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Message-ID: | <461D3A5C.479035C3@dessent.net> |
Date: | Wed, 11 Apr 2007 12:43:24 -0700 |
From: | Brian Dessent <brian AT dessent DOT net> |
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To: | cygwin AT cygwin DOT com |
Subject: | Re: 1.5.24-2: libusb-win32 |
References: | <000101c77c6f$86b98df0$0d01a8c0 AT MAURITSHULPJE> |
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Maurits Kooiman wrote: > I used your libusb-win32 (the testlibusb worked). > mine linker couldn’t find the usb functions. > > Do you have any idea where to look? > > Regards > Maurits Kooiman > > Result of the make-file: > > make -k all > Building file: ../main.cpp > Invoking: GCC C++ Compiler > g++ -O3 -Wall -c -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.d" > -o"main.o" "../main.cpp" > Finished building: ../main.cpp > > Building target: NXTinterface.exe > Invoking: GCC C++ Linker > g++ -o"NXTinterface.exe" ./main.o > ./main.o:main.cpp:(.text+0xe1): undefined reference to `_usb_init' > ./main.o:main.cpp:(.text+0xe6): undefined reference to `_usb_find_busses' > ./main.o:main.cpp:(.text+0xeb): undefined reference to `_usb_find_devices' > ./main.o:main.cpp:(.text+0xf0): undefined reference to `_usb_get_busses' > ./main.o:main.cpp:(.text+0xf5): undefined reference to `_usb_get_busses' > collect2: ld returned 1 exit status How do you expect this to ever work? You're not telling to link against the library. It's not a mind reader, you need to give it -lusb. Brian -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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