add hacky fix for cmake and mingw32

Author: vchuravy

deps/llvm.mk

@@ -523,6 +523,7 @@ $(eval $(call LLVM_PATCH,llvm-PPC-addrspaces)) # PPC
 $(eval $(call LLVM_PATCH,llvm-D42260)) # remove for 7.0 (probably)
 $(eval $(call LLVM_PATCH,llvm-rL326843-missing-header)) # remove for 7.0 (might be nominated for 6.0.1)
 $(eval $(call LLVM_PATCH,llvm-6.0-r327540)) # remove for 7.0 (might be nominated for 6.0.1)
+$(eval $(call LLVM_PATCH,llvm-6.0-cmake-mingw32)) # HACK, needs to be polished and upstreamed
 endif # LLVM_VER
 
 # Remove hardcoded OS X requirements in compilter-rt cmake build

deps/patches/llvm-6.0-cmake-mingw32.patch

@@ -0,0 +1,32 @@
+From 8ba11e6bfb673ef5b1266335ca92e77104a5d3f8 Mon Sep 17 00:00:00 2001
+From: Valentin Churavy <[email protected]>
+Date: Thu, 15 Mar 2018 18:36:12 -0400
+Subject: [PATCH] hacky CMAKE fix for MINGW32
+
+---
+ tools/llvm-cfi-verify/lib/CMakeLists.txt | 11 ++---------
+ 1 file changed, 2 insertions(+), 9 deletions(-)
+
+diff --git a/tools/llvm-cfi-verify/lib/CMakeLists.txt b/tools/llvm-cfi-verify/lib/CMakeLists.txt
+index cd728e004b2..c6c2896737c 100644
+--- a/tools/llvm-cfi-verify/lib/CMakeLists.txt
++++ b/tools/llvm-cfi-verify/lib/CMakeLists.txt
+@@ -6,12 +6,5 @@ add_library(LLVMCFIVerify
+   GraphBuilder.h)
+ 
+ llvm_update_compile_flags(LLVMCFIVerify)
+-llvm_map_components_to_libnames(libs
+-  DebugInfoDWARF
+-  MC
+-  MCParser
+-  Object
+-  Support
+-  Symbolize)
+-target_link_libraries(LLVMCFIVerify ${libs})
+-set_target_properties(LLVMCFIVerify PROPERTIES FOLDER "Libraries")
+\ No newline at end of file
++target_link_libraries(LLVMCFIVerify LLVM)
++set_target_properties(LLVMCFIVerify PROPERTIES FOLDER "Libraries")
+-- 
+2.16.2
+