Silence abi_check

Author: stephen-webb

src/main/cpp/multiprocessrollingfileappender.cpp

@@ -428,7 +428,7 @@ void MultiprocessRollingFileAppender::subAppend(const LoggingEventPtr& event, Po
  @param os output stream, may not be null.
  @return new writer.
  */
-WriterPtr MultiprocessRollingFileAppender::createWriter(const OutputStreamPtr& os)
+WriterPtr MultiprocessRollingFileAppender::createWriter(LOG4CXX_16_CONST OutputStreamPtr& os)
 {
 	auto fos = LOG4CXX_NS::cast<FileOutputStream>(os);
 	if( fos )

src/main/cpp/rollingfileappender.cpp

@@ -357,7 +357,7 @@ bool RollingFileAppender::rolloverInternal(Pool& p)
 							setFileInternal(rollover1->getActiveFileName());
 							// Call activateOptions to create any intermediate directories(if required)
 							FileAppender::activateOptionsInternal(p);
-							auto os = std::make_shared<FileOutputStream>
+							OutputStreamPtr os = std::make_shared<FileOutputStream>
 									( rollover1->getActiveFileName()
 									, rollover1->getAppend()
 									);
@@ -570,7 +570,7 @@ class CountingOutputStream : public OutputStream
  @param os output stream, may not be null.
  @return new writer.
  */
-WriterPtr RollingFileAppender::createWriter(const OutputStreamPtr& os)
+WriterPtr RollingFileAppender::createWriter(LOG4CXX_16_CONST OutputStreamPtr& os)
 {
 	OutputStreamPtr cos = std::make_shared<CountingOutputStream>(os, this);
 	return FileAppender::createWriter(cos);

src/main/cpp/writerappender.cpp

@@ -190,7 +190,7 @@ void WriterAppender::closeWriter()
    <code>encoding</code> property.  If the encoding value is
    specified incorrectly the writer will be opened using the default
    system encoding (an error message will be printed to the loglog.  */
-WriterPtr WriterAppender::createWriter(const OutputStreamPtr& os)
+WriterPtr WriterAppender::createWriter(LOG4CXX_16_CONST OutputStreamPtr& os)
 {
 
 	LogString enc(getEncoding());

src/main/include/log4cxx/rolling/multiprocessrollingfileappender.h

@@ -91,7 +91,7 @@ class LOG4CXX_EXPORT MultiprocessRollingFileAppender : public RollingFileAppende
 		 @param os output stream, may not be null.
 		 @return new writer.
 		 */
-		helpers::WriterPtr createWriter(const helpers::OutputStreamPtr& os) override;
+		helpers::WriterPtr createWriter(LOG4CXX_16_CONST helpers::OutputStreamPtr& os) override;
 
 	private:
 		/**

src/main/include/log4cxx/rolling/rollingfileappender.h

@@ -220,7 +220,7 @@ class LOG4CXX_EXPORT RollingFileAppender : public FileAppender
 		 @param os output stream, may not be null.
 		 @return new writer.
 		 */
-		helpers::WriterPtr createWriter(const helpers::OutputStreamPtr& os) override;
+		helpers::WriterPtr createWriter(LOG4CXX_16_CONST helpers::OutputStreamPtr& os) override;
 
 	public:
 		/**

src/main/include/log4cxx/writerappender.h

@@ -22,6 +22,12 @@
 #include <log4cxx/helpers/outputstreamwriter.h>
 #include <atomic>
 
+#if 15 < LOG4CXX_ABI_VERSION
+#define LOG4CXX_16_CONST const
+#else
+#define LOG4CXX_16_CONST 
+#endif
+
 namespace LOG4CXX_NS
 {
 
@@ -126,7 +132,7 @@ class LOG4CXX_EXPORT WriterAppender : public AppenderSkeleton
 		    <code>encoding</code> property.  If the encoding value is
 		    specified incorrectly the writer will be opened using the default
 		    system encoding (an error message will be printed to the loglog.  */
-		virtual helpers::WriterPtr createWriter(const helpers::OutputStreamPtr& os);
+		virtual helpers::WriterPtr createWriter(LOG4CXX_16_CONST helpers::OutputStreamPtr& os);
 
 	public:
 		/**