tests: dlopen does not imply availability of dlsym..
Check for both.
Change-Id: If41a20bf499f791432f5f207e40688e97fb6e9f7
diff --git a/configure.ac b/configure.ac
index 644a0bd..6aab8d7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -38,6 +38,9 @@
AC_SEARCH_LIBS([dlopen], [dl dld], [LIBRARY_DL="$LIBS";LIBS=""])
AC_SUBST(LIBRARY_DL)
+AC_SEARCH_LIBS([dlsym], [dl dld], [LIBRARY_DLSYM="$LIBS";LIBS=""])
+AC_SUBST(LIBRARY_DLSYM)
+
PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 1.2.0)
PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 1.2.0)
diff --git a/tests/gbproxy/Makefile.am b/tests/gbproxy/Makefile.am
index cb245b4..b9585ac 100644
--- a/tests/gbproxy/Makefile.am
+++ b/tests/gbproxy/Makefile.am
@@ -46,5 +46,6 @@
$(LIBOSMOVTY_LIBS) \
$(LIBOSMOABIS_LIBS) \
$(LIBRARY_DL) \
+ $(LIBRARY_DLSYM) \
-lrt \
$(NULL)