Dear Brian, > For Cygwin dlls, look at your installed lib... packages and install the related lib...- > debuginfo packages where available: > $ apt-cyg listall lib*-debuginfo | wc > 350 1050 12704 As far as I can tell these files only contain sources, but nothing which would add debug info to stripped dlls: $ tar -xavf mingw64-x86_64-runtime-debuginfo-6.0.0-1.tar.xz $ find . -type f | sed -e 's/.*\.//' | sort -u c h s xz > I am surprised at the number of supported mingw64- packages and the scarcity > of related -debuginfo packages: the MinGW support in Cygwin has very substantially improved in the last years, but indeed many -debuginfo packages for MinGW libs are missing. Best regards, Michael Intel Deutschland GmbH Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany Tel: +49 89 99 8853-0, www.intel.de Managing Directors: Christin Eisenschmid, Gary Kershaw Chairperson of the Supervisory Board: Nicole Lau Registered Office: Munich Commercial Register: Amtsgericht Muenchen HRB 186928 ТÒÐÐ¥&ö&ÆVÒ&W÷'G3¢‡GG¢òö7–wv–âæ6öÒ÷&ö&ÆV×2æ‡FÖÀФd¢‡GG¢òö7–wv–âæ6öÒöfðФFö7VÖVçFF–ö㢇GG¢òö7–wv–âæ6öÒöFö72æ‡FÖÀÐ¥Vç7V'67&–&R–æfó¢‡GG¢òö7–wv–âæ6öÒöÖÂò7Vç7V'67&–&R×6–×ÆPРÐ