Fixed the IDE's for Xcode3, Xcode3.1, and VisualC (last one untested).

Added some code for verbose plugin manager output. This is what you should get when loading "cube" and then calling the regular "print" function.

Fl_Plugin: creating a plugin, class "fltk:device", name "opengl.device.fltk.org"
Fl_Plugin: creating a plugin manager for class "fltk:device"
Fl_Plugin: adding plugin named "opengl.device.fltk.org" at 0x0x175314
Fl_Plugin: deleting a plugin manager
Fl_Plugin: creating a plugin manager for class "fltk:device"
Fl_Plugin: returning plugin named "opengl.device.fltk.org": 0x0x175314
Fl_Plugin: deleting a plugin manager
Fl_Plugin: deleting a plugin



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7291 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

9 files changed, 76 insertions, 18 deletions

diff --git a/fltk.db b/fltk.db
index a49b7890e..4a744cae1 100644
--- a/fltk.db
+++ b/fltk.db
@@ -864,10 +864,10 @@ xcBuildFileID:35A5A00A20671E8DCB8F867F
 refUUID:570984D4-07B2-4C30-A350-C5EF02ADC173
 xcBuildFileID:22BEC71AF42AC078B015549D
 
-[./targets/libs/3B8A19C6-88D5-4025-BF9C-8FE5EA7D0AE0/sources/1EF53AC8-34FD-4839-A91D-3426F52C5774]
+[./targets/libs/3B8A19C6-88D5-4025-BF9C-8FE5EA7D0AE0/sources/E5ECB50B-091B-4DBC-A74E-90542FD34D01]
 
-refUUID:76AB84E7-BFBC-4B13-9185-07BD9BD02B0B
-xcBuildFileID:2252F8C2D072099F09E9FB74
+refUUID:94DB63C3-5F21-4E11-9EA1-52F8345C146F
+xcBuildFileID:9D9AAF1AE62FE9C59F975DDD
 
 [./targets/libs/3B8A19C6-88D5-4025-BF9C-8FE5EA7D0AE0/externals]
 
@@ -7683,16 +7683,16 @@ xcFileID:D7C5E6F387071E93D1451DF0
 pathAndName:src/ps_image.cxx
 xcFileID:E4F1420C3912A01426C1DF4D
 
-[./files/76AB84E7-BFBC-4B13-9185-07BD9BD02B0B]
-
-pathAndName:src/Fl_Gl_Printer.cxx
-xcFileID:20DB1B86BA838A41209BAA59
-
 [./files/6387F09C-7D26-4B09-8C5F-892E912A4987]
 
 pathAndName:/System/Library/Frameworks/AudioToolbox.framework
 xcFileID:23F7BCB45F5B0545BD1884A1
 
+[./files/94DB63C3-5F21-4E11-9EA1-52F8345C146F]
+
+pathAndName:src/Fl_Gl_Device_Plugin.cxx
+xcFileID:5D188953C0E0216E287719DA
+
 [./ide]
 
 
diff --git a/ide/VisualC6/fltk.dsp b/ide/VisualC6/fltk.dsp
index 2c70ab1fa..87b670f6e 100644
--- a/ide/VisualC6/fltk.dsp
+++ b/ide/VisualC6/fltk.dsp
@@ -665,5 +665,17 @@ SOURCE=..\..\src\xutf8\is_right2left.c
 

 SOURCE=..\..\src\xutf8\is_spacing.c

 # End Source File

+# Begin Source File

+

+SOURCE=..\..\src\Fl_Device.cxx

+# End Source File

+# Begin Source File

+

+SOURCE=..\..\src\Fl_Printer.cxx

+# End Source File

+# Begin Source File

+

+SOURCE=..\..\src\ps_image.cxx

+# End Source File

 # End Target

 # End Project

diff --git a/ide/VisualC6/fltkdll.dsp b/ide/VisualC6/fltkdll.dsp
index 1fdd368ba..9d1d3b099 100644
--- a/ide/VisualC6/fltkdll.dsp
+++ b/ide/VisualC6/fltkdll.dsp
@@ -673,5 +673,17 @@ SOURCE=..\..\src\xutf8\is_right2left.c
 

 SOURCE=..\..\src\xutf8\is_spacing.c

 # End Source File

+# Begin Source File

+

+SOURCE=..\..\src\Fl_Device.cxx

+# End Source File

+# Begin Source File

+

+SOURCE=..\..\src\Fl_Printer.cxx

+# End Source File

+# Begin Source File

+

+SOURCE=..\..\src\ps_image.cxx

+# End Source File

 # End Target

 # End Project

diff --git a/ide/VisualC6/fltkgl.dsp b/ide/VisualC6/fltkgl.dsp
index 77e5fedbe..125a7200f 100644
--- a/ide/VisualC6/fltkgl.dsp
+++ b/ide/VisualC6/fltkgl.dsp
@@ -121,5 +121,9 @@ SOURCE=..\..\src\glut_compatability.cxx
 

 SOURCE=..\..\src\glut_font.cxx

 # End Source File

+# Begin Source File

+

+SOURCE=..\..\src\Fl_Gl_Device_Plugin.cxx

+# End Source File

 # End Target

 # End Project

diff --git a/ide/VisualC6/fltkgldll.dsp b/ide/VisualC6/fltkgldll.dsp
index 5b94a57e0..70ce28835 100644
--- a/ide/VisualC6/fltkgldll.dsp
+++ b/ide/VisualC6/fltkgldll.dsp
@@ -129,5 +129,9 @@ SOURCE=..\..\src\glut_compatability.cxx
 

 SOURCE=..\..\src\glut_font.cxx

 # End Source File

+# Begin Source File

+

+SOURCE=..\..\src\Fl_Gl_Device_Plugin.cxx

+# End Source File

 # End Target

 # End Project

diff --git a/ide/Xcode3.1/FLTK.xcodeproj/project.pbxproj b/ide/Xcode3.1/FLTK.xcodeproj/project.pbxproj
index 0d7535ab1..be93c2f23 100644
--- a/ide/Xcode3.1/FLTK.xcodeproj/project.pbxproj
+++ b/ide/Xcode3.1/FLTK.xcodeproj/project.pbxproj
@@ -338,7 +338,6 @@
 		C9A3EE300DD6485F00486E4F /* fltk_forms.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C9A3EC6E0DD6397400486E4F /* fltk_forms.framework */; };
 		C9A58206114D7B6900BEFDBE /* Fl_Device.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A58202114D7B6900BEFDBE /* Fl_Device.cxx */; };
 		C9A58208114D7B6900BEFDBE /* Fl_Printer.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A58204114D7B6900BEFDBE /* Fl_Printer.cxx */; };
-		C9A5820F114D7D7400BEFDBE /* Fl_Gl_Printer.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A58203114D7B6900BEFDBE /* Fl_Gl_Printer.cxx */; };
 		C9A5821D114D7E7800BEFDBE /* ps_image.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A5821C114D7E7800BEFDBE /* ps_image.cxx */; };
 		C9A582AE114D83AA00BEFDBE /* ide_maketools.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A582A9114D83AA00BEFDBE /* ide_maketools.cxx */; };
 		C9A582AF114D83AA00BEFDBE /* ide_support_ui.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A582AA114D83AA00BEFDBE /* ide_support_ui.cxx */; };
@@ -401,6 +400,7 @@
 		C9C873AB0DD7779500A9793F /* fltk_images.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C9A3EC790DD6398C00486E4F /* fltk_images.framework */; };
 		C9C873AC0DD7779600A9793F /* fltk_jpeg.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C9A3EC9A0DD639E600486E4F /* fltk_jpeg.framework */; };
 		C9C873AD0DD7779700A9793F /* fltk_png.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = C9A3EC8E0DD639CE00486E4F /* fltk_png.framework */; };
+		C9DC05581151777A00F3BA04 /* Fl_Gl_Device_Plugin.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9DC05571151777A00F3BA04 /* Fl_Gl_Device_Plugin.cxx */; };
 		C9DD574C0DD780DA00A896B4 /* fl_images_core.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A3EB0F0DD634CC00486E4F /* fl_images_core.cxx */; };
 		C9DD574D0DD780E200A896B4 /* Fl_BMP_Image.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A3EB8A0DD634CC00486E4F /* Fl_BMP_Image.cxx */; };
 		C9DD574E0DD780FB00A896B4 /* Fl_File_Icon2.cxx in Sources */ = {isa = PBXBuildFile; fileRef = C9A3EAE00DD634CC00486E4F /* Fl_File_Icon2.cxx */; };
@@ -3141,7 +3141,6 @@
 		C9A3EE780DD64AE700486E4F /* config.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = config.h; sourceTree = "<group>"; };
 		C9A3EE790DD64B0200486E4F /* TODO */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = TODO; sourceTree = "<group>"; };
 		C9A58202114D7B6900BEFDBE /* Fl_Device.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Device.cxx; path = ../../src/Fl_Device.cxx; sourceTree = SOURCE_ROOT; };
-		C9A58203114D7B6900BEFDBE /* Fl_Gl_Printer.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Gl_Printer.cxx; path = ../../src/Fl_Gl_Printer.cxx; sourceTree = SOURCE_ROOT; };
 		C9A58204114D7B6900BEFDBE /* Fl_Printer.cxx */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.objcpp; fileEncoding = 4; name = Fl_Printer.cxx; path = ../../src/Fl_Printer.cxx; sourceTree = SOURCE_ROOT; };
 		C9A5821C114D7E7800BEFDBE /* ps_image.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = ps_image.cxx; path = ../../src/ps_image.cxx; sourceTree = SOURCE_ROOT; };
 		C9A582A9114D83AA00BEFDBE /* ide_maketools.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = ide_maketools.cxx; path = ../../fluid/ide_maketools.cxx; sourceTree = SOURCE_ROOT; };
@@ -3190,6 +3189,7 @@
 		C9C873900DD7777A00A9793F /* Fl_Group_Type.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Group_Type.cxx; path = ../../fluid/Fl_Group_Type.cxx; sourceTree = SOURCE_ROOT; };
 		C9C873910DD7777A00A9793F /* about_panel.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = about_panel.cxx; path = ../../fluid/about_panel.cxx; sourceTree = SOURCE_ROOT; };
 		C9C873920DD7777A00A9793F /* widget_panel.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = widget_panel.cxx; path = ../../fluid/widget_panel.cxx; sourceTree = SOURCE_ROOT; };
+		C9DC05571151777A00F3BA04 /* Fl_Gl_Device_Plugin.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Gl_Device_Plugin.cxx; path = ../../src/Fl_Gl_Device_Plugin.cxx; sourceTree = SOURCE_ROOT; };
 		C9DD577E0DD7825C00A896B4 /* jidctflt.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = jidctflt.c; path = ../../jpeg/jidctflt.c; sourceTree = SOURCE_ROOT; };
 		C9DD577F0DD7825C00A896B4 /* jfdctint.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = jfdctint.c; path = ../../jpeg/jfdctint.c; sourceTree = SOURCE_ROOT; };
 		C9DD57800DD7825C00A896B4 /* jcmarker.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = jcmarker.c; path = ../../jpeg/jcmarker.c; sourceTree = SOURCE_ROOT; };
@@ -4091,9 +4091,9 @@
 		C9A3E9590DD6338B00486E4F /* Library Sources */ = {
 			isa = PBXGroup;
 			children = (
+				C9DC05571151777A00F3BA04 /* Fl_Gl_Device_Plugin.cxx */,
 				C9A5821C114D7E7800BEFDBE /* ps_image.cxx */,
 				C9A58202114D7B6900BEFDBE /* Fl_Device.cxx */,
-				C9A58203114D7B6900BEFDBE /* Fl_Gl_Printer.cxx */,
 				C9A58204114D7B6900BEFDBE /* Fl_Printer.cxx */,
 				C99E1E980E7861E600AECCF6 /* case.c */,
 				C9A3EB0D0DD634CC00486E4F /* cmap.cxx */,
@@ -7321,7 +7321,7 @@
 				C9C8720B0DD7750100A9793F /* glut_font.cxx in Sources */,
 				C9C8720C0DD7750600A9793F /* freeglut_stroke_mono_roman.cxx in Sources */,
 				C9C8720D0DD7750900A9793F /* glut_compatability.cxx in Sources */,
-				C9A5820F114D7D7400BEFDBE /* Fl_Gl_Printer.cxx in Sources */,
+				C9DC05581151777A00F3BA04 /* Fl_Gl_Device_Plugin.cxx in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/ide/Xcode3/FLTK.xcodeproj/project.pbxproj b/ide/Xcode3/FLTK.xcodeproj/project.pbxproj
index 6057d72ec..4ccb936e8 100644
--- a/ide/Xcode3/FLTK.xcodeproj/project.pbxproj
+++ b/ide/Xcode3/FLTK.xcodeproj/project.pbxproj
@@ -83,7 +83,6 @@
 		20AF0361223BCDD76EDD61C9 /* fltk.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = F459EEE32AC6EE0087583065 /* fltk.framework */; };
 		2106BAFFE8CB7D98E4FB5031 /* Fl_Menu_add.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 307DE3A9F828C1B72F13A931 /* Fl_Menu_add.cxx */; };
 		223315BC662710BF0BB7A495 /* Fl_Browser_load.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 44859B2B09D7079C93466BB9 /* Fl_Browser_load.cxx */; };
-		2252F8C2D072099F09E9FB74 /* Fl_Gl_Printer.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 20DB1B86BA838A41209BAA59 /* Fl_Gl_Printer.cxx */; };
 		226F26AEF4131F84B45FCFDE /* Fl_Browser_.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 1DEF1B17DDFD881A007E5EA3 /* Fl_Browser_.cxx */; };
 		22BEC71AF42AC078B015549D /* glut_font.cxx in Sources */ = {isa = PBXBuildFile; fileRef = CA39566FD1F25D47C83DE042 /* glut_font.cxx */; };
 		2308935FE679ADE8327AE74B /* fl_engraved_label.cxx in Sources */ = {isa = PBXBuildFile; fileRef = B98E80F32C266E5A9E5EA0DC /* fl_engraved_label.cxx */; };
@@ -363,6 +362,7 @@
 		9BE637FBE722BBB0E2896901 /* Fl_Adjuster.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 16532B344B1865245755CAF3 /* Fl_Adjuster.cxx */; };
 		9C5AAE18A7136EEF026B00C5 /* Fl_Valuator.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 28324A042EE3A22D856FCEED /* Fl_Valuator.cxx */; };
 		9D93665CC439902AA2399F52 /* Fl_Window_Type.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 6CC8BD4EDB9253ED95642350 /* Fl_Window_Type.cxx */; };
+		9D9AAF1AE62FE9C59F975DDD /* Fl_Gl_Device_Plugin.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 5D188953C0E0216E287719DA /* Fl_Gl_Device_Plugin.cxx */; };
 		9DE7341A8FBC1AEFD0A18D2C /* OpenGL.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 8C876172C27EA252C565DBAE /* OpenGL.framework */; };
 		9F3EAEA1AD4D86F0DEB69EAE /* Fl_Window_hotspot.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 7D3339A9CD9A00B8A4F6D86B /* Fl_Window_hotspot.cxx */; };
 		A0DA0F3203830340F8F4ABBD /* Fl_x.cxx in Sources */ = {isa = PBXBuildFile; fileRef = 1CF5FD89905762B02A5F1D3A /* Fl_x.cxx */; };
@@ -3548,7 +3548,6 @@
 		1FCF605876ACDF0C37353943 /* button.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = button.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		2097DF39BF487FE63A19B2DB /* Fl_Input_.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Input_.cxx; path = ../../src/Fl_Input_.cxx; sourceTree = SOURCE_ROOT; };
 		20D5080729E562F13002641C /* valuators.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = valuators.app; sourceTree = BUILT_PRODUCTS_DIR; };
-		20DB1B86BA838A41209BAA59 /* Fl_Gl_Printer.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Gl_Printer.cxx; path = ../../src/Fl_Gl_Printer.cxx; sourceTree = SOURCE_ROOT; };
 		21551346B84925242E9942CA /* jcinit.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; name = jcinit.c; path = ../../jpeg/jcinit.c; sourceTree = SOURCE_ROOT; };
 		21BB2D14771B842988DFB174 /* Fl_add_idle.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_add_idle.cxx; path = ../../src/Fl_add_idle.cxx; sourceTree = SOURCE_ROOT; };
 		224E58459FEDC29C5ED01B1B /* fullscreen.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = fullscreen.app; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -3647,6 +3646,7 @@
 		5C37D7B3EEB272272DB34687 /* fltkpng.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = fltkpng.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		5C77424BC3FA8DD40F116E8B /* input_choice.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = input_choice.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		5CF866773819FF355388C15F /* subwindow.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = subwindow.app; sourceTree = BUILT_PRODUCTS_DIR; };
+		5D188953C0E0216E287719DA /* Fl_Gl_Device_Plugin.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Fl_Gl_Device_Plugin.cxx; path = ../../src/Fl_Gl_Device_Plugin.cxx; sourceTree = SOURCE_ROOT; };
 		5D7C4FE0387C6272C8157FC7 /* glpuzzle.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = glpuzzle.app; sourceTree = BUILT_PRODUCTS_DIR; };
 		5D9BCB7ABE0DB45AAB820C1D /* pixmap_browser.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = pixmap_browser.cxx; path = ../../test/pixmap_browser.cxx; sourceTree = SOURCE_ROOT; };
 		5E079F4524100018D9EB37EA /* label.cxx */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = label.cxx; path = ../../test/label.cxx; sourceTree = SOURCE_ROOT; };
@@ -5234,7 +5234,7 @@
 				1240BC854CD53B386ED7AEE6 /* gl_draw.cxx */,
 				C1F192C1BDF6ABF0084A5C9C /* glut_compatability.cxx */,
 				CA39566FD1F25D47C83DE042 /* glut_font.cxx */,
-				20DB1B86BA838A41209BAA59 /* Fl_Gl_Printer.cxx */,
+				5D188953C0E0216E287719DA /* Fl_Gl_Device_Plugin.cxx */,
 				8C876172C27EA252C565DBAE /* OpenGL.framework */,
 				12104A5D9262E8DF5F955F82 /* AGL.framework */,
 			);
@@ -7946,7 +7946,7 @@
 				E0C675DD623CE6EAFDD55FF1 /* gl_draw.cxx in Sources */,
 				35A5A00A20671E8DCB8F867F /* glut_compatability.cxx in Sources */,
 				22BEC71AF42AC078B015549D /* glut_font.cxx in Sources */,
-				2252F8C2D072099F09E9FB74 /* Fl_Gl_Printer.cxx in Sources */,
+				9D9AAF1AE62FE9C59F975DDD /* Fl_Gl_Device_Plugin.cxx in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
diff --git a/ide/Xcode3/config.h b/ide/Xcode3/config.h
index 3978020c9..739f9ebaa 100644
--- a/ide/Xcode3/config.h
+++ b/ide/Xcode3/config.h
@@ -1,5 +1,5 @@
 /*
- * "$Id: ide_xcode.cxx 7169 2010-02-27 22:38:25Z matt $"
+ * "$Id: ide_xcode.cxx 7267 2010-03-14 21:29:12Z matt $"
  *
  * Configuration file for the Fast Light Tool Kit (FLTK).
  *
@@ -50,5 +50,5 @@
 #define HAVE_DLSYM 1
 
 /*
- * End of "$Id: ide_xcode.cxx 7169 2010-02-27 22:38:25Z matt $".
+ * End of "$Id: ide_xcode.cxx 7267 2010-03-14 21:29:12Z matt $".
  */
\ No newline at end of file
diff --git a/src/Fl_Preferences.cxx b/src/Fl_Preferences.cxx
index 15da95ff7..e29d7cb72 100644
--- a/src/Fl_Preferences.cxx
+++ b/src/Fl_Preferences.cxx
@@ -25,6 +25,7 @@
 //     http://www.fltk.org/str.php
 //
 
+#define FL_PLUGIN_VERBOSE
 
 #include <FL/Fl.H>
 #include <FL/Fl_Preferences.H>
@@ -1812,6 +1813,10 @@ char Fl_Preferences::Node::copyTo(Fl_Tree *tree, Fl_Tree_Item *ti)
 Fl_Plugin::Fl_Plugin(const char *klass, const char *name)
 : id(0)
 {
+#ifdef FL_PLUGIN_VERBOSE
+  printf("Fl_Plugin: creating a plugin, class \"%s\", name \"%s\"\n",
+         klass, name);
+#endif
   Fl_Plugin_Manager pm(klass);
   id = pm.addPlugin(name, this);
 }
@@ -1821,6 +1826,9 @@ Fl_Plugin::Fl_Plugin(const char *klass, const char *name)
  */
 Fl_Plugin::~Fl_Plugin()
 {
+#ifdef FL_PLUGIN_VERBOSE
+  printf("Fl_Plugin: deleting a plugin\n");
+#endif
   if (id)
     Fl_Plugin_Manager::remove(id);
 }
@@ -1832,6 +1840,9 @@ Fl_Plugin::~Fl_Plugin()
 Fl_Plugin_Manager::Fl_Plugin_Manager(const char *klass)
 : Fl_Preferences(0, Fl_Preferences::Name("%s/%s", "plugins", klass))
 {
+#ifdef FL_PLUGIN_VERBOSE
+  printf("Fl_Plugin: creating a plugin manager for class \"%s\"\n", klass);
+#endif
 }
 
 /**
@@ -1842,6 +1853,9 @@ Fl_Plugin_Manager::Fl_Plugin_Manager(const char *klass)
  */
 Fl_Plugin_Manager::~Fl_Plugin_Manager()
 {
+#ifdef FL_PLUGIN_VERBOSE
+  printf("Fl_Plugin: deleting a plugin manager\n");
+#endif
 }
 
 /**
@@ -1854,6 +1868,9 @@ Fl_Plugin *Fl_Plugin_Manager::plugin(int index)
   Fl_Preferences pin(this, index);
   pin.get("address", buf, "@0", 32);
   sscanf(buf, "@%p", &ret);
+#ifdef FL_PLUGIN_VERBOSE
+  printf("Fl_Plugin: returning plugin at index %d: 0x%p\n", index, ret);
+#endif
   return ret;
 }
 
@@ -1868,8 +1885,14 @@ Fl_Plugin *Fl_Plugin_Manager::plugin(const char *name)
     Fl_Preferences pin(this, name);
     pin.get("address", buf, "@0", 32);
     sscanf(buf, "@%p", &ret);
+#ifdef FL_PLUGIN_VERBOSE
+    printf("Fl_Plugin: returning plugin named \"%s\": 0x%p\n", name, ret);
+#endif
     return ret;
   } else {
+#ifdef FL_PLUGIN_VERBOSE
+    printf("Fl_Plugin: no plugin found named \"%s\"\n", name);
+#endif
     return 0L;
   }
 }
@@ -1883,6 +1906,9 @@ Fl_Plugin *Fl_Plugin_Manager::plugin(const char *name)
 Fl_Preferences::ID Fl_Plugin_Manager::addPlugin(const char *name, Fl_Plugin *plugin)
 {
   char buf[32];
+#ifdef FL_PLUGIN_VERBOSE
+  printf("Fl_Plugin: adding plugin named \"%s\" at 0x%p\n", name, plugin);
+#endif
   Fl_Preferences pin(this, name);
   snprintf(buf, 32, "@%p", plugin);
   pin.set("address", buf);