Re: [9fans] impressive

[geoff]

>From memory and a quick scan of gcc(1) since I don't have time to read
the entire manual ``page'' now, `gcc -ansi -pedantic' should compile
exactly 1990 ISO C and `gcc --std=c99 -pedantic' should compile
exactly 1999 ISO C. Using -pedantic-errors instead of -pedantic will
produce fatal errors rather than warnings for using extensions.