config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux* and powerpc64-*-linux*...

	* config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
	and powerpc64-*-linux* configurations.
	* config/t-dfprules: New file.

From-SVN: r111596

gcc/ChangeLog

 2006-03-01  Ben Elliston  <bje@au.ibm.com>
 
+	* config.gcc: Add t-dfprules to $tmake_file for powerpc-*-linux*
+	and powerpc64-*-linux* configurations.
+	* config/t-dfprules: New file.
+
 	* mklibgcc.in: Add logic to handle $DFP_ENABLE and $DFP_CFLAGS.
 	Compile dfp-bit.c from the source directory using -DWIDTH and
 	$DFP_CFLAGS to control the compilation of that file, rather than

gcc/config.gcc

@@ -1636,7 +1636,7 @@ powerpc64-*-linux*)
 		tm_file="rs6000/secureplt.h ${tm_file}"
 	fi
 	extra_options="${extra_options} rs6000/sysv4.opt rs6000/linux64.opt"
-	tmake_file="rs6000/t-fprules ${tmake_file} rs6000/t-ppccomm rs6000/t-linux64"
+	tmake_file="t-dfprules rs6000/t-fprules ${tmake_file} rs6000/t-ppccomm rs6000/t-linux64"
 	;;
 powerpc64-*-gnu*)
 	tm_file="${cpu_type}/${cpu_type}.h elfos.h svr4.h freebsd-spec.h gnu.h rs6000/sysv4.h rs6000/linux64.h rs6000/gnu.h"
@@ -1734,7 +1734,7 @@ powerpc-*-linux*spe*)
 powerpc-*-linux*)
 	tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h"
 	extra_options="${extra_options} rs6000/sysv4.opt"
-	tmake_file="rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
+	tmake_file="t-dfprules rs6000/t-fprules rs6000/t-ppcos ${tmake_file} rs6000/t-ppccomm"
 	case ${enable_targets}:${cpu_is_64bit} in
 	    *powerpc64* | all:* | *:yes)
 		if test x$cpu_is_64bit = xyes; then

gcc/config/t-dfprules

+# Use DFP_ENABLE to build decimal floating point support routines for
+# all decimal floating point types (32-bit, 64-bit and 128-bit). We
+# use `true' for clarity, but any value will do.
+#
+DFP_ENABLE = true
+
+# DFP_CFLAGS can be used to pass target-specific CFLAGS when compiling
+# dfp-bit.c.  This is useful for overriding the definition of CMPtype
+# and other macros.
+#
+# DFP_CFLAGS = -DFOO=bar