Re: Inlining error from "timespec.h".

[Paul Eggert]

Mats Erik Andersson wrote:

> I am now trying to build GNU Shishi with on Debian with gcc-4.7.2
> and with the previous gcc-4.4.5. This includes bootstrapping
> the source with "manywarnings.m4", etcetera.
>
> However, gcc-4.4.5 fails due to "-Wmissing-prototypes":

Currently, --enable-gcc-warnings requires GCC 4.6 if you use the 
extern-inline module.  The workaround is to not use 
--enable-gcc-warnings with older GCCs.  No doubt this could be ported to 
older GCCs, if someone wanted to take the time and trouble to do that, 
if only by disabling 'extern inline' entirely on older GCCs when 
warnings are enabled.

> As a side note, gcc-4.4.5 does not accept "-Wenum-compare" as a
> valid option for C-coded source, yet it is included in "manywarnings".

That's surprising, as manywarnings is supposed to disable warnings that 
are not supported.  I suppose this could be fixed as well, if someone 
wants to worry about these older systems.  Again, the workaround is to 
not use --enable-gcc-warnings.