libusb: require pkg-config support

An alternative approach to show how much cleaner the pure pkg-config
way is.

This changes the discovery procedures for libusb-1.0 and libusb-0.1,
making them depend on pkg-config being properly installed and
configured, including the necessary build host configuration for the
cross-builds (see
http://www.flameeyes.eu/autotools-mythbuster/pkgconfig/cross-compiling.html)

It should make it possible to compile OpenOCD without changes and
extra effort on GNU/Linux, FreeBSD users would need to supply a .pc
file for their libusb implementation or add LIBUSB1_LIBS and
LIBUSB1_CFLAGS to the configure environment.

Change-Id: I826e378dd1e0d101a549a573b2c63212a7e00b64
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/1467
Reviewed-by: Xiaofan <xiaofanc@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Tested-by: Spencer Oliver <spen@spen-soft.co.uk>
This commit is contained in:
Paul Fertser
2013-09-11 23:07:59 +02:00
committed by Andreas Fritiofson
parent 10df176b0f
commit 191a5736c2
12 changed files with 46 additions and 19 deletions

View File

@@ -278,7 +278,7 @@ int win_select(int max_fd, fd_set *rfds, fd_set *wfds, fd_set *efds, struct time
#endif
#if defined HAVE_LIBUSB1 && !defined HAVE_LIBUSB_ERROR_NAME
#include <libusb-1.0/libusb.h>
#include <libusb.h>
/* Verbatim from git://git.libusb.org/libusb.git tag 1.0.9
* The libusb_error enum is compatible down to v0.9.1
*/