g++ -DLINUX -D_GNU_SOURCE -DAMD64 -DPRODUCT -I. -I/tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/share/vm -I/tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/share/vm/prims -I/tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/cpu/x86/vm -I/tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/os/linux/vm -I/tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/os_cpu/linux_x86/vm -I../generated -DHOTSPOT_RELEASE_VERSION="\"20.0-b11\"" -DHOTSPOT_BUILD_TARGET="\"product\"" -DHOTSPOT_BUILD_USER="\"root\"" -DHOTSPOT_LIB_ARCH=\"amd64\" -DJRE_RELEASE_VERSION="\"1.6.0_22-b22\"" -DHOTSPOT_VM_DISTRO="\"OpenJDK\"" -DDERIVATIVE_ID="\"IcedTea6 1.10.3\"" -DDISTRIBUTION_ID="\"Built on Gentoo Base System release 2.0.3 (Fri Aug 26 16:42:19 CEST 2011)\"" -march=native -pipe -O2 -g0 -DTARGET_OS_FAMILY_linux -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_64 -DTARGET_OS_ARCH_linux_x86 -DTARGET_OS_ARCH_MODEL_linux_x86_64 -DTARGET_COMPILER_gcc -DCOMPILER2 -DCOMPILER1 -fno-rtti -fno-exceptions -D_REENTRANT -fcheck-new -m64 -pipe -g -DTARGET_OS_FAMILY_linux -DTARGET_ARCH_x86 -DTARGET_ARCH_MODEL_x86_64 -DTARGET_OS_ARCH_linux_x86 -DTARGET_OS_ARCH_MODEL_linux_x86_64 -DTARGET_COMPILER_gcc -DCOMPILER2 -DCOMPILER1 -fpic -fno-rtti -fno-exceptions -D_REENTRANT -fcheck-new -m64 -pipe -g -O3 -fno-strict-aliasing -DVM_LITTLE_ENDIAN -D_LP64=1 -fno-omit-frame-pointer -Werror -Wpointer-arith -Wsign-compare -c -MMD -MP -MF ../generated/dependencies/ciMethodBlocks.o.d -o ciMethodBlocks.o /tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/share/vm/ci/ciMethodBlocks.cpp Compiling /tmp/portage/dev-java/icedtea-6.1.10.3/work/icedtea6-1.10.3/openjdk/hotspot/src/share/vm/ci/ciMethodData.cpp rm -f ciMethodData.o
This is fixed in icedtea-7.2.2. Thanks for the report.