olsrd: fix compilation with musl 1.2.x

Signed-off-by: Rosen Penev <rosenp@gmail.com>

olsrd/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=olsrd
 PKG_SOURCE_DATE:=2020-06-18
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/OLSR/olsrd.git

olsrd/patches/010-musl.patch

@@ -0,0 +1,11 @@
+--- a/lib/pud/nmealib/src/info.c
++++ b/lib/pud/nmealib/src/info.c
+@@ -172,7 +172,7 @@ bool nmeaTimeParseDate(const char *s, NmeaTime *date) {
+ void nmeaTimeSet(NmeaTime *utc, uint32_t *present, struct timeval *timeval) {
+   struct timeval tv;
+   struct tm tm;
+-  long usec;
++  time_t usec;
+ 
+   if (!utc) {
+     return;