gap: stop using T_CHAR

Author: fingolfin

src/sage/libs/gap/element.pyx

@@ -262,9 +262,9 @@ cdef GapElement make_any_gap_element(parent, Obj obj):
 
     TESTS::
 
-        sage: T_CHAR = libgap.eval("'c'");  T_CHAR
+        sage: x = libgap.eval("'c'");  x
         "c"
-        sage: type(T_CHAR)
+        sage: type(x)
         <class 'sage.libs.gap.element.GapElement_String'>
 
         sage: libgap.eval("['a', 'b', 'c']")   # gap strings are also lists of chars
@@ -320,7 +320,7 @@ cdef GapElement make_any_gap_element(parent, Obj obj):
             return make_GapElement_String(parent, obj)
         elif GAP_IsList(obj):
             return make_GapElement_List(parent, obj)
-        elif num == T_CHAR:
+        elif GAP_ValueOfChar(obj) != -1:
             ch = make_GapElement(parent, obj).IntChar().sage()
             return make_GapElement_String(parent, make_gap_string(chr(ch)))
         result = make_GapElement(parent, obj)

src/sage/libs/gap/gap_includes.pxd

@@ -116,7 +116,6 @@ cdef extern from "gap/objects.h" nogil:
         T_PERM2
         T_PERM4
         T_BOOL
-        T_CHAR
         T_FUNCTION
         T_COMOBJ
         T_POSOBJ