* Makefile.in (PREPROCESSOR_DEFINES): Add
@TARGET_SYSTEM_ROOT_DEFINE@.
* configure.in (PREFIX_INCLUDE_DIR): Don't define if $with_sysroot
is specified or if building a cross compiler.
(TARGET_SYSTEM_ROOT_DEFINE): Add TARGET_SYSTEM_ROOT_RELOCATABLE
if the sysroot is under $exec_prefix.
* configure: Regenerated.
* cppdefault.h: Use native include paths if TARGET_SYSTEM_ROOT is
defined.
(struct default_include): Add add_sysroot field.
(cpp_SYSROOT): Declare.
* cppdefault.c (cpp_include_defaults): Fill in add_sysroot
field.
(cpp_SYSROOT): New variable.
* cppinit.c (cpp_create_reader): Initialize
CPP_OPTION (pfile, sysroot).
(init_standard_includes): Handle add_sysroot. Do not
add unrelocated copies of relocated directories.
(COMMAND_LINE_OPTIONS): Add -isysroot.
(cpp_handle_option): Handle -isysroot.
* cpplib.h (struct cpp_options): Add sysroot member.
* gcc.c (The Specs Language): Update description of %I.
(target_system_root_changed): New variable.
(process_command): Conditionalize make_relative_prefix call
on !VMS and TARGET_SYSTEM_ROOT_RELOCATABLE. Set
target_system_root_changed.
(do_spec_1): Add -isysroot to %I.
* doc/invoke.texi (Spec Files): Update description of %I.
* doc/install.texi (--with-sysroot): Update comment about
relocation.
From-SVN: r62853
* cppdefault.c (cpp_include_defaults): Also search PREFIX_INCLUDE_DIR.
* Makefile.in (includedir): Rename to local_includedir.
(includedir): Define as $(prefix)/include.
* config.in (PREFIX_INCLUDE_DIR): New variable.
* configure.in (PREFIX_INCLUDE_DIR): Test for new variable.
From-SVN: r45884
* cppinit.c: Include cppdefault.h. Refer to
cpp_GCC_INCLUDE_DIR and cpp_GCC_INCLUDE_DIR_len, not directly
to GCC_INCLUDE_DIR and its length.
(SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE,
USER_LABEL_PREFIX, REGISTER_PREFIX, struct default_include,
STANDARD_INCLUDE_DIR, STANDARD_INCLUDE_COMPONENT): Move to
cppdefault.h.
(include_defaults_array): Move to cppdefault.c.
* cppdefault.h: New file.
* cppdefault.c: New file.
* Makefile.in (LIBCPP_OBJS): Add cppdefault.o.
(cppinit.o): Don't apply $(PREPROCESSOR_DEFINES) to this file.
(cppdefault.o): New rule; apply $(PREPROCESSOR_DEFINES) to
this file.
From-SVN: r34892
