CSTD can be manually set near the top of src/Makefile, util/Makefile or by including c99=1 or C99=1 on the build make command line if using the linux.370 or macOS.370 hints files.
CSTD can be manually set near the top of src/Makefile, util/Makefile or by including c99=1 or C99=1 on the build make command line if using the linux.370 or macOS.370 hints files.