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Created attachment 8627 [details]
The same diff, in a separate file form.
One proprietary windows software used to work under mono 2.x and stopped working
with 3.x with the mysterious error:
System.NullReferenceException: Object reference not set to an instance of an object
at System.Windows.Forms.Form.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0
at <removed_internalclass_reference>.Dispose (Boolean disposing) [0x00000] in <filename unknown>:0
at System.ComponentModel.Component.Finalize () [0x00000] in <filename unknown>:0
On running mono through --debug, I found that it is actually looking for "/tmp/install/lib/libgdiplus.so"
on windows, which is ridiculous. So I recursive grep'ed through it, and found
that it is due to a mis-configuration. Applying this diff makes the application concerned work again:
--- ../../Mono-3.2.3/etc/mono/config.orig 2013-09-15 03:23:08.000000000 +0100
+++ ../../Mono-3.2.3/etc/mono/config 2014-11-05 03:35:02.374253281 +0000
@@ -26,7 +26,7 @@
<dllentry dll="__Internal" name="MoveMemory" target="mono_win32_compat_MoveMemory"/>
<dllentry dll="__Internal" name="ZeroMemory" target="mono_win32_compat_ZeroMemory"/>
- <dllmap dll="gdiplus" target="/tmp/install/lib/libgdiplus.so" />
- <dllmap dll="gdiplus.dll" target="/tmp/install/lib/libgdiplus.so" />
+ <dllmap dll="gdiplus" target="/tmp/install/lib/libgdiplus.so" os="!windows"/>
+ <dllmap dll="gdiplus.dll" target="/tmp/install/lib/libgdiplus.so" os="!windows"/>
<dllmap dll="gtkhtml-3.0" target="libgtkhtml-3.8-15.dll"/>
The 3.2.3 installer is quite dated,
and this is likely an issue that's already addressed as my linux 3.8.0 do have the "!windows" part.
I am filing this so the issue is not forgotten, and hoping the next windows installer
will have it corrected, hopefully.
I'll close this when the next windows installer comes out with this corrected.
This is fixed in the mono 3.12 windows package.