Linux 如何使 libusb 库对另一个程序可见？
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How to make libusb library visible to another program?
提问by LA_
I am trying to compile hidapilibrary. In order to compile that, I need libusb-1.0. I've downloaded that, configured, made and installed to /usr/local/lib. But when I try to compile hidapi, it doesn't see libusb-1.0:
我正在尝试编译hidapi库。为了编译它，我需要libusb-1.0。我已经下载、配置、制作并安装到/usr/local/lib. 但是当我尝试编译时hidapi，它没有看到libusb-1.0：
cc -Wall -g -c -I../hidapi
pkg-config libusb-1.0 --cflagshid-libusb.c -o hid-libusb.o -L/usr/local/lib Package libusb-1.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `libusb-1.0.pc' to the PKG_CONFIG_PATH environment variable No package 'libusb-1.0' found /bin/sh: cc: not found make: *[hid-libusb.o] Error 127
cc -Wall -g -c -I../hidapi
pkg-config libusb-1.0 --cflagshid-libusb.c -o hid-libusb.o -L/usr/local/lib 在 pkg-config 搜索路径中找不到包 libusb-1.0。也许您应该将包含“libusb-1.0.pc”的目录添加到 PKG_CONFIG_PATH 环境变量中 No package 'libusb-1.0' found /bin/sh: cc: not found make: *[hid-libusb.o] Error 127
How can I fix that?
我该如何解决？
(compilation happens on Synology NAS)
（编译在 Synology NAS 上进行）
采纳答案by je4d
Since you installed to /usr/local/lib, pkg-configwill not find your installation unless you set PKG_CONFIG_PATHappropriately
由于您安装到/usr/local/lib，pkg-config除非您PKG_CONFIG_PATH适当设置，否则将找不到您的安装
Try running:
尝试运行：
export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig"
in your shell and then re-attempting to build your code
在你的 shell 中，然后重新尝试构建你的代码
