RTS/CTS flow control.

	divisions.

	Use grub_fatal rather than divide by zero.
	* grub-core/lib/libgcrypt/mpi/mpi-pow.c (gcry_mpi_powm): Likewise.

	truncate.
	(grub_fixed_fsf_divide): Likewise.

	division by-zero and senseless negative divisions.

	division by-zero and senseless negative divisions.
	(circprog_set_property): Don't accept negative num_ticks.

	division by-zero and senseless negative divisions.

        * grub-core/gfxmenu/gui_canvas.c: Likewise.
        * grub-core/gfxmenu/view.c: Likewise.
        * grub-core/video/fb/video_fb.c: Introduce new functions:
        grub_video_set_area_status, grub_video_get_area_status,
        grub_video_set_region, grub_video_get_region.
        * grub-core/video/bochs.c: Likewise.
        * grub-core/video/capture.c: Likewise.
        * grub-core/video/video.c: Likewise.
        * grub-core/video/cirrus.c: Likewise.
        * grub-core/video/efi_gop.c: Likewise.
        * grub-core/video/efi_uga.c: Likewise.
        * grub-core/video/emu/sdl.c: Likewise.
        * grub-core/video/radeon_fuloong2e.c: Likewise.
        * grub-core/video/sis315pro.c: Likewise.
        * grub-core/video/sm712.c: Likewise.
        * grub-core/video/i386/pc/vbe.c: Likewise.
        * grub-core/video/i386/pc/vga.c: Likewise.
        * grub-core/video/ieee1275.c: Likewise.
        * grub-core/video/i386/coreboot/cbfb.c: Likewise.
        * include/grub/video.h: Likewise.
        * include/grub/video_fb.h: Likewise.
        * include/grub/fbfill.h: Updated render_target structure.
        grub_video_rect_t viewport, region, area
        int area_offset_x, area_offset_y, area_enabled
        * include/grub/gui.h: New helper function
        grub_video_bounds_inside_region.
        * docs/grub-dev.texi: Added information about new functions.

	for alignment.

	missing attribute.
	* grub-core/gdb/cstub.c (grub_gdb_trap): Likewise.

	simple division on arm and ia64.

	link with libgcc.

	prefix symbol, not @.

	NULL pointer dereference.

	clang.

	warnings.

	function.
	* grub-core/loader/i386/xnu.c (hextoval): Likewise.
	* grub-core/disk/geli.c (ascii2hex): Likewise.

	Define TARGET_LDFLAGS_STATIC_LIBGCC and TARGET_LIBGCC.
	Change all occurences of -static-libgcc resp -lgcc to
	TARGET_LDFLAGS_STATIC_LIBGCC resp TARGET_LIBGCC.

	* conf/Makefile.common (CFLAGS_PLATFORM): Don't add -mrtd -mregparm=3
	unconditionally.
	* configure.ac: Add -no-integrated-as when using clangfor asm files.
	Add -mrtd -mregparm=3 on i386 when not using clang.
	* grub-core/kern/misc.c (grub_memset): Add volatile when on clang.

	bindings.
	* grub-core/lib/reed_solomon.c: Likewise.
	* include/grub/i386/gdb.h: Likewise.
	* include/grub/i386/pc/int.h: Likewise.
	* include/grub/i386/pc/pxe.h: Likewise.
	* include/grub/ieee1275/ieee1275.h: Likewise.

	support it.

	* configure.ac: Likewise.

	either -falign-loops or -malign-loops work.

	resetting cflags to target_cflags in target tests.

	function.

	Remove nested functions.