OS X: Enable rpath support on Mac OS X when find_library() is used.

Tests/MacRuntimePath/A/CMakeLists.txt

@@ -14,6 +14,10 @@ set_target_properties(shared2 PROPERTIES
 add_library(framework SHARED framework.cpp framework.h)
 set_target_properties(framework PROPERTIES MACOSX_RPATH 1 FRAMEWORK 1)
 
+# another framework
+add_library(framework2 SHARED framework2.cpp framework2.h)
+set_target_properties(framework2 PROPERTIES MACOSX_RPATH 1 FRAMEWORK 1)
+
 # executable to test a shared library dependency with install rpaths
 add_executable(test1 test1.cpp)
 target_link_libraries(test1 shared)
@@ -60,4 +64,5 @@ export(TARGETS shared shared2 framework FILE "${CMAKE_CURRENT_BINARY_DIR}/exp.cm
 install(TARGETS shared EXPORT MyExport DESTINATION lib)
 install(TARGETS shared2 EXPORT MyExport DESTINATION lib2)
 install(TARGETS framework EXPORT MyExport DESTINATION lib-fw)
+install(TARGETS framework2 EXPORT MyExport DESTINATION lib-fw2)
 install(EXPORT MyExport DESTINATION lib FILE exp.cmake)

Tests/MacRuntimePath/A/framework2.cpp

@@ -0,0 +1,8 @@
+
+#include "framework2.h"
+#include "stdio.h"
+
+void framework2()
+{
+  printf("framework 2\n");
+}

Tests/MacRuntimePath/A/framework2.h

@@ -0,0 +1,17 @@
+
+#ifndef framework2_h
+#define framework2_h
+
+#ifdef WIN32
+# ifdef framework2_EXPORTS
+#  define FRAMEWORK2_EXPORT __declspec(dllexport)
+# else
+#  define FRAMEWORK2_EXPORT __declspec(dllimport)
+# endif
+#else
+# define FRAMEWORK2_EXPORT
+#endif
+
+void FRAMEWORK2_EXPORT framework2();
+
+#endif

Tests/MacRuntimePath/B/CMakeLists.txt

@@ -9,7 +9,8 @@ add_executable(testb ${MacRuntimePath_B_SOURCE_DIR}/../A/test3.cpp)
 target_link_libraries(testb shared framework)
 
 # test link with rpath enabled library by filename
-target_link_libraries(testb $<TARGET_LINKER_FILE:shared2> framework)
+find_library(fw2 NAMES framework2 HINTS ${MacRuntimePath_B_BINARY_DIR}/../Root/lib-fw2)
+target_link_libraries(testb $<TARGET_LINKER_FILE:shared2> ${fw2})
 
 add_custom_target(testb_run ALL
   COMMAND testb