Build the project using an embedded Clang

Author: jonas

.gitignore

@@ -0,0 +1 @@
+target

.travis.yml

@@ -0,0 +1,10 @@
+language: cpp
+sudo: false
+compiler: clang
+
+script:
+ - mkdir -p target
+ - cd target
+ - cmake ..
+ - make
+ - ./scalaBindgen /usr/include/ctype.h -name ctype

CMakeLists.txt

@@ -1,8 +1,26 @@
-set(LLVM_LINK_COMPONENTS support)
+cmake_minimum_required(VERSION 3.9)
+project(scala-native-bindgen)
+
+# Locate $LLVM_PATH/lib/cmake/clang/ClangConfig.cmake
+find_package(Clang REQUIRED CONFIG)
+
+# Read and set CXXFLAGS and LDFLAGS
+execute_process(COMMAND llvm-config --cxxflags
+  OUTPUT_VARIABLE LLVM_CXX_FLAGS
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+
+execute_process(COMMAND llvm-config --ldflags
+  OUTPUT_VARIABLE LLVM_LINKER_FLAGS
+  OUTPUT_STRIP_TRAILING_WHITESPACE
+  )
+
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LLVM_CXX_FLAGS}")
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${LLVM_LINKER_FLAGS}")
 
 add_compile_options(-fexceptions)
 
-add_clang_executable(scalaBindgen
+add_executable(scalaBindgen
   Main.cpp
   ScalaFrontend.h
   TreeVisitor.h
@@ -21,16 +39,5 @@ add_clang_executable(scalaBindgen
 target_link_libraries(scalaBindgen
   PRIVATE
   clangFrontend
-  clangSerialization
-  clangDriver
   clangTooling
-  clangParse
-  clangSema
-  
-  clangAnalysis
-  
-  clangEdit
-  clangAST
-  clangLex
-  clangBasic
   )

README.md

@@ -14,11 +14,15 @@ Running the previous command wild also yield warnings along with the translation
 
 ## Building
 
-Building this tool require building LLVM and Clang. This can take hours. Please consider using pre-built binaries.
-
-* Follow the [building instructions](http://clang.llvm.org/docs/LibASTMatchersTutorial.html#step-0-obtaining-clang) for Clang (Only step 0)
-* Go to `llvm/tools/clang/tools/extra`
-* Clone this repository `git clone https://github.com/mrRosset/scala-native-bindgen scala-bindgen`
-* Add `add_subdirectory(scala-bindgen)` to the CMakeLists.txt in the extra folder
-* Re-run the llvm/clang compilation
-
+Building this tool requires LLVM and Clang. Ensure that `llvm-config` is in your path.
+
+```sh
+# Validate LLVM installation
+llvm-config --version --cmakedir --cxxflags --ldflags
+
+mkdir -p target
+cd target
+cmake ..
+make
+./scalaBindgen /usr/include/ctype.h -name ctype
+```