From c18cacf683d1b5ae6256d71fb5076cae02fa9daf Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Sat, 19 Feb 2022 22:09:49 +0100
Subject: Improve makefile
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 Makefile      | 45 ++++++++++++++++++++++++++++++++++-----------
 config.mk     |  6 +++---
 mk/linux.mk   |  7 +++++++
 mk/macos.mk   |  7 +++++++
 mk/windows.mk |  7 +++++++
 5 files changed, 58 insertions(+), 14 deletions(-)
 create mode 100644 mk/linux.mk
 create mode 100644 mk/macos.mk
 create mode 100644 mk/windows.mk

diff --git a/Makefile b/Makefile
index 61b281b..80d433c 100644
--- a/Makefile
+++ b/Makefile
@@ -3,26 +3,42 @@
 CONFIGFILE = config.mk
 include $(CONFIGFILE)
 
+OS = linux
+# Linux:   linux
+# Mac OS:  macos
+# Windows: windows
+include mk/$(OS).mk
+
+LIB_MAJOR = 1
+LIB_MINOR = 0
+LIB_VERSION = $(LIB_MAJOR).$(LIB_MINOR)
+
+
 OBJ =\
 	libparsepsf.o
 
-LIB_HDR =\
+HDR =\
 	libparsepsf.h
 
-HDR =\
-	$(LIB_HDR)
 
-all: libparsepsf.a demo
-$(OBJ): $(@:.o=.c) $(HDR)
-libparsepsf.o: libparsepsf.c $(LIB_HDR)
+all: libparsepsf.a libparsepsf.$(LIBEXT) demo
+$(OBJ): $(HDR)
+$(LOBJ): $(HDR)
+
+.c.o:
+	$(CC) -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
+
+.c.lo:
+	$(CC) -fPIC -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
+
+libparsepsf.$(LIBEXT): $(LOBJ)
+	$(CC) $(LIBFLAGS) -o $@ $(LOBJ) $(LDFLAGS)
 
 libparsepsf.a: $(OBJ)
+	-rm -f -- $@
 	$(AR) rc $@ $(OBJ)
 	$(AR) ts $@ > /dev/null
 
-.c.o:
-	$(CC) -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
-
 demo: demo.o libparsepsf.a
 	$(CC) -o $@ $@.o libparsepsf.a $(LDFLAGS)
 
@@ -30,16 +46,23 @@ install: libparsepsf.a
 	mkdir -p -- "$(DESTDIR)$(PREFIX)/lib"
 	mkdir -p -- "$(DESTDIR)$(PREFIX)/include"
 	cp -- libparsepsf.a "$(DESTDIR)$(PREFIX)/lib"
+	cp -- libparsepsf.$(LIBEXT) "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBMINOREXT)"
+	$(FIX_INSTALL_NAME) "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBMINOREXT)"
+	ln -sf -- "libsha1.$(LIBMINOREXT)" "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBMAJOREXT)"
+	ln -sf -- "libsha1.$(LIBMAJOREXT)" "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBEXT)"
 	cp -- libparsepsf.h "$(DESTDIR)$(PREFIX)/include"
 
 uninstall:
 	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libparsepsf.a"
+	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBEXT)"
+	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBMAJOREXT)"
+	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libparsepsf.$(LIBMINOREXT)"
 	-rm -f -- "$(DESTDIR)$(PREFIX)/include/libparsepsf.h"
 
 clean:
 	-rm -f -- *.o *.lo *.su *.a *.so *.so.* demo
 
 .SUFFIXES:
-.SUFFIXES: .c .o
+.SUFFIXES: .lo .o .c
 
-.PHONY: all install uninstall clean
+.PHONY: all check install uninstall clean
diff --git a/config.mk b/config.mk
index 941bc29..166cd0c 100644
--- a/config.mk
+++ b/config.mk
@@ -1,8 +1,8 @@
 PREFIX    = /usr
 MANPREFIX = $(PREFIX)/share/man
 
+CC = c99
+
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
-CFLAGS   = -std=c99 -Wall
+CFLAGS   = -Wall
 LDFLAGS  = -lgrapheme
-
-CC = cc
diff --git a/mk/linux.mk b/mk/linux.mk
new file mode 100644
index 0000000..038120b
--- /dev/null
+++ b/mk/linux.mk
@@ -0,0 +1,7 @@
+LIBEXT   = so
+LIBFLAGS = -shared -Wl,-soname,libparsepsf.$(LIBEXT).$(LIB_MAJOR)
+
+LIBMAJOREXT = $(LIBEXT).$(LIB_MAJOR)
+LIBMINOREXT = $(LIBEXT).$(LIB_MAJOR).$(LIB_MINOR)
+
+FIX_INSTALL_NAME = :
diff --git a/mk/macos.mk b/mk/macos.mk
new file mode 100644
index 0000000..18d9433
--- /dev/null
+++ b/mk/macos.mk
@@ -0,0 +1,7 @@
+LIBEXT   = dylib
+LIBFLAGS = -dynamiclib -Wl,-compatibility_version,$(LIB_MAJOR) -Wl,-current_version,$(LIB_VERSION)
+
+LIBMAJOREXT = $(LIB_MAJOR).$(LIBEXT)
+LIBMINOREXT = $(LIB_MAJOR).$(LIB_MINOR).$(LIBEXT)
+
+FIX_INSTALL_NAME = install_name_tool -id "$(PREFIX)/lib/libparsepsf.$(LIBMAJOREXT)"
diff --git a/mk/windows.mk b/mk/windows.mk
new file mode 100644
index 0000000..304b6be
--- /dev/null
+++ b/mk/windows.mk
@@ -0,0 +1,7 @@
+LIBEXT   = dll
+LIBFLAGS = -shared
+
+LIBMAJOREXT = $(LIB_MAJOR).$(LIBEXT)
+LIBMINOREXT = $(LIB_MAJOR).$(LIB_MINOR).$(LIBEXT)
+
+FIX_INSTALL_NAME = :
-- 
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