Do not use the hardcoded make

Index: src/Makefile.in
--- src/Makefile.in.orig
+++ src/Makefile.in
@@ -452,7 +452,7 @@ libgloox_la_SOURCES = jid.cpp parser.cpp connectiontcp
                         carbons.cpp jinglepluginfactory.cpp jingleiceudp.cpp jinglefiletransfer.cpp \
                         iodata.cpp
 
-libgloox_la_LDFLAGS = -version-info 17:0:0 -no-undefined -no-allow-shlib-undefined
+libgloox_la_LDFLAGS = -version-info 17:0:0 -no-undefined
 libgloox_la_LIBADD = 
 libgloox_la_CFLAGS = $(CPPFLAGS)
 libglooxincludedir = $(includedir)/gloox
@@ -1044,12 +1044,12 @@ uninstall-am: uninstall-libLTLIBRARIES \
               #-Werror
 
 test:
-	make -C tests test
+	${MAKE_PROGRAM} -C tests test
 
 check: test
 
 leaktest:
-	make -C tests leaktest
+	${MAKE_PROGRAM} -C tests leaktest
 
 leakcheck: leaktest