From 3fe50cb13ced56102abe0d5d9e4ad2fb0e677787 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <superjoe30@gmail.com>
Date: Thu, 28 Sep 2017 10:48:13 -0400
Subject: [PATCH] simpler cmake for msvc

---
 cmake/Findllvm.cmake | 169 ++++++++++++++-----------------------------
 1 file changed, 53 insertions(+), 116 deletions(-)

diff --git a/cmake/Findllvm.cmake b/cmake/Findllvm.cmake
index dc45a09258..87e80f24bc 100644
--- a/cmake/Findllvm.cmake
+++ b/cmake/Findllvm.cmake
@@ -7,128 +7,65 @@
 # LLVM_LIBRARIES
 # LLVM_LIBDIRS
 
-if(MSVC)
-  find_package(LLVM REQUIRED CONFIG)
+find_program(LLVM_CONFIG_EXE
+    NAMES llvm-config-5.0 llvm-config
+    PATHS
+        "/mingw64/bin"
+        "/c/msys64/mingw64/bin"
+        "c:/msys64/mingw64/bin"
+        "C:/Libraries/llvm-5.0.0/bin")
 
-  # TODO: this currently doesn't work, it currently defines UNICODE but zig
-  #       uses MBCS
-  #add_definitions(${LLVM_DEFINITIONS})
-
-  link_directories(${LLVM_LIBRARY_DIRS})
-  llvm_map_components_to_libnames(LLVM_LIBRARIES
-      LTO
-      Symbolize
-      XCoreDisassembler
-      XCoreCodeGen
-      XCoreAsmPrinter
-      SystemZDisassembler
-      SystemZCodeGen
-      SystemZAsmParser
-      SystemZAsmPrinter
-      SparcDisassembler
-      SparcCodeGen
-      SparcAsmParser
-      SparcAsmPrinter
-      PowerPCDisassembler
-      PowerPCCodeGen
-      PowerPCAsmParser
-      PowerPCAsmPrinter
-      NVPTXCodeGen
-      NVPTXAsmPrinter
-      MSP430CodeGen
-      MSP430AsmPrinter
-      MipsDisassembler
-      MipsCodeGen
-      MipsAsmParser
-      MipsAsmPrinter
-      LanaiDisassembler
-      LanaiCodeGen
-      LanaiAsmParser
-      LanaiAsmPrinter
-      HexagonDisassembler
-      HexagonCodeGen
-      HexagonAsmParser
-      BPFDisassembler
-      BPFCodeGen
-      BPFAsmPrinter
-      ARMDisassembler
-      ARMCodeGen
-      ARMAsmParser
-      ARMAsmPrinter
-      AMDGPUDisassembler
-      AMDGPUCodeGen
-      AMDGPUAsmParser
-      AMDGPUAsmPrinter
-      AArch64Disassembler
-      AArch64CodeGen
-      AArch64AsmParser
-      AArch64AsmPrinter
-      LibDriver
-      X86Disassembler
-      X86AsmParser
-      X86CodeGen
-      X86AsmPrinter
-      Core
-  )
-
-else()
-  find_program(LLVM_CONFIG_EXE
-      NAMES llvm-config-5.0 llvm-config
-      PATHS
-          "/mingw64/bin"
-          "/c/msys64/mingw64/bin"
-          "c:/msys64/mingw64/bin"
-          "C:/Libraries/llvm-5.0.0/bin")
-
-  if(NOT(CMAKE_BUILD_TYPE STREQUAL "Debug"))
-    execute_process(
-        COMMAND ${LLVM_CONFIG_EXE} --libfiles --link-static
-        OUTPUT_VARIABLE LLVM_LIBRARIES_SPACES
-        OUTPUT_STRIP_TRAILING_WHITESPACE)
-    string(REPLACE " " ";" LLVM_LIBRARIES "${LLVM_LIBRARIES_SPACES}")
-
-    execute_process(
-        COMMAND ${LLVM_CONFIG_EXE} --system-libs --link-static
-        OUTPUT_VARIABLE LLVM_SYSTEM_LIBS_SPACES
-        OUTPUT_STRIP_TRAILING_WHITESPACE)
-    string(REPLACE " " ";" LLVM_SYSTEM_LIBS "${LLVM_SYSTEM_LIBS_SPACES}")
-
-    execute_process(
-        COMMAND ${LLVM_CONFIG_EXE} --libdir --link-static
-        OUTPUT_VARIABLE LLVM_LIBDIRS_SPACES
-        OUTPUT_STRIP_TRAILING_WHITESPACE)
-    string(REPLACE " " ";" LLVM_LIBDIRS "${LLVM_LIBDIRS_SPACES}")
-  endif()
-  if(NOT LLVM_LIBRARIES)
-    execute_process(
-        COMMAND ${LLVM_CONFIG_EXE} --libs
-        OUTPUT_VARIABLE LLVM_LIBRARIES
-        OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-    execute_process(
-        COMMAND ${LLVM_CONFIG_EXE} --system-libs
-        OUTPUT_VARIABLE LLVM_SYSTEM_LIBS
-        OUTPUT_STRIP_TRAILING_WHITESPACE)
-
-    execute_process(
-        COMMAND ${LLVM_CONFIG_EXE} --libdir
-        OUTPUT_VARIABLE LLVM_LIBDIRS
-        OUTPUT_STRIP_TRAILING_WHITESPACE)
-  endif()
+if(NOT(CMAKE_BUILD_TYPE STREQUAL "Debug"))
+  execute_process(
+      COMMAND ${LLVM_CONFIG_EXE} --libfiles --link-static
+      OUTPUT_VARIABLE LLVM_LIBRARIES_SPACES
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(REPLACE " " ";" LLVM_LIBRARIES "${LLVM_LIBRARIES_SPACES}")
 
   execute_process(
-      COMMAND ${LLVM_CONFIG_EXE} --includedir
-      OUTPUT_VARIABLE LLVM_INCLUDE_DIRS
+      COMMAND ${LLVM_CONFIG_EXE} --system-libs --link-static
+      OUTPUT_VARIABLE LLVM_SYSTEM_LIBS_SPACES
       OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(REPLACE " " ";" LLVM_SYSTEM_LIBS "${LLVM_SYSTEM_LIBS_SPACES}")
 
-  set(LLVM_LIBRARIES ${LLVM_LIBRARIES} ${LLVM_SYSTEM_LIBS})
-
-  if(NOT LLVM_LIBRARIES)
-    find_library(LLVM_LIBRARIES NAMES LLVM LLVM-5.0 LLVM-5)
-  endif()
-
-  link_directories("${CMAKE_PREFIX_PATH}/lib")
+  execute_process(
+      COMMAND ${LLVM_CONFIG_EXE} --libdir --link-static
+      OUTPUT_VARIABLE LLVM_LIBDIRS_SPACES
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(REPLACE " " ";" LLVM_LIBDIRS "${LLVM_LIBDIRS_SPACES}")
 endif()
+if(NOT LLVM_LIBRARIES)
+  execute_process(
+      COMMAND ${LLVM_CONFIG_EXE} --libs
+      OUTPUT_VARIABLE LLVM_LIBRARIES_SPACES
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(REPLACE " " ";" LLVM_LIBRARIES "${LLVM_LIBRARIES_SPACES}")
+
+  execute_process(
+      COMMAND ${LLVM_CONFIG_EXE} --system-libs
+      OUTPUT_VARIABLE LLVM_SYSTEM_LIBS_SPACES
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(REPLACE " " ";" LLVM_SYSTEM_LIBS "${LLVM_SYSTEM_LIBS_SPACES}")
+
+  execute_process(
+      COMMAND ${LLVM_CONFIG_EXE} --libdir
+      OUTPUT_VARIABLE LLVM_LIBDIRS_SPACES
+      OUTPUT_STRIP_TRAILING_WHITESPACE)
+  string(REPLACE " " ";" LLVM_LIBDIRS "${LLVM_LIBDIRS_SPACES}")
+endif()
+
+execute_process(
+    COMMAND ${LLVM_CONFIG_EXE} --includedir
+    OUTPUT_VARIABLE LLVM_INCLUDE_DIRS
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+set(LLVM_LIBRARIES ${LLVM_LIBRARIES} ${LLVM_SYSTEM_LIBS})
+
+if(NOT LLVM_LIBRARIES)
+  find_library(LLVM_LIBRARIES NAMES LLVM LLVM-5.0 LLVM-5)
+endif()
+
+link_directories("${CMAKE_PREFIX_PATH}/lib")
 
 
 include(FindPackageHandleStandardArgs)