@@ -46,10 +46,18 @@
 #import "autorelease.h"
 
 #ifndef __MACH__
 extern char **environ;
 #endif
+
+@interface OFProcess (OF_PRIVATE_CATEGORY)
+#ifndef _WIN32
+- (char**)OF_environmentForDictionary: (OFDictionary*)dictionary;
+#else
+- (of_char16_t*)OF_environmentForDictionary: (OFDictionary*)dictionary;
+#endif
+@end
 
 @implementation OFProcess
 + (instancetype)processWithProgram: (OFString*)program
 {
 	return [[[self alloc] initWithProgram: program] autorelease];