> On 24 Mar 2022, at 14:42, Bob Friesenhahn <bfriesen@xxxxxxxxxxxxxxxxxxx> wrote: > > On Thu, 24 Mar 2022, Evgeny Grin wrote: >> >> It's not uncommon to use CFLAGS for macros or for '-I' flags. >> I think it's easy to imagine other conflicting situation where the order of used flags is significant. > > It may not be uncommon, but it is a usage bug to use CFLAGS for pre-processor options. Such usages should be corrected. > > Becides cases where the pre-processor may be used directly (not sure if there are any), it should be considered that CPPFLAGS works for both the C and C++ compilers but CFLAGS is only for the C compiler. > >> Usage of CPPFLAGS before CFLAGS looks logical for me, I think autoconf should be fixed. > > It does feel more logical. > Agreed on both counts & with the original post. We handle stuff like this quite often downstream and would be glad to see this. best, sam
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