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From: Paul Bender <pebender@san.rr.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: Hi, how can I compile udev with cross compilation?
Date: Sat, 20 Feb 2010 16:37:23 +0000	[thread overview]
Message-ID: <4B800FC3.8000808@san.rr.com> (raw)
In-Reply-To: <4B7FB0C6.5070901@gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1198 bytes --]

On 2/20/2010 1:52 AM, huyle wrote:
> Hi,
> I am currently building an linux system for arm board. I am stuck with
> udev. So can you help me with some commands to compile udev with cross
> compilation?
> Thanks for your time

I am cross compiling udev, but not for the ARM.

The only trouble that I have encountered when cross compiling version 
151 is with the configure scripts determination of the pci.ids file 
location. This is caused by autoconf's AC_CHECK_FILES macro generating 
an error when cross compiling. However, this can be worked around by setting

ac_cv_file__usr_share_pci_ids='no'
ac_cv_file__usr_share_hwdata_pci_ids='no'
ac_cv_file__usr_share_misc_pci_ids='no'

in the build system's environment before running configure and setting 
the configure script's --with-pci-ids-path argument.

I have had this work around for so long that I have not given it much 
thought. However, it is relatively easy to fix the configure script so 
that it only attempting to determine the pci.ids file location when 
--with-pci-ids-path is not set. Therefore, I have created and attached a 
patch that should do this. Of course, after applying, you would need to 
rerun autoconf or autoreconf.

[-- Attachment #2: udev-151-pci_ids_path.patch --]
[-- Type: text/plain, Size: 1139 bytes --]

diff -Naur udev-151-old/configure.ac udev-151-new/configure.ac
--- udev-151-old/configure.ac	2010-01-24 23:21:07.000000000 -0800
+++ udev-151-new/configure.ac	2010-02-20 08:21:22.000000000 -0800
@@ -69,15 +69,13 @@
 	PKG_CHECK_MODULES(USBUTILS, usbutils >= 0.82)
 	AC_SUBST([USB_DATABASE], [$($PKG_CONFIG --variable=usbids usbutils)])
 
-	AC_CHECK_FILES([/usr/share/pci.ids], [pciids=/usr/share/pci.ids])
-	AC_CHECK_FILES([/usr/share/hwdata/pci.ids], [pciids=/usr/share/hwdata/pci.ids])
-	AC_CHECK_FILES([/usr/share/misc/pci.ids], [pciids=/usr/share/misc/pci.ids])
 	AC_ARG_WITH(pci-ids-path,
 		AS_HELP_STRING([--pci-ids-path=DIR], [Path to pci.ids file]),
 		[PCI_DATABASE=${withval}],
-		[if test -n "$pciids" ; then
-			PCI_DATABASE="$pciids"
-		else
+		[AC_CHECK_FILES([/usr/share/pci.ids], [PCI_DATABASE=/usr/share/pci.ids])
+		AC_CHECK_FILES([/usr/share/hwdata/pci.ids], [PCI_DATABASE=/usr/share/hwdata/pci.ids])
+		AC_CHECK_FILES([/usr/share/misc/pci.ids], [PCI_DATABASE=/usr/share/misc/pci.ids])
+		if test -x "$PCI_DATABASE" ; then
 			AC_MSG_ERROR([pci.ids not found, try --with-pci-ids-path=])
 		fi])
 	AC_SUBST(PCI_DATABASE)

  reply	other threads:[~2010-02-20 16:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-20  9:52 Hi, how can I compile udev with cross compilation? huyle
2010-02-20 16:37 ` Paul Bender [this message]
2010-02-20 18:20 ` Dan Nicholson
2010-02-20 19:15 ` Paul Bender
2010-02-20 19:26 ` Dan Nicholson

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