From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
cc: Terry Phelps <tgphelps50@gmail.com>, pgsql-hackers@lists.postgresql.org
Subject: Re: Compile error while building postgresql 10.3
In-reply-to: <20180319195451.vxymrucrnxwpbzw3@alap3.anarazel.de>
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 <28853.1521489010@sss.pgh.pa.us>
 <20180319195451.vxymrucrnxwpbzw3@alap3.anarazel.de>
Comments: In-reply-to Andres Freund <andres@anarazel.de>
	message dated "Mon, 19 Mar 2018 12:54:51 -0700"
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Date: Mon, 19 Mar 2018 16:01:21 -0400
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Andres Freund <andres@anarazel.de> writes:
> There seems to be something sketchy afoot here, even outside of
> CFLAGS_SSE42 itself. From the original email:

> cc -I/usr/local/include -I../../src/port -DFRONTEND -I../../src/include
> -c -o pg_crc32c_sse42.o pg_crc32c_sse42.c

> isn't this missing a number of important flags? Like at least
> -fno-strict-aliasing -fwrapv -fexcess-precision=standard?

Good point ... seems like we lost *all* CFLAGS not just the SSE42 ones.
I believe the options we see here are all from CPPFLAGS not CFLAGS.

Terry, could we see a full "make" trace from src/port/?  Something like

cd src/port
make -s clean
make

I'm curious whether the flags lossage affects all .c files in that
directory, or only ones that are trying to add on custom flags.

			regards, tom lane