Re: [SIP-devel] build trouble, MacOS 10.3

[Scott D. <sd...@sc...>]

Hi --

I'm trying to resume my efforts to port SIP to MacOS 10.3 (I'm cautiously
optimistic...).  But I must confess I've run into a problem (I think just
a small one) just in compilation; here's the most immediately relevant
portion of gcc output:

if /bin/sh ../libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I.
-I/sw/lib/scilab-2.7/routines  -g -O2 -W -Wall -Wno-implicit-int
-I/usr/local/include -I/usr/local/include -I/usr/local/include/freetype2
-D_REENTRANT -I/usr/local/include/libxml2  -I/usr/local/include
-I/usr/local/include/freetype2 -D_REENTRANT -I/usr/local/include/libxml2
-MT mogrify_int.lo -MD -MP -MF ".deps/mogrify_int.Tpo" -c -o
mogrify_int.lo mogrify_int.c; \
then mv -f ".deps/mogrify_int.Tpo" ".deps/mogrify_int.Plo"; else rm -f
".deps/mogrify_int.Tpo"; exit 1; fi
 gcc -DHAVE_CONFIG_H -I. -I. -I. -I/sw/lib/scilab-2.7/routines -g -O2 -W
-Wall -Wno-implicit-int -I/usr/local/include -I/usr/local/include
-I/usr/local/include/freetype2 -D_REENTRANT -I/usr/local/include/libxml2
-I/usr/local/include -I/usr/local/include/freetype2 -D_REENTRANT
-I/usr/local/include/libxml2 -MT mogrify_int.lo -MD -MP -MF
.deps/mogrify_int.Tpo -c mogrify_int.c  -fno-common -DPIC -o
.libs/mogrify_int.o
mogrify_int.c: In function `check_argv_validity':
mogrify_int.c:1299: error: `UndefinedCompressionQuality' undeclared (first
use in this function)

Indeed, I can find no evidence of UndefinedCompressionQuality being
defined in SIP or ImageMagick, but I'm not exactly sure where to be
looking for it.  Can you give me a hint about where it's supposed to be
defined?

Thanks
Scott Dexter


On Tue, 17 Feb 2004, Ricardo Fabbri wrote:

> On Mon, 16 Feb 2004, Scott Dexter wrote:
> 
> > ld: Undefined symbols:
> > _com_
> > _sci_gateway
> > _Scierror
> > _checklhs_
> > _checkrhs_
> > _createvarfromptr_
> > (..)
> 
> Hi,
> I can't see how to solve the problem for you, but here's some
> information:
> 
> SIP generates a dynamic library called libsip.so, and this library has
> some undefined symbols ON PURPOSE, since these symbols are to be
> defined by Scilab when SIP is loaded into it.
> 
> Your problem is very similar to what I find on Windows: I don't know
> how to build shared libraries with undefined symbols under MacOSX or
> Windows.
> 
> This is, most certainly, a libtool issue. The flag '-no-undefined'
> is used to do exactly this: tell the system that *all* symbols will be
> defined at link time (that is, when scilab loads the library).
> 
> My guess is that -no-undefined is not working under MacOSX for some
> reason I don't understand. My second guess is that libtool is working
> fine but I don't know enough about it.
> 
> Unfortunately, I really don't have much experience/knowledge about
> shared libraries nor MacOSX to be able to help you further, but I am
> really interested in your problem.
> 
> best,
> Ricardo.
> 
> --
>   Ricardo Fabbri, Cybernetic Vision Research Group, USP, Brazil.
>   WEB: cyvision.if.sc.usp.br/~rfabbri   ICQ: 208974212
> 
>   "With pain and suddeness is how Real Offsprings are born. But they
>   must result from intense pleasure and a long period of development."
>