Roger Leigh wrote:
and these work well. What it doesn't do is let me use features such as mixed declarations and code. These require you to use "gcc -std=c99" or "c99" or similar, and I can't enable this portably. If autoconf could find out how to put a given compiler into C99 mode, that would be great (in the same way as AC_PROG_GCC_TRADITIONAL works for K&R C).
This sort of test is also needed to test C99 support for anonymous unions and structures in declarators, which I have run into problems with before.
If there's a way to create AC_PROG_CC_C99 or something similar, that would be wonderful.
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