>>> Unpacking source...
>>> Unpacking xen-3.3.0.tar.gz to /var/tmp/portage/app-emulation/xen-3.3.0/work
 * Applying xen-sed-gcc.patch ...
  [ ok ]
>>> Source unpacked in /var/tmp/portage/app-emulation/xen-3.3.0/work
>>> Compiling source in /var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0 ...
make -j9 CC=x86_64-pc-linux-gnu-gcc LDFLAGS=-O1 -C xen pae=y 
make: Entering directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen'
make -f Rules.mk _build
make[1]: Entering directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen'
make -C tools
make[2]: Entering directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/tools'
[ -d figlet ] && make -C figlet
make[3]: Entering directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/tools/figlet'
gcc -o figlet figlet.c
make[3]: Leaving directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/tools/figlet'
make symbols
make[3]: Entering directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/tools'
gcc -Wall -Werror -Wstrict-prototypes -O2 -fomit-frame-pointer -fno-strict-aliasing -Wdeclaration-after-statement -o symbols symbols.c
cc1: warnings being treated as errors
symbols.c: In function 'read_symbol':
symbols.c:84: error: ignoring return value of 'fgets', declared with attribute warn_unused_result
make[3]: *** [symbols] Error 1
make[3]: Leaving directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/tools'
make[2]: *** [default] Error 2
make[2]: Leaving directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/tools'
make[1]: *** [/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen/xen] Error 2
make[1]: Leaving directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen'
make: *** [build] Error 2
make: Leaving directory `/var/tmp/portage/app-emulation/xen-3.3.0/work/xen-3.3.0/xen'
 * 
 * ERROR: app-emulation/xen-3.3.0 failed.
 * Call stack:
 *               ebuild.sh, line   49:  Called src_compile
 *             environment, line 2559:  Called die
 * The specific snippet of code:
 *       emake CC="$(tc-getCC)" LDFLAGS="$(raw-ldflags)" -C xen ${myopt} || die "compile failed"
 *  The die message:
 *   compile failed
 * 
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/app-emulation/xen-3.3.0/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/app-emulation/xen-3.3.0/temp/environment'.
 *