[Minor] Fix LLVM detection

1 files changed, 42 insertions, 0 deletions

diff --git a/clang-plugin/CMakeLists.txt b/clang-plugin/CMakeLists.txt
index 8b2def17e..525d3b57a 100644
--- a/clang-plugin/CMakeLists.txt
+++ b/clang-plugin/CMakeLists.txt
@@ -7,6 +7,48 @@ IF (ENABLE_CLANG_PLUGIN MATCHES "ON")
     LIST(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}")
     ENABLE_LANGUAGE(CXX)
     FIND_PACKAGE(LLVM REQUIRED)
+    MESSAGE(STATUS "Trying to find libclang for llvm version ${LLVM_PACKAGE_VERSION}")
+    SET(libclang_llvm_header_search_paths
+            # LLVM Debian/Ubuntu nightly packages: http://llvm.org/apt/
+            "/usr/lib/llvm-${LLVM_PACKAGE_VERSION}/include/"
+            # LLVM MacPorts
+            "/opt/local/libexec/llvm-${LLVM_PACKAGE_VERSION}/include"
+            # LLVM Homebrew
+            "/usr/local/Cellar/llvm/${LLVM_PACKAGE_VERSION}/include"
+            # LLVM Homebrew/versions
+            "/usr/local/lib/llvm-${LLVM_PACKAGE_VERSION}/include"
+            # FreeBSD ports versions
+            "/usr/local/llvm${LLVM_PACKAGE_VERSION}/include"
+            "${LLVM_INCLUDE_DIRS}"
+            )
+
+    SET(libclang_llvm_lib_search_paths
+            # LLVM Debian/Ubuntu nightly packages: http://llvm.org/apt/
+            "/usr/lib/llvm-${LLVM_PACKAGE_VERSION}/lib/"
+            # LLVM MacPorts
+            "/opt/local/libexec/llvm-${LLVM_PACKAGE_VERSION}/lib"
+            # LLVM Homebrew
+            "/usr/local/Cellar/llvm/${LLVM_PACKAGE_VERSION}/lib"
+            # LLVM Homebrew/versions
+            "/usr/local/lib/llvm-${LLVM_PACKAGE_VERSION}/lib"
+            # FreeBSD ports versions
+            "/usr/local/llvm${LLVM_PACKAGE_VERSION}/lib"
+            "${LLVM_LIBRARY_DIRS}"
+            )
+
+    find_path(LIBCLANG_INCLUDE_DIR clang-c/Index.h
+            PATHS ${libclang_llvm_header_search_paths}
+            PATH_SUFFIXES LLVM/include #Windows package from http://llvm.org/releases/
+            DOC "The path to the directory that contains clang-c/Index.h")
+    find_library(LIBCLANG_LIBRARY NAMES libclang.imp libclang clang
+            PATHS ${libclang_llvm_lib_search_paths}
+            PATH_SUFFIXES LLVM/lib #Windows package from http://llvm.org/releases/
+            DOC "The file that corresponds to the libclang library.")
+
+    get_filename_component(LIBCLANG_LIBRARY_DIR ${LIBCLANG_LIBRARY} PATH)
+
+    set(LIBCLANG_LIBRARIES ${LIBCLANG_LIBRARY})
+    set(LIBCLANG_INCLUDE_DIRS ${LIBCLANG_INCLUDE_DIR})
 
     SET(CLANGPLUGINSRC plugin.cc printf_check.cc)