* config.gcc (mips64*-*-linux*): Added.

* config/mips/linux64.h, config/mips/t-linux64: New file.
* config/mips/iris6.h (MIPS_TFMODE_FORMAT): Define.
* config/mips/mips.c (override_options): Use it.
* config/mips/mips.h (TARGET_SWITCHES): Added...
(SUBTARGET_TARGET_SWITCHES): New, empty by default.
* Makefile.in (SPECS): New.
(STAGESTUFF, specs, mostlyclean, install-common): Use it.
* gcc.c (process_command): Move self-spec processing past spec
file loading.
* doc/tm.texi (DRIVER_SELF_SPECS): Document the change.
* doc/fragments.texi (MULTILIB_EXTRA_OPTS): Document need for
CRTSTUFF_T_CFLAGS.
(SPECS): Document.
* doc/invoke.texi (-mabi-fake-default): Document.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@61481 138bc75d-0d04-0410-961f-82ee72b054a4

12 files changed, 262 insertions, 21 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d0f96adbbc4..f300181d287 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,21 @@
+2003-01-19  Alexandre Oliva  <aoliva@redhat.com>
+
+	* config.gcc (mips64*-*-linux*): Added.
+	* config/mips/linux64.h, config/mips/t-linux64: New file.
+	* config/mips/iris6.h (MIPS_TFMODE_FORMAT): Define.
+	* config/mips/mips.c (override_options): Use it.
+	* config/mips/mips.h (TARGET_SWITCHES): Added...
+	(SUBTARGET_TARGET_SWITCHES): New, empty by default.
+	* Makefile.in (SPECS): New.
+	(STAGESTUFF, specs, mostlyclean, install-common): Use it.
+	* gcc.c (process_command): Move self-spec processing past spec
+	file loading.
+	* doc/tm.texi (DRIVER_SELF_SPECS): Document the change.
+	* doc/fragments.texi (MULTILIB_EXTRA_OPTS): Document need for
+	CRTSTUFF_T_CFLAGS.
+	(SPECS): Document.
+	* doc/invoke.texi (-mabi-fake-default): Document.
+
 2003-01-19  Stephane Carrez  <stcarrez@nerim.fr>
 
 	* config/m68hc11/m68hc11.c (stack_push_word, stack_pop_word,
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index dbd6a688ca2..7ae08fca892 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -549,6 +549,13 @@ T =
 T_TARGET =
 T_TARGET : $(T_TARGET)
 
+# This should name the specs file that we're going to install.  Target
+# Makefiles may override it and name another file to be generated from
+# the built-in specs and installed as the default spec, as long as
+# they also introduce a rule to generate a file name specs, to be used
+# at build time.
+SPECS = specs
+
 # End of variables for you to override.
 
 # Definition of `all' is here so that new rules inserted by sed
@@ -788,7 +795,7 @@ STAGESTUFF = *$(objext) insn-flags.h insn-config.h insn-codes.h \
  xgcc$(exeext) cpp$(exeext) cc1$(exeext) $(EXTRA_PASSES) \
  $(EXTRA_PARTS) $(EXTRA_PROGRAMS) gcc-cross$(exeext) cc1obj$(exeext) \
  protoize$(exeext) unprotoize$(exeext) \
- specs collect2$(exeext) $(USE_COLLECT2) \
+ $(SPECS) collect2$(exeext) $(USE_COLLECT2) \
  gcov-iov$(build_exeext) gcov$(exeext) gcov-dump$(exeext) \
  *.[0-9][0-9].* *.[si] libcpp.a libbackend.a libgcc.mk \
  $(LANG_STAGESTUFF)
@@ -994,9 +1001,9 @@ cpp$(exeext): gcc.o cppspec.o version.o intl.o prefix.o \
 	  prefix.o version.o $(EXTRA_GCC_OBJS) $(LIBS)
 
 # Dump a specs file to make -B./ read these specs over installed ones.
-specs: xgcc$(exeext)
+$(SPECS): xgcc$(exeext)
 	$(GCC_FOR_TARGET) -dumpspecs > tmp-specs
-	mv tmp-specs specs
+	mv tmp-specs $(SPECS)
 
 # We do want to create an executable named `xgcc', so we can use it to
 # compile libgcc2.a.
@@ -2668,7 +2675,7 @@ mostlyclean: $(INTL_MOSTLYCLEAN) lang.mostlyclean
 # Delete debugging dump files.
 	-rm -f *.[0-9][0-9].* */*.[0-9][0-9].*
 # Delete some files made during installation.
-	-rm -f specs SYSCALLS.c.X SYSCALLS.c
+	-rm -f specs $(SPECS) SYSCALLS.c.X SYSCALLS.c
 	-rm -f collect collect2 mips-tfile mips-tdump
 # Delete files generated for fixproto
 	-rm -rf fix-header$(build_exeext) xsys-protos.h deduced.h tmp-deduced.h \
@@ -2841,7 +2848,7 @@ install-common: native $(EXTRA_PARTS) lang.install-common
 # Don't mess with specs if it doesn't exist yet.
 	-if [ -f specs ] ; then \
 	  rm -f $(DESTDIR)$(libsubdir)/specs; \
-	  $(INSTALL_DATA) specs $(DESTDIR)$(libsubdir)/specs; \
+	  $(INSTALL_DATA) $(SPECS) $(DESTDIR)$(libsubdir)/specs; \
 	  chmod a-x $(DESTDIR)$(libsubdir)/specs; \
 	fi
 # Install protoize if it was compiled.
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 6a71f638671..9f74569872f 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1,5 +1,6 @@
 # GCC build-, host- and target-specific configuration file.
-# Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+# Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003
+# Free Software Foundation, Inc.
 
 #This file is part of GCC.
 
@@ -1802,6 +1803,24 @@ mips*-*-netbsd*)			# NetBSD/mips, either endian.
 	tm_file="elfos.h ${tm_file} mips/netbsd.h"
 	tmake_file="${tmake_file}"
 	;;
+mips64*-*-linux*)
+	tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h mips/linux64.h"
+	tmake_file="t-slibgcc-elf-ver t-linux mips/t-linux mips/t-linux64"
+
+	# This default ABI is a partial lie: t-linux64 overrides the
+	# DRIVER_SELF_SPEC that sets the default abi, in the spec file
+	# that is installed.  What GCC thinks of as the default must
+	# remain as ABI_32 such that the SONAMEs of the libgcc shared
+	# libraries remain compatible with those of mips-linux-gnu.
+	tm_defines="MIPS_ISA_DEFAULT=1 MIPS_ABI_DEFAULT=ABI_32"
+	target_cpu_default="MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT"
+	extra_parts="crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o"
+	gnu_ld=yes
+	gas=yes
+	if test x$enable_threads = xyes; then
+		thread_file='posix'
+	fi
+	;;
 mips*-*-linux*)				# Linux MIPS, either endian.
         tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} mips/linux.h"
 	case $machine in
diff --git a/gcc/config/mips/iris6.h b/gcc/config/mips/iris6.h
index ddfea8f1473..314f98ca43c 100644
--- a/gcc/config/mips/iris6.h
+++ b/gcc/config/mips/iris6.h
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler.  Iris version 6.
-   Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002
+   Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
 This file is part of GNU CC.
@@ -509,3 +509,5 @@ do {									 \
 %{shared:-hidden_symbol __do_global_ctors,__do_global_ctors_1,__do_global_dtors} \
 -_SYSTYPE_SVR4 -woff 131 \
 %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}"
+
+#define MIPS_TFMODE_FORMAT ibm_extended_format
diff --git a/gcc/config/mips/linux64.h b/gcc/config/mips/linux64.h
new file mode 100644
index 00000000000..ef30146c988
--- /dev/null
+++ b/gcc/config/mips/linux64.h
@@ -0,0 +1,99 @@
+/* Definitions for MIPS running Linux-based GNU systems with ELF format
+   using n32/64 abi.
+   Copyright 2002, 2003 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* This sets the post-install default ABI to n32.  This must NOT be
+   kept in sync with the default ABI in gcc/config.gcc; it's actually
+   meant to override that.  However, for correct behavior at build
+   time, we also need t-linux64 to get the build-time specs in line
+   with the setting in config.gcc.  */
+#define DRIVER_DEFAULT_ABI_SELF_SPEC "%{!mabi=*:-mabi=n32}"
+#define SUBTARGET_EXTRA_SPECS \
+  { "driver_default_abi_self_spec", DRIVER_DEFAULT_ABI_SELF_SPEC },
+#define DRIVER_SELF_SPECS \
+"%{mabi-fake-default:%{!mabi=*:-mabi=32}}", \
+"%(driver_default_abi_self_spec)", \
+"%{!mips*:%{mabi=32:-mips1}%{mabi=n32:-mips3}%{mabi=64:-mips4}}"
+#undef SUBTARGET_TARGET_SWITCHES
+#define SUBTARGET_TARGET_SWITCHES \
+  { "abi-fake-default", 0, N_("Same as -mabi=32, just trickier") },
+
+#undef SUBTARGET_ASM_SPEC
+#define SUBTARGET_ASM_SPEC "\
+%{!fno-PIC:%{!fno-pic:-KPIC}} \
+%{fno-PIC:-non_shared} %{fno-pic:-non_shared} \
+%{mabi=64:-64} %{mabi=n32:-n32} \
+%{!mips*: %{mabi=n32|mabi=32:-mips3} %{mabi=64:-mips4}}"
+
+#undef LIB_SPEC
+#define LIB_SPEC "\
+%{!static: \
+ %{mabi=n32:-rpath-link %R/lib32:%R/usr/lib32} \
+ %{mabi=64:-rpath-link %R/lib64:%R/usr/lib64} \
+ %{mabi=32:-rpath-link %R/lib:%R/usr/lib}} \
+%{!shared: %{pthread:-lthread} %{profile:-lc_p} %{!profile: -lc}}"
+
+#undef LINK_SPEC
+#define LINK_SPEC "\
+%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
+%{bestGnum} %{shared} %{non_shared} \
+%{call_shared} %{no_archive} %{exact_version} \
+ %(endian_spec) \
+  %{!shared: \
+    %{!ibcs: \
+      %{!static: \
+        %{rdynamic:-export-dynamic} \
+        %{!dynamic-linker: \
+	  %{mabi=n32: -dynamic-linker /lib32/ld.so.1} \
+	  %{mabi=64: -dynamic-linker /lib64/ld.so.1} \
+	  %{mabi=32: -dynamic-linker /lib/ld.so.1}}} \
+      %{static:-static}}} \
+%{mabi=n32: -melf32btsmipn32} \
+%{mabi=64: -melf64btsmip} \
+%{mabi=32: -melf32btsmip}"
+
+#undef STARTFILE_PREFIX_SPEC
+#define STARTFILE_PREFIX_SPEC "\
+%{mabi=n32: /lib32/ /usr/lib32/} \
+%{mabi=64: /lib64/ /usr/lib64/} \
+%{mabi=32: /lib/ /usr/lib/}"
+
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX ((mips_abi == ABI_32 || mips_abi == ABI_O64) \
+			    ? "$" : ".")
+
+/* The size in bytes of a DWARF field indicating an offset or length
+   relative to a debug info section, specified to be 4 bytes in the DWARF-2
+   specification.  The SGI/MIPS ABI defines it to be the same as PTR_SIZE.  */
+#define DWARF_OFFSET_SIZE PTR_SIZE
+
+#undef ASM_PREFERRED_EH_DATA_FORMAT
+#if 0  /* We can't use relative addressing modes on NEWABI :-(  */
+#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL)       		\
+   (flag_pic								\
+    ? ((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_sdata4		\
+    : DW_EH_PE_absptr)
+#endif
+
+/* GNU/Linux doesn't use the same floating-point format that IRIX uses
+   for long double.  There's no need to override this here, since
+   ieee_quad_format is the default, but let's put this here to make
+   sure nobody thinks we just forgot to set it to something else.  */
+#define MIPS_TFMODE_FORMAT ieee_quad_format
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 5c0b78af698..c0133fafdb2 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -5359,6 +5359,10 @@ override_options ()
   else
     mips16 = 0;
 
+#ifdef MIPS_TFMODE_FORMAT
+  real_format_for_mode[TFmode - QFmode] = &MIPS_TFMODE_FORMAT;
+#endif
+  
   mips_print_operand_punct['?'] = 1;
   mips_print_operand_punct['#'] = 1;
   mips_print_operand_punct['&'] = 1;
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index 2514006d181..09d46632fe3 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -534,6 +534,7 @@ extern void		sbss_section PARAMS ((void));
 
 #define TARGET_SWITCHES							\
 {									\
+  SUBTARGET_TARGET_SWITCHES						\
   {"no-crt0",          0,                                               \
      N_("No default crt0.o") },					 	\
   {"int64",		  MASK_INT64 | MASK_LONG64,			\
@@ -993,6 +994,7 @@ extern void		sbss_section PARAMS ((void));
 
 #define GAS_ASM_SPEC "%{mtune=*} %{v}"
 
+#define SUBTARGET_TARGET_SWITCHES
 
 extern int mips_abi;
 
diff --git a/gcc/config/mips/t-linux64 b/gcc/config/mips/t-linux64
new file mode 100644
index 00000000000..cf639287770
--- /dev/null
+++ b/gcc/config/mips/t-linux64
@@ -0,0 +1,41 @@
+MULTILIB_OPTIONS = mabi=32/mabi=n32/mabi=64
+MULTILIB_DIRNAMES = o32 32 64
+MULTILIB_OSDIRNAMES = ../lib ../lib32 ../lib64
+
+EXTRA_MULTILIB_PARTS=crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o
+
+LIB2FUNCS_EXTRA = $(srcdir)/config/mips/_tilib.c
+
+TPBIT = tp-bit.c
+
+tp-bit.c: $(srcdir)/config/fp-bit.c
+	echo '#ifdef __MIPSEL__' > tp-bit.c
+	echo '# define FLOAT_BIT_ORDER_MISMATCH' >> tp-bit.c
+	echo '#endif' >> tp-bit.c
+	echo '#if __LDBL_MANT_DIG__ == 113' >> tp-bit.c
+	echo '# define TFLOAT' >> tp-bit.c
+	cat $(srcdir)/config/fp-bit.c >> tp-bit.c
+	echo '#endif' >> tp-bit.c
+
+# This arranges for us to extract the built-in specs of the compiler
+# into specs.install.  It's this file that we're going to install as
+# specs.  Howver, at toolchain build time, we must use specs that
+# enforce the defaults that the compiler expects, namely, the o32 ABI,
+# instead of n32, that we want to use as the default post install.
+SPECS = specs.install
+specs: specs.install
+	# Changing the build-time default ABI from n32 to o32
+	# The post-install default ABI will remain n32
+	@if test "x`grep '!mabi=\*:-mabi=n32' specs.install`" = \
+		"x%{!mabi=*:-mabi=n32}"; then \
+	  sed 's,\(!mabi=\*:-mabi\)=n32,\1=32,' < specs.install > $@ ; \
+	else \
+	  echo failed, gcc/config/mips/t-linux64 needs updating >&2; \
+	  false; \
+	fi
+
+# This arranges for anyone who uses gcc -print-multi-lib post
+# installation to get lists of options for each multilib to get
+# options that actually work.
+MULTILIB_EXTRA_OPTS = mabi-fake-default
+CRTSTUFF_T_CFLAGS = -mabi-fake-default
diff --git a/gcc/doc/fragments.texi b/gcc/doc/fragments.texi
index f9ef3d22b82..798745584cd 100644
--- a/gcc/doc/fragments.texi
+++ b/gcc/doc/fragments.texi
@@ -1,5 +1,5 @@
 @c Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-@c 1999, 2000, 2001 Free Software Foundation, Inc.
+@c 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
 @c This is part of the GCC manual.
 @c For copying conditions, see the file gcc.texi.
 
@@ -147,7 +147,24 @@ at the same time.  Therefore @code{MULTILIB_EXCEPTIONS} is set to
 Sometimes it is desirable that when building multiple versions of
 @file{libgcc.a} certain options should always be passed on to the
 compiler.  In that case, set @code{MULTILIB_EXTRA_OPTS} to be the list
-of options to be used for all builds.
+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 SPECS
+@item SPECS
+Unfortunately, setting @code{MULTILIB_EXTRA_OPTS} is not enough, since
+it does not affect the build of target libraries, at least not the
+build of the default multilib.  One possible work-around is to use
+@code{DRIVER_SELF_SPECS} to bring options from the @file{specs} file
+as if they had been passed in the compiler driver command line.
+However, you don't want to be adding these options after the toolchain
+is installed, so you can instead tweak the @file{specs} file that will
+be used during the toolchain build, while you still install the
+original, built-in @file{specs}.  The trick is to set @code{SPECS} to
+some other filename (say @file{specs.install}), that will then be
+created out of the built-in specs, and introduce a @file{Makefile}
+rule to generate the @file{specs} file that's going to be used at
+build time out of your @file{specs.install}.
 @end table
 
 @node Host Fragment
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 34b597a0925..ebf340793ce 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -491,7 +491,7 @@ in the following sections.
 -mrnames  -msoft-float @gol
 -m4650  -msingle-float  -mmad @gol
 -mstats  -EL  -EB  -G @var{num}  -nocpp @gol
--mabi=32  -mabi=n32  -mabi=64  -mabi=eabi @gol
+-mabi=32  -mabi=n32  -mabi=64  -mabi=eabi  -mabi-fake-default @gol
 -mfix7000  -mno-crt0 -mflush-func=@var{func} -mno-flush-func @gol
 -mbranch-likely -mno-branch-likely}
 
@@ -7465,6 +7465,37 @@ selects the one defined by MIPS@.  Both these ABIs have
 64-bit code when you select a 64-bit architecture, but you
 can use @option{-mgp32} to get 32-bit code instead.
 
+@item -mabi-fake-default
+@opindex mabi-fake-default
+You don't want to know what this option does.  No, really.  I mean
+it.  Move on to the next option.
+
+What?  You're still here?  Oh, well@enddots{}  Ok, here's the deal.  GCC
+wants the default set of options to get the root of the multilib tree,
+and the shared library SONAMEs without any multilib-indicating
+suffixes.  This is not convenience for @samp{mips64-linux-gnu}, since
+we want to default to the N32 ABI, while still being binary-compatible
+with @samp{mips-linux-gnu} if you stick to the O32 ABI@.  Being
+binary-compatible means shared libraries should have the same SONAMEs,
+and libraries should live in the same location.  Having O32 libraries
+in a sub-directory named say @file{o32} is not acceptable.
+
+So we trick GCC into believing that O32 is the default ABI, except
+that we override the default with some internal command-line
+processing magic.  Problem is, if we stopped at that, and you then
+created a multilib-aware package that used the output of @command{gcc
+-print-multi-lib} to decide which multilibs to build, and how, and
+you'd find yourself in an awkward situation when you found out that
+some of the options listed ended up mapping to the same multilib, and
+none of your libraries was actually built for the multilib that
+@option{-print-multi-lib} claims to be the default.  So we added this
+option that disables the default switcher, falling back to GCC's
+original notion of the default library.  Confused yet?
+
+For short: don't ever use this option, unless you find it in the list
+of additional options to be used when building for multilibs, in the
+output of @option{gcc -print-multi-lib}.
+
 @item -mmips-as
 @opindex mmips-as
 Generate code for the MIPS assembler, and invoke @file{mips-tfile} to
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 45f38f0f921..bc883331f95 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -168,11 +168,12 @@ multilibs.  Example nonsensical definition, where @code{-malt-abi},
 A list of specs for the driver itself.  It should be a suitable
 initializer for an array of strings, with no surrounding braces.
 
-The driver applies these specs to its own command line before choosing
-the multilib directory or running any subcommands.  It applies them in
-the order given, so each spec can depend on the options added by
-earlier ones.  It is also possible to remove options using
-@samp{%<@var{option}} in the usual way.
+The driver applies these specs to its own command line between loading
+default @file{specs} files (but not command-line specified ones) and
+choosing the multilib directory or running any subcommands.  It
+applies them in the order given, so each spec can depend on the
+options added by earlier ones.  It is also possible to remove options
+using @samp{%<@var{option}} in the usual way.
 
 This macro can be useful when a port has several interdependent target
 options.  It provides a way of standardizing the command line so
diff --git a/gcc/gcc.c b/gcc/gcc.c
index 7c22f925bf8..ca3a51337f6 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -6198,12 +6198,6 @@ main (argc, argv)
 
   process_command (argc, argv);
 
-  /* Process DRIVER_SELF_SPECS, adding any new options to the end
-     of the command line.  */
-
-  for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
-    do_self_spec (driver_self_specs[i]);
-
   /* Initialize the vector of specs to just the default.
      This means one element containing 0s, as a terminator.  */
 
@@ -6237,6 +6231,12 @@ main (argc, argv)
   if (access (specs_file, R_OK) == 0)
     read_specs (specs_file, TRUE);
 
+  /* Process DRIVER_SELF_SPECS, adding any new options to the end
+     of the command line.  */
+
+  for (i = 0; i < ARRAY_SIZE (driver_self_specs); i++)
+    do_self_spec (driver_self_specs[i]);
+
   /* If not cross-compiling, look for executables in the standard
      places.  */
   if (*cross_compile == '0')