Re: [HACKERS] Problem with interfaces/ecpg/lib/Makefile.in in PostgreSQL 6.4.

On Sat, 17 Oct 1998 21:22:56 EDT, Michael Meskes wrote:
> On Sat, Oct 17, 1998 at 02:29:06PM -0400, Billy G. Allie wrote:
>	[...] 
> > These files are not needed since the ecpglib.o and typename.o files will be 
> > built correctly for inclusion to the shared libraries because CFLAGS_SL are 
> > added to CFLAGS if the systems is one of the systems supporting shared 
> > libraries.
> 
> I'm afraid that's not true. The .o files are for the static library. The .sho
> files are compiled with -fpic instead so they are better suited for the
> shared library.
> 

If the system is one that supports building shared libraries, then the 
variable CFLAGS is modified as follows: CFLAGS += $(CFLAGS_SL).  This occurs 
within the IF statement for setting up support for shared libraries for the 
particular system.  Therefore, the *.o files are also compiled with the flag 
for position independant code (PIC).  This does not affect there use in a 
static library, but does make it possible to use them in the dynamic 
libraries.  If the system for which postgreSQL is being built is not one of 
the systems for which shared library support is included, then the *.o files 
are compiled without the flag for PIC support.  So as I said, the *.sho files 
not necessary.
-- 
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