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configure.ac: Add --with-native-system-header-dir.

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* configure.ac: Add --with-native-system-header-dir.  Set and
	substitute NATIVE_SYSTEM_HEADER_DIR.  Use native_system_header
	when setting target_header_dir.
	* config.gcc: Always set native_system_header_dir.
	(*-*-gnu*): Set native_system_header_dir.  Don't use t-gnu.
	(i[34567]86-pc-msdosdjgpp*): Set native_system_header_dir.  Don't
	use i386/t-djgpp.
	(i[34567]86-*-mingw* | x86_64-*-mingw*): Set
	native_system_header_dir.
	(spu-*-elf*): Set native_system_header_dir.
	* Makefile.in (NATIVE_SYSTEM_HEADER_DIR): Set to
	@NATIVE_SYSTEM_HEADER_DIR@.
	(PREPROCESSOR_DEFINES): Define NATIVE_SYSTEM_HEADER_DIR.
	* cppdefault.c (STANDARD_INCLUDE_DIR): Don't define.
	(NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
	STANDARD_INCLUDE_COMPONENT.
	(cpp_include_defaults): Don't use SYSTEM_INCLUDE_DIR.  Rename
	STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
	* system.h: Poison SYSTEM_INCLUDE_DIR, STANDARD_INCLUDE_DIR, and
	STANDARD_INCLUDE_COMPONENT.
	* config/i386/t-mingw32 (NATIVE_SYSTEM_HEADER_DIR): Remove.
	* config/i386/t-mingw-w32: Likewise.
	* config/i386/t-mingw-w64: Likewise.
	* config/spu/t-spu-elf: Likewise.
	* config/i386/t-djgpp: Remove.
	* config/t-gnu: Remove.
	* config/i386/mingw32.h (STANDARD_INCLUDE_DIR): Don't define.
	(NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
	STANDARD_INCLUDE_COMPONENT.
	* config/i386/djgpp.h (STANDARD_INCLUDE_DIR): Don't define.
	* config/spu/spu-elf.h: Likewise.
	* config/vms/xm-vms.h: Likewise.
	* config/gnu.h: Likewise.
	* config/openbsd.h (INCLUDE_DEFAULTS): Change STANDARD_INCLUDE_DIR
	and STANDARD_INCLUDE_COMPONENT to NATIVE_SYSTEM_HEADER_DIR and
	NATIVE_SYSTME_HEADER_COMPONENT.
	* doc/install.texi (Configuration): Document
	--with-native-system-header-dir.  Mention it in the documentation
	for --with-sysroot and --with-build-sysroot.
	* doc/tm.texi.in (Driver): Don't document SYSTEM_INCLUDE_DIR or
	STANDARD_INCLUDE_DIR.  Rename STANDARD_INCLUDE_COMPONENT to
	NATIVE_SYSTEM_HEADER_COMPONENT.  Rename uses of
	STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
	* doc/fragments.texi (Target Fragment): Don't document
	NATIVE_SYSTEM_HEADER_DIR.
	* configure, doc/tm.texi: Rebuild.

Co-Authored-By: Ian Lance Taylor <iant@google.com>

From-SVN: r180114
This commit is contained in:
Simon Baldwin 2011-10-17 23:31:25 +00:00 committed by Ian Lance Taylor
parent d1947945f5
commit 08b2bad275
23 changed files with 163 additions and 127 deletions
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50
gcc/ChangeLog
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@ -1,3 +1,53 @@
2011-10-17 Simon Baldwin <simonb@google.com>
Ian Lance Taylor <iant@google.com>
* configure.ac: Add --with-native-system-header-dir. Set and
substitute NATIVE_SYSTEM_HEADER_DIR. Use native_system_header
when setting target_header_dir.
* config.gcc: Always set native_system_header_dir.
(*-*-gnu*): Set native_system_header_dir. Don't use t-gnu.
(i[34567]86-pc-msdosdjgpp*): Set native_system_header_dir. Don't
use i386/t-djgpp.
(i[34567]86-*-mingw* | x86_64-*-mingw*): Set
native_system_header_dir.
(spu-*-elf*): Set native_system_header_dir.
* Makefile.in (NATIVE_SYSTEM_HEADER_DIR): Set to
@NATIVE_SYSTEM_HEADER_DIR@.
(PREPROCESSOR_DEFINES): Define NATIVE_SYSTEM_HEADER_DIR.
* cppdefault.c (STANDARD_INCLUDE_DIR): Don't define.
(NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
STANDARD_INCLUDE_COMPONENT.
(cpp_include_defaults): Don't use SYSTEM_INCLUDE_DIR. Rename
STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
* system.h: Poison SYSTEM_INCLUDE_DIR, STANDARD_INCLUDE_DIR, and
STANDARD_INCLUDE_COMPONENT.
* config/i386/t-mingw32 (NATIVE_SYSTEM_HEADER_DIR): Remove.
* config/i386/t-mingw-w32: Likewise.
* config/i386/t-mingw-w64: Likewise.
* config/spu/t-spu-elf: Likewise.
* config/i386/t-djgpp: Remove.
* config/t-gnu: Remove.
* config/i386/mingw32.h (STANDARD_INCLUDE_DIR): Don't define.
(NATIVE_SYSTEM_HEADER_COMPONENT): Rename from
STANDARD_INCLUDE_COMPONENT.
* config/i386/djgpp.h (STANDARD_INCLUDE_DIR): Don't define.
* config/spu/spu-elf.h: Likewise.
* config/vms/xm-vms.h: Likewise.
* config/gnu.h: Likewise.
* config/openbsd.h (INCLUDE_DEFAULTS): Change STANDARD_INCLUDE_DIR
and STANDARD_INCLUDE_COMPONENT to NATIVE_SYSTEM_HEADER_DIR and
NATIVE_SYSTME_HEADER_COMPONENT.
* doc/install.texi (Configuration): Document
--with-native-system-header-dir. Mention it in the documentation
for --with-sysroot and --with-build-sysroot.
* doc/tm.texi.in (Driver): Don't document SYSTEM_INCLUDE_DIR or
STANDARD_INCLUDE_DIR. Rename STANDARD_INCLUDE_COMPONENT to
NATIVE_SYSTEM_HEADER_COMPONENT. Rename uses of
STANDARD_INCLUDE_DIR to NATIVE_SYSTEM_HEADER_DIR.
* doc/fragments.texi (Target Fragment): Don't document
NATIVE_SYSTEM_HEADER_DIR.
* configure, doc/tm.texi: Rebuild.
2011-10-17 Richard Henderson <rth@redhat.com>
* config/sparc/sparc.md: Use register_or_zero_operand where rJ

3
gcc/Makefile.in
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@ -455,7 +455,7 @@ LINKER_PLUGIN_API_H = $(srcdir)/../include/plugin-api.h
LTO_SYMTAB_H = $(srcdir)/../include/lto-symtab.h
# Default native SYSTEM_HEADER_DIR, to be overridden by targets.
NATIVE_SYSTEM_HEADER_DIR = /usr/include
NATIVE_SYSTEM_HEADER_DIR = @NATIVE_SYSTEM_HEADER_DIR@
# Default cross SYSTEM_HEADER_DIR, to be overridden by targets.
CROSS_SYSTEM_HEADER_DIR = @CROSS_SYSTEM_HEADER_DIR@
@ -4075,6 +4075,7 @@ PREPROCESSOR_DEFINES = \
-DLOCAL_INCLUDE_DIR=\"$(local_includedir)\" \
-DCROSS_INCLUDE_DIR=\"$(CROSS_SYSTEM_HEADER_DIR)\" \
-DTOOL_INCLUDE_DIR=\"$(gcc_tooldir)/include\" \
-DNATIVE_SYSTEM_HEADER_DIR=\"$(NATIVE_SYSTEM_HEADER_DIR)\" \
-DPREFIX=\"$(prefix)/\" \
-DSTANDARD_EXEC_PREFIX=\"$(libdir)/gcc/\" \
@TARGET_SYSTEM_ROOT_DEFINE@

15
gcc/config.gcc
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@ -186,6 +186,13 @@
# configure_default_options
# Set to an initializer for configure_default_options
# in configargs.h, based on --with-cpu et cetera.
#
# native_system_header_dir
# Where system header files are found for this
# target. This defaults to /usr/include. If
# the --with-sysroot configure option or the
# --sysroot command line option is used this
# will be relative to the sysroot.
# The following variables are used in each case-construct to build up the
# outgoing variables:
@ -238,6 +245,7 @@ default_gnu_indirect_function=no
target_gtfiles=
need_64bit_hwint=
need_64bit_isa=
native_system_header_dir=/usr/include
# Don't carry these over build->host->target. Please.
xm_file=
@ -596,7 +604,8 @@ case ${target} in
*-*-linux* | frv-*-*linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu | *-*-kopensolaris*-gnu)
:;;
*-*-gnu*)
tmake_file="$tmake_file t-gnu";;
native_system_header_dir=/include
;;
esac
# glibc / uclibc / bionic switch.
# uclibc and bionic aren't usable for GNU/Hurd and neither for GNU/k*BSD.
@ -1370,7 +1379,7 @@ x86_64-*-linux* | x86_64-*-kfreebsd*-gnu | x86_64-*-knetbsd*-gnu)
i[34567]86-pc-msdosdjgpp*)
xm_file=i386/xm-djgpp.h
tm_file="dbxcoff.h ${tm_file} i386/unix.h i386/bsd.h i386/gas.h i386/djgpp.h i386/djgpp-stdint.h"
tmake_file="${tmake_file} i386/t-djgpp"
native_system_header_dir=/dev/env/DJDIR/include
extra_options="${extra_options} i386/djgpp.opt"
gnu_ld=yes
gas=yes
@ -1540,6 +1549,7 @@ i[34567]86-*-mingw* | x86_64-*-mingw*)
tmake_file="${tmake_file} i386/t-mingw32"
;;
esac
native_system_header_dir=/mingw/include
target_gtfiles="\$(srcdir)/config/i386/winnt.c"
extra_options="${extra_options} i386/cygming.opt i386/mingw.opt"
case ${target} in
@ -2563,6 +2573,7 @@ sparc64-*-openbsd*)
spu-*-elf*)
tm_file="dbxelf.h elfos.h spu/spu-elf.h spu/spu.h newlib-stdint.h"
tmake_file="spu/t-spu-elf"
native_system_header_dir=/include
extra_headers="spu_intrinsics.h spu_internals.h vmx2spu.h spu_mfcio.h vec_types.h spu_cache.h"
extra_modes=spu/spu-modes.def
c_target_objs="${c_target_objs} spu-c.o"

4
gcc/config/gnu.h
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@ -28,10 +28,6 @@ along with GCC. If not, see <http://www.gnu.org/licenses/>.
#undef LIB_SPEC
#define LIB_SPEC "%{pthread:-lpthread} %{pg|p|profile:-lc_p;:-lc}"
/* Standard include directory. In GNU, "/usr" is a four-letter word. */
#undef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR "/include"
#undef GNU_USER_TARGET_OS_CPP_BUILTINS
#define GNU_USER_TARGET_OS_CPP_BUILTINS() \
do { \

4
gcc/config/i386/djgpp.h
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@ -48,10 +48,6 @@ along with GCC; see the file COPYING3. If not see
/* We override default /usr or /usr/local part with /dev/env/DJDIR which */
/* points to actual DJGPP installation directory. */
/* Standard include directory */
#undef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR "/dev/env/DJDIR/include/"
/* Search for as.exe and ld.exe in DJGPP's binary directory. */
#undef MD_EXEC_PREFIX
#define MD_EXEC_PREFIX "/dev/env/DJDIR/bin/"

9
gcc/config/i386/mingw32.h
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@ -78,12 +78,8 @@ along with GCC; see the file COPYING3. If not see
#define SUB_LINK_ENTRY SUB_LINK_ENTRY32
#endif
/* Override the standard choice of /usr/include as the default prefix
to try when searching for header files. */
#undef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR "/mingw/include"
#undef STANDARD_INCLUDE_COMPONENT
#define STANDARD_INCLUDE_COMPONENT "MINGW"
#undef NATIVE_SYSTEM_HEADER_COMPONENT
#define NATIVE_SYSTEM_HEADER_COMPONENT "MINGW"
#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} " \
@ -235,4 +231,3 @@ do { \
/* We should find a way to not have to update this manually. */
#define LIBGCJ_SONAME "libgcj" /*LIBGCC_EH_EXTN*/ "-12.dll"

2
gcc/config/i386/t-djgpp
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@ -1,2 +0,0 @@
# Location of DJGPP's header directory.
NATIVE_SYSTEM_HEADER_DIR=$(DJDIR)/include

3
gcc/config/i386/t-mingw-w32
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@ -1,6 +1,3 @@
# Match SYSTEM_INCLUDE_DIR
NATIVE_SYSTEM_HEADER_DIR = /mingw/include
MULTILIB_OPTIONS = m64/m32
MULTILIB_DIRNAMES = 64 32
MULTILIB_OSDIRNAMES = ../lib64 ../lib

3
gcc/config/i386/t-mingw-w64
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@ -1,6 +1,3 @@
# Match SYSTEM_INCLUDE_DIR
NATIVE_SYSTEM_HEADER_DIR = /mingw/include
MULTILIB_OPTIONS = m64/m32
MULTILIB_DIRNAMES = 64 32
MULTILIB_OSDIRNAMES = ../lib ../lib32

3
gcc/config/i386/t-mingw32
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@ -1,5 +1,2 @@
# Match SYSTEM_INCLUDE_DIR
NATIVE_SYSTEM_HEADER_DIR = /mingw/include
# MinGW-specific parts of LIB_SPEC
SHLIB_LC = -lmingwthrd -lmingw32 -lmingwex -lmoldname -lmsvcrt -ladvapi32 -lshell32 -luser32 -lkernel32

4
gcc/config/openbsd.h
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@ -1,5 +1,5 @@
/* Base configuration file for all OpenBSD targets.
Copyright (C) 1999, 2000, 2004, 2005, 2007, 2009, 2010
Copyright (C) 1999, 2000, 2004, 2005, 2007, 2009, 2010, 2011
Free Software Foundation, Inc.
This file is part of GCC.
@ -59,7 +59,7 @@ along with GCC; see the file COPYING3. If not see
{ GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 }, \
{ GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1 }, \
{ GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1 }, \
{ STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0 }, \
{ NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0 }, \
{ 0, 0, 0, 0 } \
}

5
gcc/config/spu/spu-elf.h
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@ -35,10 +35,6 @@
#undef STANDARD_STARTFILE_PREFIX_2
#define STANDARD_STARTFILE_PREFIX_2 ""
/* Use "/include" instead of "/usr/include". */
#undef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR "/include"
/* We do not provide any "/usr/local/include" directory on SPU. */
#undef LOCAL_INCLUDE_DIR
@ -77,4 +73,3 @@
mcache-size=16 :-lgcc_cache16k; \
mcache-size=8 :-lgcc_cache8k; \
:-lgcc_cache64k}"

4
gcc/config/spu/t-spu-elf
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@ -15,10 +15,6 @@
# along with GCC; see the file COPYING3. If not see
# <http://www.gnu.org/licenses/>.
# Define system directory to match STANDARD_INCLUDE_DIR in spu-elf.h,
# allowing combined SPU/PPU sysroot builds.
NATIVE_SYSTEM_HEADER_DIR = /include
# Suppress building libgcc1.a
LIBGCC1 =
CROSS_LIBGCC1 =

2
gcc/config/t-gnu
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@ -1,2 +0,0 @@
# In GNU, "/usr" is a four-letter word.
NATIVE_SYSTEM_HEADER_DIR = /include

3
gcc/config/vms/xm-vms.h
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@ -1,6 +1,6 @@
/* Configuration for GCC for hosting on VMS
using a Unix style C library.
Copyright (C) 1996, 1997, 2001, 2004, 2007, 2009
Copyright (C) 1996, 1997, 2001, 2004, 2007, 2009, 2011
Free Software Foundation, Inc.
This file is part of GCC.
@ -55,4 +55,3 @@ do \
#define STANDARD_EXEC_PREFIX "/gnu/libexec/gcc/"
#define STANDARD_STARTFILE_PREFIX "/gnu/lib/"
#define STANDARD_INCLUDE_DIR "/gnu/include"

39
gcc/configure vendored
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@ -729,6 +729,7 @@ USE_NLS
extra_opt_files
extra_modes_file
gthread_flags
NATIVE_SYSTEM_HEADER_DIR
objext
manext
LIBICONV_DEP
@ -886,6 +887,7 @@ enable_tls
enable_objc_gc
with_dwarf2
enable_shared
with_native_system_header_dir
with_build_sysroot
with_sysroot
with_specs
@ -1651,6 +1653,9 @@ Optional Packages:
--with-as arrange to use the specified as (full pathname)
--with-stabs arrange to use stabs instead of host debug format
--with-dwarf2 force the default debug format to be DWARF 2
--with-native-system-header-dir=dir
use dir as the directory to look for standard
system header files in. Defaults to /usr/include.
--with-build-sysroot=sysroot
use sysroot as the system root during the build
--with-sysroot[=DIR] search for usr/lib, usr/include, et al, within DIR
@ -7152,6 +7157,22 @@ fi
# Check whether --with-native-system-header-dir was given.
if test "${with_native_system_header_dir+set}" = set; then :
withval=$with_native_system_header_dir;
case ${with_native_system_header_dir} in
yes|no) as_fn_error "bad value ${withval} given for --with-native-system-header-dir" "$LINENO" 5 ;;
/* | [A-Za-z]:[\\/]*) ;;
*) as_fn_error "--with-native-system-header-dir argument ${withval} must be an absolute directory" "$LINENO" 5 ;;
esac
configured_native_system_header_dir="${withval}"
else
configured_native_system_header_dir=
fi
# Check whether --with-build-sysroot was given.
if test "${with_build_sysroot+set}" = set; then :
withval=$with_build_sysroot; if test x"$withval" != x ; then
@ -11145,6 +11166,12 @@ if test "$host_xm_file" != "$build_xm_file"; then
fi
fi
if test -n "$configured_native_system_header_dir"; then
native_system_header_dir=$configured_native_system_header_dir
fi
NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir"
case ${host} in
powerpc*-*-darwin*)
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether mcontext_t fields have underscores" >&5
@ -17921,7 +17948,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 17924 "configure"
#line 17951 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -18027,7 +18054,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 18030 "configure"
#line 18057 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -26409,14 +26436,14 @@ if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
elif test "x$with_sysroot" = x; then
target_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
elif test "x$with_build_sysroot" != "x"; then
target_header_dir="${with_build_sysroot}/usr/include"
target_header_dir="${with_build_sysroot}${native_system_header_dir}"
elif test "x$with_sysroot" = xyes; then
target_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
target_header_dir="${exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}"
else
target_header_dir="${with_sysroot}/usr/include"
target_header_dir="${with_sysroot}${native_system_header_dir}"
fi
else
target_header_dir=/usr/include
target_header_dir=${native_system_header_dir}
fi
# Test for stack protector support in target C library.

27
gcc/configure.ac
View File

@ -725,6 +725,19 @@ AC_ARG_ENABLE(shared,
], [enable_shared=yes])
AC_SUBST(enable_shared)
AC_ARG_WITH([native-system-header-dir],
[ --with-native-system-header-dir=dir
use dir as the directory to look for standard
system header files in. Defaults to /usr/include.],
[
case ${with_native_system_header_dir} in
yes|no) AC_MSG_ERROR([bad value ${withval} given for --with-native-system-header-dir]) ;;
/* | [[A-Za-z]]:[[\\/]]*) ;;
*) AC_MSG_ERROR([--with-native-system-header-dir argument ${withval} must be an absolute directory]) ;;
esac
configured_native_system_header_dir="${withval}"
], [configured_native_system_header_dir=])
AC_ARG_WITH(build-sysroot,
[AS_HELP_STRING([--with-build-sysroot=sysroot],
[use sysroot as the system root during the build])],
@ -1331,6 +1344,12 @@ if test "$host_xm_file" != "$build_xm_file"; then
fi
fi
if test -n "$configured_native_system_header_dir"; then
native_system_header_dir=$configured_native_system_header_dir
fi
NATIVE_SYSTEM_HEADER_DIR="$native_system_header_dir"
AC_SUBST(NATIVE_SYSTEM_HEADER_DIR)
case ${host} in
powerpc*-*-darwin*)
AC_CACHE_CHECK([whether mcontext_t fields have underscores],
@ -4517,14 +4536,14 @@ if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then
elif test "x$with_sysroot" = x; then
target_header_dir="${exec_prefix}/${target_noncanonical}/sys-include"
elif test "x$with_build_sysroot" != "x"; then
target_header_dir="${with_build_sysroot}/usr/include"
target_header_dir="${with_build_sysroot}${native_system_header_dir}"
elif test "x$with_sysroot" = xyes; then
target_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include"
target_header_dir="${exec_prefix}/${target_noncanonical}/sys-root${native_system_header_dir}"
else
target_header_dir="${with_sysroot}/usr/include"
target_header_dir="${with_sysroot}${native_system_header_dir}"
fi
else
target_header_dir=/usr/include
target_header_dir=${native_system_header_dir}
fi
# Test for stack protector support in target C library.

22
gcc/cppdefault.c
View File

@ -1,6 +1,7 @@
/* CPP Library.
Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
1999, 2000, 2003, 2004, 2006, 2007, 2010 Free Software Foundation, Inc.
1999, 2000, 2003, 2004, 2006, 2007, 2010, 2011
Free Software Foundation, Inc.
Contributed by Per Bothner, 1994-95.
Based on CCCP program by Paul Rubin, June 1986
Adapted to ANSI C, Richard Stallman, Jan 1987
@ -25,18 +26,12 @@
#include "tm.h"
#include "cppdefault.h"
#ifndef STANDARD_INCLUDE_DIR
#define STANDARD_INCLUDE_DIR "/usr/include"
#endif
#ifndef STANDARD_INCLUDE_COMPONENT
#define STANDARD_INCLUDE_COMPONENT 0
#ifndef NATIVE_SYSTEM_HEADER_COMPONENT
#define NATIVE_SYSTEM_HEADER_COMPONENT 0
#endif
#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
# undef LOCAL_INCLUDE_DIR
# undef SYSTEM_INCLUDE_DIR
# undef STANDARD_INCLUDE_DIR
#else
# undef CROSS_INCLUDE_DIR
#endif
@ -89,14 +84,8 @@ const struct default_include cpp_include_defaults[]
/* Another place the target system's headers might be. */
{ TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0 },
#endif
#ifdef SYSTEM_INCLUDE_DIR
/* Some systems have an extra dir of include files. */
{ SYSTEM_INCLUDE_DIR, 0, 0, 0, 1, 0 },
#endif
#ifdef STANDARD_INCLUDE_DIR
/* /usr/include comes dead last. */
{ STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT, 0, 0, 1, 0 },
#endif
{ NATIVE_SYSTEM_HEADER_DIR, NATIVE_SYSTEM_HEADER_COMPONENT, 0, 0, 1, 0 },
{ 0, 0, 0, 0, 0, 0 }
};
#endif /* no INCLUDE_DEFAULTS */
@ -136,4 +125,3 @@ cpp_relocated (void)
return relocated;
}

9
gcc/doc/fragments.texi
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@ -1,5 +1,6 @@
@c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
@c 1999, 2000, 2001, 2003, 2004, 2005, 2008 Free Software Foundation, Inc.
@c 1999, 2000, 2001, 2003, 2004, 2005, 2008, 2011
@c Free Software Foundation, Inc.
@c This is part of the GCC manual.
@c For copying conditions, see the file gcc.texi.
@ -128,12 +129,6 @@ compiler. In that case, set @code{MULTILIB_EXTRA_OPTS} to be the list
of options to be used for all builds. If you set this, you should
probably set @code{CRTSTUFF_T_CFLAGS} to a dash followed by it.
@findex NATIVE_SYSTEM_HEADER_DIR
@item NATIVE_SYSTEM_HEADER_DIR
If the default location for system headers is not @file{/usr/include},
you must set this to the directory containing the headers. This value
should match the value of the @code{SYSTEM_INCLUDE_DIR} macro.
@findex SPECS
@item SPECS
Unfortunately, setting @code{MULTILIB_EXTRA_OPTS} is not enough, since

16
gcc/doc/install.texi
View File

@ -903,6 +903,14 @@ ideas of what it is for. People use it as if it specified where to
install part of GCC@. Perhaps they make this assumption because
installing GCC creates the directory.
@item --with-native-system-header-dir=@var{dirname}
Specifies that @var{dirname} is the directory that contains native system
header files, rather than @file{/usr/include}. This option is most useful
if you are creating a compiler that should be isolated from the system
as much as possible. It is most commonly used with the
@option{--with-sysroot} option and will cause GCC to search
@var{dirname} inside the system root specified by that option.
@item --enable-shared[=@var{package}[,@dots{}]]
Build shared versions of libraries, if shared libraries are supported on
the target platform. Unlike GCC 2.95.x and earlier, shared libraries
@ -1736,6 +1744,10 @@ target libraries (which runs on the build system) and the compiler newly
installed with @code{make install}; it does not affect the compiler which is
used to build GCC itself.
If you specify the @option{--with-native-system-header-dir=@var{dirname}}
option then the compiler will search that directory within @var{dirname} for
native system headers rather than the default @file{/usr/include}.
@item --with-build-sysroot
@itemx --with-build-sysroot=@var{dir}
Tells GCC to consider @var{dir} as the system root (see
@ -1750,6 +1762,10 @@ This option affects the system root for the compiler used to build
target libraries (which runs on the build system); it does not affect
the compiler which is used to build GCC itself.
If you specify the @option{--with-native-system-header-dir=@var{dirname}}
option then the compiler will search that directory within @var{dirname} for
native system headers rather than the default @file{/usr/include}.
@item --with-headers
@itemx --with-headers=@var{dir}
Deprecated in favor of @option{--with-sysroot}.

30
gcc/doc/tm.texi
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@ -470,33 +470,15 @@ initialize the necessary environment variables.
Define this macro as a C string constant if you wish to override the
standard choice of @file{/usr/local/include} as the default prefix to
try when searching for local header files. @code{LOCAL_INCLUDE_DIR}
comes before @code{SYSTEM_INCLUDE_DIR} in the search order.
comes before @code{NATIVE_SYSTEM_HEADER_DIR} (set in
@file{config.gcc}, normally @file{/usr/include}) in the search order.
Cross compilers do not search either @file{/usr/local/include} or its
replacement.
@end defmac
@defmac SYSTEM_INCLUDE_DIR
Define this macro as a C string constant if you wish to specify a
system-specific directory to search for header files before the standard
directory. @code{SYSTEM_INCLUDE_DIR} comes before
@code{STANDARD_INCLUDE_DIR} in the search order.
Cross compilers do not use this macro and do not search the directory
specified.
@end defmac
@defmac STANDARD_INCLUDE_DIR
Define this macro as a C string constant if you wish to override the
standard choice of @file{/usr/include} as the default prefix to
try when searching for header files.
Cross compilers ignore this macro and do not search either
@file{/usr/include} or its replacement.
@end defmac
@defmac STANDARD_INCLUDE_COMPONENT
The ``component'' corresponding to @code{STANDARD_INCLUDE_DIR}.
@defmac NATIVE_SYSTEM_HEADER_COMPONENT
The ``component'' corresponding to @code{NATIVE_SYSTEM_HEADER_DIR}.
See @code{INCLUDE_DEFAULTS}, below, for the description of components.
If you do not define this macro, no component is used.
@end defmac
@ -505,8 +487,8 @@ If you do not define this macro, no component is used.
Define this macro if you wish to override the entire default search path
for include files. For a native compiler, the default search path
usually consists of @code{GCC_INCLUDE_DIR}, @code{LOCAL_INCLUDE_DIR},
@code{SYSTEM_INCLUDE_DIR}, @code{GPLUSPLUS_INCLUDE_DIR}, and
@code{STANDARD_INCLUDE_DIR}. In addition, @code{GPLUSPLUS_INCLUDE_DIR}
@code{GPLUSPLUS_INCLUDE_DIR}, and
@code{NATIVE_SYSTEM_HEADER_DIR}. In addition, @code{GPLUSPLUS_INCLUDE_DIR}
and @code{GCC_INCLUDE_DIR} are defined automatically by @file{Makefile},
and specify private search areas for GCC@. The directory
@code{GPLUSPLUS_INCLUDE_DIR} is used only for C++ programs.

30
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@ -468,33 +468,15 @@ initialize the necessary environment variables.
Define this macro as a C string constant if you wish to override the
standard choice of @file{/usr/local/include} as the default prefix to
try when searching for local header files. @code{LOCAL_INCLUDE_DIR}
comes before @code{SYSTEM_INCLUDE_DIR} in the search order.
comes before @code{NATIVE_SYSTEM_HEADER_DIR} (set in
@file{config.gcc}, normally @file{/usr/include}) in the search order.
Cross compilers do not search either @file{/usr/local/include} or its
replacement.
@end defmac
@defmac SYSTEM_INCLUDE_DIR
Define this macro as a C string constant if you wish to specify a
system-specific directory to search for header files before the standard
directory. @code{SYSTEM_INCLUDE_DIR} comes before
@code{STANDARD_INCLUDE_DIR} in the search order.
Cross compilers do not use this macro and do not search the directory
specified.
@end defmac
@defmac STANDARD_INCLUDE_DIR
Define this macro as a C string constant if you wish to override the
standard choice of @file{/usr/include} as the default prefix to
try when searching for header files.
Cross compilers ignore this macro and do not search either
@file{/usr/include} or its replacement.
@end defmac
@defmac STANDARD_INCLUDE_COMPONENT
The ``component'' corresponding to @code{STANDARD_INCLUDE_DIR}.
@defmac NATIVE_SYSTEM_HEADER_COMPONENT
The ``component'' corresponding to @code{NATIVE_SYSTEM_HEADER_DIR}.
See @code{INCLUDE_DEFAULTS}, below, for the description of components.
If you do not define this macro, no component is used.
@end defmac
@ -503,8 +485,8 @@ If you do not define this macro, no component is used.
Define this macro if you wish to override the entire default search path
for include files. For a native compiler, the default search path
usually consists of @code{GCC_INCLUDE_DIR}, @code{LOCAL_INCLUDE_DIR},
@code{SYSTEM_INCLUDE_DIR}, @code{GPLUSPLUS_INCLUDE_DIR}, and
@code{STANDARD_INCLUDE_DIR}. In addition, @code{GPLUSPLUS_INCLUDE_DIR}
@code{GPLUSPLUS_INCLUDE_DIR}, and
@code{NATIVE_SYSTEM_HEADER_DIR}. In addition, @code{GPLUSPLUS_INCLUDE_DIR}
and @code{GCC_INCLUDE_DIR} are defined automatically by @file{Makefile},
and specify private search areas for GCC@. The directory
@code{GPLUSPLUS_INCLUDE_DIR} is used only for C++ programs.

3
gcc/system.h
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@ -868,7 +868,8 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
PREFERRED_OUTPUT_RELOAD_CLASS
PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT
/* Hooks that are no longer used. */
#pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \