gd2: libgd.dylib doesn't contain symbols _gdImageCreateFromPng _gdImagePng

[jonasjonas (Frank Hellenkamp)]

graphviz (and graphviz-devel) are failing to build/link, both with the follwoing error message:

:info:build Undefined symbols for architecture x86_64:
:info:build   "_gdImageCreateFromPng", referenced from:
:info:build       _imageLoad in diffimg.o
:info:build   "_gdImagePng", referenced from:
:info:build       _main in diffimg.o

After cleaning the port, I already tried rebuilding some dependencies of graphviz like

• libpng
• gd2
• gts
• ghostscript

but it doesn't help.

[jonasjonas (Frank Hellenkamp)]

build log of graphviz

[jonasjonas (Frank Hellenkamp)]

build log of graphviz-devel

[jonasjonas (Frank Hellenkamp)]

my macports.conf

[jonasjonas (Frank Hellenkamp)]

I forgot: I am on Snow Leopard 10.6.7 and have the xcode 4.0.2 Build 4A2002a installed.

[ryandesign (Ryan Carsten Schmidt)]

This problem is new to me. Graphviz always builds fine for me on Tiger, Leopard or Snow Leopard. But I have not used Xcode 4 yet.

I wonder if gd2 built properly. What do these commands output?

nm /opt/local/lib/libgd.dylib | grep gdImageCreateFromPng
nm /opt/local/lib/libgd.dylib | grep gdImagePng

[jonasjonas (Frank Hellenkamp)]

gd has been build with the no_x11 variant, but I had the same problem before without any variants.

I get these results:

jonas@metultelet ~ $ nm /opt/local/lib/libgd.dylib | grep gdImageCreateFromPng
000000000000dd50 T _gdImageCreateFromPngSource
jonas@metultelet ~ $ nm /opt/local/lib/libgd.dylib | grep gdImagePng
000000000000dd80 T _gdImagePngToSink
jonas@metultelet ~ $ 

[ryandesign (Ryan Carsten Schmidt)]

Ok, that seems to confirm that several png-related functions are missing from gd2, which explains why graphviz can't find them. They are present in my gd2, regardless whether I use the no_x11 variant or not.

Can you please build gd2 again, without the no_x11 or universal variants, and without parallel building:

sudo port clean gd2
sudo port destroot gd2 -no_x11 -universal build.jobs=1
cp /opt/local/var/macports/logs/*_gd2/main.log ~/Desktop/
sudo port -n upgrade --force gd2 -no_x11 -universal

Then attach the main.log, which is now on your Desktop, to this ticket, and I'll compare it with mine.

[jonasjonas (Frank Hellenkamp)]

build log for gd2

[jonasjonas (Frank Hellenkamp)]

I attached the build log for gd2 for comparison.

The problem seems to remain (missing symbols).

[ryandesign (Ryan Carsten Schmidt)]

The suspicious line in your log is:

:info:configure checking for libpng12-config... /usr/bin/libpng12-config

That file is not a part of any version of Mac OS X that I've used up to and including Snow Leopard, so I'm surprised you have that file.

I have patched gd2 in r78153 to no longer look for a libpng12-config, since MacPorts libpng is now at version 1.4.x which doesn't have a libpng12-config. This should allow you to install gd2 properly, and then build graphviz properly.

But nothing other than Mac OS X should be installing things in prefix /usr, so I recommend you remove /usr/bin/libpng12-config and any other parts of libpng in /usr/bin, /usr/include, /usr/lib, etc. They are not supposed to be there.

[ryandesign (Ryan Carsten Schmidt)]

I increased gd2's revision in r78154 so you should only have to wait an hour or so, then "sudo port selfupdate" and "sudo port upgrade gd2" to get the fix.

[jonasjonas (Frank Hellenkamp)]

Interesting - a search on my system for libpng12 returns the following files + a lot of symbolic links which i did not list:

/Developer/SDKs/MacOSX10.6.sdk/usr/X11/lib/libpng12.0.dylib
/Developer/SDKs/MacOSX10.6.sdk/usr/X11/include/libpng12
/usr/X11/include/libpng12
/usr/X11/lib/pkgconfig/libpng12.pc
/usr/X11/lib/libpng12.0.dylib
/usr/X11/bin/libpng12-config
/usr/lib/libpng12.a
/usr/lib/libpng12.0.1.2.8.dylib
/usr/bin/libpng12-config

So it seems to be part of the Developer Tools/SDK.

I will rename the "/usr/bin/libpng12-config" for testing - but if libpng12 is part of the official SDK we would have to find another workaround.

Thanks alot for your help!

[jonasjonas (Frank Hellenkamp)]

Sorry, I missed the second message so forget the workaround part in my last message... ;-)

The new build was successful.

Thanks again!

[ryandesign (Ryan Carsten Schmidt)]

Replying to jonas@…:

I will rename the "/usr/bin/libpng12-config" for testing - but if libpng12 is part of the official SDK we would have to find another workaround.

libpng files in prefix /usr/X11 (/usr/X11/bin, /usr/X11/include, /usr/X11/lib), and in prefix /Developer/SDKs/*/usr/X11, are part of Mac OS X, should stay where they are, and are not the issue here. The issue is libpng files in prefix /usr (/usr/bin, /usr/include, /usr/lib), which are not a part of Mac OS X and should not be there.