Re: [Fink-devel] python26-2.6.8-2 linking wrong libncurses

[Jack H. <ho...@br...>]

On Mon, Feb 18, 2013 at 09:17:33AM -0700, Alexander Hansen wrote:
> On 2/18/13 8:27 AM, Hanspeter Niederstrasser wrote:
> > On 2/18/2013 9:26 AM, Jack Howarth wrote:
> >>     On x86_64 fink 10.6, the new python26-2.6.8-2 build fails with the error...
> >>
> >> ld: in /usr/lib/libncurses.5.dylib, missing required architecture x86_64 in file for architecture x86_64
> >> collect2: ld returned 1 exit status
> >>
> >> The problem is that compile line...
> >>
> >> gcc -bundle libpython2.6.dylib build/temp.macosx-10.6-x86_64-2.6/sw/src/fink.build/python26-2.6.8-2/Python-2.6.8/Modules/readline.o -lreadline -lncursesw -o build/lib.macosx-10.6-x86_64-2.6/readline.so -I. -IInclude -I./Include -I/sw/include -L/sw/lib/system-openssl/lib -L/sw/lib -L/sw/lib/system-openssl/lib -L/sw/lib -L/sw/lib/system-openssl/lib -L/sw/lib -L/usr/lib/termcap
> >>
> >> which is placing -lreadline --lncursesw before any of the instance of -L/sw/lib.
> > 
> > To add to the record, it is more than just the order of -l and -L flags, 
> > because on 10.7/xcode4.6, this is the linker line (note -L/sw/lib at 
> > beginning which seems to be set by SetLDFLAGS):
> > 
> > gcc -L/sw/lib/system-openssl/lib -L/sw/lib -bundle libpython2.6.dylib 
> > -L/sw/lib/system-openssl/lib -L/sw/lib -I. -IInclude -I./Include 
> > -I/sw/include 
> > build/temp.macosx-10.7-x86_64-2.6/sw/build.build/python26-2.6.8-2/Python-2.6.8/Modules/readline.o 
> > -L/usr/lib/termcap -L/sw/lib/system-openssl/lib -L/sw/lib -lreadline 
> > -lncursesw -o build/lib.macosx-10.7-x86_64-2.6/readline.so
> > 
> > and it gives the same error you see since /usr/lib/libncurses.5.dylib is 
> > i386 only.  *But* if I downgrade to use our readline5, then the build 
> > succeeds.  Both of Fink's readline dylibs link to 
> > /sw/lib/libncurses.5.dylib. So something beyond flag ordering is happening.
> > 
> > Hanspeter
> > 
> > addendum: On a 10.6/x86_64 system here, I get this (with successful 
> > completion):
> > 
> > gcc -L/sw64/lib/system-openssl/lib -L/sw64/lib -bundle 
> > libpython2.6.dylib -L/sw64/lib/system-openssl/lib -L/sw64/lib -I. 
> > -IInclude -I./Include -I/sw64/include 
> > build/temp.macosx-10.6-x86_64-2.6/sw64/build.build/python26-2.6.8-2/Python-2.6.8/Modules/readline.o 
> > -L/usr/lib/termcap -L/sw64/lib/system-openssl/lib -L/sw64/lib -lreadline 
> > -lncursesw -o build/lib.macosx-10.6-x86_64-2.6/readline.so
> > 
> > 
> 
> What Xcode versions do you guys have for 10.6?  The build succeeds for
> me on 10.6/x86_64 with Xcode 3.2.6.

This is failing with Xcode 4.2 on 10.6 x86_64 fink here.

> 
> -- 
> Alexander Hansen, Ph.D.
> Fink User Liaison
> My package updates: http://finkakh.wordpress.com/