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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH next 1/2] lirc-tools: remove useless libusb-compat dependnecy
Date: Wed, 30 Aug 2017 22:29:46 +0200	[thread overview]
Message-ID: <20170830222946.5ad6f28b@windsurf.lan> (raw)
In-Reply-To: <c21debe1fe36162b182803d45b5e6b0ab4ff575d.1503898456.git.baruch@tkos.co.il>

Hello,

On Mon, 28 Aug 2017 08:34:15 +0300, Baruch Siach wrote:
> The only plugin that uses libusb/libusb-compat is the ftdi plugin. This
> plugin needs libftdi1 that already depends on libusb in Buildroot. So in
> practice libusb-compat is never actually used; we can safely remove it.
> The libusb dependency is implicit in the libftdi1 optional dependency.

Are you sure ?

From the configure.ac script:

AC_CHECK_HEADERS([usb.h libusb-1.0/libusb.h libusb.h])
AC_CHECK_LIB([usb],[usb_get_string],[usb_libs="-lusb"],,)
AM_CONDITIONAL([BUILD_USB],[test x$usb_libs != x])
AC_CHECK_LIB([usb-1.0],[libusb_lock_events],[usb_libs="$usb_libs -lusb-1.0"],,)

In addition, I do see a number of plugins linked with libusb-0.1:

$ readelf -d output/target/usr/lib/lirc/plugins/* | grep libusb-0.1
 0x00000001 (NEEDED)                     Shared library: [libusb-0.1.so.4]
 0x00000001 (NEEDED)                     Shared library: [libusb-0.1.so.4]
 0x00000001 (NEEDED)                     Shared library: [libusb-0.1.so.4]
 0x00000001 (NEEDED)                     Shared library: [libusb-0.1.so.4]
 0x00000001 (NEEDED)                     Shared library: [libusb-0.1.so.4]

Am I missing something ?

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

  parent reply	other threads:[~2017-08-30 20:29 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-28  5:34 [Buildroot] [PATCH next 1/2] lirc-tools: remove useless libusb-compat dependnecy Baruch Siach
2017-08-28  5:34 ` [Buildroot] [PATCH next 2/2] libftdi1: bump to version 1.4 Baruch Siach
2017-08-30 20:30   ` Thomas Petazzoni
2017-08-30 20:29 ` Thomas Petazzoni [this message]
2017-08-31  4:18   ` [Buildroot] [PATCH next 1/2] lirc-tools: remove useless libusb-compat dependnecy Baruch Siach
2017-08-31  7:01     ` Thomas Petazzoni

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