GraphicsMagick，架構x86_64的未定義符號

Question

我想在Xcode4中安裝GraphicsMagick，當我執行命令'make'時出現此錯誤。

/usr/bin/ranlib: file: magick/.libs/libGraphicsMagick.a(magick_libGraphicsMagick_la-module.o) has no symbols 
/usr/bin/ranlib: file: magick/.libs/libGraphicsMagick.a(magick_libGraphicsMagick_la-PreRvIcccm.o) has no symbols 
libtool: link: ranlib magick/.libs/libGraphicsMagick.a 
ranlib: file: magick/.libs/libGraphicsMagick.a(magick_libGraphicsMagick_la-module.o) has no symbols 
ranlib: file: magick/.libs/libGraphicsMagick.a(magick_libGraphicsMagick_la-PreRvIcccm.o) has no symbols 


Undefined symbols for architecture x86_64: 
    "___builtin_object_size", referenced from: 
     _BlurImageScanlines.omp_fn.6 in libGraphicsMagick.a(magick_libGraphicsMagick_la-effect.o) 
     _XShearImage.omp_fn.0 in libGraphicsMagick.a(magick_libGraphicsMagick_la-shear.o) 
     _YShearImage.omp_fn.1 in libGraphicsMagick.a(magick_libGraphicsMagick_la-shear.o) 
ld: symbol(s) not found for architecture x86_64 
collect2: ld returned 1 exit status 
make[1]: *** [utilities/gm] Error 1 
make: *** [install] Error 2 

Answer 1

您可以在這裏找到解決方案。

http://sourceforge.net/projects/graphicsmagick/forums/forum/250738/topic/5221775

Answer 2

GraphicsMagick工具將不會在OS編譯X 10.7（獅子）或10.8（山獅）與默認LLVM GCC/G ++編譯器。解決方法是使用鏘編譯器來代替：

./configure CC=clang [...other config options...] 

這也是一個好主意，用編譯後make check運行單元測試只是爲了安全起見。

這個技巧對我有用，希望它有幫助。