[oe] [meta-oe][v2][PATCH 2/2] libexecinfo: fix complie issue

[Armin Kuster]

define _GNU_SOURCES to fix compile issue:
 execinfo.c:76:5: error: unknown type name 'Dl_info'
|      Dl_info info;
|      ^~~~~~~
| execinfo.c:83:13: warning: implicit declaration of function 'dladdr' [-Wimplicit-function-declaration]
|          if (dladdr(buffer[i], &info) != 0) {

V2: Merged two CFLAGS lines into one.

Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
 meta-oe/recipes-extended/libexecinfo/libexecinfo_1.1.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-oe/recipes-extended/libexecinfo/libexecinfo_1.1.bb b/meta-oe/recipes-extended/libexecinfo/libexecinfo_1.1.bb
index f79b1ab..d4bad38 100644
--- a/meta-oe/recipes-extended/libexecinfo/libexecinfo_1.1.bb
+++ b/meta-oe/recipes-extended/libexecinfo/libexecinfo_1.1.bb
@@ -15,7 +15,7 @@ SRC_URI = "http://distcache.freebsd.org/local-distfiles/itetcu/${BP}.tar.bz2 \
 SRC_URI[md5sum] = "8e9e81c554c1c5d735bc877448e92b91"
 SRC_URI[sha256sum] = "c9a21913e7fdac8ef6b33250b167aa1fc0a7b8a175145e26913a4c19d8a59b1f"
 
-CFLAGS += "-fno-omit-frame-pointer"
+CFLAGS += "-fno-omit-frame-pointer  -D_GNU_SOURCE"
 
 do_install() {
     install -D -m 0744 ${S}/execinfo.h ${D}${includedir}/execinfo.h
-- 
2.7.4