Re: [PORTS] Port Bug Report: Would not build with -O2 flags set

This is not a suprise, and something we have been looking at in 6.5beta.
egcs does some optimization of function calls with short int parameters,
and calling the adt functions through function pointers triggers a
problem.

Only certain platforms do this optimization. I don't think we can fix
it for 6.5, but it is good to know.

>
> ============================================================================
> POSTGRESQL BUG REPORT TEMPLATE
> ============================================================================
>
>
> Your name : Ritch Azocar
> Your email address : admin(at)dqu(dot)cc(dot)ca(dot)us
>
> Category : install: compile
> Severity : serious
>
> Summary: Would not build with -O2 flags set
>
> System Configuration
> --------------------
> Operating System : Linux 2.2.3 ELF RedHat 5.1
>
> PostgreSQL version : 6.4.2
>
> Compiler used : gcc 2.7.3
>
> Hardware:
> ---------
> DEC Multia 21066A, 64M RAM
>
> Versions of other tools:
> ------------------------
> egcs 1.0.3
> make 3.7.6
>
> --------------------------------------------------------------------------
>
> Problem Description:
> --------------------
> Several targets in the backend/utils/adt directory could not be built with the optimize more (-O2) flags set. datetime.c and dt.c I'm sure about, I don't know about any others because I removed -O2 from CFLAGS in Makefile.global and was able to build. I don't relly care about optimum performance (I'm running on a 166MHz Alpha 21066A) so I didin't spend the time to compile individual targets with and without optimization. I couldn't build the ODBC interface (-O2 flag not set) at all. I haven't tried to build it independently of the postgresql build yet. TCL & Perl worked fine.
>
> --------------------------------------------------------------------------
>
> Test Case:
> ----------
>
>
> --------------------------------------------------------------------------
>
> Solution:
> ---------
> Turn off -O2 in CFLAGS
>
> --------------------------------------------------------------------------
>
>
>

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