Mac OS X 中与 vrpn 和 libusb 的链接错误
Linking error with vrpn and libusb in Mac OS X
当我尝试在 Mac 上编译 vrpn 7.33
时出现以下错误。它说 libusb
是针对与正在编译的 vrpn
不同的体系结构编译的:
Linking CXX executable client_and_server
ld: warning: ignoring file /usr/local/lib/libusb-1.0.dylib, file was built for i386 which is not the architecture being linked (x86_64): /usr/local/lib/libusb-1.0.dylib
Undefined symbols for architecture x86_64:
"_libusb_claim_interface", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_close", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_exit", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_init", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_open_device_with_vid_pid", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [server_src/client_and_server] Error 1
make[1]: *** [server_src/CMakeFiles/client_and_server.dir/all] Error 2
make: *** [all] Error 2
但是当我重新编译 libusb
将架构更改为 x86_64
时,我开始收到以下错误:
Linking CXX executable client_and_server
ld: warning: ignoring file /usr/local/lib/libusb-1.0.dylib, file was built for x86_64 which is not the architecture being linked (i386): /usr/local/lib/libusb-1.0.dylib
Undefined symbols for architecture i386:
"_libusb_claim_interface", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_close", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_exit", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_init", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_open_device_with_vid_pid", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [server_src/client_and_server] Error 1
make[1]: *** [server_src/CMakeFiles/client_and_server.dir/all] Error 2
make: *** [all] Error 2
注意链接器现在如何搜索原始 i386
架构。
为什么 vrpn
在这两种情况下都抱怨?
vrpn
正在同时为多个体系结构编译。这就是为什么为单一架构编译 libusb
不起作用的原因。
解决方案是使用以下命令序列同时为两个架构师编译libusb
:
./configure
make CFLAGS="-arch x86_64 -arch i386" LDFLAGS="-arch x86_64 -arch i386"
sudo make install
如果您想了解有关在 Mac OS X 中编译通用二进制文件的更多信息,请检查此 link:
当我尝试在 Mac 上编译 vrpn 7.33
时出现以下错误。它说 libusb
是针对与正在编译的 vrpn
不同的体系结构编译的:
Linking CXX executable client_and_server
ld: warning: ignoring file /usr/local/lib/libusb-1.0.dylib, file was built for i386 which is not the architecture being linked (x86_64): /usr/local/lib/libusb-1.0.dylib
Undefined symbols for architecture x86_64:
"_libusb_claim_interface", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_close", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_exit", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_init", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_open_device_with_vid_pid", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [server_src/client_and_server] Error 1
make[1]: *** [server_src/CMakeFiles/client_and_server.dir/all] Error 2
make: *** [all] Error 2
但是当我重新编译 libusb
将架构更改为 x86_64
时,我开始收到以下错误:
Linking CXX executable client_and_server
ld: warning: ignoring file /usr/local/lib/libusb-1.0.dylib, file was built for x86_64 which is not the architecture being linked (i386): /usr/local/lib/libusb-1.0.dylib
Undefined symbols for architecture i386:
"_libusb_claim_interface", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_close", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_exit", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::~vrpn_Tracker_USB() in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_init", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
"_libusb_open_device_with_vid_pid", referenced from:
vrpn_Tracker_USB::vrpn_Tracker_USB(char const*, vrpn_Connection*, unsigned short, unsigned short, long) in libvrpnserver.a(vrpn_Tracker.C.o)
vrpn_Tracker_USB::mainloop() in libvrpnserver.a(vrpn_Tracker.C.o)
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [server_src/client_and_server] Error 1
make[1]: *** [server_src/CMakeFiles/client_and_server.dir/all] Error 2
make: *** [all] Error 2
注意链接器现在如何搜索原始 i386
架构。
为什么 vrpn
在这两种情况下都抱怨?
vrpn
正在同时为多个体系结构编译。这就是为什么为单一架构编译 libusb
不起作用的原因。
解决方案是使用以下命令序列同时为两个架构师编译libusb
:
./configure
make CFLAGS="-arch x86_64 -arch i386" LDFLAGS="-arch x86_64 -arch i386"
sudo make install
如果您想了解有关在 Mac OS X 中编译通用二进制文件的更多信息,请检查此 link: