From b1471da5ac60520836ddea3462520e6edb18f99a Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Tue, 11 Feb 2014 15:46:38 -0800
Subject: [PATCH] fix libzmq.pc generation under cmake

The ${libdir} was getting replaced/removed by configure_file() making pkg-config give bad flags: -L -lzmq
My fix was to add @ONLY to configure_file() so ${} style pkg-config substitutions are left alone.
In addition, I put the other typical ${} substitutions back into the libzmq.pc, since its now safe.
---
 CMakeLists.txt         | 2 +-
 src/libzmq.pc.cmake.in | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b93c1061..173e8987 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -428,7 +428,7 @@ endforeach()
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/builds/cmake/platform.hpp.in ${CMAKE_CURRENT_BINARY_DIR}/platform.hpp)
 list(APPEND sources ${CMAKE_CURRENT_BINARY_DIR}/platform.hpp)
 
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/libzmq.pc.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libzmq.pc)
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/libzmq.pc.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libzmq.pc @ONLY)
 set(zmq-pkgconfig ${CMAKE_CURRENT_BINARY_DIR}/libzmq.pc)
 
 if(NOT ZMQ_BUILD_FRAMEWORK)
diff --git a/src/libzmq.pc.cmake.in b/src/libzmq.pc.cmake.in
index ac25909b..4f57939d 100644
--- a/src/libzmq.pc.cmake.in
+++ b/src/libzmq.pc.cmake.in
@@ -1,10 +1,10 @@
 prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=@CMAKE_INSTALL_PREFIX@
-libdir=@CMAKE_INSTALL_PREFIX@/lib
-includedir=@CMAKE_INSTALL_PREFIX@/include
+exec_prefix=${prefix}
+libdir=${prefix}/lib
+includedir=${prefix}/include
 
 Name: libzmq
 Description: 0MQ c++ library
 Version: @ZMQ_VERSION_MAJOR@.@ZMQ_VERSION_MINOR@.@ZMQ_VERSION_PATCH@
 Libs: -L${libdir} -lzmq
-Cflags: -I@CMAKE_INSTALL_PREFIX@/include
+Cflags: -I${includedir}