$NetBSD: patch-Makefile,v 1.9 2024/09/19 09:01:15 nia Exp $

- Libtoolize.
- Allow override of PREFIX.
- Allow separate installation of utilities.
- Move quantize.c back into libgif.so to fix various library users.

--- Makefile.orig	2024-02-19 01:01:50.000000000 +0000
+++ Makefile
@@ -8,13 +8,13 @@
 #
 OFLAGS = -O0 -g
 OFLAGS  = -O2
-CFLAGS  = -std=gnu99 -fPIC -Wall -Wno-format-truncation $(OFLAGS)
+CFLAGS += -std=gnu99 -fPIC
 
 SHELL = /bin/sh
 TAR = tar
 INSTALL = install
 
-PREFIX = /usr/local
+PREFIX?= /usr/local
 BINDIR = $(PREFIX)/bin
 INCDIR = $(PREFIX)/include
 LIBDIR = $(PREFIX)/lib
@@ -29,13 +29,13 @@ LIBPOINT=0
 LIBVER=$(LIBMAJOR).$(LIBMINOR).$(LIBPOINT)
 
 SOURCES = dgif_lib.c egif_lib.c gifalloc.c gif_err.c gif_font.c \
-	gif_hash.c openbsd-reallocarray.c
+	gif_hash.c openbsd-reallocarray.c quantize.c
 HEADERS = gif_hash.h  gif_lib.h  gif_lib_private.h
-OBJECTS = $(SOURCES:.c=.o)
+OBJECTS = $(SOURCES:.c=.lo)
 
-USOURCES = qprintf.c quantize.c getarg.c 
+USOURCES = qprintf.c getarg.c 
 UHEADERS = getarg.h
-UOBJECTS = $(USOURCES:.c=.o)
+UOBJECTS = $(USOURCES:.c=.lo)
 
 UNAME:=$(shell uname)
 
@@ -61,7 +61,7 @@ UTILS = $(INSTALLABLE) \
 	gifsponge \
 	gifwedge
 
-LDLIBS=libgif.a -lm
+LDLIBS=-lm
 
 MANUAL_PAGES = \
 	doc/gif2rgb.xml \
@@ -72,45 +72,30 @@ MANUAL_PAGES = \
 	doc/giftext.xml \
 	doc/giftool.xml
 
-SOEXTENSION	= so
+SOEXTENSION	= la
 LIBGIFSO	= libgif.$(SOEXTENSION)
 LIBGIFSOMAJOR	= libgif.$(SOEXTENSION).$(LIBMAJOR)
 LIBGIFSOVER	= libgif.$(SOEXTENSION).$(LIBVER)
 LIBUTILSO	= libutil.$(SOEXTENSION)
 LIBUTILSOMAJOR	= libutil.$(SOEXTENSION).$(LIBMAJOR)
-ifeq ($(UNAME), Darwin)
-SOEXTENSION	= dylib
-LIBGIFSO        = libgif.$(SOEXTENSION)
-LIBGIFSOMAJOR   = libgif.$(LIBMAJOR).$(SOEXTENSION)
-LIBGIFSOVER	= libgif.$(LIBVER).$(SOEXTENSION)
-LIBUTILSO	= libutil.$(SOEXTENSION)
-LIBUTILSOMAJOR	= libutil.$(LIBMAJOR).$(SOEXTENSION)
-endif
 
-all: $(LIBGIFSO) libgif.a $(LIBUTILSO) libutil.a $(UTILS)
-ifeq ($(UNAME), Darwin)
-else
-	$(MAKE) -C doc
-endif
+all: $(LIBGIFSO) $(LIBUTILSO)
 
-$(UTILS):: libgif.a libutil.a
+.SUFFIXES: .lo
 
-$(LIBGIFSO): $(OBJECTS) $(HEADERS)
-ifeq ($(UNAME), Darwin)
-	$(CC) $(CFLAGS) -dynamiclib -current_version $(LIBVER) $(OBJECTS) -o $(LIBGIFSO)
-else
-	$(CC) $(CFLAGS) -shared $(LDFLAGS) -Wl,-soname -Wl,$(LIBGIFSOMAJOR) -o $(LIBGIFSO) $(OBJECTS)
-endif
+.c.lo:
+	$(LIBTOOL) --tag=CC --mode=compile $(CC) $(CFLAGS) -c $<
+
+.libs/libgif.a: $(LIBGIFSO)
+.libs/libutil.a: $(LIBUTILSO)
 
-libgif.a: $(OBJECTS) $(HEADERS)
-	$(AR) rcs libgif.a $(OBJECTS)
+$(UTILS): .libs/libutil.a .libs/libgif.a
+
+$(LIBGIFSO): $(OBJECTS) $(HEADERS)
+	$(LIBTOOL) --mode=link --tag=CC $(CC) $(CFLAGS) $(LDFLAGS) -version-info $(LIBMAJOR):0:0 -rpath $(PREFIX)/lib -o $(LIBGIFSO) $(OBJECTS)
 
 $(LIBUTILSO): $(UOBJECTS) $(UHEADERS)
-ifeq ($(UNAME), Darwin)
-	$(CC) $(CFLAGS) -dynamiclib -current_version $(LIBVER) $(OBJECTS) -o $(LIBUTILSO)
-else
-	$(CC) $(CFLAGS) -shared $(LDFLAGS) -Wl,-soname -Wl,$(LIBUTILMAJOR) -o $(LIBUTILSO) $(UOBJECTS)
-endif
+	$(LIBTOOL) --mode=link --tag=CC $(CC) $(CFLAGS) $(LDFLAGS) -version-info $(LIBMAJOR):0:0 -rpath $(PREFIX)/lib -o $(LIBUTILSO) $(UOBJECTS)
 
 libutil.a: $(UOBJECTS) $(UHEADERS)
 	$(AR) rcs libutil.a $(UOBJECTS)
@@ -129,11 +114,7 @@ reflow:
 
 # Installation/uninstallation
 
-ifeq ($(UNAME), Darwin)
-install: all install-bin install-include install-lib
-else
 install: all install-bin install-include install-lib install-man
-endif
 
 install-bin: $(INSTALLABLE)
 	$(INSTALL) -d "$(DESTDIR)$(BINDIR)"
@@ -143,10 +124,7 @@ install-include:
 	$(INSTALL) -m 644 gif_lib.h "$(DESTDIR)$(INCDIR)"
 install-lib:
 	$(INSTALL) -d "$(DESTDIR)$(LIBDIR)"
-	$(INSTALL) -m 644 libgif.a "$(DESTDIR)$(LIBDIR)/libgif.a"
-	$(INSTALL) -m 755 $(LIBGIFSO) "$(DESTDIR)$(LIBDIR)/$(LIBGIFSOVER)"
-	ln -sf $(LIBGIFSOVER) "$(DESTDIR)$(LIBDIR)/$(LIBGIFSOMAJOR)"
-	ln -sf $(LIBGIFSOMAJOR) "$(DESTDIR)$(LIBDIR)/$(LIBGIFSO)"
+	$(LIBTOOL) --mode=install --tag=CC $(BSD_INSTALL_LIB) $(LIBGIFSO) "$(DESTDIR)$(LIBDIR)"
 install-man:
 	$(INSTALL) -d "$(DESTDIR)$(MANDIR)/man1"
 	$(INSTALL) -m 644 $(MANUAL_PAGES) "$(DESTDIR)$(MANDIR)/man1"