On 9/20/2010 10:18 PM, Christopher Faylor wrote: > On Mon, Sep 20, 2010 at 05:01:52PM -0700, ke...@ca wrote: >> I used "x86_64-w64-mingw32-gcc ...." to build the application, but failed. >> The output tells missing pthread.h. pthread.h is included in one of my >> source files. >> >> I located the file, one in C:\cygwin\usr\include, the other >> C:\cygwin\usr\x86_64-w64-mingw32\sys-root\mingw\include. >> >> I tried using -I to tell gcc to include pthread.h, but failed. why? > > This is a MinGW compiler. It doesn't support pthread. Any threading > support would be with standard Windows calls.
I don't think that's accurate. The x86_64-mingw64 cross compiler package set includes a win32-pthreads package, including pthread.h. It's necessary for gcc's OMP support via libgomp. That's why the OP was able to find one copy of pthread.h in C:\cygwin\usr\x86_64-w64-mingw32\sys-root\mingw\include. The real question is why the (cross)compiler couldn't locate it; given the whole /mingw prefix and sysroot support, it really should be able to. -- Chuck -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple