Obey LDFLAGS for tests

Upstream-Status: Submitted [https://github.com/madler/zlib/pull/409]
Signed-off-by: Ross Burton <ross.burton@intel.com>

--- zlib-1.2.8.orig/Makefile.in
+++ zlib-1.2.8/Makefile.in
@@ -26,7 +26,7 @@ CFLAGS=-O

 SFLAGS=-O
 LDFLAGS=
-TEST_LDFLAGS=-L. libz.a
+TEST_LDFLAGS=-L. $(LDFLAGS)
 LDSHARED=$(CC)
 CPP=$(CC) -E

@@ -176,22 +176,22 @@ placebo $(SHAREDLIBV): $(PIC_OBJS) libz.
	-@rmdir objs

 example$(EXE): example.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS)
+	$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS) $(STATICLIB)

 minigzip$(EXE): minigzip.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS) $(STATICLIB)

 examplesh$(EXE): example.o $(SHAREDLIBV)
-	$(CC) $(CFLAGS) -o $@ example.o -L. $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ example.o $(TEST_LDFLAGS) $(SHAREDLIBV)

 minigzipsh$(EXE): minigzip.o $(SHAREDLIBV)
-	$(CC) $(CFLAGS) -o $@ minigzip.o -L. $(SHAREDLIBV)
+	$(CC) $(CFLAGS) -o $@ minigzip.o $(TEST_LDFLAGS) $(SHAREDLIBV)

 example64$(EXE): example64.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS)
+	$(CC) $(CFLAGS) -o $@ example64.o $(TEST_LDFLAGS) $(STATICLIB)

 minigzip64$(EXE): minigzip64.o $(STATICLIB)
-	$(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS)
+	$(CC) $(CFLAGS) -o $@ minigzip64.o $(TEST_LDFLAGS) $(STATICLIB)

 install-libs: $(LIBS)
	-@if [ ! -d $(DESTDIR)$(exec_prefix)  ]; then mkdir -p $(DESTDIR)$(exec_prefix); fi