Re: [HACKERS] libpq.a in a universal binary

2006-12-16 Thread Ted Petrosky

take a look at this link

http://www.entropy.ch/blog/Software/2006/02/04/PostgreSQL-Universal- 
Binary-Build-Tips.html


does this help?


Ted




On Dec 14, 2006, at 2:37 PM, Shane Ambler wrote:


Dave Page wrote:

Shane Ambler wrote:



# make distclean
# CFLAGS=-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc - 
arch
i386 LDFLAGS=-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk - 
arch ppc

-arch i386 ./configure --with-openssl --prefix=/usr/local
# make all


After reading the Apple tech doc on this http:// 
developer.apple.com/technotes/tn2005/tn2137.html
I am wondering if we can add Mac universal binary support to the  
TODO list.


I haven't tested this yet but from what I gather adding the -- 
disable-dependency-tracking option to configure will allow the  
option of setting the CFLAGS and LDFLAGS with -arch ppc -arch  
i386 and getting the universal binary build.
The PostgreSQL build doesn't use the dependency tracking (at least  
not by default) so that's not an issue. pgAdmin does on the other  
hand, and the build will fail loudly if you don't disable tracking  
when you configure.


Another possibility (the better option) would be to add an option  
to build universal binaries - such as --host=mac_universal or  
would that be --host=darwin_universal - to automate the CFLAGS  
and LDFLAGS settings. Adding --with-isysroot= should be added to  
support non-standard and future SDK setups as well.
In pgAdmin we figure out what to build for based on the wxWidgets  
installation. In PostgreSQL's case, I would imagine we'd need to  
list the architectures to include in the build per the example  
above however it was automated (you might want ppc and ppc64 but  
not intel for example).


You could have a few options -
--host=darwin-ppc-i386
--host=darwin-ppc-ppc64-i386-amd64
etc.

maybe this could be better setup by splitting the string after  
darwin_ instead of having many different single hosts as such.


If host starts with darwin and len(host)6
arch_string() = explode(-,ltrim(host,7))
CFLAGS=CFLAGS+ -arch +arch_string(x)
else
build for current cpu

Maybe the --host= options with all the different possibilities  
won't be taken in, but I think a TODO should at least be added (not  
a high priority) to support building universal binaries even if  
only fixing the current failure point so that one make command can  
be used to get the end product even if it is a partly manual  
configure.

And this would apply to the client libs more than the server itself.

FWIW, from memory the PostgreSQL build fails at the point at which  
it links all the SUBSYS.o's.


Actually now that I checked it on a clean source tree (8.2.0) and  
not a make/make clean'd source tree it does appear to get to the  
SUBSYS.o's

(when I make clean then set CFLAGS etc it stopped at the beginning)

As I said I hadn't looked into it much and my first impression of  
trying this gave me misleading thoughts of what was needed.



--

Shane Ambler
[EMAIL PROTECTED]

Get Sheeky @ http://Sheeky.Biz



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Re: [HACKERS] libpq.a in a universal binary

2006-12-14 Thread Ted Petrosky
Thanks for the reply at last nights cocoahead meeting in NYC I  
asked and found a solution for libpq.a.


1. config and make on a ppc
2. config and make on intel

copy and rename the libpq.a from each system to a common directory  
and run 'lipo' on them:


lipo libpqppc.a libpqintel.a -output libpq.a

lipo will create the universal binary

man lipo:

LIPO 
(1) 
LIPO(1)


NAME
   lipo - create or operate on universal files

SYNOPSIS
   lipo  [-info]  [-detailed_info]  [-arch  arch_type   
input_file]  ...  [
   input_file] ...  [-arch_blank arch_type]  [-create]  [-thin   
arch_type]
   [-replace  arch_type  filename] ...  [-remove arch_type] ...   
[-extract
   arch_type] ...  [-extract_family arch_type] ...  [-output   
output_file]

   [-segalign arch_type value] ...

DESCRIPTION
   The  lipo command creates or operates on ``universal'' (multi- 
architec-
   ture) files.  It only ever produces one output file, and   
never  alters
   the  input  file.   The  operations that lipo performs are:  
listing the
   architecture types in a universal file;  creating  a  single   
universal
   file from one or more input files; thinning out a single  
universal file
   to one specified architecture type; and extracting,   
replacing,  and/or
   removing architectures types from the input file to create a  
single new

   universal output file.

On Dec 13, 2006, at 3:33 AM, Dave Page wrote:


Ted Petrosky wrote:
I am trying to create the libpq.a as a universal binary (both ppc  
and intel macs). Does anyone have any information on this process?


I use the following notes to build libpq and the bin/ tools to ship  
with pgAdmin. I know it is possible to build the entire server, as  
a Universal binary, but I could never make it work and haven't had  
time to spend on it. Comments welcome :-)


==
Building the entire server as a Universal binary doesn't seem to  
work at

present, so, we build the backend as an architecture specific build,
then create libpq and the tools as Universal binaries over the top.

# ./configure --with-openssl --prefix=/usr/local/
# make all; make install

# make distclean
# CFLAGS=-isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch
i386 LDFLAGS=-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk - 
arch ppc

-arch i386 ./configure --with-openssl --prefix=/usr/local
# make all

Note - this step will fail, but is required to complete the build  
of the tools.


# cd src/interface/libpq
# make all; make install
# cd ../../bin
# make all; make install
==

Regards, Dave



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[HACKERS] libpq.a in a universal binary

2006-12-12 Thread Ted Petrosky
I am trying to create the libpq.a as a universal binary (both ppc and  
intel macs). Does anyone have any information on this process?


Thanks,

Ted

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