On 03/21/2012 10:34 PM, Artur R. Czechowski wrote: > Hello, > Plase consider simple autoconf.ac script: > > AC_INIT([bugreport], [0.1]) > AC_C_CONST > > After processing it with autoconf there is a differnce between the calls: > ./configure > ./configure CFLAGS="-W -Wall -Werror"
Don't do that. This issue repeatedly comes up on the list, and the answer is always the same - configuring with CFLAGS=-Werror is wrong, because there is no way to portably write tests that are guaranteed to be warning-free across all versions of all compilers. If you _must_ use -Werror when building your package, then configure without it, and add -Werror in later. See for example how coreutils does it, via it's --enable-gcc-warnings configure switch. -- Eric Blake ebl...@redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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