1

I'm installing OpenOCD on my Debian stretch system. When I run ./configure it reports it cannot find libusb.

...
checking for LIBUSB1... no
configure: WARNING: libusb-1.x not found, trying legacy libusb-0.1 as a fallback; consider installing libusb-1.x instead
checking for LIBUSB0... no
...

I have the correct dependencies installed, but I still get the error.

libhidapi-libusb0/stable,now 0.8.0~rc1+git20140818.d17db57+dfsg-1 amd64 [installed,automatic]
libusb-1.0-0/stable,now 2:1.0.21-1 amd64 [installed,automatic]
libusb-1.0-0-dev/stable,now 2:1.0.21-1 amd64 [installed]

What gives?

1

The error message is unhelpful at best.

The OpenOCD README lists pkg-config as a dependency. As soon as pkg-config was installed, the ./configure script was able to find libusb-1.0-0-dev.

...
checking for LIBUSB1... yes
configure: libusb-1.0 header bug workaround: LIBUSB1_CFLAGS changed to "-isystem /usr/include/libusb-1.0"
checking for LIBUSB0... no
...

tl;dr

sudo apt-get install pkg-config

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