freebsd: Fixes for the compilation of libosmocore on FreeBSD
alloca.h is not available on FreeBSD, use the default autoconf
function to check for it, there is a complete list[1] of what to
do for using alloca but let us see how far we get with this test.
Include netinet/in.h for the IPv4 and IPv6 socket address. Check
for dlopen in libraries and use this instead of linking -dl.
[1] http://www.gnu.org/s/hello/manual/autoconf/Particular-Functions.html
diff --git a/src/Makefile.am b/src/Makefile.am
index 6c0398b..25da356 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -19,7 +19,7 @@
if ENABLE_PLUGIN
libosmocore_la_SOURCES += plugin.c
-libosmocore_la_LDFLAGS = -version-info $(LIBVERSION) -ldl
+libosmocore_la_LDFLAGS = -version-info $(LIBVERSION) $(LIBRARY_DL)
else
libosmocore_la_LDFLAGS = -version-info $(LIBVERSION)
endif