Fixed bug 5221 - libusb isn't detected correctly in CMake

Sven-Hendrik Haase

In CMake I currently have trouble activating hidapi support as libusb-1.0 isn't ever correctly detected as it's searched for by the wrong name.

configure.ac correctly does this:

PKG_CHECK_MODULES([LIBUSB], [libusb-1.0], have_libusb=yes, have_libusb=no)

However, sdlchecks.cmake does this:

pkg_check_modules(LIBUSB libusb)

but it needs to be:

pkg_check_modules(LIBUSB libusb-1.0)

cmake/sdlchecks.cmake

@@ -1077,7 +1077,7 @@ macro(CheckHIDAPI)
       set(HAVE_HIDAPI TRUE)
     else()
       set(HAVE_HIDAPI FALSE)
-      pkg_check_modules(LIBUSB libusb)
+      pkg_check_modules(LIBUSB libusb-1.0)
       if (LIBUSB_FOUND)
         check_include_file(libusb.h HAVE_LIBUSB_H ${LIBUSB_CFLAGS})
         if (HAVE_LIBUSB_H)