From c5787d94884be67a61d738c08160e08451e78752 Mon Sep 17 00:00:00 2001 From: Stephan Linz Date: Fri, 6 Sep 2013 15:03:54 +0200 Subject: [PATCH] configure: expand library search for libftd2xx Error was: checking for library containing FT_GetLibraryVersion... no configure: error: You appear to be missing the FTD2xx driver library. Reason were two cases: Case one: The FTD2xx library uses clock_gettime() and in normal cases the linker will find the function in the libc library. Most (older) systems require the program be linked with the librt library to use these (see man clock_gettime: Link with -lrt). Case two: You can rebuild the FTD2xx library (relink from the object files) against the primary (system wide installed) libusb-1.0. So you avoid mixed code (GPL with proprietary code) in the FTD2xx library. In this case, the FTD2xx library provides no private (linked in) libusb-1.0 functionality and require the program be linked with the libftd2xx __AND__ the libusb-1.0 to resolve all the libusb-1.0 symbols. Change-Id: Iaf9a35ab4257e37b98dccd47667378ad2a64b7ed Signed-off-by: Stephan Linz Reviewed-on: http://openocd.zylin.com/1614 Tested-by: jenkins Reviewed-by: Andreas Fritiofson Reviewed-by: Xiaofan --- configure.ac | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure.ac b/configure.ac index 9d5c0a1f55..038212cdb6 100644 --- a/configure.ac +++ b/configure.ac @@ -908,7 +908,7 @@ if test $build_ft2232_ftd2xx = yes -o $build_presto_ftd2xx = yes -o $build_usb_b ]) AC_SEARCH_LIBS([FT_GetLibraryVersion],[ftd2xx],,[ AC_MSG_ERROR([You appear to be missing the FTD2xx driver library.]) - ],[]) + ],[-lrt -lusb-1.0]) fi fi fi # linux -- 2.30.2