websocket: fix cross-compilation

modules/websocket/Makefile

@@ -7,17 +7,31 @@ include ../../Makefile.defs
 auto_gen=
 NAME=websocket.so
 
-BUILDER = $(shell which pkg-config)
-ifeq ($(BUILDER),)
-        DEFS+= -I$(LOCALBASE)/ssl/include
-        LIBS=  -L$(LOCALBASE)/lib -L$(LOCALBASE)/ssl/lib \
-			-L$(LOCALBASE)/lib64 -L$(LOCALBASE)/ssl/lib64 \
-			-lssl
+ifeq ($(CROSS_COMPILE),)
+SSL_BUILDER=$(shell \
+	if pkg-config --exists libssl; then \
+		echo 'pkg-config libssl'; \
+	fi)
+endif
+
+ifneq ($(SSL_BUILDER),)
+	DEFS += $(shell $(SSL_BUILDER) --cflags)
+	LIBS += $(shell $(SSL_BUILDER) --libs)
 else
-	DEFS+= $(shell pkg-config --cflags libssl)
-	LIBS=  $(shell pkg-config --libs libssl)
+	DEFS += -I$(LOCALBASE)/ssl/include
+	LIBS += -L$(LOCALBASE)/lib -L$(LOCALBASE)/ssl/lib \
+			-L$(LOCALBASE)/lib64 -L$(LOCALBASE)/ssl/lib64 \
+			-lssl -lcrypto
+	# NOTE: depending on the way in which libssl was compiled you might
+	#       have to add -lz -lkrb5   (zlib and kerberos5).
+	#       E.g.: make TLS_HOOKS=1 TLS_EXTRA_LIBS="-lz -lkrb5"
 endif
-LIBS+= -lunistring
+
+LIBS+= $(TLS_EXTRA_LIBS) -lunistring
+
+# Static linking, if you'd like to use TLS and WEBSOCKET at the same time
+#
+#LIBS+= /usr/lib/libcurl.a /usr/lib/libssl.a /usr/lib/libcrypto.a -lkrb5 -lidn -lz -lgssapi_krb5 -lrt
 
 DEFS+=-DKAMAILIO_MOD_INTERFACE