imiller@jwheatley.ac.uk writes:
Thanks for your help. Just to update you all, setting GPC_EXEC_PREFIX to either
/c/mingw/lib/gcc-lib/ or c:/mingw/lib/gcc-lib/
Just as a footnote, if you wish to use GPC from both the Windows command line and MSYS, then it is probably best to set up a Windows environment variable GPC_EXEC_PREFIX=c:\mingw\lib\gcc-lib\ (rather than setting the variable in MSYS's /etc/profile, where Windows cannot see it).
cheers, Ian