Re: BUG #15358: PostgreSQL fails to build on 10.14 when Perl isenabled.

On 30/08/2018 02:24, PG Bug reporting form wrote:
> That location contains only `libperl.dylib` now, but the output is correct
> as far as Apple are concerned because the usage of `-I` on Darwin is
> erroneous when trying to build against system-provided tools; the advice is
> for people to switch over to using `-iwithsysroot` in those circumstances.
> The absolute minimal patch to achieve that is to replace the three calls of
> `-I$perl_archlibexp/CORE` or `-I$(perl_archlibexp)/CORE` in `configure`,
> `contrib/hstore_plperl/Makefile` and `src/pl/plperl/GNUmakefile` with
> `-iwithsysroot $perl_archlibexp/CORE` or `-iwithsysroot
> $(perl_archlibexp)/CORE` respectively, which clang understands as
> `/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE`
> or the Xcode equivalent of that path and thus PostgreSQL compiles
> successfully.

We also need to support gcc, so that's not going to work.  clang and gcc
appear to have an incompatible zoo of various "sysroot" options.  I
don't know how to consolidate that.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services