gentoo-overlay/net-firewall/nftlb/files/nftlb-1.0.8-musl.patch

diff --git a/configure.ac b/configure.ac
index 8ec1711..1de7be7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,6 +2,7 @@ AC_INIT([nftlb], [1.0.8], [netfilter-devel@vger.kernel.org])
 
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
+AC_CONFIG_HEADERS([config.h])
 AM_INIT_AUTOMAKE([-Wall foreign subdir-objects
         tar-pax no-dist-gzip dist-bzip2 1.6])
 
@@ -25,5 +26,7 @@ AC_CHECK_HEADER([ev.h], [EVENTINC="-include ev.h"],
 				 [EVENTINC="-include libev/ev.h"],
 				 [AC_MSG_ERROR([ev.h not found])])])
 
+AC_CHECK_HEADERS([execinfo.h])
+
 AC_CONFIG_FILES([Makefile src/Makefile])
 AC_OUTPUT
diff --git a/src/main.c b/src/main.c
index 2149e34..9ff3f7b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -18,6 +18,7 @@
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#include "config.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -25,6 +26,10 @@
 #include <errno.h>
 #include <unistd.h>
 
+#ifdef HAVE_EXECINFO_H
+ #include <execinfo.h>
+#endif /* HAVE_EXECINFO_H */
+
 #include "config.h"
 #include "objects.h"
 #include "server.h"
@@ -88,6 +93,7 @@ static void nftlb_sighandler(int signo)
 	exit(EXIT_SUCCESS);
 }
 
+#ifdef HAVE_EXECINFO_H
 static void nftlb_trace() {
 	int level;
 
@@ -100,6 +106,7 @@ static void nftlb_trace() {
 	if (!obj_recovery())
 		exit(EXIT_FAILURE);
 }
+#endif /* HAVE_EXECINFO_H */
 
 static int main_process(const char *config, int mode)
 {
@@ -189,9 +196,13 @@ int main(int argc, char *argv[])
 
 	if (signal(SIGINT, nftlb_sighandler) == SIG_ERR ||
 	    signal(SIGTERM, nftlb_sighandler) == SIG_ERR ||
+#ifdef HAVE_EXECINFO_H
 	    signal(SIGPIPE, SIG_IGN) == SIG_ERR ||
 	    signal(SIGABRT, nftlb_trace) == SIG_ERR ||
 	    signal(SIGSEGV, nftlb_trace) == SIG_ERR) {
+#else
+	    signal(SIGPIPE, SIG_IGN) == SIG_ERR) {
+#endif /* HAVE_EXECINFO_H */
 		zcu_log_print(LOG_ERR, "Error assigning signals");
 		return EXIT_FAILURE;
 	}