$NetBSD: patch-Makefile,v 1.4 2023/10/03 19:26:20 scole Exp $

use options framework and libtool

--- Makefile.orig	2023-03-25 20:53:37.000000000 +0000
+++ Makefile
@@ -22,7 +22,7 @@ ifndef CONFIG
 # Obviously, you must select at least one of the available gzip, xz, lzo,
 # lz4, zstd or lzma (deprecated) compression types.
 #
-GZIP_SUPPORT = 1
+#GZIP_SUPPORT = 1
 
 ########### Building XZ support #############
 #
@@ -92,7 +92,7 @@ GZIP_SUPPORT = 1
 # in Mksquashfs.  Obviously the compression algorithm must have been
 # selected to be built
 #
-COMP_DEFAULT = gzip
+#COMP_DEFAULT = gzip
 
 
 ###############################################
@@ -104,7 +104,7 @@ COMP_DEFAULT = gzip
 # If your C library or build/target environment doesn't support XATTRs then
 # comment out the next line to build Mksquashfs and Unsquashfs without XATTR
 # support
-XATTR_SUPPORT = 1
+#XATTR_SUPPORT = 1
 
 # Select whether you wish xattrs to be stored by Mksquashfs and extracted
 # by Unsquashfs by default.  If selected users can disable xattr support by
@@ -112,7 +112,7 @@ XATTR_SUPPORT = 1
 #
 # If unselected, Mksquashfs/Unsquashfs won't store and extract xattrs by
 # default.  Users can enable xattrs by using the -xattrs option.
-XATTR_DEFAULT = 1
+#XATTR_DEFAULT = 1
 
 
 ###############################################
@@ -364,12 +364,15 @@ YEAR := $(firstword $(subst /, , $(DATE)
 
 CFLAGS += -DVERSION=\"$(VERSION)\" -DDATE=\"$(DATE)\" -DYEAR=\"$(YEAR)\"
 
+%.lo : %.c
+	$(LIBTOOL) --mode=compile --tag=CC $(CC) -o $@ -c $(CFLAGS) $(CPPFLAGS) $<
+
 .PHONY: all
 all: mksquashfs unsquashfs
 
-mksquashfs: $(MKSQUASHFS_OBJS)
-	$(CC) $(LDFLAGS) $(EXTRA_LDFLAGS) $(MKSQUASHFS_OBJS) $(LIBS) -o $@
-	ln -sf mksquashfs sqfstar
+mksquashfs: $(MKSQUASHFS_OBJS:.o=.lo)
+	$(LIBTOOL) --tag=CC --mode=link $(CC) -o $@ $(MKSQUASHFS_OBJS:.o=.lo) \
+		$(LDFLAGS) $(EXTRA_LDFLAGS) $(LIBS)
 
 mksquashfs.o: Makefile mksquashfs.c squashfs_fs.h squashfs_swap.h mksquashfs.h \
 	sort.h pseudo.h compressor.h xattr.h action.h mksquashfs_error.h progressbar.h \
@@ -428,9 +431,9 @@ lz4_wrapper.o: lz4_wrapper.c squashfs_fs
 
 xz_wrapper.o: xz_wrapper.c squashfs_fs.h xz_wrapper.h compressor.h
 
-unsquashfs: $(UNSQUASHFS_OBJS)
-	$(CC) $(LDFLAGS) $(EXTRA_LDFLAGS) $(UNSQUASHFS_OBJS) $(LIBS) -o $@
-	ln -sf unsquashfs sqfscat
+unsquashfs: $(UNSQUASHFS_OBJS:.o=.lo)
+	$(LIBTOOL) --tag=CC --mode=link $(CC) -o $@ $(UNSQUASHFS_OBJS:.o=.lo) \
+	$(LDFLAGS) $(EXTRA_LDFLAGS) $(LIBS)
 
 unsquashfs.o: unsquashfs.h unsquashfs.c squashfs_fs.h squashfs_swap.h \
 	squashfs_compat.h xattr.h read_fs.h compressor.h unsquashfs_error.h