Backport of
From ce720038ed40e4c4554e0d8c0e4e003834ed1652 Mon Sep 17 00:00:00 2001
From: Heiko Becker <heirecka@exherbo.org>
Date: Fri, 29 Nov 2013 20:53:46 +0100
Subject: [PATCH] Allow specifying a suffix of the libdir
To allow installing to lib32/64 e.g.


diff -ruN LibRaw-0.16.0-Beta1.orig/CMakeLists.txt LibRaw-0.16.0-Beta1/CMakeLists.txt
--- LibRaw-0.16.0-Beta1.orig/CMakeLists.txt	2013-12-23 14:36:05.569116564 +0100
+++ LibRaw-0.16.0-Beta1/CMakeLists.txt	2013-12-23 14:39:37.716121606 +0100
@@ -95,6 +95,8 @@
 # ==================================================================================================
 # General definitions rules
 
+SET(LIB_SUFFIX "" CACHE STRING "Define suffix of lib directory name (32/64)" )
+
 # To prevent warnings from M$ compiler
 IF(WIN32 AND MSVC)
     ADD_DEFINITIONS(-D_CRT_SECURE_NO_WARNINGS)
@@ -560,10 +562,10 @@
 # Configure and install data file for packaging.
 IF(NOT WIN32)
     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/cmake/data/libraw.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/libraw.pc @ONLY)
-    INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libraw.pc DESTINATION lib/pkgconfig)
+    INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libraw.pc DESTINATION lib${LIB_SUFFIX}/pkgconfig)
 
     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/cmake/data/libraw_r.pc.cmake ${CMAKE_CURRENT_BINARY_DIR}/libraw_r.pc @ONLY)
-    INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libraw_r.pc DESTINATION lib/pkgconfig)
+    INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libraw_r.pc DESTINATION lib${LIB_SUFFIX}/pkgconfig)
 
     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/cmake/data/libraw.lsm.cmake ${CMAKE_CURRENT_BINARY_DIR}/libraw.lsm)
 ENDIF()
@@ -584,14 +586,14 @@
 # Install Shared binary files.
 INSTALL(TARGETS raw
         RUNTIME DESTINATION bin
-        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+        LIBRARY DESTINATION lib${LIB_SUFFIX}
+        ARCHIVE DESTINATION lib${LIB_SUFFIX}
        )
 
 INSTALL(TARGETS raw_r
         RUNTIME DESTINATION bin
-        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-        ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+        LIBRARY DESTINATION lib${LIB_SUFFIX}
+        ARCHIVE DESTINATION lib${LIB_SUFFIX}
        )
 
 # Install find cmake script to the system for client applications.
@@ -633,8 +635,9 @@
 
     INSTALL(TARGETS ${_target}
             RUNTIME DESTINATION bin
-            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-            ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+            LIBRARY DESTINATION lib${LIB_SUFFIX}
+            ARCHIVE DESTINATION lib${LIB_SUFFIX}
+    )
 
 ENDMACRO(LIBRAW_BUILD_SAMPLES)