Update Mac OSX builds to use -std=c89 rather than -ansi

config/Makefile.darwin

@@ -3,7 +3,7 @@ NAME = $(GLEW_NAME)
 CC = cc
 LD = cc
 CFLAGS.EXTRA = -dynamic -fno-common
-CFLAGS.EXTRA += -ansi -pedantic
+CFLAGS.EXTRA += -std=c89 -pedantic
 #CFLAGS.EXTRA += -no-cpp-precomp
 LDFLAGS.EXTRA =
 ifneq (undefined, $(origin GLEW_APPLE_GLX))

config/Makefile.darwin-ppc

+# Note: PPC is no longer actively maintained for GLEW, but this configuration
+#       is here for reference.
 GLEW_DEST = /usr/local
 NAME = $(GLEW_NAME)
 CC = cc

config/Makefile.darwin-universal

@@ -6,6 +6,7 @@ AR =
 LIBTOOL = libtool -static -o
 STRIP = 
 CFLAGS.EXTRA = -dynamic -fno-common
+CFLAGS.EXTRA += -std=c89 -pedantic
 #CFLAGS.EXTRA += -no-cpp-precomp
 CFLAGS.EXTRA += -arch i386 -arch x86_64
 LDFLAGS.EXTRA = -arch i386 -arch x86_64

config/Makefile.darwin-x86_64

@@ -3,6 +3,7 @@ NAME = $(GLEW_NAME)
 CC = cc
 LD = cc
 CFLAGS.EXTRA = -arch x86_64 -dynamic -fno-common
+CFLAGS.EXTRA += -std=c89 -pedantic
 #CFLAGS.EXTRA += -no-cpp-precomp
 LDFLAGS.EXTRA = -arch x86_64
 ifneq (undefined, $(origin GLEW_APPLE_GLX))