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Re: Testing for unknown flags in different compilers
From: |
David A. Wheeler |
Subject: |
Re: Testing for unknown flags in different compilers |
Date: |
Wed, 19 Feb 2014 18:22:31 -0500 (EST) |
> I have been working on a changes whereby an autoconf user can invoke a macro
> like
AC_WARN_ADD([-Wextra])
> to add user-specified flags to the compiler/linker invocations.
> Ideally we would like
AC_WARN_ADD([-Wunknown-warning-flag])
> to not add the offending unknown flag.
I like the goal. I wonder if "AC_WARN_ADD" is the right macro name.
After all, this could add any flag or flag sequence, as long as the compiler
accepts it.
Perhaps another name like "AC_ADD_FLAG_IFVALID" or whatever
would be a better name. I don't care exactly what the *name* is, as long as
it's clear.
--- David A. Wheeler