gcc -c -O2 -g -pipe -Wall -Wextra -Wno-missing-field-initializers -Wno-unused -Wno-trigraphs -fdiagnostics-show-option -Wno-unused-parameter -Wno-long-long -Wno-long-long -Werror-implicit-function-declaration -Wno-variadic-macros -O2 -g -pipe -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -mtune=generic -fno-omit-frame-pointer -fno-strict-aliasing -fvisibility=hidden -DVBOX_HAVE_VISIBILITY_HIDDEN -DRT_USE_VISIBILITY_DEFAULT -Wno-sign-compare -fPIC -m64 -I/builddir/build/BUILD/VirtualBox-4.3.8/src/VBox/Additions/common/crOpenGL/array -I/builddir/build/BUILD/VirtualBox-4.3.8/src/VBox/GuestHost/OpenGL/include -I/builddir/build/BUILD/VirtualBox-4.3.8/obj/obj/VBoxOGLgen -I/builddir/build/BUILD/VirtualBox-4.3.8/obj/obj/VBoxOGLarrayspu/dtrace -I/builddir/build/BUILD/VirtualBox-4.3.8/include -I/builddir/build/BUILD/VirtualBox-4.3.8/obj -DVBOX -DVBOX_OSE -DVBOX_WITH_64_BITS_GUESTS -DVBOX_WITH_DEBUGGER -DRT_OS_LINUX -D_FILE_OFFSET_BITS=64 -DRT_ARCH_AMD64 -D__AMD64__ -DVBOX_WITH_HARDENING -DRTPATH_APP_PRIVATE=\"/usr/lib64/virtualbox\" -DRTPATH_APP_PRIVATE_ARCH=\"/usr/lib64/virtualbox\" -DRTPATH_SHARED_LIBS=\"/usr/lib64/virtualbox\" -DRTPATH_APP_DOCS=\"/usr/lib64/virtualbox\" -DCHROMIUM_THREADSAFE -DVBOX_WITH_HGCM -DIN_RING3 -DVBOX_WITH_DTRACE -DVBOX_WITH_DTRACE_R3 -DIN_GUEST -DIN_GUEST_R3 -DIN_RT_R3 -DGC_ARCH_BITS=64 -DPIC -DLinux=1 -D_GNU_SOURCE -DLOG_USE_C99 -DRT_WITHOUT_EXEC_ALLOC -Wp,-MD,/builddir/build/BUILD/VirtualBox-4.3.8/obj/obj/VBoxOGLarrayspu/array/arrayspu_init.o.dep -Wp,-MT,/builddir/build/BUILD/VirtualBox-4.3.8/obj/obj/VBoxOGLarrayspu/array/arrayspu_init.o -Wp,-MP -o /builddir/build/BUILD/VirtualBox-4.3.8/obj/obj/VBoxOGLarrayspu/array/arrayspu_init.o /builddir/build/BUILD/VirtualBox-4.3.8/src/VBox/Additions/common/crOpenGL/array/arrayspu_init.c
In file included from /usr/include/xorg/misc.h:115:0,
                 from /usr/include/xorg/xf86str.h:37,
                 from /usr/include/xorg/xf86.h:44,
                 from /builddir/build/BUILD/VirtualBox-4.3.8/src/VBox/Additions/common/crOpenGL/fakedri_drv.c:22:
/usr/include/xorg/os.h:579:2: error: expected identifier or '(' before '__extension__'
 strndup(const char *str, size_t n);
  ^
kmk: *** [/builddir/build/BUILD/VirtualBox-4.3.8/obj/obj/VBoxOGL/fakedri_drv.o] Error 1