when i explicitly specify that i want to link with libpng15, ie by invoking
-lpng15
instead of
-lpng
then everything compiles ok.
this looks weird as libpng.a correctly points to libpng15.a in /sw/lib
[robinson]<lib> ls -l /sw/lib/*libpng*
-rwxr-xr-x 1 root admin 176908 Apr 9 13:36 /sw/lib/libpng.3.dylib*
lrwxr-xr-x 1 root admin 10 Apr 9 13:35 /sw/lib/libpng.a@ -> libpng15.a
lrwxr-xr-x 1 root admin 14 Apr 9 13:35 /sw/lib/libpng.dylib@ ->
libpng15.dylib
lrwxr-xr-x 1 root admin 11 Apr 9 13:35 /sw/lib/libpng.la@ -> libpng15.la
-rwxr-xr-x 1 root admin 176940 Apr 9 13:36 /sw/lib/libpng12.0.dylib*
-rwxr-xr-x 1 root admin 176280 Apr 9 13:35 /sw/lib/libpng14.14.dylib*
-rwxr-xr-x 1 root admin 194412 Apr 9 13:35 /sw/lib/libpng15.15.dylib*
-rw-r--r-- 1 root admin 628832 Apr 9 13:35 /sw/lib/libpng15.a
lrwxr-xr-x 1 root admin 17 Apr 9 13:35 /sw/lib/libpng15.dylib@ ->
libpng15.15.dylib
-rwxr-xr-x 1 root admin 913 Apr 9 13:35 /sw/lib/libpng15.la*
how can -lpng not be equivalent to -lpng15 in this context??
Début du message réexpédié :
> De : Jean-Francois Donati <[email protected]>
> Date : 29 juin 2012 12:44:59 HAEC
> À : fink-users <[email protected]>
> Objet : Rép : [Fink-users] problem with pgplot & libpng
>
> thanks for the quick reply
>
>> Make sure you have libpng14 or libpng15 installed. You probably currently
>> have Fink's libpng3 installed, which doesn't have that symbol.
>
> i actually do have libpng15 installed and anot libpng3:
>
> [robinson]<esprit> fink list libpng
> Information about 11483 packages read in 1 seconds.
> libpng-shlibs 1.0.12-7 PNG image format handling library
> libpng14 1.4.11-1 PNG image format handling library
> i libpng14-shlibs 1.4.11-1 Shared libraries for libpng14 package
> i libpng15 1.5.10-1 PNG image format handling library
> i libpng15-shlibs 1.5.10-1 Shared libraries for libpng15 package
> libpng3 1:1.2.49-1 PNG image format handling library
> i libpng3-shlibs 1:1.2.49-1 Shared libraries for libpng3 package
> i system-pkgconfig-li 1.2.46-1 [virtual pkgconfig package
> representing libpng]
> i system-pkgconfig-li 1.2.46-1 [virtual pkgconfig package
> representing libpng12]
>
> on my MacPro (running under fink PM 0.29.21) i have libpng14 installed (and
> not 15) and it works fine...
> so the problem may relate to libpng15.
> i didnot mention that i'm compiling with the -m32 option. is there any
> incompatibility of this option with libpng15 ?
>
> jeanfrancois
>
>
>> On 06/29/2012 4:22 AM, Jean-Francois Donati wrote:
>>> hi
>>>
>>> i'm having a problem when compiling a c code (called geometry) invoking
>>> pgplot libraries.
>>> this code used to work fine in the past on my mac book (2.4GHz intel core2
>>> duo) under OSX 10.6.8
>>> but is failing now for a reason that i cannot manage to work out
>>> (i haven't tried it for a while so it may be related to an fink upgrade
>>> that occured a few months ago).
>>> this very same code is working fine on my mac pro (same version of OSX,
>>> latest version of fink stable)
>>> but is apparently failing on the macbook.
>>>
>>> here is the message i'm getting : obviously, it's having trouble finding a
>>> routine,
>>> that should presumably be part of libpng but is not (since i'm linking with
>>> libpng obviously).
>>>
>>> [robinson]<esprit> make geometry
>>> gfortran -o geometry geometry.o util.o spec.o earth.o ccdfit.o version.o
>>> /Users/donati/lib/libfile.a /Users/donati/lib/libnr0.a
>>> /Users/donati/lib/libmem.a /Users/donati/lib/libplot.a -L/usr/X11R6/lib
>>> -lX11 -Wl,-framework -Wl,Foundation -L/sw/lib -lz -laquaterm -lpng
>>> -L/sw/lib/pgplot -lpgplot -lcpgplot
>>> Undefined symbols:
>>> "_png_set_longjmp_fn", referenced from:
>>> _write_image_file in libpgplot.a(pndriv.o)
>>> ld: symbol(s) not found
>>> collect2: erreur: ld a retourn'e 1 code d''etat d'ex'ecution
>>> make: *** [geometry] Error 1
>>
>>
>>
>>
>
>
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