-- LYX_DISABLE_CALLSTACK_PRI= OFF : do not print a callstack when crashing
-- LYX_EXTERNAL_Z = ON : OFF := Build 3rdparty lib zlib
-- LYX_EXTERNAL_ICONV = ON : OFF := Build 3rdparty lib iconvlib
-- LYX_DISABLE_CALLSTACK_PRI= OFF : do not print a callstack when crashing
-- LYX_EXTERNAL_Z = ON : OFF := Build 3rdparty lib zlib
-- LYX_EXTERNAL_ICONV = ON : OFF := Build 3rdparty lib iconvlib