--- dg-cmp-results.sh	2006/05/31 19:22:14	1.18
+++ dg-cmp-results.sh	2006/06/01 17:53:21
@@ -31,6 +31,16 @@ if test $# -ne 3 -o ! -f "$2" -o ! -f "$
     exit 1
 fi
 
+# Command differences for various platforms.
+case `uname -s` in
+Darwin|NetBSD)
+    E=-E	# sed
+    ;;
+*)
+    E=-r	# sed
+    ;;
+esac
+
 # sections are identified by separator lines beginning with '\t\t==='.
 # section 0 identifies run date, target, and host.
 # section 1 and subsequent contain test data for a target variant.
@@ -62,15 +72,15 @@ unset temp
 
 # Copy out the old file's section 0.
 echo "Older log file: $OFILE"
-sed -r -e '/^\t+===/,$d' $OFILE
+sed $E -e '/^[[:space:]]+===/,$d' $OFILE
 
 # Copy out the new file's section 0.
 echo "Newer log file: $NFILE"
-sed -r -e '/^\t+===/,$d' $NFILE
+sed $E -e '/^[[:space:]]+===/,$d' $NFILE
 
 # Create a temporary file from the old file's interesting section.
-sed -r -e "1,/$header/d" \
-  -e '/^\t+===/,$d' \
+sed $E -e "1,/$header/d" \
+  -e '/^[[:space:]]+===/,$d' \
   -e '/^[A-Z]+:/!d' \
   -e 's/\r$//' \
   -e 's/^/O:/' \
@@ -79,8 +89,8 @@ sed -r -e "1,/$header/d" \
   >/tmp/o$$-$OBASE
 
 # Create a temporary file from the new file's interesting section.
-sed -r -e "1,/$header/d" \
-  -e '/^\t+===/,$d' \
+sed $E -e "1,/$header/d" \
+  -e '/^[[:space:]]+===/,$d' \
   -e '/^[A-Z]+:/!d' \
   -e 's/\r$//' \
   -e 's/^/N:/' \
@@ -94,9 +104,9 @@ sed -r -e "1,/$header/d" \
 # If so, we assume that the order is the same in both files.
 IFS=:
 firstread=Y
-sort --merge -s -t : -k 3b /tmp/o$$-$OBASE /tmp/n$$-$NBASE |
+sort -m -s -t : -k 3b /tmp/o$$-$OBASE /tmp/n$$-$NBASE |
 while read -r lineon linestatus linename; do
-    linename=`echo "$linename" |sed -r -e 's/^ *(.*) *$/\1/'`
+    linename=`echo "$linename" |sed $E -e 's/^ *(.*) *$/\1/'`
 
     if test $verbose -ge 4; then
 	case "$linestatus" in
@@ -231,15 +241,15 @@ while read -r lineon linestatus linename
 	    else
 		##echo "$lines" |read -r prevon prevstatus prevname
 		line=`echo "$lines" |head -n 1`
-		prevon=`echo "$line" |sed -r -e 's/\s*(.):([A-Z]+):(.*)$/\1/'`
-		prevstatus=`echo "$line" |sed -r -e 's/\s*(.):([A-Z]+):(.*)$/\2/'`
-		prevname=`echo "$line" |sed -r -e 's/\s*(.):([A-Z]+):(.*)$/\3/'`
+		prevon=`echo "$line" |sed $E -e 's/ *(.):([A-Z]+):(.*)$/\1/'`
+		prevstatus=`echo "$line" |sed $E -e 's/ *(.):([A-Z]+):(.*)$/\2/'`
+		prevname=`echo "$line" |sed $E -e 's/ *(.):([A-Z]+):(.*)$/\3/'`
 
 		if test $verbose -ge 4; then
 		    echo "  debug: pulled a line from the stack"
 		fi
 		#lines=`echo "$lines" |tail -n $numlines`
-		lines=`echo "$lines" |sed -e 1d`
+		lines=`echo "$lines" |sed $E -e 1d`
 	    fi
 	    ;;
 	*)