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@dqu.cc.ca.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.cand dt.c I'm sure about, I don't know about any others because I removed -O2 from CFLAGS in Makefile.global
andwas able to build.  I don't relly care about optimum performance (I'm running on a 166MHz Alpha 21066A) so I didin't
spendthe time to compile individual targets with and without optimization.  I couldn't build the ODBC interface (-O2
flagnot 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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