RSB fails to build qemu.bset

[Cláudio Maia]

Hello everyone,

I'm trying to build the toolchain for the build set devel/qemu.bset with the goal of executing RTEMS applications on top of LEON3 bsp on QEMU.
Unfortunately, when I build the toolchain using:

$ ../source-builder/sb-set-builder --prefix=$RTEMS/5 devel/qemu.bset

the following error occurs, for which I don't have a clue on how to fix:

...
config: devel/qemu-git-1.cfg
package: qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1
Creating source directory: sources/git
git: clone: git://git.qemu-project.org/qemu.git -> sources/git/qemu.git
git: pull: git://git.qemu-project.org/qemu.git
git: checkout: git://git.qemu-project.org/qemu.git => 42d58e7c6760cb9c55627c28ae538e27dcf2f144
git: submodule: git://git.qemu-project.org/qemu.git <= dtc
download: http://patchwork.ozlabs.org/patch/406903/raw -> patches/Provide-the-missing-LIBUSB_LOG_LEVEL_-for-older-libusb-or-FreeBSD.-Providing-just-the-needed-value-as-a-defined..patch
 redirect: http://patchwork.ozlabs.org/project/qemu-devel/patch/1415176522-5944-1-git-send-email-...<see log>
downloading: patches/Provide-the-missing-LIBUSB_LOG_LEVEL_-for-older-libusb-or-FreeBSD.-Providing-just-the-needed-value-as-a-defined..patch - 666.0 bytes of 666.0 bytes (100%)
download: https://gaisler.org/qemu/0001-LEON3-Add-emulation-of-AMBA-plug-play.patch -> patches/0001-LEON3-Add-emulation-of-AMBA-plug-play.patch
downloading: patches/0001-LEON3-Add-emulation-of-AMBA-plug-play.patch - 6.5kB of 6.5kB (100%)  
download: https://gaisler.org/qemu/0002-LEON3-Build-AMBA-plug-and-play-records-from-high-lev.patch -> patches/0002-LEON3-Build-AMBA-plug-and-play-records-from-high-lev.patch
downloading: patches/0002-LEON3-Build-AMBA-plug-and-play-records-from-high-lev.patch - 8.5kB of 8.5kB (100%)  
download: https://gaisler.org/qemu/0003-LEON3-Init-UART-timers-and-CPU-if-we-run-a-RAM-image.patch -> patches/0003-LEON3-Init-UART-timers-and-CPU-if-we-run-a-RAM-image.patch
downloading: patches/0003-LEON3-Init-UART-timers-and-CPU-if-we-run-a-RAM-image.patch - 2.0kB of 2.0kB (100%)  
download: http://git.rtems.org/rtems-tools/plain/tools/qemu/0001-openrisc-terminate-qemu-process...<see log> -> patches/0001-openrisc-terminate-qemu-process-upon-receiving-a-hal.patch
 redirect: https://git.rtems.org/rtems-tools/plain/tools/qemu/0001-openrisc-terminate-qemu-proces...<see log>
downloading: patches/0001-openrisc-terminate-qemu-process-upon-receiving-a-hal.patch - 943.0 bytes of 943.0 bytes (100%)
building: qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1
error: building qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1
Build FAILED
  See error report: rsb-report-qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1.txt
error: building qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1
Build Set: Time 0:07:51.094391
Build FAILED


The last lines of the log file:

...
  CC    tests/qemu-iotests/socket_scm_helper.o
  GEN   qemu-options.texi
  GEN   qemu-monitor.texi
  GEN   qemu-img-cmds.texi
  GEN   qemu-tech.html
  GEN   qemu-nbd.8
  GEN   qmp-commands.txt
  GEN   kvm_stat.1
Unescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/^\@strong{ <-- HERE (.*)}$/ at /home/crrm/Documents/projects/rtems/rsb/rtems/build/qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1/qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144/scripts/texi2pod.pl line 320.
  GEN   qga/qapi-generated/qga-qapi-types.h
Makefile:509: recipe for target 'qemu-nbd.8' failed
make: *** [qemu-nbd.8] Error 255
make: *** Waiting for unfinished jobs....
Unescaped left brace in regex is illegal here in regex; marked by <-- HERE in m/^\@strong{ <-- HERE (.*)}$/ at /home/crrm/Documents/projects/rtems/rsb/rtems/build/qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1/qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144/scripts/texi2pod.pl line 320.
Makefile:515: recipe for target 'kvm_stat.1' failed
make: *** [kvm_stat.1] Error 255
shell cmd failed: /bin/sh -ex  /home/crrm/Documents/projects/rtems/rsb/rtems/build/qemu-42d58e7c6760cb9c55627c28ae538e27dcf2f144-x86_64-linux-gnu-1/do-build

Can someone help me fixing this?

As a side note, I was looking for information on RTEMS documentation about how to run RTEMS applications on LEON3 under QEMU, and I could not find any.
Do you know if such information exists?

Regards,
Cláudio