$NetBSD: patch-Makefile,v 1.3 2021/02/17 14:20:35 wiz Exp $

On Darwin, do not put GLU as required lib in glew.pc.
Use LDFLAGS for linking.

--- Makefile.orig	2020-03-15 11:53:59.000000000 +0000
+++ Makefile
@@ -48,8 +48,10 @@ INCDIR    ?= $(GLEW_DEST)/include/GL
 PKGDIR    ?= $(GLEW_DEST)/lib/pkgconfig
 
 ifneq ($(GLEW_NO_GLU), -DGLEW_NO_GLU)
+ifneq ($(SYSTEM), darwin)
 LIBGLU = glu
 endif
+endif
 
 DIST_NAME    ?= glew-$(GLEW_VERSION)
 DIST_SRC_ZIP ?= $(shell pwd)/$(DIST_NAME).zip
@@ -120,7 +122,7 @@ ifneq ($(STRIP),)
 endif
 
 $(LIB.SHARED.DIR)/$(LIB.SHARED): $(LIB.SOBJS)
-	$(LD) $(LDFLAGS.SO) -o $@ $^ $(LIB.LDFLAGS) $(LIB.LIBS)
+	$(CC) $(LDFLAGS) $(LDFLAGS.SO) -o $@ $^ $(LIB.LDFLAGS) $(LIB.LIBS)
 ifneq ($(LN),)
 	$(LN) $(LIB.SHARED) $(LIB.SHARED.DIR)/$(LIB.SONAME)
 	$(LN) $(LIB.SHARED) $(LIB.SHARED.DIR)/$(LIB.DEVLNK)
@@ -180,13 +182,13 @@ bin:
 	mkdir bin
 
 bin/$(GLEWINFO.BIN): $(GLEWINFO.BIN.OBJ) $(LIB.SHARED.DIR)/$(LIB.SHARED)
-	$(CC) $(CFLAGS) -o $@ $(GLEWINFO.BIN.OBJ) $(BIN.LIBS)
+	$(CC) $(LDFLAGS) -o $@ $(GLEWINFO.BIN.OBJ) $(BIN.LIBS)
 ifneq ($(STRIP),)
 	$(STRIP) -x $@
 endif
 
 bin/$(VISUALINFO.BIN): $(VISUALINFO.BIN.OBJ) $(LIB.SHARED.DIR)/$(LIB.SHARED)
-	$(CC) $(CFLAGS) -o $@ $(VISUALINFO.BIN.OBJ) $(BIN.LIBS)
+	$(CC) $(LDFLAGS) -o $@ $(VISUALINFO.BIN.OBJ) $(BIN.LIBS)
 ifneq ($(STRIP),)
 	$(STRIP) -x $@
 endif