gplugin/gplugin

Update for the new toolchain file names
bugfix/mingw-build-fixin
2019-09-29, Gary Kramlich
c22ccfbcecfb
Update for the new toolchain file names
export GPLUGIN_VERSION=@GPLUGIN_MAJOR_VERSION@.@GPLUGIN_MINOR_VERSION@.@GPLUGIN_MICRO_VERSION@