Make picotool build on FreeBSD

[arg08]

Picotool currently doesn't quite build on FreeBSD because libusb (which is part of the base system rather than an add-on package) is just 'libusb' rather than 'libusb-1.0' even though it's compatible with the Linux -1.0 version.

So very simple patch makes it all work:

diff --git a/cmake/FindLIBUSB.cmake b/cmake/FindLIBUSB.cmake
index c8cc62c..560e023 100644
--- a/cmake/FindLIBUSB.cmake
+++ b/cmake/FindLIBUSB.cmake
@@ -20,7 +20,7 @@ else (LIBUSB_INCLUDE_DIR AND LIBUSB_LIBRARIES)
ENDIF(NOT WIN32)
FIND_PATH(LIBUSB_INCLUDE_DIR libusb.h
PATHS ${PC_LIBUSB_INCLUDEDIR} ${PC_LIBUSB_INCLUDE_DIRS})

• FIND_LIBRARY(LIBUSB_LIBRARIES NAMES usb-1.0

• FIND_LIBRARY(LIBUSB_LIBRARIES NAMES usb-1.0 usb
  PATHS ${PC_LIBUSB_LIBDIR} ${PC_LIBUSB_LIBRARY_DIRS})
  include(FindPackageHandleStandardArgs)
  FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBUSB DEFAULT_MSG LIBUSB_LIBRARIES LIBUSB_INCLUDE_DIR)

ie. just add "usb" after "usb-1.0" on the FIND_LIBRARY line.

[aallan]

See also raspberrypi/pico-sdk#396.

[lurch]

Thanks, I've incorporated this suggestion into #27 👍

[lurch]

Fixed by 757f2ae ?

[faelpinho]

Just for note: I could build and install on Manjaro just forcing include to libusb.
More: https://faelpinho.medium.com/how-to-install-picotool-on-manjaro-linux-6a5a3cfaf743