K 10
svn:author
V 5
danfe
K 8
svn:date
V 27
2020-02-16T16:35:07.508804Z
K 7
svn:log
V 755
Our LLVM packages typically built without dump support (which is meant for
developers, not for actual LLVM-based products), and ``void dump() const''
sprinkled across LLVM header files are just prototypes.  However, this is
not the case with ``$localbase/llvm$ver/include/llvm/Support/CFGUpdate.h'',
where it contains some actual code:

    #if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
      LLVM_DUMP_METHOD void dump() const { print(dbgs()); }
    #endif

This, in turn, results in the linker failure due to "undefined reference to
llvm::cfg::Update<llvm::BasicBlock*>::dump() const".  Avoid this by defining
-DNDEBUG when compiling two files which end up having a reference to dump().

This is a prerequisite to enable building with LLVM backend.

END