libexec: don't build it on macos

Author: rizsotto

source/intercept-library/CMakeLists.txt

@@ -1,2 +1,4 @@
-add_subdirectory(executable)
-add_subdirectory(library)
+if (SUPPORT_PRELOAD)
+    add_subdirectory(executable)
+    add_subdirectory(library)
+endif()

source/intercept-library/executable/CMakeLists.txt

@@ -35,11 +35,9 @@ set_target_properties(er PROPERTIES
         LINKER_LANGUAGE "C"
         )
 
-if (SUPPORT_PRELOAD)
-    include(GNUInstallDirs)
-    install(TARGETS er
-            RUNTIME DESTINATION ${CMAKE_INSTALL_LIBEXECDIR})
-endif()
+include(GNUInstallDirs)
+install(TARGETS er
+        RUNTIME DESTINATION ${CMAKE_INSTALL_LIBEXECDIR})
 
 # Create unit test
 if (ENABLE_UNIT_TESTS)

source/intercept-library/library/CMakeLists.txt

@@ -43,11 +43,9 @@ if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
     set_target_properties(exec PROPERTIES LINK_FLAGS "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/libexec.version")
 endif ()
 
-if (SUPPORT_PRELOAD)
-    include(GNUInstallDirs)
-    install(TARGETS exec
-            LIBRARY DESTINATION ${CMAKE_INSTALL_LIBEXECDIR})
-endif ()
+include(GNUInstallDirs)
+install(TARGETS exec
+        LIBRARY DESTINATION ${CMAKE_INSTALL_LIBEXECDIR})
 
 # Create unit test.
 if (ENABLE_UNIT_TESTS)