---- Running from REPL
VERRAZANO-USER> (generate-opengl-binding)


; *** Processing binding :OPENGL-CFFI-BINDINGS
$ /Users/opoku/Downloads/gccxml-build/bin/gccxml --version 
; Standard output:
GCC-XML version 0.9.0
$ /Users/opoku/Downloads/gccxml-build/bin/gccxml -I/usr/X11/include -fxml="/tmp/24vzntemp.xml" "/tmp/930vzntemp.cpp" 
$ /Users/opoku/Downloads/gccxml-build/bin/gccxml -I/usr/X11/include --preprocess -dDI "/tmp/930vzntemp.cpp" >"/tmp/75vzntemp.mac"
; Warning: Failed to generated binding for :OPENGL-CFFI-BINDINGS, error: The value "1" can not be used to set the value of the slot GCCXML:EXTERN in #<FUNCTION <anonymous> #x300043060C9D>, because it is not of type (MEMBER T NIL). 
; While executing: (:INTERNAL GENERATE-BINDING*), in process repl-thread(5).


----Backtrace---

The value "1" can not be used to set the value of the slot GCCXML:EXTERN in #<FUNCTION <anonymous> #x300043119ECD>, because it is not of type (MEMBER
                                                                                                                                               T
                                                                                                                                               NIL). 
   [Condition of type CCL::BAD-SLOT-TYPE]

Restarts:
 0: [ABORT] Return to SLIME's top level.
 1: [ABORT-BREAK] Reset this process
 2: [ABORT] Kill this process

Backtrace:
  0: (#<CCL::STANDARD-KERNEL-METHOD (SETF
                                    CCL:SLOT-VALUE-USING-CLASS) (T
                                                                 STANDARD-CLASS
                                                                 T
                                                                 CCL:STANDARD-EFFECTIVE-SLOT-DEFINITION)> "1" #<STANDARD-CLASS GCCXML:FUNCTION> #<FUNCTION <anonymous> #x300043119ECD> #<STANDARD-EFFECTIVE-SLOT-DEFINITION for instance slot GCCXML:EXTERN #x300041599CDD>)
      Locals:
        CCL::NEW = "1"
        CLASS = #<STANDARD-CLASS GCCXML:FUNCTION>
        #:G48257 = :INSTANCE
        CCL::SLOT-VECTOR = #<SLOT-VECTOR  #x300043119EED>
        TYPE = (MEMBER T NIL)
        CCL::TYPE-PREDICATE = #<Anonymous Function #x300041599C6F>
  1: (#<STANDARD-METHOD SAX:START-ELEMENT (FLEXML:FLEXML-BUILDER
                                          T
                                          T
                                          T
                                          T)> #<VERRAZANO::GCCXML-PARSER #x3000430F812D> 'NIL "Function" "Function" '(#S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL
                                  :LOCAL-NAME #1="extern"
                                  :QNAME #1#
                                  :VALUE "1"
                                  :SPECIFIED-P ...)
          #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL ..
      Locals:
        FLEXML::NAMESPACE-URI = NIL
        FLEXML::LOCAL-NAME = "Function"
        FLEXML::QNAME = "Function"
        FLEXML::ATTRIBUTES = (#S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "extern" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "line" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "file" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "location" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "context" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "returns" :QNAME ...) ...)
        FLEXML::INCLUDE-DEFAULT-VALUES = T
        PACKAGE = "GCCXML"
        CLASS = #<STANDARD-CLASS GCCXML:FUNCTION>
        FLEXML::PARENT = #<GCCXML:GCC_XML #x30004310120D>
        FLEXML::ID->NODE = #<HASH-TABLE :TEST EQUAL size 4/60 #x3000430F7B1D>
        CXML:ATTRIBUTE = #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "extern" :QNAME ...)
        #:LOOP-LIST-243 = (#S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "line" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "file" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "location" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "context" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "returns" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "name" :QNAME ...) ...)
        CXML:ATTRIBUTE-LOCAL-NAME = "extern"
        CXML:ATTRIBUTE-NAMESPACE-URI = NIL
        FLEXML::ATTRIBUTE-PACKAGE = "GCCXML"
        FLEXML::SLOT-NAME = GCCXML:EXTERN
        FLEXML::SLOT = #<STANDARD-EFFECTIVE-SLOT-DEFINITION for instance slot GCCXML:EXTERN #x300041599CDD>
        #:G248 = #<STANDARD-CLASS GCCXML:FUNCTION>
  2: (CCL::%CALL-NEXT-METHOD '(NIL
       #<STANDARD-METHOD SAX:START-ELEMENT (FLEXML:FLEXML-BUILDER
                                            T
                                            T
                                            T
                                            T)>
       . 4265058))
  3: (#<STANDARD-METHOD SAX:START-ELEMENT :AROUND (VERRAZANO::GCCXML-PARSER
                                                  T
                                                  T
                                                  T
                                                  T)> #<VERRAZANO::GCCXML-PARSER #x3000430F812D> 'NIL "Function" "Function" '(#S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL
                                  :LOCAL-NAME #1="extern"
                                  :QNAME #1#
                                  :VALUE "1"
                                  :SPECIFIED-P ...)
          #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL ..
      Locals:
        VERRAZANO::PARSER = #<VERRAZANO::GCCXML-PARSER #x3000430F812D>
        VERRAZANO::NAMESPACE-URI = NIL
        VERRAZANO::LOCAL-NAME = "Function"
        VERRAZANO::QNAME = "Function"
        VERRAZANO::ATTRIBUTES = (#S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "extern" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "line" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "file" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "location" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "context" :QNAME ...) #S(SAX::STANDARD-ATTRIBUTE :NAMESPACE-URI NIL :LOCAL-NAME "returns" :QNAME ...) ...)
        #:NEXT-METHOD-CONTEXT = (NIL #<STANDARD-METHOD SAX:START-ELEMENT (FLEXML:FLEXML-BUILDER T T T T)> . 4265058)
  4: (CCL::%%STANDARD-COMBINED-METHOD-DCODE '(#<STANDARD-METHOD SAX:START-ELEMENT :AROUND (VERRAZANO::GCCXML-PARSER
                                                    T
                                                    T
                                                    T
                                                    T)>
       #<STANDARD-METHOD SAX:START-ELEMENT (FLEXML:FLEXML-BUILDER
                                            T
                                            T
                                            T
                                            T)>) 4265058)
  5: (CXML::P/ELEMENT #S(CXML::ZSTREAM :TOKEN-CATEGORY NIL :TOKEN-SEMANTIC NIL
                      :INPUT-STACK (#<RUNES:XSTREAM [main document :MAIN file://+/tmp/613vzntemp.xml]>)))