:

arm-oel-linux-gnueabi-gcc -Wall ...
In file included from .../build/tmp/sysroots/imx6qsabresd/usr/include/features.h:402:0,
                 from .../build/tmp/sysroots/imx6qsabresd/usr/include/errno.h:28,
                 from clock.c:19:
.../build/tmp/sysroots/imx6qsabresd/usr/include/gnu/stubs.h:7:29:
    fatal error: gnu/stubs-soft.h: No such file or directory
 # include <gnu/stubs-soft.h>

This patch fixes the build system to reuse the CC variable and also
passes over the defined CFLAGS so the choosen optimization and build
options are respected.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/meta-oe/recipes-connectivity/linuxptp/linuxptp_1.4.bb b/meta-oe/recipes-connectivity/linuxptp/linuxptp_1.4.bb
index 10d674405f..4ee0c8873b 100644
--- a/meta-oe/recipes-connectivity/linuxptp/linuxptp_1.4.bb
+++ b/meta-oe/recipes-connectivity/linuxptp/linuxptp_1.4.bb
@@ -2,13 +2,14 @@ DESCRIPTION = "Precision Time Protocol (PTP) according to IEEE standard 1588 for
 LICENSE = "GPLv2"
 LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
-SRC_URI = "http://sourceforge.net/projects/linuxptp/files/v${PV}/linuxptp-${PV}.tgz"
+SRC_URI = "http://sourceforge.net/projects/linuxptp/files/v${PV}/linuxptp-${PV}.tgz \
+           file://build-Allow-CC-and-prefix-to-be-overriden.patch"
 
 SRC_URI[md5sum] = "a37ad2b2ef7d1ebc4d64a66d3fe55cdf"
 SRC_URI[sha256sum] = "6cfd5291fb7394cc9f25458927874a203971b66b76d1c9d6568e007d0cbd81f2"
 
-EXTRA_OEMAKE = "CROSS_COMPILE=${TARGET_PREFIX} ARCH=${TARGET_ARCH} \
-                EXTRA_CFLAGS='-D_GNU_SOURCE -DHAVE_CLOCK_ADJTIME -DHAVE_ONESTEP_SYNC'"
+EXTRA_OEMAKE = "ARCH=${TARGET_ARCH} \
+                EXTRA_CFLAGS='-D_GNU_SOURCE -DHAVE_CLOCK_ADJTIME -DHAVE_ONESTEP_SYNC ${CFLAGS}'"
 
 do_install () {
     install -d ${D}/${bindir}