Support for building GDB with DJGPP, and running the test suite on

it:
	* config/djgpp/djconfig.sh: New file.
	* config/djgpp/config.sed: New file.
	* config/djgpp/README: New file.
	* config/djgpp/fnchange.lst: New file.
	* config/djgpp/djcheck.sh: New file.

gdb/config/djgpp/djcheck.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+# A shell script to run the test suite on the DJGPP version of GDB.
+
+ORIGDIR=`pwd`
+GDB=${ORIGDIR}/../gdb.exe
+SUBDIRS=`find $ORIGDIR -type d ! -ipath $ORIGDIR`
+
+for d in $SUBDIRS
+do
+  cd $d
+  echo "Running tests in $d..."
+  for f in *.out
+  do
+    test -f $f || break
+    base=`basename $f .out`
+    if test "${base}" = "dbx" ; then
+	options=-dbx
+    else
+	options=
+    fi
+    $GDB ${options} < ${base}.in 2>&1 \
+      | sed -e '/^GNU gdb /s/ [.0-9][.0-9]*//' \
+            -e '/Starting program: /s|[A-z]:/.*/||' \
+            -e '/main (.*argv=/s/\(argv\|envp\)=0x[0-9a-f][0-9a-f]*/\1=XYZ/g' \
+      > ${base}.tst
+    if diff --binary -u ${base}.out ${base}.tst ; then
+      rm -f ${base}.tst
+    fi
+  done
+done
+