.dll issue is recurrent in Windows, but let me explain a bit why :
- GIMP tries to locate plug-ins in a single folder, without any recursive search, so all plug-in binaries should be put in that folder .
- A plug-in binary that needs
.dll must then install them also in the same path.
- As a result, it may create a lot of issues because these newly installed
.dll will be also used by default by the other plug-in that are located in the same folder, and if they need another version of the same
.dll, then it is a mess, making some plug-in unstable or crashing.
- So, the list of
.dll G'MIC tries to install is carefully restricted to a minimal set, to avoid
.dll conflicts. That is the set of
.dll packaged in the installer.
- For an unknown reason, it appears your installation of G'MIC needs some function that is not present in your current installed version of the
libwinpthread-1.dll. Don't ask me me why, I couldn't tell you, maybe you are using an old version of GIMP ? This .dll is packaged with the executable, so it should work flawlessly.
So my suggestion :
- First, uninstall your previous version of the plug-in. Be sure it is uninstalled (no older version should be put in one of the plug-in folder) before trying to install the new version.
- Once you have double or triple checked this, try the safer way of installing the plugin : don't use the installer but unzip the
.zip archive somewhere in a separate folder (not in your plug-in folder), and go to GIMP / Preferences / Paths, and add this folder as a plug-in path for GIMP.
If this doesn't work, then I'm afraid I cannot be of any help.
Things on Windows are always working randomly, and this is already a miracle we have succeeded to compile a version of G'MIC on this "system".