From d0d969074f6e0f975ad53d21e7ce6c7b40cf2957 Mon Sep 17 00:00:00 2001

From: Peter Wu <peter@lekensteyn.nl>

Date: Fri, 4 May 2018 15:43:06 +0200

Subject: [PATCH] [llvm] cmake: resolve symlinks in LLVMConfig.cmake

Ensure that symlinks such as /usr/lib/llvm-X.Y/cmake (pointing to

lib/cmake/llvm) are resolved. This ensures that LLVM_INSTALL_PREFIX

becomes /usr/lib/llvm-X.Y instead of /usr.

Partially addresses PR37128

---

 cmake/modules/CMakeLists.txt | 4 ++--

 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/llvm/cmake/modules/CMakeLists.txt b/llvm/cmake/modules/CMakeLists.txt

--- a/llvm/cmake/modules/CMakeLists.txt

+++ b/llvm/cmake/modules/CMakeLists.txt

@@ -88,10 +88,10 @@ file(COPY .

 # Generate LLVMConfig.cmake for the install tree.

 set(LLVM_CONFIG_CODE "

 # Compute the installation prefix from this LLVMConfig.cmake file location.

-get_filename_component(LLVM_INSTALL_PREFIX \"\${CMAKE_CURRENT_LIST_FILE}\" PATH)")

+get_filename_component(LLVM_INSTALL_PREFIX \"\${CMAKE_CURRENT_LIST_FILE}\" REALPATH)")

 # Construct the proper number of get_filename_component(... PATH)

 # calls to compute the installation prefix.

-string(REGEX REPLACE "/" ";" _count "${LLVM_INSTALL_PACKAGE_DIR}")

+string(REGEX REPLACE "/" ";" _count "prefix/${LLVM_INSTALL_PACKAGE_DIR}")

 foreach(p ${_count})

   set(LLVM_CONFIG_CODE "${LLVM_CONFIG_CODE}

 get_filename_component(LLVM_INSTALL_PREFIX \"\${LLVM_INSTALL_PREFIX}\" PATH)")