通常,当链接器找不到路径中实际存在的库时,这是因为某些二进制不兼容(即大约32/64位)。
在我的情况下,这似乎是不同的,我没有找到一个问题来回答这个问题。
Rapsberry Pi 3b+,Raspbian Stretch Lite,尝试为3TouchPad编译微芯片SDK。
编译失败的原因如下:
mkdir -p build/bin
gcc -o build/bin/2draw build/2draw/2draw.o -Lbuild/bin -lmchp_hmi -L/lib/arm-linux-gnueabihf/ -lusb -Wl,-rpath,\$ORIGIN -lcurses
/usr/bin/ld: cannot find -lusb
collect2: error: ld returned 1 exit status
Makefile:125: recipe for target 'build/bin/2draw' failed
make: *** [build/bin/2draw] Error 1
以下是关于“失踪”图书馆的详细信息:
$ ldconfig -p | grep libusb
libusb-1.0.so.0 (libc6,hard-float) => /lib/arm-linux-gnueabihf/libusb-1.0.so.0
libusb-1.0.so (libc6,hard-float) => /usr/lib/arm-linux-gnueabihf/libusb-1.0.so
libusb-0.1.so.4 (libc6,hard-float) => /lib/arm-linux-gnueabihf/libusb-0.1.so.4
$ file /lib/arm-linux-gnueabihf/libusb-1.0.so.0.1.0
/lib/arm-linux-gnueabihf/libusb-1.0.so.0.1.0: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV), dynamically linked, BuildID[sha1]=a93e56d2846806b7adc76e674493c76e54e3ca9e, stripped
我觉得没问题。我安装了它
sudo apt-get install libusb-1.0-0-dev
.
是否有其他原因阻止链接器查找现有库?
编辑
足够有趣…即使我也无法推断原因。
$ ld -lusb --verbose
GNU ld (GNU Binutils for Raspbian) 2.28
Supported emulations:
armelf_linux_eabi
armelfb_linux_eabi
==================================================
attempt to open //usr/local/lib/arm-linux-gnueabihf/libusb.so failed
attempt to open //usr/local/lib/arm-linux-gnueabihf/libusb.a failed
attempt to open //lib/arm-linux-gnueabihf/libusb.so failed
attempt to open //lib/arm-linux-gnueabihf/libusb.a failed
attempt to open //usr/lib/arm-linux-gnueabihf/libusb.so failed
attempt to open //usr/lib/arm-linux-gnueabihf/libusb.a failed
attempt to open //usr/local/lib/libusb.so failed
attempt to open //usr/local/lib/libusb.a failed
attempt to open //lib/libusb.so failed
attempt to open //lib/libusb.a failed
attempt to open //usr/lib/libusb.so failed
attempt to open //usr/lib/libusb.a failed
attempt to open //usr/arm-linux-gnueabihf/lib/libusb.so failed
attempt to open //usr/arm-linux-gnueabihf/lib/libusb.a failed
ld: cannot find -lusb
