i386/powerpc fix for
"undefined reference to Scintilla::RunStyles<long, char>::RunStyles()"

Index: scintilla/src/RunStyles.cxx
--- scintilla/src/RunStyles.cxx.orig
+++ scintilla/src/RunStyles.cxx
@@ -308,7 +308,8 @@ void RunStyles<DISTANCE, STYLE>::Check() const {
 
 template class Scintilla::RunStyles<int, int>;
 template class Scintilla::RunStyles<int, char>;
-#if (PTRDIFF_MAX != INT_MAX) || PLAT_HAIKU
+#if (PTRDIFF_MAX != INT_MAX) || PLAT_HAIKU || \
+    ( defined(__OpenBSD__) && defined(_ILP32) )
 template class Scintilla::RunStyles<ptrdiff_t, int>;
 template class Scintilla::RunStyles<ptrdiff_t, char>;
 #endif