From f2579c4984615609847759cbd5883b8db821b1ba Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <mailroxas@gmail.com>
Date: Tue, 30 Oct 2018 21:02:52 +0200
Subject: Makefile: soversion symlinks and pkg-config

---
 Makefile | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 3d31d75..25f9ca6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,7 @@
 PREFIX ?= /usr/local
 libdir ?= /lib
 includedir ?= /include
+pkgconfigdir ?= /lib/pkgconfig
 
 MAKEFLAGS += --no-builtin-rules
 
@@ -12,26 +13,38 @@ override CFLAGS += -std=c11 $(WARNINGS)
 override CPPFLAGS += -Iinclude
 
 libs = libasound.so
+libsymlinks = libasound.so.2 libasound.so.2.0.0
+pkgconfigs = alsa.pc
 all: $(libs)
 
 %.so:
-	$(LINK.c) $(filter %.c,$^) $(LDLIBS) -fPIC -shared -o $@
+	$(LINK.c) $(filter %.c,$^) $(LDLIBS) -fPIC -shared -Wl,-soname,$@.$(soabi).$(sompatch) -o $@.$(soabi).$(sompatch)
+	ln -fs $@.$(soabi).$(sompatch) $@.$(soabi)
+	ln -fs $@.$(soabi).$(sompatch) $@
 
+%.pc: %.pc.in
+	m4 -DINCLUDEDIR="$(PREFIX)$(includedir)" -DLIBDIR="$(PREFIX)$(libdir)" $^ > $@
+
+libasound.so: private override soabi=2
+libasound.so: private override sompatch=0.0
 libasound.so: private override CPPFLAGS += -D_POSIX_SOURCE
 libasound.so: private override CFLAGS += -Wno-unused-parameter -Wno-deprecated-declarations
 libasound.so: private override LDFLAGS += -Wl,--version-script=libasound.map
 libasound.so: private override LDLIBS += -lsndio
-libasound.so: libasound.c libasound.map stubs.h symversioning-hell.h
+libasound.so: libasound.c libasound.map stubs.h symversioning-hell.h alsa.pc
 
-install-lib: $(libs)
+install-lib: $(libs) $(libsymlinks)
 	install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(libdir)"
 
+install-pkgconfig: $(pkgconfigs)
+	install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(pkgconfigdir)"
+
 install-include:
 	install -Dm755 -d include/alsa "$(DESTDIR)$(PREFIX)$(includedir)"
 
-install: install-lib install-include
+install: install-lib install-pkgconfig install-include
 
 clean:
-	$(RM) $(libs)
+	$(RM) $(libs) $(libsymlinks) $(pkgconfigs)
 
 .PHONY: all clean install
-- 
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