https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85091
--- Comment #5 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 27 Mar 2018, redi at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85091 > > --- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- > I can't reproduce this with: > gcc version 7.2.0 20170814 (Fedora MinGW 7.2.0-1.fc26) (GCC) > > I get one warning: > > $ i686-w64-mingw32-g++ -c -std=c++17 -Wnonnull -Woverloaded-virtual -O2 > 16795.cpp > 16795.cpp: In function 'unsigned int _get_output_format()': > 16795.cpp:316:25: warning: 'unsigned int _get_output_format()' redeclared > without dllimport attribute: previous dllimport ignored [-Wattributes] > extern "C" unsigned int _get_output_format(void) {return 1;} > ^~~~~~~~~~~~~~~~~~ > > But no different code depending on the warning options used. It was whether the file was in a subdirectory or in the cwd, not whether the warnings were used.
