* configure.ac: Probe for `help2man'.
* Makefile.in (builddir): New variable.
(HELP2MAN): Likewise. Set to `true' when @HELP2MAN@ doesn't provide it,
or otherwise add a few flags/options to it.
(install-local): For every executable utility or script that is
installed, invoke $(HELP2MAN) to install a manpage based on --help
output.
* util/i386/pc/grub-install.in: Move down `update-grub_lib' sourcing, so
that it doesn't prevent --help from working in build tree.
* util/i386/pc/grub-mkrescue.in (usage): Replace `grub-devel@gnu.org'
with `bug-grub@gnu.org'.
* util/powerpc/ieee1275/grub-mkrescue.in (usage): Likewise.
* util/update-grub.in (usage): New function.
Implement proper argument check, with support for --help and --version
(as well as existing -y).
* configure.ac: Search for possible unifont.hex locations, and
define UNIFONT_HEX if found.
* Makefile.in (UNIFONT_HEX): Define variable.
(DATA): Rename to ...
(PKGLIB): ... this. Update all users.
(PKGDATA): New variable.
(pkgdata_IMAGES): Rename to ...
(pkglib_IMAGES): ... this. Update all users.
(pkgdata_MODULES): Rename to ...
(pkglib_MODULES): ... this. Update all users.
(pkgdata_PROGRAMS): Rename to ...
(pkglib_PROGRAMS): ... this. Update all users.
(pkgdata_DATA): Rename to ...
(pkglib_DATA): ... this. Update all users.
(CLEANFILES): Redefine to `$(pkglib_DATA) $(pkgdata_DATA)'.
(unicode.pff, ascii.pff): New rules.
(all-local): Add `$(PKGDATA)' dependency.
(install-local): Process `$(PKGDATA)'.
* util/update-grub_lib.in (font_path): Search for *.pff files in
a few more locations, including `${pkgdata}'.
linker. If yes, add it to TARGET_LDFLAGS. Build ID causes
objcopy to generate incorrect binary files (binutils
2.17.50.0.18-1 as shipped by Fedora 8).
* aclocal.m4 (grub_PROG_OBJCOPY_ABSOLUTE): Use LDFLAGS when
linking, so that build ID doesn't break the test.
* util/biosdisk.c (linux_find_partition): Allocate real_dev on the
stack instead of on the heap.
* kern/disk.c (grub_disk_read): Make sure tmp_buf is big enough
before doing a read on it.
* configure.ac: Only use -fno-stack-protector for the target
environment.
./configure --program-transform-name="s/grub/grub2/"
And the installed files (in this case for i386-pc) will be:
/usr/lib/grub2/i386-pc/*
/usr/local/sbin/grub2-emu
/usr/local/sbin/grub2-install
...etc
Also grub2-install place boot files in "/boot/grub2"
This allows easy integration into distributions as it allows grub2 to
sit side by side with a grub legacy install without.
* Makefile.in (enable_grub_emu): New variable.
* configure.ac (--enable-grub-emu): New option.
Do the checks for (n)curses only if `--enable-grub-emu' is requested.
* conf/i386-efi.rmk (sbin_UTILITIES): Add `grub-emu' only if requested.
* conf/i386-pc.rmk: Likewise.
* conf/powerpc-ieee1275.rmk: Likewise.
* conf/sparc64-ieee1275.rmk (bin_UTILITIES): Likewise.
* util/misc.c: Include config.h.
[!HAVE_MEMALIGN]: Do not include malloc.h.
(grub_memalign): Use posix_memalign, if present. Then, use
memalign, if present. Otherwise, emit an error.
* util/grub-emu.c: Do not include malloc.h.
* include/grub/util/misc.h: Include unistd.h. This is required for
FreeBSD, because off_t is defined in unistd.h. Reported by Harley
D. Eades III <hde@foobar-qux.org>.
* configure.ac (AC_GNU_SOURCE): Added.
(AC_CHECK_FUNCS): Check posix_memalign and memalign for the host
type.
* configure.ac: Don't set host_m32 for x86_64. Also reset LIBS
for the target-specific tests. Make sure that we also have the
up-to-date target variables for those tests.
Add --with-platform to configure. Use pkglibdir instead of
pkgdatadir. This is reported by Roger Leigh.
* util/powerpc/ieee1275/grub-install.in (datadir): Removed.
(host_vendor): Likewise.
(host_os): Likewise.
(pkgdatadir): Likewise.
(platform): New variable.
(pkglibdir): Likewise.
Use PKGLIBDIR instead of PKGDATADIR.
* util/i386/pc/grub-install.in (datadir): Removed.
(host_vendor): Likewise.
(host_os): Likewise.
(pkgdatadir): Likewise.
(platform): New variable.
(pkglibdir): Likewise.
Use PKGLIBDIR instead of PKGDATADIR.
* util/powerpc/ieee1275/grub-mkimage.c (usage): Use GRUB_LIBDIR
instead of GRUB_DATADIR.
(main): Likewise.
* util/i386/pc/grub-mkimage.c (usage): Likewise.
(main): Likewise.
* util/i386/efi/grub-mkimage.c (usage): Likewise.
(main): Likewise.
* configure.ac (--with-platform): New option.
Use PLATFORM instead of HOST_VENDOR to specify a platform.
* Makefile.in: Include a makefile based on PLATFORM instead of
HOST_VENDOR.
(pkgdatadir): Not appended by the machine type.
(pkglibdir): Appended by the machine type.
(host_vendor): Removed.
(platform): New variable.
(BUILD_CPPFLAGS): Specify GRUB_LIBDIR instead of GRUB_DATADIR.
(install-local): Use PKGLIBDIR instead of PKGDATADIR.
(uninstall): Likewise.
A new machine-specific function "grub_machine_set_prefix" is
defined. This is called after loading modules, so that a prefix
initialization can use modules. Also, this change adds an
intensive debugging feature for the memory manager via the
configure option "--enable-mm-debug".
* partmap/gpt.c (gpt_partition_map_iterate): Add one more into
PART.LEN.
* kern/sparc64/ieee1275/init.c (abort): Removed.
(grub_stop): Likewise.
(grub_exit): New function.
(grub_set_prefix): Renamed to ...
(grub_machine_set_prefix): ... this.
(grub_machine_init): Do not call grub_set_prefix.
* kern/powerpc/ieee1275/init.c (grub_set_prefix): Renamed to ...
(grub_machine_set_prefix): ... this.
(grub_machine_init): Do not call grub_set_prefix.
* kern/i386/pc/init.c (grub_machine_set_prefix): New function.
(grub_machine_init): Do not set the prefix here.
* kern/i386/efi/init.c (grub_machine_set_prefix): New function.
* kern/efi/init.c: Include grub/mm.h.
(grub_efi_set_prefix): New function.
* kern/efi/efi.c (grub_exit): Call grub_efi_fini.
(grub_efi_get_filename): New function.
(grub_print_device_path): Renamed to ...
(grub_efi_print_device_path): ... this.
* kern/mm.c [MM_DEBUG] (grub_malloc): Undefined.
[MM_DEBUG] (grub_realloc): Likewise.
[MM_DEBUG] (grub_free): Likewise.
[MM_DEBUG] (grub_memalign): Likewise.
[MM_DEBUG] (grub_mm_debug): New variable.
[MM_DEBUG] (grub_debug_malloc): New function.
[MM_DEBUG] (grub_debug_free): New function.
[MM_DEBUG] (grub_debug_realloc): New function.
[MM_DEBUG] (grub_debug_memalign): New function.
* kern/misc.c (grub_abort): Print a newline to distinguish
the message.
* kern/main.c (grub_main): Call grub_machine_set_prefix and
grub_set_root_dev after loading modules. This is necessary when
setting a prefix depends on modules.
* include/grub/efi/efi.h (grub_print_device_path): Renamed to ...
(grub_efi_print_device_path): ... this.
(grub_efi_get_filename): New prototype.
(grub_efi_set_prefix): Likewise.
* include/grub/efi/disk.h: Include grub/efi/api.h, grub/symbol.h
and grub/disk.h.
(grub_efidisk_get_device_handle): New prototype.
(grub_efidisk_get_device_name): Likewise.
* include/grub/mm.h: Include config.h.
(MM_DEBUG): Removed.
[MM_DEBUG && !GRUB_UTIL] (grub_mm_debug): New prototype.
[MM_DEBUG && !GRUB_UTIL] (grub_malloc): New macro.
[MM_DEBUG && !GRUB_UTIL] (grub_realloc): Likewise.
[MM_DEBUG && !GRUB_UTIL] (grub_memalign): Likewise.
[MM_DEBUG && !GRUB_UTIL] (grub_free): Likewise.
[MM_DEBUG && !GRUB_UTIL] (grub_debug_malloc): New prototype.
[MM_DEBUG && !GRUB_UTIL] (grub_debug_realloc): New prototype.
[MM_DEBUG && !GRUB_UTIL] (grub_debug_memalign): New prototype.
[MM_DEBUG && !GRUB_UTIL] (grub_debug_free): New prototype.
* include/grub/kernel.h (grub_machine_set_prefix): New prototype.
* disk/efi/efidisk.c: Include grub/partition.h.
(iterate_child_devices): New function.
(add_device): First, compare only last device path nodes, so that
devices are sorted by the types.
(grub_efidisk_get_device_handle): New function.
(grub_efidisk_get_device_name): Likewise.
* configure.ac (--enable-mm-debug): New option to enable the
memory manager debugging feature. This makes the binary much
bigger, so is disabled by default.
* INSTALL: GNU Bison is required.
* configure.ac: Rewritten the test to detect Bison.
* Makefile.in (YACC): New variable. Reported by Xun Sun
<xun.sun.cn@gmail.com>.
* configure.ac (AC_INIT): Increase the version number to 1.91.
* DISTLIST: Added include/grub/terminfo.h, include/grub/tparm.h,
include/grub/i386/pc/serial.h, term/terminfo.c, term/tparm.c and
term/i386/pc/serial.c.
* configure.ac: Accept `x86_64' as host_cpu. In that case add
`-m32' to CFLAGS.
* genmk.rb (class PModule): Always use `$(#{prefix}_LDFLAGS)' when
linking.
* conf/i386-pc.rmk (COMMON_CFLAGS): Add `-m32'.
(COMMON_LDFLAGS): New variable.
(kernel_img_LDFLAGS): Include `COMMON_FLAGS'.
(_chain_mod_LDFLAGS, fshelp_mod_LDFLAGS, fat_mod_LDFLAGS)
(ext2_mod_LDFLAGS, ufs_mod_LDFLAGS, minix_mod_LDFLAGS)
(hfs_mod_LDFLAGS, jfs_mod_LDFLAGS, iso9660_mod_LDFLAGS)
(xfs_mod_LDFLAGS, _linux_mod_LDFLAGS, linux_mod_LDFLAGS)
(normal_mod_LDFLAGS, hello_mod_LDFLAGS, boot_mod_LDFLAGS)
(terminal_mod_LDFLAGS, ls_mod_LDFLAGS, cmp_mod_LDFLAGS)
(cat_mod_LDFLAGS, help_mod_LDFLAGS, reboot_mod_LDFLAGS)
(halt_mod_LDFLAGS, vga_mod_LDFLAGS, font_mod_LDFLAGS)
(terminfo_mod_LDFLAGS, serial_mod_LDFLAGS, _multiboot_mod_LDFLAGS)
(multiboot_mod_LDFLAGS, amiga_mod_LDFLAGS, apple_mod_LDFLAGS)
(pc_mod_LDFLAGS, sun_mod_LDFLAGS, loopback_mod_LDFLAGS)
(default_mod_LDFLAGS, timeout_mod_LDFLAGS, configfile_mod_LDFLAGS)
(vbe_mod_LDFLAGS, vesafb_mod_LDFLAGS, vbeinfo_mod_LDFLAGS)
(vbetest_mod_LDFLAGS, search_mod_LDFLAGS, gzio_mod_LDFLAGS): New
variables.
(normal_mod_ASFLAGS): Add `-m32'.
* include/grub/types.h (grub_host_addr_t, grub_host_off_t)
(grub_host_size_t, grub_host_ssize_t): New types.
(grub_addr_t, grub_off_t, grub_size_t, grub_ssize_t): Make type
dependant of `GRUB_CPU_SIZEOF_VOID_P' instead on
`GRUB_HOST_SIZEOF_VOID_P'.
* include/grub/kernel.h (struct grub_module_header): Type of
member offset changed to `grub_host_off_t'. Type of member size
changed to `grub_host_size_t'.
(struct grub_module_info): Type of member offset changed to
`grub_host_off_t'. Type of member size changed to
`grub_host_size_t'.
* configure.ac: Add support for sparc64 host with ieee1275
firmware.
* configure: Generated from configure.ac.
* disk/ieee1275/ofdisk.c (grub_ofdisk_open): Use grub_ssize_t
instead of int.
(grub_ofdisk_read): Likewise.
(grub_ofdisk_open): Use %p to print pointer values, and cast the
pointers as (void *) to remove a warning.
(grub_ofdisk_close): Likewise.
(grub_ofdisk_read): Likewise.
* kern/ieee1275/ieee1275.c (grub_ieee1275_exit): This never
returns, so make it return void to remove a warning.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_exit):
Corresponding prototype change.
* kern/mm.c (grub_mm_init_region): Use %p to print pointer
values, and cast the pointers as (void *) to remove a warning.
(grub_mm_dump): Likewise.
* conf/sparc64-ieee1275.mk: New file.
* conf/sparc64-ieee1275.rmk: Likewise.
* include/grub/sparc64/setjmp.h: Likewise.
* include/grub/sparc64/types.h: Likewise.
* include/grub/sparc64/ieee1275/console.h: Likewise.
* include/grub/sparc64/ieee1275/ieee1275.h: Likewise.
* include/grub/sparc64/ieee1275/kernel.h: Likewise.
* include/grub/sparc64/ieee1275/time.h: Likewise.
* kern/sparc64/cache.c: Likewise.
* kern/sparc64/dl.c: Likewise.
* kern/sparc64/ieee1275/init.c: Likewise.
* kern/sparc64/ieee1275/openfw.c: Likewise.
* Makefile.in (LIBLZO): New variable.
* configure.ac: Check for LZO version 2.
* util/i386/pc/grub-mkimage.c [HAVE_LZO_LZO1X_H]: Include
lzo/lzo1x.h instead of lzo1x.h.
* conf/i386-pc.rmk (grub_mkimage_LDFLAGS): Use $(LIBLZO) instead
of -llzo.
* util/i386/pc/grub-setup.c (main): Do not free PREFIX
twice. Reported by Vladimir Serbinenko <phcoder@gmail.com>.
* partmap/pc.c (pc_partition_map_probe): Restore P->DATA after
copying the data from PARTITION to P.
* kern/rescue.c (grub_rescue_cmd_rmmod): If the reference count is
negative, unload the module.
* util/i386/pc/grub-setup.c (setup): The name of the PC partition
map is "pc_partition_map" but not "pc".
(usage): Fix the description. The options are --boot-image and
--core-image but not --boot-file or --core-file.
(main): If not specified explicitly, make BOOT_FILE and CORE_FILE
based on DEFAULT_BOOT_FILE and DEFAULT_CORE_FILE with DIR or
DEFAULT_DIRECTORY.
* util/i386/pc/grub-install.in: Do not specify --boot-file or
--core-file. Specify INSTALL_DEVICE as an argument.
* util/console.c: Include config.h.
[HAVE_NCURSeS_CURSES_H]: Include ncurses/curses.h.
[HAVE_NCURSES_H]: Include ncurses.h.
[HAVE_CURSES_H]: Include curses.h.
[!A_NORMAL] (A_NORMAL): Defined as zero.
[!A_STANDOUT] (A_STANDOUT): Likewise.
* conf/i386-pc.rmk (grub_emu_LDFLAGS): Use $(LIBCURSES) instead of
-lncurses.
* conf/powerpc-ieee1275.rmk (grub_emu_LDFLAGS): Likewise.
* configure.ac: Check for curses libraries and headers.
* Makefile.in (LIBCURSES): New variable.
* genmk.rb (Script::rule): Set the executable bits.
* util/i386/pc/biosdisk.c (grub_util_biosdisk_get_grub_dev): The
name of the PC partition map is "pc_partition_map" but not "pc".
* configure.ac: Fix the test for cross-compiling.
* genmk.rb (Program): Use `$(CC)' instead of `$(BUILD_CC)'. Don't
define GRUB_UTIL anymore.
* util/powerpc/ieee1275/grub-mkimage.c (load_note): Endian fixes
so this function works on other systems than just big endian.
(load_modules): Likewise.
(add_segments): Likewise.
All symbols prefixed with PUPA_ and pupa_ are renamed to GRUB_
and grub_, respectively. Because the conversion is trivial and
mechanical, I omit the details here. Please refer to the CVS
if you need more information.
Add support for the newworld apple macintosh (PPC). This has been
tested on the powerbook 2000 only. It only adds support for
generic ieee1275 functions, console and disk support. This should
be easy to port to other architectures with support for Open
Firmware.
* configure.ac: Accept the powerpc as host_cpu. In the case of
the powerpc cpu set the host_vendor to ieee1275. Make sure the i386
specific tests are only executed while building for the i386.
Inverse test for crosscompile.
* genmk.rb (Utility): Allow assembler files.
* normal/cmdline.c (pupa_tab_complete): Reset pupa_errno.
* conf/powerpc-ieee1275.rmk: New file.
* disk/powerpc/ieee1275/ofdisk.c: Likewise.
* disk/powerpc/ieee1275/partition.c: Likewise.
* include/pupa/powerpc/ieee1275/biosdisk.h: Likewise.
* include/pupa/powerpc/ieee1275/console.h: Likewise.
* include/pupa/powerpc/ieee1275/partition.h: Likewise.
* include/pupa/powerpc/ieee1275/time.h: Likewise.
* include/pupa/powerpc/ieee1275/util/biosdisk.h: Likewise.
* include/pupa/powerpc/ieee1275/multiboot.h: Likewise.
* include/pupa/powerpc/ieee1275/loader.h
* include/pupa/powerpc/setjmp.h: Likewise.
* include/pupa/powerpc/types.h: Likewise.
* kern/powerpc/ieee1275/init.c: Likewise.
* kern/powerpc/ieee1275/openfw.c: Likewise.
* term/powerpc/ieee1275/ofconsole.c: Likewise.
These files were written by Johan Rydberg
(jrydberg@night.trouble.net) and I only modified them slightly.
* boot/powerpc/ieee1275/cmain.c: New file.
* boot/powerpc/ieee1275/crt0.S: Likewise.
* boot/powerpc/ieee1275/ieee1275.c: Likewise.
* include/pupa/powerpc/ieee1275/ieee1275.h: Likewise.
Now this project is GRUB 2 rather than PUPA. The location of
the CVS repository was moved to GRUB's.
* configure.ac: Use bug-grub as the reporting address.
Use GRUB instead of PUPA.
Change the version number to 1.90.
* README: In the pupa-mkimage example use _chain instead of chain
and ext2 instead of fat.
* TODO: Replace ext2fs with jfs as an example. Add an item for
adding journal playback for ext2fs.
* conf/i386-pc.rmk (pupa_setup_SOURCES): Added fs/ext2.c.
(pkgdata_MODULES): Added ext2.mod.
(ext2_mod_SOURCES): New variable.
(ext2_mod_CFLAGS): Likewise.
* include/pupa/err.h (pupa_err_t): Added PUPA_ERR_SYMLINK_LOOP.
* include/pupa/misc.h (pupa_strncpy): New prototype.
(pupa_strcat): Likewise.
(pupa_strncmp): Likewise.
* kern/misc.c (pupa_strcat): Enable function.
(pupa_strncpy): New function.
(pupa_strncmp): Likewise.
* kern/disk.c (pupa_disk_read): Set pupa_errno to PUPA_ERR_NONE
when the read failed before retrying.
* util/i386/pc/biosdisk.c (_LARGEFILE_SOURCE): Removed.
(_FILE_OFFSET_BITS): Likewise.
* configure.ac: Added AC_SYS_LARGEFILE.
* kern/i386/pc/lzo1x.S: New file.
* util/i386/pc/pupa-mkimage.c: Include lzo1x.h.
(compress_kernel): New variable.
(generate_image): Heavily modified to support compressing a
large part of the core image.
* util/misc.c (pupa_util_read_image): Fix a file descriptor
leak.
(pupa_util_load_image): New function.
* kern/i386/pc/startup.S: Include pupa/machine/kernel.h.
(pupa_compressed_size): New variable.
(codestart): Enable Gate A20 here.
Decompress the compressed part of the core image.
Rearrange the code to put functions and variables which are
required for initialization in the non-compressed part.
Include lzo1x.S.
* kern/i386/pc/init.c (pupa_machine_init): Don't enable Gate A20
here.
* include/pupa/util/misc.h (pupa_util_write_image): Declared.
* include/pupa/i386/pc/kernel.h
(PUPA_KERNEL_MACHINE_COMPRESSED_SIZE): New macro.
(PUPA_KERNEL_MACHINE_INSTALL_DOS_PART): Increased by 4.
(PUPA_KERNEL_MACHINE_INSTALL_BSD_PART): Likewise.
(PUPA_KERNEL_MACHINE_PREFIX): Likewise.
(PUPA_KERNEL_MACHINE_RAW_SIZE): New macro.
* conf/i386-pc.rmk (pupa_mkimage_LDFLAGS): New variable.
* genmk.rb (Image#rule): Put LDFLAGS at the end of a line.
(Utility#rule): Likewise.
* configure.ac: Check if LZO is available.
* util/i386/pc/pupa-setup.c: Include pupa/machine/kernel.h.
(setup): Configure the installed partition information and the
dl prefix.
* loader/i386/pc/chainloader.c (my_mod): New variable.
(pupa_chainloader_unload): New function.
(pupa_rescue_cmd_chainloader): Refer itself.
(PUPA_MOD_INIT): Save its own module in MY_MOD.
* kern/i386/pc/startup.S (install_partition): Removed.
(version_string): Likewise.
(config_file): Likewise.
(pupa_install_dos_part): New variable.
(pupa_install_bsd_part): Likewise.
(pupa_prefix): Likewise.
(pupa_chainloader_real_boot): Call pupa_dl_unload_all.
* kern/i386/pc/init.c: Include pupa/machine/kernel.h, pupa/dl.h
and pupa/misc.h.
(make_install_device): New function.
(pupa_machine_init): Set the dl prefix.
* kern/rescue.c: Include pupa/rescue.h and pupa/dl.h.
(buf): Renamed to ...
(linebuf): ... this.
(pupa_rescue_cmd_prefix): New function.
(pupa_rescue_cmd_insmod): Likewise.
(pupa_rescue_cmd_rmmod): Likewise.
(pupa_rescue_cmd_lsmod): Likewise.
(pupa_enter_rescue_mode): Register new commands: prefix, insmod,
rmmod and lsmod.
* kern/mm.c (pupa_memalign): If failed even after invalidating
disk caches, unload unneeded modules and retry.
* kern/misc.c (pupa_memmove): New function.
(pupa_memcpy): Removed.
(pupa_strcpy): New function.
(pupa_itoa): Made static.
* kern/dl.c (pupa_dl_iterate): New function.
(pupa_dl_ref): Likewise.
(pupa_dl_unref): Likewise.
(pupa_dl_unload): Return if succeeded or not.
(pupa_dl_unload_unneeded): New function.
(pupa_dl_unload_all): Likewise.
(pupa_dl_init): Renamed to ...
(pupa_dl_set_prefix): ... this.
(pupa_dl_get_prefix): New function.
* include/pupa/i386/pc/kernel.h: Include pupa/types.h.
(PUPA_KERNEL_MACHINE_INSTALL_DOS_PART): New macro.
(PUPA_KERNEL_MACHINE_INSTALL_BSD_PART): Likewise.
(PUPA_KERNEL_MACHINE_PREFIX): Likewise.
(pupa_install_dos_part): Declared.
(pupa_install_bsd_part): Likewise.
(pupa_prefix): Likewise.
(pupa_boot_drive): Likewise.
* include/pupa/types.h: Fix a typo.
* include/pupa/misc.h (pupa_memcpy): New macro. Just an alias to
pupa_memmove.
(pupa_memmove): Declared.
(pupa_strcpy): Likewise.
* include/pupa/dl.h (PUPA_MOD_INIT): Change the prototype. Now
pupa_mod_init takes one argument, its own module.
(pupa_dl_unload_unneeded): Declared.
(pupa_dl_unload_all): Likewise.
(pupa_dl_ref): Likewise.
(pupa_dl_unref): Likewise.
(pupa_dl_iterate): Likewise.
(pupa_dl_init): Renamed to ...
(pupa_dl_set_prefix): ... this.
(pupa_dl_get_prefix): Declared.
* fs/fat.c [!PUPA_UTIL] (my_mod): New variable.
(pupa_fat_dir) [!PUPA_UTIL]: Prevent the fat module from being
unloaded.
(pupa_fat_open) [!PUPA_UTIL]: Refer itself if succeeded.
(pupa_fat_close) [!PUPA_UTIL]: Unrefer itself.
* configure.ac (tmp_CFLAGS): Added -Wshadow, -Wpointer-arith,
-Wmissing-prototypes, -Wundef and -Wstrict-prototypes.
* configure.ac: Check ld.
Replace CFLAGS and CPPFLAGS with BUILD_CFLAGS and BUILD_CPPFLAGS
respectively, before checking endianness and sizes.
* Makefile.in (LD): New variable.
