Pascal was Apple's original preferred language for Macintosh software development, and MPW was initially released with only Pascal support. A C compiler was released with MPW 2.0. The MPW C compiler was written under contract for Apple by Greenhills, a Macintosh-variant of the Green Hills C compiler designed specially for Apple and which was similar to the version that was available for the Lisa Workshop. In addition, the original MPW C compiler was known for its casual and frequently humorous error messages ("we already did this function"), as well as occasionally addressing users by name. These quirks were not carried on after the PowerPC transition, when Apple replaced the originals with compilers written by Symantec. Pascal support was no longer provided by the mid-90s due to declining popularity of the language.