这是我的 PKG_CONFIG_PATH 内容：
/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
locate lv2.pc这是（lv2 是我尝试链接的库）的输出
/usr/local/lib/pkgconfig/lv2.pc
但这是输出pkg-config --modversion lv2
Package lv2 was not found in the pkg-config search path.
Perhaps you should add the directory containing `lv2.pc'
to the PKG_CONFIG_PATH environment variable
No package 'lv2' found
有什么建议吗？我正在运行 gentoo 仅供参考。预先感谢您的帮助！