gcc.c (option_map): Add --sysroot.
* gcc.c (option_map): Add --sysroot. (process_command): Handle --sysroot. (display_help): Document it. * doc/cppopts.tex (-isysroot): Document. * doc/invoke.texi (--sysroot): Document. * doc/install.texi (--with-build-sysroot): Document. * Makefile.in (inhibit_libc): New variable. (INHIBIT_LIBC_CFLAGS): Likewise. (LIBGCC2_CFLAGS): Include $(INHIBIT_LIBC_CFLAGS). (CRTSTUFF_CFLAGS): Include $(INHIBIT_LIBC_CFLAGS). ($(T)crtbegin.o): Do not use @inhibit_libc@. ($(T)crtend.o): Likewise. ($(T)crtbeginS.o): Do not use @inhibit_libc@. ($(T)crtendS.o): Likewise. ($(T)crtbeginT.o): Do not use @inhibit_libc@. ($(T)crtendT.o): Likewise. (stmp-fixinc): Do not complain about missing headers if inhibit_libc. * configure.ac (inhibit_libc): Set it to true/false. (--with-build-sysroot): New option. Use it to set SYSTEM_HEADER_DIR. * configure: Regenerated. From-SVN: r102367
This commit is contained in:
Mark Mitchell
Mark Mitchell
parent
334a03fd1e
commit
160633c626
@ -1,3 +1,30 @@
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2005-07-25 Mark Mitchell <mark@codesourcery.com>
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* gcc.c (option_map): Add --sysroot.
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(process_command): Handle --sysroot.
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(display_help): Document it.
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* doc/cppopts.tex (-isysroot): Document.
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* doc/invoke.texi (--sysroot): Document.
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* doc/install.texi (--with-build-sysroot): Document.
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* Makefile.in (inhibit_libc): New variable.
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(INHIBIT_LIBC_CFLAGS): Likewise.
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(LIBGCC2_CFLAGS): Include
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$(INHIBIT_LIBC_CFLAGS).
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(CRTSTUFF_CFLAGS): Include $(INHIBIT_LIBC_CFLAGS).
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($(T)crtbegin.o): Do not use @inhibit_libc@.
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($(T)crtend.o): Likewise.
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($(T)crtbeginS.o): Do not use @inhibit_libc@.
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($(T)crtendS.o): Likewise.
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($(T)crtbeginT.o): Do not use @inhibit_libc@.
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($(T)crtendT.o): Likewise.
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(stmp-fixinc): Do not complain about missing headers if
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inhibit_libc.
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* configure.ac (inhibit_libc): Set it to true/false.
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(--with-build-sysroot): New option. Use it to set
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SYSTEM_HEADER_DIR.
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* configure: Regenerated.
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2005-07-25 Manfred Hollstein <mh@suse.com>
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* calls.c (store_one_arg): Fix unsigned comparison warning.
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@ -325,7 +325,7 @@ GCC_FOR_TARGET = $(STAGE_CC_WRAPPER) ./xgcc -B./ -B$(build_tooldir)/bin/ -isyste
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# This is used instead of ALL_CFLAGS when compiling with GCC_FOR_TARGET.
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# It omits XCFLAGS, and specifies -B./.
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# It also specifies -isystem ./include to find, e.g., stddef.h.
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GCC_CFLAGS=$(INTERNAL_CFLAGS) $(X_CFLAGS) $(T_CFLAGS) $(LOOSE_WARN) -Wold-style-definition $($@-warn) -isystem ./include $(TCFLAGS)
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GCC_CFLAGS=$(CFLAGS_FOR_TARGET) $(INTERNAL_CFLAGS) $(X_CFLAGS) $(T_CFLAGS) $(LOOSE_WARN) -Wold-style-definition $($@-warn) -isystem ./include $(TCFLAGS)
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# ---------------------------------------------------
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# Programs which produce files for the target machine
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@ -511,12 +511,20 @@ GGC_LIB=
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LIBGCC = libgcc.a
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INSTALL_LIBGCC = install-libgcc
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# "true" if the target C library headers are unavailable; "false"
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# otherwise.
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inhibit_libc = @inhibit_libc@
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ifeq ($(inhibit_libc),true)
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INHIBIT_LIBC_CFLAGS = -Dinhibit_libc
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endif
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# Options to use when compiling libgcc2.a.
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#
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LIBGCC2_DEBUG_CFLAGS = -g
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LIBGCC2_CFLAGS = -O2 $(LIBGCC2_INCLUDES) $(GCC_CFLAGS) $(TARGET_LIBGCC2_CFLAGS) \
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$(LIBGCC2_DEBUG_CFLAGS) $(GTHREAD_FLAGS) \
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-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED @inhibit_libc@
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-DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED \
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$(INHIBIT_LIBC_CFLAGS)
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# Additional options to use when compiling libgcc2.a.
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# Some targets override this to -isystem include
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@ -528,7 +536,8 @@ TARGET_LIBGCC2_CFLAGS =
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# Options to use when compiling crtbegin/end.
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CRTSTUFF_CFLAGS = -O2 $(GCC_CFLAGS) $(INCLUDES) $(MULTILIB_CFLAGS) -g0 \
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-finhibit-size-directive -fno-inline-functions -fno-exceptions \
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-fno-zero-initialized-in-bss -fno-unit-at-a-time
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-fno-zero-initialized-in-bss -fno-unit-at-a-time \
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$(INHIBIT_LIBC_CFLAGS)
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# Additional sources to handle exceptions; overridden by targets as needed.
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LIB2ADDEH = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde.c \
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@ -1393,33 +1402,33 @@ stmp-multilib: $(LIBGCC_DEPS)
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$(T)crtbegin.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
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gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
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$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS) \
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@inhibit_libc@ -c $(srcdir)/crtstuff.c -DCRT_BEGIN \
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-c $(srcdir)/crtstuff.c -DCRT_BEGIN \
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-o $(T)crtbegin$(objext)
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$(T)crtend.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
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gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
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$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS) \
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@inhibit_libc@ -c $(srcdir)/crtstuff.c -DCRT_END \
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-c $(srcdir)/crtstuff.c -DCRT_END \
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-o $(T)crtend$(objext)
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# These are versions of crtbegin and crtend for shared libraries.
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$(T)crtbeginS.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
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gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
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$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS_S) \
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@inhibit_libc@ -c $(srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFS_O \
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-c $(srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFS_O \
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-o $(T)crtbeginS$(objext)
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$(T)crtendS.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
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gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
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$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS_S) \
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@inhibit_libc@ -c $(srcdir)/crtstuff.c -DCRT_END -DCRTSTUFFS_O \
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-c $(srcdir)/crtstuff.c -DCRT_END -DCRTSTUFFS_O \
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-o $(T)crtendS$(objext)
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# This is a version of crtbegin for -static links.
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$(T)crtbeginT.o: crtstuff.c $(GCC_PASSES) $(TCONFIG_H) auto-host.h \
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gbl-ctors.h stmp-int-hdrs tsystem.h coretypes.h $(TM_H)
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$(GCC_FOR_TARGET) $(CRTSTUFF_CFLAGS) $(CRTSTUFF_T_CFLAGS) \
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@inhibit_libc@ -c $(srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O \
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-c $(srcdir)/crtstuff.c -DCRT_BEGIN -DCRTSTUFFT_O \
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-o $(T)crtbeginT$(objext)
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# Compile the start modules crt0.o and mcrt0.o that are linked with
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@ -3137,7 +3146,7 @@ s-macro_list : $(GCC_PASSES)
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stmp-fixinc: gsyslimits.h macro_list \
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$(build_objdir)/fixincludes/fixincl \
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$(build_objdir)/fixincludes/fixinc.sh
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@if test ! -d ${SYSTEM_HEADER_DIR}; then \
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@if ! $(inhibit_libc) && test ! -d ${SYSTEM_HEADER_DIR}; then \
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echo The directory that should contain system headers does not exist: >&2 ; \
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echo " ${SYSTEM_HEADER_DIR}" >&2 ; \
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if test "x${SYSTEM_HEADER_DIR}" = "x${gcc_tooldir}/sys-include"; \
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28
gcc/configure
vendored
28
gcc/configure
vendored
@ -922,6 +922,8 @@ Optional Packages:
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--with-as arrange to use the specified as (full pathname)
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--with-stabs arrange to use stabs instead of host debug format
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--with-dwarf2 force the default debug format to be DWARF 2
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--with-build-sysroot=sysroot
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use sysroot as the system root during the build
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--with-sysroot=DIR Search for usr/lib, usr/include, et al, within DIR.
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--with-gnu-ld assume the C compiler uses GNU ld default=no
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--with-libiconv-prefix[=DIR] search for libiconv in DIR/include and DIR/lib
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@ -6934,6 +6936,13 @@ fi;
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# Check whether --with-build-sysroot or --without-build-sysroot was given.
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if test "${with_build_sysroot+set}" = set; then
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withval="$with_build_sysroot"
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fi;
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# Check whether --with-sysroot or --without-sysroot was given.
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if test "${with_sysroot+set}" = set; then
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withval="$with_sysroot"
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@ -6945,6 +6954,11 @@ if test "${with_sysroot+set}" = set; then
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TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
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CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
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if test "x$with_build_sysroot" != x; then
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build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
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else
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build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
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fi
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if test "x$exec_prefix" = xNONE; then
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if test "x$prefix" = xNONE; then
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@ -7464,7 +7478,7 @@ if test "${gcc_cv_prog_makeinfo_modern+set}" = set; then
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else
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ac_prog_version=`$MAKEINFO --version 2>&1 |
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sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'`
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echo "configure:7467: version of makeinfo is $ac_prog_version" >&5
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echo "configure:7481: version of makeinfo is $ac_prog_version" >&5
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case $ac_prog_version in
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'') gcc_cv_prog_makeinfo_modern=no;;
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4.[2-9]*)
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@ -12737,7 +12751,7 @@ if test x$host != x$target
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then
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CROSS="-DCROSS_COMPILE"
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ALL=all.cross
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SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
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SYSTEM_HEADER_DIR=$build_system_header_dir
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case "$host","$target" in
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# Darwin crosses can use the host system's libraries and headers,
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# because of the fat library support. Of course, it must be the
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@ -12771,11 +12785,11 @@ fi
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# then define inhibit_libc in LIBGCC2_CFLAGS.
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# This prevents libgcc2 from containing any code which requires libc
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# support.
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inhibit_libc=
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inhibit_libc=false
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if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
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test x$with_newlib = xyes ; } &&
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{ test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
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inhibit_libc=-Dinhibit_libc
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inhibit_libc=true
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fi
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@ -13059,7 +13073,7 @@ fi
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test -n "$gcc_cv_as" && break
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done
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test -n "$gcc_cv_as" || gcc_cv_as="$gcc_cv_tool_prefix/bin/$default_tool_name$build_exeext"
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test -n "$gcc_cv_as" || gcc_cv_as="$gcc_cv_tool_prefix/$default_tool_name$build_exeext"
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fi
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test "$silent" != yes && exec 6>&1
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@ -13237,7 +13251,7 @@ fi
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test -n "$gcc_cv_ld" && break
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done
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test -n "$gcc_cv_ld" || gcc_cv_ld="$gcc_cv_tool_prefix/bin/$default_tool_name$build_exeext"
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test -n "$gcc_cv_ld" || gcc_cv_ld="$gcc_cv_tool_prefix/$default_tool_name$build_exeext"
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fi
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test "$silent" != yes && exec 6>&1
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@ -13381,7 +13395,7 @@ fi
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test -n "$gcc_cv_nm" && break
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done
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test -n "$gcc_cv_nm" || gcc_cv_nm="$gcc_cv_tool_prefix/bin/$default_tool_name$build_exeext"
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test -n "$gcc_cv_nm" || gcc_cv_nm="$gcc_cv_tool_prefix/$default_tool_name$build_exeext"
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fi
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test "$silent" != yes && exec 6>&1
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@ -681,6 +681,10 @@ AC_ARG_ENABLE(shared,
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], [enable_shared=yes])
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AC_SUBST(enable_shared)
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AC_ARG_WITH(build-sysroot,
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[ --with-build-sysroot=sysroot
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use sysroot as the system root during the build])
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AC_ARG_WITH(sysroot,
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[ --with-sysroot[=DIR] Search for usr/lib, usr/include, et al, within DIR.],
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[
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@ -691,6 +695,11 @@ AC_ARG_WITH(sysroot,
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TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
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CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$(NATIVE_SYSTEM_HEADER_DIR)'
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if test "x$with_build_sysroot" != x; then
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build_system_header_dir=$with_build_sysroot'$(NATIVE_SYSTEM_HEADER_DIR)'
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else
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build_system_header_dir='$(CROSS_SYSTEM_HEADER_DIR)'
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fi
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|
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if test "x$exec_prefix" = xNONE; then
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if test "x$prefix" = xNONE; then
|
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@ -1643,7 +1652,7 @@ if test x$host != x$target
|
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then
|
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CROSS="-DCROSS_COMPILE"
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ALL=all.cross
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SYSTEM_HEADER_DIR='$(CROSS_SYSTEM_HEADER_DIR)'
|
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SYSTEM_HEADER_DIR=$build_system_header_dir
|
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case "$host","$target" in
|
||||
# Darwin crosses can use the host system's libraries and headers,
|
||||
# because of the fat library support. Of course, it must be the
|
||||
@ -1677,11 +1686,11 @@ fi
|
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# then define inhibit_libc in LIBGCC2_CFLAGS.
|
||||
# This prevents libgcc2 from containing any code which requires libc
|
||||
# support.
|
||||
inhibit_libc=
|
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inhibit_libc=false
|
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if { { test x$host != x$target && test "x$with_sysroot" = x ; } ||
|
||||
test x$with_newlib = xyes ; } &&
|
||||
{ test "x$with_headers" = x || test "x$with_headers" = xno ; } ; then
|
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inhibit_libc=-Dinhibit_libc
|
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inhibit_libc=true
|
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fi
|
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AC_SUBST(inhibit_libc)
|
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|
||||
|
||||
@ -478,6 +478,11 @@ Append @var{dir} to the prefix specified previously with
|
||||
path. @option{-iwithprefixbefore} puts it in the same place @option{-I}
|
||||
would; @option{-iwithprefix} puts it where @option{-idirafter} would.
|
||||
|
||||
@item -isysroot @var{dir}
|
||||
@opindex isysroot
|
||||
This option is like the @option{--sysroot} option, but applies only to
|
||||
header files. See the @option{--sysroot} option for more information.
|
||||
|
||||
@item -isystem @var{dir}
|
||||
@opindex isystem
|
||||
Search @var{dir} for header files, after all directories specified by
|
||||
|
||||
@ -1228,6 +1228,16 @@ in case @option{--with-sysroot} is not given an argument, is
|
||||
subdirectory of @option{$@{exec_prefix@}}, then it will be found relative to
|
||||
the GCC binaries if the installation tree is moved.
|
||||
|
||||
@item --with-build-sysroot
|
||||
@itemx --with-build-sysroot=@var{dir}
|
||||
Tells GCC to consider @var{dir} as the system root (see
|
||||
@option{--with-sysroot}) while building the compiler itself, instead of
|
||||
the directory specified with @option{--with-sysroot}. This option is
|
||||
only useful when you are already using @option{--with-sysroot}. You
|
||||
can use @option{--with-build-sysroot} when you are configure with
|
||||
@option{--prefix} set to a directory that is different from the one in
|
||||
which you are installing GCC and your target libraries.
|
||||
|
||||
@item --with-headers
|
||||
@itemx --with-headers=@var{dir}
|
||||
Deprecated in favor of @option{--with-sysroot}.
|
||||
|
||||
@ -349,6 +349,7 @@ Objective-C and Objective-C++ Dialects}.
|
||||
-include @var{file} -imacros @var{file} @gol
|
||||
-iprefix @var{file} -iwithprefix @var{dir} @gol
|
||||
-iwithprefixbefore @var{dir} -isystem @var{dir} @gol
|
||||
-isysroot @var{dir} @gol
|
||||
-M -MM -MF -MG -MP -MQ -MT -nostdinc @gol
|
||||
-P -fworking-directory -remap @gol
|
||||
-trigraphs -undef -U@var{macro} -Wp,@var{option} @gol
|
||||
@ -368,7 +369,8 @@ Objective-C and Objective-C++ Dialects}.
|
||||
|
||||
@item Directory Options
|
||||
@xref{Directory Options,,Options for Directory Search}.
|
||||
@gccoptlist{-B@var{prefix} -I@var{dir} -iquote@var{dir} -L@var{dir} -specs=@var{file} -I-}
|
||||
@gccoptlist{-B@var{prefix} -I@var{dir} -iquote@var{dir} -L@var{dir}
|
||||
-specs=@var{file} -I- --sysroot=@var{dir}}
|
||||
|
||||
@item Target Options
|
||||
@c I wrote this xref this way to avoid overfull hbox. -- rms
|
||||
@ -6372,6 +6374,22 @@ program uses when determining what switches to pass to @file{cc1},
|
||||
@option{-specs=@var{file}} can be specified on the command line, and they
|
||||
are processed in order, from left to right.
|
||||
|
||||
@item --sysroot=@var{dir}
|
||||
@opindex sysroot
|
||||
Use @var{dir} as the logical root directory for headers and libraries.
|
||||
For example, if the compiler would normally search for headers in
|
||||
@file{/usr/include} and libraries in @file{/usr/lib}, it will instead
|
||||
search @file{@var{dir}/usr/include} and @file{@var{dir}/usr/lib}.
|
||||
|
||||
If you use both this option and the @option{-isysroot} option, then
|
||||
the @option{--sysroot} option will apply to libraries, but the
|
||||
@option{-isysroot} option will apply to header files.
|
||||
|
||||
The GNU linker (beginning with version 2.16) has the necessary support
|
||||
for this option. If your linker does not support this option, the
|
||||
header file aspect of @option{--sysroot} will still work, but the
|
||||
library aspect will not.
|
||||
|
||||
@item -I-
|
||||
@opindex I-
|
||||
This option has been deprecated. Please use @option{-iquote} instead for
|
||||
|
||||
@ -1120,6 +1120,7 @@ static const struct option_map option_map[] =
|
||||
{"--static", "-static", 0},
|
||||
{"--std", "-std=", "aj"},
|
||||
{"--symbolic", "-symbolic", 0},
|
||||
{"--sysroot", "--sysroot=", "aj"},
|
||||
{"--time", "-time", 0},
|
||||
{"--trace-includes", "-H", 0},
|
||||
{"--traditional", "-traditional", 0},
|
||||
@ -3064,6 +3065,9 @@ display_help (void)
|
||||
fputs (_(" -time Time the execution of each subprocess\n"), stdout);
|
||||
fputs (_(" -specs=<file> Override built-in specs with the contents of <file>\n"), stdout);
|
||||
fputs (_(" -std=<standard> Assume that the input sources are for <standard>\n"), stdout);
|
||||
fputs (_("\
|
||||
--sysroot=<directory> Use <directory> as the root directory for headers\n\
|
||||
for headers and libraries\n"), stdout);
|
||||
fputs (_(" -B <directory> Add <directory> to the compiler's search paths\n"), stdout);
|
||||
fputs (_(" -b <machine> Run gcc for target <machine>, if installed\n"), stdout);
|
||||
fputs (_(" -V <version> Run gcc version number <version>, if installed\n"), stdout);
|
||||
@ -3926,6 +3930,11 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"
|
||||
;
|
||||
else if (! strcmp (argv[i], "-fhelp"))
|
||||
;
|
||||
else if (! strncmp (argv[i], "--sysroot=", strlen ("--sysroot=")))
|
||||
{
|
||||
target_system_root = argv[i] + strlen ("--sysroot=");
|
||||
target_system_root_changed = 1;
|
||||
}
|
||||
else if (argv[i][0] == '+' && argv[i][1] == 'e')
|
||||
{
|
||||
/* Compensate for the +e options to the C++ front-end;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user