Fix PR20425, multilib paths for -print-search-dirs

[Alan Modra]

On Fri, Dec 16, 2005 at 07:57:48AM +0100, Andreas Jaeger wrote:
> We did the builds on i386, x86-64 (with multilibs), ppc (with
> multilibs) and ia64 and did not find any obvious problems,

I've committed the patch, along with the following

	* doc/hostconfig.texi (SMALL_ARG_MAX): Remove mention.
	* system.h (SMALL_ARG_MAX): Poison.
	* config.gcc: Don't define SMALL_ARG_MAX.
	* config.host: Likewise.
	* config.build: Likewise.

Index: gcc/doc/hostconfig.texi
===================================================================
--- gcc/doc/hostconfig.texi	(revision 108633)
+++ gcc/doc/hostconfig.texi	(working copy)
@@ -208,11 +208,6 @@ initialization when @code{collect2} is b
 If defined, a C statement (sans semicolon) that performs host-dependent
 initialization when a compilation driver is being initialized.
 
-@item SMALL_ARG_MAX
-Define this macro if the host system has a small limit on the total
-size of an argument vector.  This causes the driver to take more care
-not to pass unnecessary arguments to subprocesses.
-
 @item HOST_LONG_LONG_FORMAT
 If defined, the string used to indicate an argument of type @code{long
 long} to functions like @code{printf}.  The default value is
Index: gcc/system.h
===================================================================
--- gcc/system.h	(revision 108633)
+++ gcc/system.h	(working copy)
@@ -730,7 +730,8 @@ extern void fancy_abort (const char *, i
 	TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC	   \
 	PREDICATE_CODES SPECIAL_MODE_PREDICATES HOST_PTR_PRINTF		   \
 	EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION	   \
-	TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION
+	TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION	   \
+	SMALL_ARG_MAX
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\
Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc	(revision 108633)
+++ gcc/config.gcc	(working copy)
@@ -984,7 +984,6 @@ i[34567]86-sequent-ptx4* | i[34567]86-se
 	then
 		tm_file="${tm_file} usegas.h"
 	fi
-	xm_defines="SMALL_ARG_MAX"
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h ptx4.h i386/ptx4-i.h"
 	tmake_file=t-svr4
 	extra_parts="crtbegin.o crtend.o"
@@ -1115,7 +1114,6 @@ i[34567]86-*-sco3.2v5*)	# 80386 running 
 	use_fixproto=yes
 	;;
 i[34567]86-*-solaris2*)
-	xm_defines="SMALL_ARG_MAX"
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h i386/sysv4.h sol2.h"
 	case ${target} in
 	*-*-solaris2.[0-6] | *-*-solaris2.[0-6].*)
@@ -1182,7 +1180,6 @@ i[34567]86-*-sysv5*)           # Intel x
 	use_fixproto=yes
        ;;
 i[34567]86-*-sysv4*)		# Intel 80386's running system V.4
-	xm_defines="SMALL_ARG_MAX"
 	tm_file="${tm_file} i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h i386/sysv4.h i386/sysv4-cpp.h"
 	if test x$stabs = xyes
 	then
Index: gcc/config.host
===================================================================
--- gcc/config.host	(revision 108633)
+++ gcc/config.host	(working copy)
@@ -132,17 +132,10 @@ case ${host} in
   i370-*-opened* | i370-*-mvs* ) # IBM 360/370/390 Architecture
     host_xm_defines='FATAL_EXIT_CODE=12'
     ;;
-  i[34567]86-sequent-ptx4*)
-    host_xm_defines="SMALL_ARG_MAX"
-    ;;
   i[34567]86-*-solaris2*)
-    host_xm_defines="SMALL_ARG_MAX"
     out_host_hook_obj=host-solaris.o
     host_xmake_file=x-solaris
     ;;
-  i[34567]86-*-sysv4*) # Intel 80386's running System V Release 4
-    host_xm_defines="SMALL_ARG_MAX"
-    ;;
   i[34567]86-pc-msdosdjgpp*)
     host_xm_file=i386/xm-djgpp.h
     host_exeext=.exe
Index: gcc/config.build
===================================================================
--- gcc/config.build	(revision 108633)
+++ gcc/config.build	(working copy)
@@ -90,15 +90,10 @@ case $build in
     build_install_headers_dir=install-headers-cpio
     ;;
   i[34567]86-sequent-ptx4* | i[34567]86-sequent-sysv4* )
-    build_xm_defines="SMALL_ARG_MAX"
     build_install_headers_dir=install-headers-cpio
     ;;
-  i[34567]86-*-solaris2*)
-    build_xm_defines="SMALL_ARG_MAX"
-    ;;
   i[34567]86-*-sysv4*) 
     # Intel x86 running system V r4
-    build_xm_defines="SMALL_ARG_MAX"
     build_install_headers_dir=install-headers-cpio
     ;;
   i[34567]86-*-udk*) 


-- 
Alan Modra
IBM OzLabs - Linux Technology Centre