commit b19292e6b64263992cd049154015a6ef359473ef
author Dakota Hawkins <dakotahawkins@gmail.com> Thu Aug 23 01:42:34 2018 -0400
committer Dakota Hawkins <dakotahawkins@gmail.com> Fri Aug 24 16:51:55 2018 -0400
tree ad8e7aae5bf6fd8b2e9f868768a3ad798b46a723
parent 9c96f500a39df6915f8f1ab53b60be9889f1572b

Use `$<INSTALL_PREFIX>` in `target_include_directories`

To make sure packages are relocatable, use `$<INSTALL_PREFIX>` in
`$<INSTALL_INTERFACE:...>` `target_include_directories`.

`$<INSTALL_PREFIX>` was introduced in CMake 2.8.11, which is already
being checked for locally.

References:

- https://cmake.org/cmake/help/latest/manual/cmake-packages.7.html#id19
- https://github.com/robotology/how-to-export-cpp-library/blob/claudio/headeronly/src/LibTemplateCMake/CMakeLists.txt#L42

Signed-off-by: Dakota Hawkins <dakotahawkins@gmail.com>

googlemock/CMakeLists.txt

diff --git a/googlemock/CMakeLists.txt b/googlemock/CMakeLists.txt
index 195d254..8a8de1f 100644
--- a/googlemock/CMakeLists.txt
+++ b/googlemock/CMakeLists.txt
@@ -118,10 +118,10 @@
 if (DEFINED CMAKE_VERSION AND NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.11")
   target_include_directories(gmock SYSTEM INTERFACE
     "$<BUILD_INTERFACE:${gmock_build_include_dirs}>"
-    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
+    "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
   target_include_directories(gmock_main SYSTEM INTERFACE
     "$<BUILD_INTERFACE:${gmock_build_include_dirs}>"
-    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
+    "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
 endif()
 
 ########################################################################

googletest/CMakeLists.txt

diff --git a/googletest/CMakeLists.txt b/googletest/CMakeLists.txt
index 2ac9aa0..9ee7940 100644
--- a/googletest/CMakeLists.txt
+++ b/googletest/CMakeLists.txt
@@ -138,10 +138,10 @@
 if (DEFINED CMAKE_VERSION AND NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.11")
   target_include_directories(gtest SYSTEM INTERFACE
     "$<BUILD_INTERFACE:${gtest_build_include_dirs}>"
-    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
+    "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
   target_include_directories(gtest_main SYSTEM INTERFACE
     "$<BUILD_INTERFACE:${gtest_build_include_dirs}>"
-    $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
+    "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
 endif()
 target_link_libraries(gtest_main PUBLIC gtest)