From: Michael Gottesman <mgottesman@apple.com>
Date: Wed, 29 Jun 2016 21:59:14 +0000 (+0000)
Subject: [cmake] Instead of just copying ClangConfig.cmake, configure it using ClangConfig... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4e19e514672a6a94019fde624a35d9653dd957d2;p=clang

[cmake] Instead of just copying ClangConfig.cmake, configure it using ClangConfig.cmake.in.

This will allow for cmake to expand variables in ClangConfig.cmake for
downstream users.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@274176 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/cmake/modules/CMakeLists.txt b/cmake/modules/CMakeLists.txt
index f0af3e9da7..0bd630ffce 100644
--- a/cmake/modules/CMakeLists.txt
+++ b/cmake/modules/CMakeLists.txt
@@ -3,20 +3,24 @@
 # the usual CMake convention seems to be ${Project}Targets.cmake.
 set(CLANG_INSTALL_PACKAGE_DIR lib${LLVM_LIBDIR_SUFFIX}/cmake/clang)
 set(clang_cmake_builddir "${CMAKE_BINARY_DIR}/${CLANG_INSTALL_PACKAGE_DIR}")
+
 get_property(CLANG_EXPORTS GLOBAL PROPERTY CLANG_EXPORTS)
 export(TARGETS ${CLANG_EXPORTS} FILE ${clang_cmake_builddir}/ClangTargets.cmake)
 
-# Install a <prefix>/lib/cmake/clang/ClangConfig.cmake file so that
-# find_package(Clang) works. Install the target list with it.
+# Generate ClangConfig.cmake for the build tree.
+configure_file(
+  ${CMAKE_CURRENT_SOURCE_DIR}/ClangConfig.cmake.in
+  ${clang_cmake_builddir}/ClangConfig.cmake
+  @ONLY)
+
+# Generate ClangConfig.cmake for the install tree.
+configure_file(
+  ${CMAKE_CURRENT_SOURCE_DIR}/ClangConfig.cmake.in
+  ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/ClangConfig.cmake
+  @ONLY)
+
 install(EXPORT ClangTargets DESTINATION ${CLANG_INSTALL_PACKAGE_DIR})
 
 install(FILES
-  ${CMAKE_CURRENT_SOURCE_DIR}/ClangConfig.cmake
+  ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/ClangConfig.cmake
   DESTINATION ${CLANG_INSTALL_PACKAGE_DIR})
-
-# Also copy ClangConfig.cmake to the build directory so that dependent projects
-# can build against a build directory of Clang more easily.
-configure_file(
-  ${CMAKE_CURRENT_SOURCE_DIR}/ClangConfig.cmake
-  ${clang_cmake_builddir}/ClangConfig.cmake
-  COPYONLY)
diff --git a/cmake/modules/ClangConfig.cmake b/cmake/modules/ClangConfig.cmake.in
similarity index 100%
rename from cmake/modules/ClangConfig.cmake
rename to cmake/modules/ClangConfig.cmake.in