Started to introduce the work done by the ACE Configuration

	Project into the official ACE distribution.

1 files changed, 192 insertions, 0 deletions

diff --git a/ace-diff-config.in b/ace-diff-config.in
new file mode 100644
index 00000000000..3ac2c46f335
--- /dev/null
+++ b/ace-diff-config.in
@@ -0,0 +1,192 @@
+#!/bin/sh
+
+# -------------------------------------------------------------------------
+#       $Id$
+# 
+#       ace-diff-config script - use to compare ACE macro definitions in
+#                                ACE configuration headers
+# 
+# -------------------------------------------------------------------------
+
+#  Copyright (C) 1998  Ossama Othman
+#
+#  All Rights Reserved
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the current ACE distribution terms.
+# 
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This is a script that can be used to determine differences between two ACE
+# configuration headers.  The file `ACE.ifnames' contains a list of all of the
+# identifiers used in ACE's preprocessor conditionals (generated with
+# GNU Autoconf's "ifnames" program).  The script will go through the list in
+# ACE.ifnames and determine if the given macro was defined in only one of the
+# two headers being headers being compared.
+#
+# The C++ pre-processor is used when comparing so that macros from "#included"
+# headers will also be checked.
+
+set -e
+
+INCLUDES="@top_srcdir@"
+CXXCPP="@CXXCPP@ -I. -I$INCLUDES"
+MACRO_LIST_FILE="ACE.ifnames"
+RESULTS_FILE=ace-diff-config.results
+TEST_FILE="ace-diff-config.test.cpp"
+
+usage()
+{
+    cat <<EOF
+Usage: ace-diff-config HEADER1 HEADER2
+       e.g.:  ./ace-diff-config ace/config-linux-lxpthreads.h ace/config.h
+
+EOF
+
+    exit $1
+}
+
+if test $# -eq 0; then
+    usage 1
+fi
+
+if test -f $RESULTS_FILE; then
+  mv $RESULTS_FILE $RESULTS_FILE.bak
+fi
+
+if test -f $1; then
+  :
+else
+  echo "error: $1 does not exist"
+  exit 1
+fi
+
+if test -f $2; then
+  :
+else
+  echo "error: $2 does not exist"
+  exit 1
+fi
+
+# Process the first header
+echo ""
+echo -n "Processing $1 "
+
+echo "Macros that are defined in $1" >> $RESULTS_FILE
+echo "but not in $2" >> $RESULTS_FILE
+echo "-------------------------------------------------------" >> $RESULTS_FILE
+
+list=`cat $MACRO_LIST_FILE`; for p in $list; do
+  # Provide some output
+  echo -n "."
+  cat > $TEST_FILE <<EOF
+
+#include "$1"
+
+#ifdef $p
+DEFINED
+#endif
+
+EOF
+
+  if (eval "$CXXCPP $TEST_FILE") |
+     egrep "DEFINED" >/dev/null; then
+    defined=true
+  else
+    defined=false
+  fi
+
+  # now check if it is defined in header #2
+  if test $defined = true; then
+    cat > $TEST_FILE <<EOF
+
+#include "$2"
+
+#ifdef $p
+DEFINED
+#endif
+
+EOF
+
+    if (eval "$CXXCPP $TEST_FILE") |
+       egrep "DEFINED" >/dev/null; then
+      defined=true
+    else
+      defined=false
+    fi
+
+    # if "defined" is false then, the first header is the only header that
+    # defines the macro.
+    if test $defined = false; then
+      echo $p >> $RESULTS_FILE
+    fi
+  fi
+
+done
+
+
+# Process the second header
+echo ""
+echo -n "Processing $2 "
+
+echo "" >> $RESULTS_FILE
+echo "Macros that are defined in $2" >> $RESULTS_FILE
+echo "but not in $1" >> $RESULTS_FILE
+echo "-------------------------------------------------------" >> $RESULTS_FILE
+
+list=`cat $MACRO_LIST_FILE`; for p in $list; do
+  # Provide some output
+  echo -n "."
+
+  cat > $TEST_FILE <<EOF
+
+#include "$2"
+
+#ifdef $p
+DEFINED
+#endif
+
+EOF
+
+  if (eval "$CXXCPP $TEST_FILE") |
+     egrep "DEFINED" >/dev/null; then
+    defined=true
+  else
+    defined=false
+  fi
+
+  # now check if it is defined in header #1
+  if test $defined = true; then
+    cat > $TEST_FILE <<EOF
+
+#include "$1"
+
+#ifdef $p
+DEFINED
+#endif
+
+EOF
+
+    if (eval "$CXXCPP $TEST_FILE") |
+       egrep "DEFINED" >/dev/null; then
+      defined=true
+    else
+      defined=false
+    fi
+
+    # if "defined" is false then, the second header is the only header that
+    # defines the macro.
+    if test $defined = false; then
+      echo $p >> $RESULTS_FILE
+    fi
+  fi
+
+done
+
+rm $TEST_FILE
+
+echo ""
+echo "Results are in $RESULTS_FILE."
+echo ""