From 3c1973e9ef647cafbffb42760a905e79966f43bd Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Thu, 8 Apr 2021 21:45:55 +0200
Subject: Add build of dynamically linked library
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 .gitignore    |  2 ++
 Makefile      | 47 ++++++++++++++++++++++++++++++++++++++---------
 mk/linux.mk   |  4 ++++
 mk/macos.mk   |  4 ++++
 mk/windows.mk |  4 ++++
 5 files changed, 52 insertions(+), 9 deletions(-)
 create mode 100644 mk/linux.mk
 create mode 100644 mk/macos.mk
 create mode 100644 mk/windows.mk

diff --git a/.gitignore b/.gitignore
index f0ff639..dc724f5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,5 +6,7 @@
 *.so
 *.su
 *.out
+*.dll
+*.dylib
 /test
 /interactive-test
diff --git a/Makefile b/Makefile
index b6913f6..59cd5b4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,44 +1,73 @@
 .POSIX:
 
+LIB_MAJOR = 1
+LIB_MINOR = 0
+LIB_VERSION = $(LIB_MAJOR).$(LIB_MINOR)
+
+
 CONFIGFILE = config.mk
 include $(CONFIGFILE)
 
+OS = linux
+# Linux:   linux
+# Mac OS:  macos
+# Windows: windows 
+include mk/$(OS).mk
 
-OBJ =\
-	interactive-test.o\
-	libterminput.o
+
+
+LOBJ =\
+	libterminput.lo
 
 HDR =\
 	libterminput.h
 
+OBJ =\
+	interactive-test.o\
+	$(LOBJ:.lo=.o)
+
 
-all: libterminput.a interactive-test
+all: libterminput.a libterminput.$(LIBEXT) interactive-test
 $(OBJ): $(@:.o=.c) $(HDR)
+$(LOBJ): $(@:.lo=.c) $(HDR)
 
 .c.o:
 	$(CC) -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
 
+.c.lo:
+	$(CC) -fPIC -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
+
 .o.a:
+	-rm -f -- $@
 	$(AR) rc $@ $<
 	$(AR) -s $@
 
+.lo.$(LIBEXT):
+	$(CC) $(LIBFLAGS) $(LDFLAGS_METHODS) -o $@ $< $(LDFLAGS)
+
 interactive-test: interactive-test.o libterminput.a
 	$(CC) -o $@ interactive-test.o libterminput.a $(LDFLAGS)
 
-install: libterminput.a
+install: libterminput.a libterminput.$(LIBEXT)
 	mkdir -p -- "$(DESTDIR)$(PREFIX)/lib"
 	mkdir -p -- "$(DESTDIR)$(PREFIX)/include"
 	cp -- libterminput.a "$(DESTDIR)$(PREFIX)/lib/"
 	cp -- libterminput.h "$(DESTDIR)$(PREFIX)/include/"
+	cp -- libterminput.$(LIBEXT) "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBMINOREXT)"
+	ln -sf -- libterminput.$(LIBMINOREXT) "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBMAJOREXT)"
+	ln -sf -- libterminput.$(LIBMAJOREXT) "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBEXT)"
 
 uninstall:
-	rm -- "$(DESTDIR)$(PREFIX)/lib/libterminput.a"
-	rm -- "$(DESTDIR)$(PREFIX)/include/libterminput.h"
+	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBMAJOREXT)"
+	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBMINOREXT)"
+	-rm -f -- "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBEXT)"
+	-rm -rf -- "$(DESTDIR)$(PREFIX)/lib/libterminput.a"
+	-rm -rf -- "$(DESTDIR)$(PREFIX)/include/libterminput.h"
 
 clean:
-	-rm -f -- *.o *.a interactive-test
+	-rm -f -- *.o *.a *.lo *.so *.su *.dll *.dylib interactive-test
 
 .SUFFIXES:
-.SUFFIXES: .a .o .c
+.SUFFIXES: .a .o .lo .c .$(LIBEXT)
 
 .PHONY: all install uninstall clean
diff --git a/mk/linux.mk b/mk/linux.mk
new file mode 100644
index 0000000..71922e7
--- /dev/null
+++ b/mk/linux.mk
@@ -0,0 +1,4 @@
+LIBEXT      = so
+LIBFLAGS    = -shared -Wl,-soname,libterminput.$(LIBEXT).$(LIB_MAJOR)
+LIBMAJOREXT = $(LIBEXT).$(LIB_MAJOR)
+LIBMINOREXT = $(LIBEXT).$(LIB_VERSION)
diff --git a/mk/macos.mk b/mk/macos.mk
new file mode 100644
index 0000000..bd92de6
--- /dev/null
+++ b/mk/macos.mk
@@ -0,0 +1,4 @@
+LIBEXT      = dylib
+LIBFLAGS    = -dynamiclib
+LIBMAJOREXT = $(LIB_MAJOR).$(LIBEXT)
+LIBMINOREXT = $(LIB_VERSION).$(LIBEXT)
diff --git a/mk/windows.mk b/mk/windows.mk
new file mode 100644
index 0000000..e9602e1
--- /dev/null
+++ b/mk/windows.mk
@@ -0,0 +1,4 @@
+LIBEXT      = dll
+LIBFLAGS    = -mdll
+LIBMAJOREXT = $(LIB_MAJOR).$(LIBEXT)
+LIBMINOREXT = $(LIB_VERSION).$(LIBEXT)
-- 
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