relaxng.c: cast to allow compilation with sun studio 11
Sun Studio 11 was failing to compile relaxng.c due to a type mismatch
in a ternary operator used to provide an argument to xmlRngPErr. It
seems that sos11 cc is more pedantic about this part of the C99
standard. GCC issues a warning but doesn't fail by default.
After casting the string literal "nothing" to (const xmlChar *) sos11
cc is happy. GCC no longer issues a warning either.
Another warning was cleaned up with an identical cast.
1 file changed