kdeskbar failed on x86_64 dockyard-devel (c64.arklinux.org)

kdeskbar failed to build on x86_64 for dockyard-devel.
Last 250 lines of build log:

Installing kdeskbar-1.2-1ark.src.rpm
Building target platforms: x86_64
Building for target x86_64
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.63762
+ umask 022
+ cd /build-kdeskbar-x86_64/BUILD
+ cd /build-kdeskbar-x86_64/BUILD
+ rm -rf kdeskbar-1.2
+ /usr/bin/bzip2 -dc /usr/src/ark/SOURCES/kdeskbar-1.2.tar.bz2
+ tar -xf -
+ STATUS=0
+ '[' 0 -ne 0 ']'
+ cd kdeskbar-1.2
++ /usr/bin/id -u
+ '[' 0 = 0 ']'
+ /bin/chown -Rhf root .
++ /usr/bin/id -u
+ '[' 0 = 0 ']'
+ /bin/chgrp -Rhf root .
+ /bin/chmod -Rf a+rX,g-w,o-w .
+ export QTDIR=/usr/lib64/qt3
+ QTDIR=/usr/lib64/qt3
+ rm -rf admin
+ cp -a /usr/share/autoconf/kde admin
+ '[' -e Makefile.cvs ']'
+ make -f Makefile.cvs
This Makefile is only for the CVS repository
This will be deleted before making the distribution

*** YOU'RE USING UNSERMAKE.
*** GOOD LUCK!! :)
*** Creating acinclude.m4
make[2]: Entering directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
make[2]: Leaving directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
*** Creating list of subdirectories
make[2]: Entering directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
cd . && make -f admin/Makefile.common subdirs
make[3]: Entering directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
make[3]: Leaving directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
make[2]: Leaving directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
*** Creating configure.files
*** Creating configure.in
make[2]: Entering directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
cd . && make -f admin/Makefile.common configure.in ;
make[3]: Entering directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
make[3]: Leaving directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
make[2]: Leaving directory `/build-kdeskbar-x86_64/BUILD/kdeskbar-1.2'
*** Creating aclocal.m4
acinclude.m4:3706: the serial number must appear before any macro definition
acinclude.m4:3751: the serial number must appear before any macro definition
acinclude.m4:3796: the serial number must appear before any macro definition
acinclude.m4:6005: the serial number must appear before any macro definition
/usr/share/aclocal/smpeg.m4:13: warning: underquoted definition of AM_PATH_SMPEG
/usr/share/aclocal/smpeg.m4:13:   run info '(automake)Extending aclocal'
/usr/share/aclocal/smpeg.m4:13:   or see http://sources.redhat.com/automake/automake.html#Extending-aclocal
*** Creating configure
*** Creating config.h template
*** Creating Makefile templates
*** Creating date/time stamp
*** Finished
    Don't forget to run ./configure
    If you haven't done so in a while, run ./configure --help
+ '[' -e Makefile.dist ']'
+ '[' '!' -e Makefile.cvs -a '!' -e Makefile.dist ']'
+ '[' -e configure ']'
+ CFLAGS='-O2 -fomit-frame-pointer -fweb -frename-registers'
+ export CFLAGS
+ CXXFLAGS='-O2 -fomit-frame-pointer -fweb -frename-registers -fvisibility-inlines-hidden'
+ export CXXFLAGS
+ FFLAGS='-O2 -fomit-frame-pointer -fweb -frename-registers'
+ export FFLAGS
+ '[' 0 = 1 ']'
+ '[' 0 = 1 ']'
+ CROSSCOMPILE='--target=x86_64-ark-linux --host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu'
+ '[' %cross '!=' %cross -a -n %cross ']'
+ export CROSSCOMPILE
+ ./configure --target=x86_64-ark-linux --host=x86_64-unknown-linux-gnu --build=x86_64-unknown-linux-gnu --program-prefix= --prefix=/usr --exec-prefix=/usr --program-prefix= --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64 --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-ark-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking for -p flag to install... yes
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for kde-config... /usr/bin/kde-config
checking where to install... /usr (as requested)
checking for style of include used by make... GNU
checking for x86_64-unknown-linux-gnu-gcc... no
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details.
error: Bad exit status from /var/tmp/rpm-tmp.63762 (%prep)


RPM build errors:
    Bad exit status from /var/tmp/rpm-tmp.63762 (%prep)