On 05/24/2011 01:44 PM, Tom Lane wrote:
Ibrar Ahmed<ibrar.ah...@gmail.com> writes:
I have found a problem which is specifically related to "HP-UX" compiler.
All 'libm' functions on "HP-UX Integrity server" do not set "errno" by
default. For 'errno' setting we should compile the code using +Olibmerrno
option. So we should add this option in "/src/makefiles/Makefile.hpux".
This patch will break things on my admittedly rather ancient HPUX box:
$ cc +Olibmerrno
cc: warning 450: Unrecognized option +Olibmerrno.
As submitted, it would also break gcc-based builds, though that at least
wouldn't be hard to fix.
If you want to submit a configure patch to test whether the switch is
appropriate, we could consider it.
BTW, is it really true that HP decided they could make the compiler's
default behavior violate the C standard so flagrantly? I could believe
offering a switch that you had to specify to save a few cycles at the
cost of nonstandard behavior; but if your report is actually correct,
their engineering standards have gone way downhill since I worked there.
I wonder whether you are inserting some other nonstandard switch that
turns on this effect.
I have been whining for years about the lack of HP-UX support (both for
gcc and their compiler) on the buildfarm. I really really wish HP would
come to the party and supply some equipment and software. Failing that,
some spare cycles being made available on a machine by someone else who
runs it would be good.
cheers
andrew
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