[dpdk-dev] [PATCH 3/3] eal: remove references to execinfo.h for musl

[Wei Dai <wei.dai@intel.com>]

execinfo.h is not supported by musl now.
need to remove references to execinfo.h to
build DPDK with musl.

musl is an implementation of the userspace portion
of the standard library functionality described in
the ISO C and POSIX standards, plus common extensions.

Get more details about musl from
http://www.musl-libc.org

Signed-off-by: Wei Dai <wei.dai@intel.com>
---
 lib/librte_eal/linuxapp/eal/eal_debug.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/linuxapp/eal/eal_debug.c b/lib/librte_eal/linuxapp/eal/eal_debug.c
index 5fbc17c..d2416ee 100644
--- a/lib/librte_eal/linuxapp/eal/eal_debug.c
+++ b/lib/librte_eal/linuxapp/eal/eal_debug.c
@@ -31,7 +31,10 @@
  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <execinfo.h>
+#ifndef RTE_LIBC_MUSL
+	#include <execinfo.h>
+#endif
+
 #include <stdarg.h>
 #include <signal.h>
 #include <stdlib.h>
@@ -47,6 +50,7 @@
 /* dump the stack of the calling core */
 void rte_dump_stack(void)
 {
+#ifndef RTE_LIBC_MUSL
 	void *func[BACKTRACE_SIZE];
 	char **symb = NULL;
 	int size;
@@ -64,6 +68,7 @@ void rte_dump_stack(void)
 	}
 
 	free(symb);
+#endif
 }
 
 /* not implemented in this environment */
-- 
2.7.4