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2010-01-25 Colin Watson <cjwatson@ubuntu.com>

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* configure.ac: Check for Linux device-mapper support.
	* util/hostdisk.c (device_is_mapped): New function.
	(find_partition_start): New function, partly broken out from
	linux_find_partition and grub_util_biosdisk_get_grub_dev but with
	device-mapper support added.
	(linux_find_partition): Use find_partition_start.
	(convert_system_partition_to_system_disk): Add `st' argument.
	Support Linux /dev/mapper/* devices if device-mapper support is
	available; only DM-RAID devices are understood at present.
	(find_system_device): Add `st' argument.  Pass it to
	convert_system_partition_to_system_disk.
	(grub_util_biosdisk_get_grub_dev): Pass stat result to
	find_system_device and convert_system_partition_to_system_disk.  Use
	find_partition_start.
This commit is contained in:
Colin Watson 2010-01-25 17:47:51 +00:00
parent 847effd8bf
commit 7181e2281f
3 changed files with 242 additions and 34 deletions
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17
configure.ac
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@ -659,6 +659,23 @@ AC_SUBST([enable_grub_mkfont])
AC_SUBST([freetype_cflags])
AC_SUBST([freetype_libs])
AC_ARG_ENABLE([device-mapper],
[AS_HELP_STRING([--enable-device-mapper],
[enable Linux device-mapper support (default=guessed)])])
if test x"$enable_device_mapper" = xno ; then
device_mapper_excuse="explicitly disabled"
fi
if test x"$device_mapper_excuse" = x ; then
# Check for device-mapper library.
AC_CHECK_LIB([devmapper], [dm_task_create],
[LDFLAGS="$LDFLAGS -ldevmapper"
AC_DEFINE([HAVE_DEVICE_MAPPER], [1],
[Define to 1 if you have the devmapper library.])],
[device_mapper_excuse="need devmapper library"])
AC_SUBST([LIBDEVMAPPER])
fi
AC_SUBST(ASFLAGS)
# Output files.