Fix a problem not letting plugins work when the client is built on RedHat and derived systems (Fedora is affected too). Completely avoid apr_dso_load() on Linux (they modified it to open libraries with RTLD_NOW | RTLD_GLOBAL | RTLD_DEEPBIND). Get a standard DSO handle with RTLD_NOW | RTLD_GLOBAL flags instead, and convert it to a valid APR one by using apr_os_handle_put().

indra/llimage/llimagej2c.cpp

@@ -28,6 +28,11 @@
  * COMPLETENESS OR PERFORMANCE.
  * $/LicenseInfo$
  */
+#if LL_LINUX
+#include <dlfcn.h>
+#include <apr_portable.h>
+#endif
+
 #include "linden_common.h"
 
 #include "apr_pools.h"
@@ -85,9 +90,15 @@ void LLImageJ2C::openDSO()
 	j2cimpl_dso_memory_pool.create();
 
 	//attempt to load the shared library
+#if LL_LINUX
+    void *dso_handle = dlopen(dso_path.c_str(), RTLD_NOW | RTLD_GLOBAL);
+    rv = (!dso_handle)?APR_EDSOOPEN:apr_os_dso_handle_put(&j2cimpl_dso_handle,
+            dso_handle, j2cimpl_dso_memory_pool());
+#else
 	rv = apr_dso_load(&j2cimpl_dso_handle,
 					  dso_path.c_str(),
 					  j2cimpl_dso_memory_pool());
+#endif
 
 	//now, check for success
 	if ( rv == APR_SUCCESS )

indra/llplugin/CMakeLists.txt

@@ -65,6 +65,9 @@ endif (NOT WORD_SIZE EQUAL 32)
 list(APPEND llplugin_SOURCE_FILES ${llplugin_HEADER_FILES})
 
 add_library (llplugin ${llplugin_SOURCE_FILES})
+if(LINUX)
+    target_link_libraries (llplugin rt dl)
+endif(LINUX)
 
 add_dependencies(llplugin prepare)
 

indra/llplugin/llplugininstance.cpp

@@ -32,6 +32,10 @@
  * 
  * @endcond
  */
+#if LL_LINUX
+#include <dlfcn.h>
+#include <apr_portable.h>
+#endif
 
 #include "linden_common.h"
 
@@ -83,16 +87,25 @@ int LLPluginInstance::load(std::string &plugin_file)
 {
 	pluginInitFunction init_function = NULL;
 	
+#if LL_LINUX
+    void *dso_handle = dlopen(plugin_file.c_str(), RTLD_NOW | RTLD_GLOBAL);
+    int result = (!dso_handle)?APR_EDSOOPEN:apr_os_dso_handle_put(&mDSOHandle,
+            dso_handle, AIAPRRootPool::get()());
+#else
 	int result = apr_dso_load(&mDSOHandle,
 					  plugin_file.c_str(),
 					  AIAPRRootPool::get()());
+#endif
 	if(result != APR_SUCCESS)
 	{
 		char buf[1024];
 		apr_dso_error(mDSOHandle, buf, sizeof(buf));
 
+#if LL_LINUX
+		LL_WARNS("Plugin") << "plugin load " << plugin_file << " failed with error " << result << " , additional info string: " << buf << LL_ENDL;
+#else
 		LL_WARNS("Plugin") << "apr_dso_load of " << plugin_file << " failed with error " << result << " , additional info string: " << buf << LL_ENDL;
-		
+#endif
 	}
 	
 	if(result == APR_SUCCESS)

indra/newview/llappviewerlinux_api_dbus.cpp

@@ -32,6 +32,9 @@
 
 #if LL_DBUS_ENABLED
 
+#include <dlfcn.h>
+#include <apr_portable.h>
+
 #include "linden_common.h"
 
 extern "C" {
@@ -71,9 +74,11 @@ bool grab_dbus_syms(std::string dbus_dso_name)
 	//attempt to load the shared library
 	apr_pool_create(&sSymDBUSDSOMemoryPool, NULL);
   
-	if ( APR_SUCCESS == (rv = apr_dso_load(&sSymDBUSDSOHandle,
+    void *dso_handle = dlopen(dbus_dso_name.c_str(), RTLD_NOW | RTLD_GLOBAL);
-					       dbus_dso_name.c_str(),
+    rv = (!dso_handle)?APR_EDSOOPEN:apr_os_dso_handle_put(&sSymDBUSDSOHandle,
-					       sSymDBUSDSOMemoryPool) ))
+            dso_handle, sSymDBUSDSOMemoryPool);
+
+	if ( APR_SUCCESS == rv )
 	{
 		INFOMSG("Found DSO: %s", dbus_dso_name.c_str());
 

indra/plugins/webkit/linux_volume_catcher.cpp

@@ -52,6 +52,8 @@ extern "C" {
 
 #include "aiaprpool.h"
 #include "apr_dso.h"
+#include <dlfcn.h>
+#include <apr_portable.h>
 }
 
 ////////////////////////////////////////////////////
@@ -87,9 +89,10 @@ bool grab_pa_syms(std::string pulse_dso_name)
 	//attempt to load the shared library
 	sSymPADSOMemoryPool.create();
   
-	if ( APR_SUCCESS == (rv = apr_dso_load(&sSymPADSOHandle,
+    void *dso_handle = dlopen(pulse_dso_name.c_str(), RTLD_NOW | RTLD_GLOBAL);
-					       pulse_dso_name.c_str(),
+    rv = (!dso_handle)?APR_EDSOOPEN:apr_os_dso_handle_put(&sSymPADSOHandle,
-					       sSymPADSOMemoryPool()) ))
+            dso_handle, sSymPADSOMemoryPool());
+	if ( APR_SUCCESS == rv )
 	{
 		INFOMSG("Found DSO: %s", pulse_dso_name.c_str());