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[MarcRandolph <mrand@xxxxxxxxx>]

Howdy, and thank you for helping to improve lirc by opening this ticket.

This is all that I see on your build log:
make -f scripts/Makefile.build obj=/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev
  gcc -Wp,-MD,/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/.lirc_dev.o.d  -nostdinc -isystem /usr/lib/gcc/x86_64-linux-gnu/4.4.3/include  -Iinclude  -I/usr/src/linux-headers-2.6.32-19-generic/arch/x86/include -include include/linux/autoconf.h -Iubuntu/include  -D__KERNEL__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Werror-implicit-function-declaration -Wno-format-security -fno-delete-null-pointer-checks -O2 -m64 -mtune=generic -mno-red-zone -mcmodel=kernel -funit-at-a-time -maccumulate-outgoing-args -fstack-protector -DCONFIG_AS_CFI=1 -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -pipe -Wno-sign-compare -fno-asynchronous-unwind-tables -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -Wframe-larger-than=1024 -fno-omit-frame-pointer -fno-optimize-sibling-calls -pg -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow -fno-dwarf2-cfi-asm -fconserve-stack -DIRCTL_DEV_MAJOR=61 -DEXPORT_SYMTAB -DHAVE_CONFIG_H -I. -I. -I../.. -I/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/. -I/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/ -I/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/../.. -I/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/../.. -I/lib/modules/2.6.32-19-generic/build/include/ -I/lib/modules/2.6.32-19-generic/build/drivers/media/video/  -DMODULE -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(lirc_dev)"  -D"KBUILD_MODNAME=KBUILD_STR(lirc_dev)"  -c -o /var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/.tmp_lirc_dev.o /var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/lirc_dev.c
/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/lirc_dev.c: In function ‘irctl_open’:
/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/lirc_dev.c:544: warning: ‘retval’ may be used uninitialized in this function
  set -e ; perl /usr/src/linux-headers-2.6.32-19-generic/scripts/recordmcount.pl "x86_64" "64" "objdump" "objcopy" "gcc" "ld" "nm" "" "" "1" "/var/lib/dkms/lirc/0.8.6/build/drivers/lirc_dev/lirc_dev.o";
Segmentation fault (core dumped)

A segmentation fault strikes me as pretty strange. Could you please try the patch attached to 
https://bugs.launchpad.net/ubuntu/+source/lirc/+bug/555906
and see if that fixes your problem?

** Changed in: lirc (Ubuntu)
       Status: New => Incomplete

-- 
package lirc-modules-source 0.8.6-0ubuntu4 failed to install/upgrade: lirc kernel module failed to build
https://bugs.launchpad.net/bugs/559172
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Status in “lirc” package in Ubuntu: Incomplete

Bug description:
Binary package hint: lirc

I was installing it

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: lirc-modules-source 0.8.6-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
Architecture: amd64
Date: Fri Apr  9 13:31:04 2010
ErrorMessage: lirc kernel module failed to build
PackageArchitecture: all
PackageVersion: 0.8.6-0ubuntu4
SourcePackage: lirc
Title: package lirc-modules-source 0.8.6-0ubuntu4 failed to install/upgrade: lirc kernel module failed to build