GraphicsMagick @1.3.12 build failure with rogue libltdl in /usr/local/lib

[mcohen@…]

I'm unable to get GraphicsMagick to build. I'm working off a recent upgrade to lion, Xcode 4.1 and macports 2.03.

I believe I followed the migration instructions at wiki:Migration correctly; after installing Xcode 4.1, I did a port selfupdate to 2.03, updated my macports.conf (I just copied the macports.conf.default over what was there previously since I had never made any changes) uninstalled all my previously installed ports, and reinstalled some that I needed. I was able to successfully reinstall the ruby and rb-rubygems ports, so I know macports is basically working, but GraphicsMagick is erroring out. For what it's worth, I did not have GraphicsMagick installed prior to all the system upgrading; this is a first-time install. I'm attaching the log. Thanks for any help you can offer!

[ryandesign (Ryan Carsten Schmidt)]

From your log we see:

:info:build ld: warning: ignoring file /usr/local/lib/libltdl.dylib, file was built for unsupported file format which is not the architecture being linked (x86_64)
:info:build Undefined symbols for architecture x86_64:
:info:build   "_lt_dlclose", referenced from:
:info:build       _DestroyModuleInfo in magick_libGraphicsMagick_la-module.o
:info:build       _ExecuteModuleProcess in magick_libGraphicsMagick_la-module.o
:info:build       _OpenModule in magick_libGraphicsMagick_la-module.o
:info:build   "_lt_dlerror", referenced from:
:info:build       _DestroyModuleInfo in magick_libGraphicsMagick_la-module.o
:info:build       _ExecuteModuleProcess in magick_libGraphicsMagick_la-module.o
:info:build       _InitializeMagickModules in magick_libGraphicsMagick_la-module.o
:info:build       _OpenModule in magick_libGraphicsMagick_la-module.o
:info:build   "_lt_dlexit", referenced from:
:info:build       _DestroyModuleInfo in magick_libGraphicsMagick_la-module.o
:info:build   "_lt_dlopen", referenced from:
:info:build       _ExecuteModuleProcess in magick_libGraphicsMagick_la-module.o
:info:build       _OpenModule in magick_libGraphicsMagick_la-module.o
:info:build   "_lt_dlsym", referenced from:
:info:build       _ExecuteModuleProcess in magick_libGraphicsMagick_la-module.o
:info:build       _OpenModule in magick_libGraphicsMagick_la-module.o
:info:build   "_lt_dlinit", referenced from:
:info:build       _InitializeMagickModules in magick_libGraphicsMagick_la-module.o
:info:build ld: symbol(s) not found for architecture x86_64

So you have a rogue copy of the libtool dynamic loader in /usr/local that is causing problems. This type of problem is why we don't support people having things installed in /usr/local while using MacPorts. Please move /usr/local aside (e.g. rename it to /usr/local-off), clean GraphicsMagick, and try again.

[mcohen@…]

Ah. Thanks, that did it.