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Re: Problem linking with static libraries on Darwin ("not the architectu

From: Bob Friesenhahn
Subject: Re: Problem linking with static libraries on Darwin ("not the architecture being linked")
Date: Thu, 18 Oct 2012 21:15:27 -0500 (CDT)
User-agent: Alpine 2.01 (GSO 1266 2009-07-14)

$ make CFLAGS='-arch x86_64' CXXFLAGS='-arch x86_64' LDFLAGS='-framework 
CoreFoundation -framework CoreServices 

But when the build goes to link an executable:

/bin/sh ./libtool --tag=CXX   --mode=link c++  -arch x86_64  -framework 
CoreFoundation -framework CoreServices 
-L/Users/bradenmcdaniel/build/sfAgent/libs/Release_Static/lib -o xqilla 
xqilla-commandline.o -lpthread 
libtool: link: c++ -arch x86_64 -o xqilla xqilla-commandline.o 
-Wl,-bind_at_load  -L/Users/bradenmcdaniel/build/my/install/root/lib 
./.libs/libxqilla.a -lpthread 
/Users/bradenmcdaniel/build/my/install/root/lib/libcrypto.a -framework 
CoreServices -framework CoreFoundation
ld: warning: ignoring file ./.libs/libxqilla.a, file was built for archive 
which is not the architecture being linked (x86_64): ./.libs/libxqilla.a
Undefined symbols for architecture x86_64:
  "NSFixupFilter::NSFixupFilter(EventHandler*, XPath2MemoryManager*)", 
referenced from:
      _main in xqilla-commandline.o
  "NSFixupFilter::~NSFixupFilter()", referenced from:
      _main in xqilla-commandline.o
(…and many more symbols that would be resolved by libxqilla.)

Has anyone else seen this sort of thing?  And might this warning from the 
linker indicate something other than what it claims?

It looks like the program called 'c++' (is it GCC? clang?) is either not passing the -arch option down to 'ld' or 'ld' does not respond to it.

You might try adding


and/or add '-v' to CXXFLAGS to cause the compiler to dump the details of what it is doing so you can see the arguments it is passing to the linker.

Also please check that ./.libs/libxqilla.a really does contain 64-bit objects. Some linkers use the mode from the first object file they encounter.

Bob Friesenhahn
GraphicsMagick Maintainer,

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