Re: Extend AT_CHECK_MACRO to test macros with -O2 -Wall -Werror

[Eric Blake]

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According to Didier Barvaux on 5/10/2008 9:37 AM:
| Hi all,
|
| I encountered a problem with the AC_C_CONST macro when using -O2 -Wall
| -Werror as CFLAGS. The AC_C_CONST macro broke with similar CFLAGS some
| time ago [1]. Thus I created a patch that extends the AT_CHECK_MACRO
| macro used in the testsuite.

Thanks for the patch.  However, I don't want to apply it just yet.  There
is a bigger issue that several tests fail when running the autoconf
testsuite under -Wall -Werror (I have tried this in the past); in
particular, some warnings occur when testing for functions that might be
implemented as a compiler builtin (such as printf) for which I don't know
how to silence the warning.  Changing AT_CHECK_MACRO without a fix for
every macro provided by autoconf will lead to false testsuite failures.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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