https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66530
--- Comment #2 from Jennifer Yao <jy38 at zips dot uakron.edu> --- (In reply to Jonathan Wakely from comment #1) > Does the > /cygdrive/c/Users/yaoj3/Code/gcc/build/trunk/x86_64-pc-cygwin/./libstdc++-v3/ > src/.libs directory in the LD_LIBRAY_PATH contain the libstdc++.so.6 library? The requisite DLL and import library are both present (cygstdc++-6.dll and libstdc++.dll.a, respectively). (In reply to Jonathan Wakely from comment #1) > (In reply to Jennifer Yao from comment #0) > > My hypothesis (and please correct me if I'm wrong) is that the libstdc++ > > that is being loaded at runtime is the preexisting (unaltered/unpatched) > > library in the install tree, rather than the altered/patched library in the > > build tree. > > If that's true it must be a cygwin problem, as it doesn't happen for other > targets. All testing should be done against the build tree, and that's what > happens for me. Are you sure that the libstdc++ in the build tree is the one that's loaded at runtime on your system? I only ask because I don't have a Linux system to test on, and it would be relatively easy to overlook since much of libstdc++ is header-only anyway.
