mraa: Replace -fcommon with fix

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/mraa/mraa/0001-include-Declare-gVERSION-global-as-extern.patch

@@ -0,0 +1,31 @@
+From dbb5961f106ec42cd70689d933674c9c37aedfe1 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bj=C3=B6rn=20Esser?= <besser82@fedoraproject.org>
+Date: Mon, 13 Apr 2020 20:12:11 +0200
+Subject: include: Declare gVERSION global as 'extern'.
+
+Fixes build with '-fno-common'.
+
+Upstream-Status: Submitted [https://github.com/eclipse/mraa/pull/1012]
+Signed-off-by: Adrian Bunk <bunk@stusta.de>
+---
+ include/version.h | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/include/version.h b/include/version.h
+index 47366ef..3a567a1 100644
+--- a/include/version.h
++++ b/include/version.h
+@@ -11,8 +11,8 @@
+ extern "C" {
+ #endif
+ 
+-const char* gVERSION;
+-const char* gVERSION_SHORT;
++extern const char* gVERSION;
++extern const char* gVERSION_SHORT;
+ 
+ #ifdef __cplusplus
+ }
+-- 
+2.17.1
+

meta-oe/recipes-extended/mraa/mraa_git.bb

@@ -10,6 +10,7 @@ PV = "2.1.0+git${SRCPV}"
 
 SRC_URI = "git://github.com/eclipse/${BPN}.git;protocol=http \
            file://0001-cmake-Use-a-regular-expression-to-match-x86-architec.patch \
+           file://0001-include-Declare-gVERSION-global-as-extern.patch \
            "
 
 S = "${WORKDIR}/git"
@@ -27,8 +28,6 @@ EXTRA_OECMAKE_append = " -DINSTALLTOOLS:BOOL=ON -DFIRMATA=ON -DCMAKE_SKIP_RPATH=
                          -DPYTHON_INCLUDE_DIR=${STAGING_INCDIR}/${PYTHON_DIR}${PYTHON_ABI} \
                        "
 
-CFLAGS += "-fcommon"
-
 # Prepend mraa-utils to make sure bindir ends up in there
 PACKAGES =+ "${PN}-utils"