From dc107107f73942574a0b2d1d9c1edd05b0ff1796 Mon Sep 17 00:00:00 2001
From: Yann Collet <yann.collet.73@gmail.com>
Date: Sun, 20 Jul 2014 17:18:48 +0200
Subject: Added : pkg-config (issue 135)

---
 Makefile     | 20 ++++++++++++++++----
 liblz4.pc.in | 14 ++++++++++++++
 2 files changed, 30 insertions(+), 4 deletions(-)
 create mode 100644 liblz4.pc.in

diff --git a/Makefile b/Makefile
index 28a0bfc..f9775db 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,8 @@
 # ################################################################
 
 # Version numbers
-export RELEASE=rc120
+VERSION=120
+export RELEASE=r$(VERSION)
 LIBVER_MAJOR=1
 LIBVER_MINOR=3
 LIBVER_PATCH=0
@@ -101,19 +102,29 @@ liblz4: lz4.c lz4hc.c
 	@ln -sf $@.$(SHARED_EXT_VER) $@.$(SHARED_EXT)
 
 clean:
-	@rm -f core *.o *.a *.$(SHARED_EXT) *.$(SHARED_EXT).* $(DISTRIBNAME) *.sha1
+	@rm -f core *.o *.a *.$(SHARED_EXT) *.$(SHARED_EXT).* $(DISTRIBNAME) *.sha1 liblz4.pc
 	@cd $(PRGDIR); $(MAKE) clean
 	@echo Cleaning completed
 
 
+#------------------------------------------------------------------------
 #make install option is designed for Linux & OSX targets only
+
 ifneq (,$(filter $(shell uname),Linux Darwin))
 
-install: liblz4
-	@install -d -m 755 $(DESTDIR)$(LIBDIR)/ $(DESTDIR)$(INCLUDEDIR)/
+liblz4.pc: liblz4.pc.in Makefile
+	sed -e 's|@PREFIX@|$(PREFIX)|' \
+            -e 's|@LIBDIR@|$(LIBDIR)|' \
+            -e 's|@INCLUDEDIR@|$(INCLUDEDIR)|' \
+            -e 's|@VERSION@|$(VERSION)|' \
+             $< >$@
+
+install: liblz4 liblz4.pc
+	@install -d -m 755 $(DESTDIR)$(LIBDIR)/pkgconfig/ $(DESTDIR)$(INCLUDEDIR)/
 	@install -m 755 liblz4.$(SHARED_EXT_VER) $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_VER)
 	@cp -a liblz4.$(SHARED_EXT_MAJOR) $(DESTDIR)$(LIBDIR)
 	@cp -a liblz4.$(SHARED_EXT) $(DESTDIR)$(LIBDIR)
+	@cp -a liblz4.pc $(DESTDIR)$(LIBDIR)/pkgconfig/
 	@install -m 644 liblz4.a $(DESTDIR)$(LIBDIR)/liblz4.a
 	@install -m 644 lz4.h $(DESTDIR)$(INCLUDEDIR)/lz4.h
 	@install -m 644 lz4hc.h $(DESTDIR)$(INCLUDEDIR)/lz4hc.h
@@ -123,6 +134,7 @@ install: liblz4
 uninstall:
 	rm -f $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT)
 	rm -f $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_MAJOR)
+	rm -f $(DESTDIR)$(LIBDIR)/pkgconfig/liblz4.pc
 	[ -x $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_VER) ] && rm -f $(DESTDIR)$(LIBDIR)/liblz4.$(SHARED_EXT_VER)
 	[ -f $(DESTDIR)$(LIBDIR)/liblz4.a ] && rm -f $(DESTDIR)$(LIBDIR)/liblz4.a
 	[ -f $(DESTDIR)$(INCLUDEDIR)/lz4.h ] && rm -f $(DESTDIR)$(INCLUDEDIR)/lz4.h
diff --git a/liblz4.pc.in b/liblz4.pc.in
new file mode 100644
index 0000000..0d05152
--- /dev/null
+++ b/liblz4.pc.in
@@ -0,0 +1,14 @@
+#   LZ4 - Fast LZ compression algorithm
+#   Copyright (C) 2011-2014, Yann Collet.
+#   BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+
+prefix=@PREFIX@
+libdir=@LIBDIR@
+includedir=@INCLUDEDIR@
+
+Name: lz4
+Description: fast lossless compression algorithm library
+URL: http://code.google.com/p/lz4/
+Version: @VERSION@
+Libs: -L@LIBDIR@ -llz4
+Cflags: -I@INCLUDEDIR@
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