--- make/autoconf/spec.gmk.in
+++ make/autoconf/spec.gmk.in
@@ -746,7 +746,11 @@ TAR_SUPPORTS_TRANSFORM:=@TAR_SUPPORTS_TRANSFORM@
 ENABLE_AOT:=@ENABLE_AOT@
 ENABLE_INTREE_EC:=@ENABLE_INTREE_EC@
 USE_EXTERNAL_LIBJPEG:=@USE_EXTERNAL_LIBJPEG@
+JPEG_CFLAGS:=@JPEG_CFLAGS@
+JPEG_LIBS:=@JPEG_LIBS@
 USE_EXTERNAL_LIBGIF:=@USE_EXTERNAL_LIBGIF@
+GIFLIB_CFLAGS:=@GIFLIB_CFLAGS@
+GIFLIB_LIBS:=@GIFLIB_LIBS@
 USE_EXTERNAL_LIBZ:=@USE_EXTERNAL_LIBZ@
 LIBZ_CFLAGS:=@LIBZ_CFLAGS@
 LIBZ_LIBS:=@LIBZ_LIBS@