[llvm] r309483 - [OCaml] Pass -D/-UNDEBUG through to ocamlc

[Michal Gorny via llvm-commits]

Author: mgorny
Date: Sat Jul 29 01:10:24 2017
New Revision: 309483

URL: http://llvm.org/viewvc/llvm-project?rev=309483&view=rev
Log:
[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

Modified:
    llvm/trunk/cmake/modules/AddOCaml.cmake

Modified: llvm/trunk/cmake/modules/AddOCaml.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/modules/AddOCaml.cmake?rev=309483&r1=309482&r2=309483&view=diff
==============================================================================
--- llvm/trunk/cmake/modules/AddOCaml.cmake (original)
+++ llvm/trunk/cmake/modules/AddOCaml.cmake Sat Jul 29 01:10:24 2017
@@ -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")