Fix multilib build of libgcc on Linux/sparc.

	* configure.ac: Set host_address on sparc too.
	* configure: Regenerate.
	* config.host: Add sparc/t-linux64 and sparc/t-softmul conditionally
	based upon host_address.
	* config/sparc/t-linux64: Set CRTSTUFF_T_CFLAGS unconditionally.

From-SVN: r180818

libgcc/ChangeLog

+2011-11-02  David S. Miller  <davem@davemloft.net>
+
+	* configure.ac: Set host_address on sparc too.
+	* configure: Regenerate.
+	* config.host: Add sparc/t-linux64 and sparc/t-softmul conditionally
+	based upon host_address.
+	* config/sparc/t-linux64: Set CRTSTUFF_T_CFLAGS unconditionally.
+
 2011-11-02  Jason Merrill  <jason@redhat.com>
 
 	* config/rs6000/t-ppccomm: Add missing \.

libgcc/config.host

@@ -1008,7 +1008,10 @@ sparc-*-elf*)
 	extra_parts="$extra_parts crti.o crtn.o crtfastmath.o"
 	;;
 sparc-*-linux*)		# SPARC's running GNU/Linux, libc6
-	tmake_file="${tmake_file} t-crtfm sparc/t-linux64"
+	tmake_file="${tmake_file} t-crtfm"
+	if test "${host_address}" = 64; then
+		tmake_file="$tmake_file sparc/t-linux64"
+	fi
 	case ${host} in
 	*-leon*)
 		tmake_file="${tmake_file} t-fdpbit"
@@ -1021,7 +1024,9 @@ sparc-*-linux*)		# SPARC's running GNU/Linux, libc6
 	*-leon[3-9]*)
 		;;
 	*)
-	  	tmake_file="$tmake_file sparc/t-softmul"
+		if test "${host_address}" = 32; then
+			tmake_file="$tmake_file sparc/t-softmul"
+		fi
 	  	;;
 	esac
 	extra_parts="$extra_parts crtfastmath.o"
@@ -1052,7 +1057,13 @@ sparc64-*-freebsd*|ultrasparc-*-freebsd*)
 	;;
 sparc64-*-linux*)		# 64-bit SPARC's running GNU/Linux
 	extra_parts="$extra_parts crtfastmath.o"
-	tmake_file="${tmake_file} t-crtfm sparc/t-linux sparc/t-linux64"
+	tmake_file="${tmake_file} t-crtfm sparc/t-linux"
+	if test "${host_address}" = 64; then
+		tmake_file="${tmake_file} sparc/t-linux64"
+	fi
+	if test "${host_address}" = 32; then
+		tmake_file="${tmake_file} sparc/t-softmul"
+	fi
 	md_unwind_header=sparc/linux-unwind.h
 	;;
 sparc64-*-netbsd*)

libgcc/config/sparc/t-linux64

-CRTSTUFF_T_CFLAGS = `if test x$$($(CC) -print-multi-os-directory) \
-			= x../lib64; then echo -mcmodel=medany; fi`
+CRTSTUFF_T_CFLAGS = -mcmodel=medany

libgcc/configure

@@ -4609,11 +4609,12 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libgcc_cv_cfi" >&5
 $as_echo "$libgcc_cv_cfi" >&6; }
 
-# Check 32bit or 64bit for x86.
+# Check 32bit or 64bit for x86 and sparc.
 case ${host} in
-i?86*-*-* | x86_64*-*-*)
+i?86*-*-* | x86_64*-*-* | sparc*-*-*)
   cat > conftest.c <<EOF
-#ifdef __x86_64__
+#if defined(__x86_64__) || \
+    (defined(__sparc__) && defined(__arch64__))
 host_address=64
 #else
 host_address=32

libgcc/configure.ac

@@ -255,11 +255,12 @@ AC_CACHE_CHECK([whether assembler supports CFI directives], [libgcc_cv_cfi],
   [libgcc_cv_cfi=yes],
   [libgcc_cv_cfi=no])])
 
-# Check 32bit or 64bit for x86.
+# Check 32bit or 64bit for x86 and sparc.
 case ${host} in
-i?86*-*-* | x86_64*-*-*)
+i?86*-*-* | x86_64*-*-* | sparc*-*-*)
   cat > conftest.c <<EOF
-#ifdef __x86_64__
+#if defined(__x86_64__) || \
+    (defined(__sparc__) && defined(__arch64__))
 host_address=64
 #else
 host_address=32