From c207ce6bc6893a00e6ebe1fa30d4401580f7097f Mon Sep 17 00:00:00 2001
From: Dominique Leuenberger <dimstar@opensuse.org>
Date: Thu, 10 Sep 2015 16:11:10 +0200
Subject: [PATCH] pkg-config: fix directory references in libgit2.pc

Before:
libdir=/usr//usr/lib64
includedir=/usr//usr/include

After:
libdir=/usr/lib64
includedir=/usr/include

(note the duplication of /usr in the before case)
---
 CMakeLists.txt | 17 +++++++++++++++++
 libgit2.pc.in  |  5 +++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 293153f..0ed63c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -99,6 +99,23 @@ SET(BIN_INSTALL_DIR bin CACHE PATH "Where to install binaries to.")
 SET(LIB_INSTALL_DIR lib CACHE PATH "Where to install libraries to.")
 SET(INCLUDE_INSTALL_DIR include CACHE PATH "Where to install headers to.")
 
+# Set a couple variables to be substituted inside the .pc file.
+# We can't just use LIB_INSTALL_DIR in the .pc file, as passing them as absolue
+# or relative paths is both valid and supported by cmake.
+set (PKGCONFIG_PREFIX ${CMAKE_INSTALL_PREFIX})
+
+if(IS_ABSOLUTE ${LIB_INSTALL_DIR})
+  set (PKGCONFIG_LIBDIR ${LIB_INSTALL_DIR})
+else(IS_ABSOLUTE ${LIB_INSTALL_DIR})
+  set (PKGCONFIG_LIBDIR "\${prefix}/${LIB_INSTALL_DIR}")
+endif (IS_ABSOLUTE ${LIB_INSTALL_DIR})
+
+if(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
+  set (PKGCONFIG_INCLUDEDIR ${INCLUDE_INSTALL_DIR})
+else(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
+  set (PKGCONFIG_INCLUDEDIR "\${prefix}/${INCLUDE_INSTALL_DIR}")
+endif(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
+
 FUNCTION(TARGET_OS_LIBRARIES target)
 	IF(WIN32)
 		TARGET_LINK_LIBRARIES(${target} ws2_32)
diff --git a/libgit2.pc.in b/libgit2.pc.in
index 3d825a4..880266a 100644
--- a/libgit2.pc.in
+++ b/libgit2.pc.in
@@ -1,5 +1,6 @@
-libdir=@CMAKE_INSTALL_PREFIX@/@LIB_INSTALL_DIR@
-includedir=@CMAKE_INSTALL_PREFIX@/@INCLUDE_INSTALL_DIR@
+prefix=@PKGCONFIG_PREFIX@
+libdir=@PKGCONFIG_LIBDIR@
+includedir=@PKGCONFIG_INCLUDEDIR@
 
 Name: libgit2
 Description: The git library, take 2
-- 
2.5.0