Alvaro Herrera <alvherre@2ndquadrant.com> writes:
> Andres Freund wrote:
>>> What exactly would it do? I use ccache all the time, have for years,
>>> but it's not clear to me what can usefully be done by configure.
>> Use ccache without having to set it up individually for CC, CLANG, CXX.
> Umm, I just add /usr/lib/ccache somewhere in PATH (ahead of the compiler
> binaries) which is enough to make it all work.
On my preferred distros (ie Red Hat), ccache is used automatically;
there is nothing that needs to be done in configure AFAIK. (It looks
like this happens by dint of the same thing Alvaro mentions, ie the
standard PATH has /usr/lib(64)?/ccache in front of the actual compilers.)
It'd be important not to break such setups in trying to make it happen
elsewhere.
regards, tom lane