在编写问题时，我重读了./configure的输出，并理解为"/Volumes/lpd-dev/armhf/usr/lib/pkgconfig"指向--prefix=/usr，但是由于我们是交叉编译的，所以指向错误的位置！

During writing the question I reread ones more ./configure's output and understood that "/Volumes/lpd-dev/armhf/usr/lib/pkgconfig" points to --prefix=/usr but since we are cross-compiling is points to wrong location!

只需移动或删除.../armhf/usr/lib/pkgconfig已解决的问题.

Simply move or remove .../armhf/usr/lib/pkgconfig fixed problem.

    ...
curl version:     7.64.1-DEV
SSL:              enabled (OpenSSL)
SSH:              no      (--with-libssh2)
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