From fcd5e2608974d282dc8492facad3026273c1aded Mon Sep 17 00:00:00 2001
From: uditDewan <udit.dewan21@gmail.com>
Date: Sat, 18 Jul 2026 14:59:31 -0400
Subject: [PATCH] Fix exported include paths for absolute
 CMAKE_INSTALL_INCLUDEDIR

The INSTALL_INTERFACE include directory was written as
$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}, which unconditionally
prepends the install prefix. When CMAKE_INSTALL_INCLUDEDIR is an
absolute path, the exported GTestTargets.cmake ends up with an invalid
doubled path such as "/usr/local//usr/local/include", and find_package
consumers fail at configure time with "Imported target includes
non-existent path".

Relative paths inside $<INSTALL_INTERFACE:...> are already interpreted
relative to the installation prefix, so the explicit $<INSTALL_PREFIX>/
prefix is redundant for relative values and wrong for absolute ones.
Dropping it keeps the exported path identical for relative values
(${_IMPORT_PREFIX}/include) and uses absolute values as-is.

Fixes #4817
---
 googlemock/CMakeLists.txt | 4 ++--
 googletest/CMakeLists.txt | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/googlemock/CMakeLists.txt b/googlemock/CMakeLists.txt
index 99b2411f3..33ec96363 100644
--- a/googlemock/CMakeLists.txt
+++ b/googlemock/CMakeLists.txt
@@ -105,10 +105,10 @@ endif()
 string(REPLACE ";" "$<SEMICOLON>" dirs "${gmock_build_include_dirs}")
 target_include_directories(gmock SYSTEM INTERFACE
   "$<BUILD_INTERFACE:${dirs}>"
-  "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
+  "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
 target_include_directories(gmock_main SYSTEM INTERFACE
   "$<BUILD_INTERFACE:${dirs}>"
-  "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
+  "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
 
 ########################################################################
 #
diff --git a/googletest/CMakeLists.txt b/googletest/CMakeLists.txt
index 2e5388945..64c0510cb 100644
--- a/googletest/CMakeLists.txt
+++ b/googletest/CMakeLists.txt
@@ -140,10 +140,10 @@ set_target_properties(gtest_main PROPERTIES VERSION ${GOOGLETEST_VERSION})
 string(REPLACE ";" "$<SEMICOLON>" dirs "${gtest_build_include_dirs}")
 target_include_directories(gtest SYSTEM INTERFACE
   "$<BUILD_INTERFACE:${dirs}>"
-  "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
+  "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
 target_include_directories(gtest_main SYSTEM INTERFACE
   "$<BUILD_INTERFACE:${dirs}>"
-  "$<INSTALL_INTERFACE:$<INSTALL_PREFIX>/${CMAKE_INSTALL_INCLUDEDIR}>")
+  "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
 if(CMAKE_SYSTEM_NAME MATCHES "QNX" AND CMAKE_SYSTEM_VERSION VERSION_GREATER_EQUAL 7.1)
   target_link_libraries(gtest PUBLIC regex)
 endif()