# HG changeset patch
# User cannam
# Date 1215091737 0
# Node ID e841e2365b486ea07e91b44be0613694ef9c9af5
# Parent  64709b340651ee2478d67b597828a4515e41c00d
* Some work on symbol visibility in the shared object

diff -r 64709b340651 -r e841e2365b48 Makefile
--- a/Makefile	Mon Jun 30 17:00:43 2008 +0000
+++ b/Makefile	Thu Jul 03 13:28:57 2008 +0000
@@ -28,7 +28,7 @@
 
 # Compile flags
 #
-CXXFLAGS	:= $(CXXFLAGS) -O2 -Wall -I. -fPIC 
+CXXFLAGS	:= $(CXXFLAGS) -O2 -Wall -I. -fPIC
 
 # ar, ranlib
 #
@@ -40,8 +40,8 @@
 # because our plugin exposes only a C API so there are no boundary
 # compatibility problems.)
 #
-PLUGIN_LIBS	= $(SDKDIR)/libvamp-sdk.a
-#PLUGIN_LIBS	= $(SDKDIR)/libvamp-sdk.a $(shell g++ -print-file-name=libstdc++.a)
+#PLUGIN_LIBS	= $(SDKDIR)/libvamp-sdk.a
+PLUGIN_LIBS	= $(SDKDIR)/libvamp-sdk.a $(shell g++ -print-file-name=libstdc++.a)
 
 # File extension for a dynamically loadable object
 #
@@ -79,8 +79,8 @@
 
 # Flags required to tell the compiler to create a dynamically loadable object
 #
-DYNAMIC_LDFLAGS		= --static-libgcc -shared -Wl,-Bsymbolic
-PLUGIN_LDFLAGS		= $(DYNAMIC_LDFLAGS)
+DYNAMIC_LDFLAGS		= -static-libgcc -shared -Wl,-Bsymbolic
+PLUGIN_LDFLAGS		= $(DYNAMIC_LDFLAGS) -Wl,--version-script=vamp-plugin.map
 SDK_DYNAMIC_LDFLAGS	= $(DYNAMIC_LDFLAGS) -Wl,-soname=$(INSTALL_SDK_LINK_ABI)
 HOSTSDK_DYNAMIC_LDFLAGS	= $(DYNAMIC_LDFLAGS) -Wl,-soname=$(INSTALL_HOSTSDK_LINK_ABI)
 
@@ -252,3 +252,98 @@
 		    -e "s,%LIBS%,$(INSTALL_SDK_LIBS),g" $(HOSTSDK_LA).in \
 		> $(DESTDIR)$(INSTALL_SDK_LIBS)/$(INSTALL_HOSTSDK_LA)
 
+# DO NOT DELETE
+
+examples/AmplitudeFollower.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+examples/AmplitudeFollower.o: vamp-sdk/RealTime.h
+examples/PercussionOnsetDetector.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+examples/PercussionOnsetDetector.o: vamp-sdk/RealTime.h
+examples/SpectralCentroid.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+examples/SpectralCentroid.o: vamp-sdk/RealTime.h
+examples/ZeroCrossing.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+examples/ZeroCrossing.o: vamp-sdk/RealTime.h
+vamp-sdk/PluginAdapter.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/PluginAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/Plugin.o: vamp-sdk/PluginBase.h vamp-sdk/RealTime.h
+vamp-sdk/PluginHostAdapter.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/PluginHostAdapter.o: vamp-sdk/RealTime.h
+examples/AmplitudeFollower.o: examples/AmplitudeFollower.h vamp-sdk/Plugin.h
+examples/AmplitudeFollower.o: vamp-sdk/PluginBase.h vamp-sdk/RealTime.h
+examples/PercussionOnsetDetector.o: examples/PercussionOnsetDetector.h
+examples/PercussionOnsetDetector.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+examples/PercussionOnsetDetector.o: vamp-sdk/RealTime.h
+examples/plugins.o: vamp/vamp.h vamp-sdk/PluginAdapter.h vamp-sdk/Plugin.h
+examples/plugins.o: vamp-sdk/PluginBase.h vamp-sdk/RealTime.h
+examples/plugins.o: examples/ZeroCrossing.h vamp-sdk/Plugin.h
+examples/plugins.o: examples/SpectralCentroid.h
+examples/plugins.o: examples/PercussionOnsetDetector.h
+examples/plugins.o: examples/AmplitudeFollower.h
+examples/SpectralCentroid.o: examples/SpectralCentroid.h vamp-sdk/Plugin.h
+examples/SpectralCentroid.o: vamp-sdk/PluginBase.h vamp-sdk/RealTime.h
+examples/ZeroCrossing.o: examples/ZeroCrossing.h vamp-sdk/Plugin.h
+examples/ZeroCrossing.o: vamp-sdk/PluginBase.h vamp-sdk/RealTime.h
+host/vamp-simple-host.o: vamp-sdk/PluginHostAdapter.h vamp-sdk/Plugin.h
+host/vamp-simple-host.o: vamp-sdk/PluginBase.h vamp-sdk/RealTime.h
+host/vamp-simple-host.o: vamp-sdk/hostext/PluginChannelAdapter.h
+host/vamp-simple-host.o: vamp-sdk/hostext/PluginWrapper.h
+host/vamp-simple-host.o: vamp-sdk/hostext/PluginInputDomainAdapter.h
+host/vamp-simple-host.o: vamp-sdk/hostext/PluginLoader.h vamp/vamp.h
+host/vamp-simple-host.o: host/system.h
+vamp-sdk/PluginAdapter.o: vamp-sdk/PluginAdapter.h vamp/vamp.h
+vamp-sdk/PluginAdapter.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/PluginAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/PluginHostAdapter.o: vamp-sdk/PluginHostAdapter.h vamp/vamp.h
+vamp-sdk/PluginHostAdapter.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/PluginHostAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/RealTime.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/Plugin.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/Plugin.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/Plugin.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginWrapper.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginWrapper.o: vamp-sdk/RealTime.h
+rdf/generator/template-generator.o: vamp-sdk/PluginHostAdapter.h
+rdf/generator/template-generator.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+rdf/generator/template-generator.o: vamp-sdk/RealTime.h
+rdf/generator/template-generator.o: vamp-sdk/hostext/PluginChannelAdapter.h
+rdf/generator/template-generator.o: vamp-sdk/hostext/PluginWrapper.h
+rdf/generator/template-generator.o: vamp-sdk/hostext/PluginInputDomainAdapter.h
+rdf/generator/template-generator.o: vamp-sdk/hostext/PluginLoader.h
+rdf/generator/template-generator.o: vamp/vamp.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/hostext/PluginBufferingAdapter.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/Plugin.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginBufferingAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/hostext/PluginChannelAdapter.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/Plugin.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginChannelAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/hostext/PluginInputDomainAdapter.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/Plugin.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginInputDomainAdapter.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/PluginHostAdapter.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/RealTime.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/hostext/PluginLoader.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/hostext/PluginInputDomainAdapter.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/hostext/PluginChannelAdapter.h
+vamp-sdk/hostext/PluginLoader.o: vamp-sdk/hostext/PluginBufferingAdapter.h
+vamp-sdk/hostext/PluginWrapper.o: vamp-sdk/hostext/PluginWrapper.h
+vamp-sdk/hostext/PluginWrapper.o: vamp-sdk/Plugin.h vamp-sdk/PluginBase.h
+vamp-sdk/hostext/PluginWrapper.o: vamp-sdk/RealTime.h
diff -r 64709b340651 -r e841e2365b48 vamp-plugin.map
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vamp-plugin.map	Thu Jul 03 13:28:57 2008 +0000
@@ -0,0 +1,4 @@
+{
+	global: vampGetPluginDescriptor;
+	local: *;
+};
diff -r 64709b340651 -r e841e2365b48 vamp/vamp.h
--- a/vamp/vamp.h	Mon Jun 30 17:00:43 2008 +0000
+++ b/vamp/vamp.h	Thu Jul 03 13:28:57 2008 +0000
@@ -312,6 +312,15 @@
 
 } VampPluginDescriptor;
 
+
+#ifdef __GNUC__
+#pragma GCC visibility push(default)
+#endif
+#ifdef __MSVC__
+__declspec(dllexport)
+#endif
+
+
 /** Get the descriptor for a given plugin index in this library.
     Return NULL if the index is outside the range of valid indices for
     this plugin library.
@@ -324,10 +333,20 @@
     field for its actual compatibility level, the host should be able
     to do the right thing with it: use it if possible, discard it
     otherwise.
+
+    This is the only symbol that a Vamp plugin actually needs to
+    export from its shared object; all others can be hidden.  See the
+    accompanying documentation for notes on how to achieve this with
+    certain compilers.
 */
 const VampPluginDescriptor *vampGetPluginDescriptor
     (unsigned int hostApiVersion, unsigned int index);
 
+
+#ifdef __GNUC__
+#pragma GCC visibility pop
+#endif
+
 /** Function pointer type for vampGetPluginDescriptor. */
 typedef const VampPluginDescriptor *(*VampGetPluginDescriptorFunction)
     (unsigned int, unsigned int);