From e44c13d6734d94530ad4977f6a2e486fe1fc1a26 Mon Sep 17 00:00:00 2001
From: Hans Wennborg <hans@hanshq.net>
Date: Mon, 31 Jul 2017 17:39:07 +0000
Subject: [PATCH] Merging r309483:
 ------------------------------------------------------------------------
 r309483 | mgorny | 2017-07-29 01:10:24 -0700 (Sat, 29 Jul 2017) | 7 lines

[OCaml] Pass -D/-UNDEBUG through to ocamlc

Detect [/-][DU]NDEBUG in CMAKE_C_FLAGS* and pass them through to ocamlc.
This is necessary because their value might affect visibility of dump
functions in LLVM and ocamlc uses its own compiler and flags by default.

Differential Revision: https://reviews.llvm.org/D35898
------------------------------------------------------------------------


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_50@309591 91177308-0d34-0410-b5e6-96231b3b80d8
---
 cmake/modules/AddOCaml.cmake | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cmake/modules/AddOCaml.cmake b/cmake/modules/AddOCaml.cmake
index 1b805c0710a..daed7bb82b1 100644
--- a/cmake/modules/AddOCaml.cmake
+++ b/cmake/modules/AddOCaml.cmake
@@ -87,6 +87,11 @@ function(add_ocaml_library name)
   foreach( include_dir ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR} )
     set(c_flags "${c_flags} -I${include_dir}")
   endforeach()
+  # include -D/-UNDEBUG to match dump function visibility
+  # regex from HandleLLVMOptions.cmake
+  string(REGEX MATCH "(^| )[/-][UD] *NDEBUG($| )" flag_matches
+         "${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${CMAKE_C_FLAGS}")
+  set(c_flags "${c_flags} ${flag_matches}")
 
   foreach( ocaml_file ${ARG_OCAML} )
     list(APPEND sources "${ocaml_file}.mli" "${ocaml_file}.ml")
-- 
2.49.0