Hello all, On 02/19/14 22:05, Dale Visser wrote: > 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 I'm unclear what tool(s) you want to affect (is the flag going to be added to CFLAGS, CXXFLAGS, FCFLAGS? depending on language mode or CFLAGS only? if the latter shouldn't the name have something like CC in it). Also this is going to cause all sorts problems for compilers that use -W for something else entirely, for example on PowerPC xlc has -W<program>,<options_list> so simply adding some arbitrary -Wsomecharactersequence might easily cause catastrophic results later on. I suggest your macro at least try to make sure your compiler is GNU CC before modifying CFLAGS in any way. Also users should have an option to deselect this because software tends to get distributed to systems where system headers cause one warning or another. In my opinion you are trying to solve a development issue with a tool that has the explicit purpose of being useful for non-developers. Regards, Thomas -- Thomas Jahns DKRZ GmbH, Department: Application software Deutsches Klimarechenzentrum Bundesstraße 45a D-20146 Hamburg Phone: +49-40-460094-151 Fax: +49-40-460094-270 Email: Thomas Jahns <jahns@xxxxxxx>
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