Disable CFFI Common Lisp target language

Clean up to disable target languages that have been neglected/not functional.
Target language be fully deleted in SWIG 4.1 unless a new maintainer brings
it up to an acceptable status (experimental or supported).

Issue swig#1447

Author: wsfulton

ANNOUNCE

@@ -11,7 +11,7 @@ SWIG is a software development tool that reads C/C++ header files and
 generates the wrapper code needed to make C and C++ code accessible
 from other programming languages including Perl, Python, Tcl, Ruby,
 PHP, C#, Go, Java, Javascript, Lua, Scheme (Guile, MzScheme),
-D, Ocaml, Octave, R, Scilab, Common Lisp (CFFI).
+D, Ocaml, Octave, R, Scilab.
 SWIG can also export its parse tree in
 the form of XML.  Major applications of SWIG
 include generation of scripting language extension modules, rapid

CHANGES.current

@@ -7,6 +7,10 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
 Version 4.0.0 (in progress)
 ===========================
 
+2019-02-04: wsfulton
+	    [CFFI] #1447 Common Lisp CFFI has been disabled as a target language in SWIG as part of a
+            clean up to remove target languages that have been neglected/not functional.
+
 2019-02-04: wsfulton
 	    [Allegrocl] #1447 Allegro Common Lisp has been disabled as a target language in SWIG as part of a
             clean up to remove target languages that have been neglected/not functional.

Doc/Manual/Preprocessor.html

@@ -109,7 +109,6 @@ <H2><a name="Preprocessor_condition_compilation">9.3 Conditional Compilation</a>
 SWIG_VERSION                    Hexadecimal (binary-coded decimal) number containing SWIG version,
                                 such as 0x010311 (corresponding to SWIG-1.3.11).
 
-SWIGCFFI                        Defined when using CFFI
 SWIGCSHARP                      Defined when using C#
 SWIGGUILE                       Defined when using Guile
 SWIGJAVA                        Defined when using Java

Doc/Manual/SWIG.html

@@ -118,7 +118,6 @@ <H2><a name="SWIG_nn2">5.1 Running SWIG</a></H2>
 
 <div class="shell"><pre>
 Supported Target Language Options
-     -cffi           - Generate CFFI wrappers
      -csharp         - Generate C# wrappers
      -d              - Generate D wrappers
      -go             - Generate Go wrappers

Doc/Manual/Sections.html

@@ -46,7 +46,6 @@ <H3><a name="Sections_language_modules">Supported Language Modules Documentation
 <li><a href="Guile.html#Guile">Guile support</a></li>
 <li><a href="Java.html#Java">Java support</a></li>
 <li><a href="Javascript.html#Javascript">Javascript support</a></li>
-<li><a href="Lisp.html#Lisp">Common Lisp support</a></li>
 <li><a href="Lua.html#Lua">Lua support</a></li>
 <li><a href="Mzscheme.html#Mzscheme">MzScheme/Racket support</a></li>
 <li><a href="Ocaml.html#Ocaml">Ocaml support</a></li>

Doc/Manual/chapters

@@ -24,7 +24,6 @@ Go.html
 Guile.html
 Java.html
 Javascript.html
-Lisp.html
 Lua.html
 Mzscheme.html
 Ocaml.html

Makefile.in

@@ -71,7 +71,6 @@ skip-ocaml      = test -n "@SKIP_OCAML@"
 skip-octave     = test -n "@SKIP_OCTAVE@"
 skip-csharp	= test -n "@SKIP_CSHARP@"
 skip-lua    	= test -n "@SKIP_LUA@"
-skip-cffi	= test -n "@SKIP_CFFI@"
 skip-r		= test -n "@SKIP_R@"
 skip-scilab     = test -n "@SKIP_SCILAB@"
 skip-go		= test -n "@SKIP_GO@"
@@ -112,7 +111,6 @@ check-aliveness:
 	@$(skip-octave)   || ./$(TARGET) -octave     -help
 	@$(skip-php)      || ./$(TARGET) -php7       -help
 	@$(skip-csharp)   || ./$(TARGET) -csharp     -help
-	@$(skip-cffi)     || ./$(TARGET) -cffi       -help
 	@$(skip-lua)      || ./$(TARGET) -lua        -help
 	@$(skip-r) 	  || ./$(TARGET) -r          -help
 	@$(skip-scilab)   || ./$(TARGET) -scilab     -help
@@ -139,7 +137,6 @@ check-versions:					\
 	check-php-version			\
 	check-csharp-version			\
 	check-lua-version			\
-	check-cffi-version			\
 	check-r-version				\
 	check-scilab-version			\
 	check-go-version			\
@@ -173,7 +170,6 @@ check-examples:					\
 	check-php-examples			\
 	check-csharp-examples                   \
 	check-lua-examples			\
-	check-cffi-examples			\
 	check-r-examples			\
 	check-scilab-examples			\
 	check-go-examples			\
@@ -193,7 +189,6 @@ octave_examples    :=$(shell sed '/^\#/d' $(srcdir)/Examples/octave/check.list)
 php_examples       :=$(shell sed '/^\#/d' $(srcdir)/Examples/php/check.list)
 csharp_examples    :=$(shell sed '/^\#/d' $(srcdir)/Examples/csharp/check.list)
 lua_examples       :=$(shell sed '/^\#/d' $(srcdir)/Examples/lua/check.list)
-cffi_examples      :=
 r_examples         :=$(shell sed '/^\#/d' $(srcdir)/Examples/r/check.list)
 scilab_examples    :=$(shell sed '/^\#/d' $(srcdir)/Examples/scilab/check.list)
 go_examples        :=$(shell sed '/^\#/d' $(srcdir)/Examples/go/check.list)
@@ -235,7 +230,6 @@ check-test-suite:				\
 	check-php-test-suite			\
 	check-csharp-test-suite			\
 	check-lua-test-suite			\
-	check-cffi-test-suite			\
 	check-r-test-suite			\
 	check-scilab-test-suite			\
 	check-go-test-suite			\
@@ -283,7 +277,6 @@ all-test-suite:					\
 	all-php-test-suite			\
 	all-csharp-test-suite			\
 	all-lua-test-suite			\
-	all-cffi-test-suite			\
 	all-r-test-suite			\
 	all-scilab-test-suite   		\
 	all-go-test-suite			\
@@ -307,7 +300,6 @@ broken-test-suite:				\
 	broken-php-test-suite			\
 	broken-csharp-test-suite		\
 	broken-lua-test-suite			\
-	broken-cffi-test-suite			\
 	broken-r-test-suite			\
 	broken-scilab-test-suite           	\
 	broken-go-test-suite			\
@@ -444,7 +436,7 @@ install-main:
 	@$(INSTALL_PROGRAM) $(TARGET) $(DESTDIR)$(BIN_DIR)/`echo $(TARGET_NOEXE) | sed '$(transform)'`@EXEEXT@
 
 lib-languages = typemaps tcl perl5 python guile java mzscheme ruby php ocaml octave \
-	csharp lua cffi r go d javascript javascript/jsc \
+	csharp lua r go d javascript javascript/jsc \
 	javascript/v8 scilab xml
 
 lib-modules = std

README

@@ -4,8 +4,7 @@ Version: 4.0.0 (in progress)
 
 Tagline: SWIG is a compiler that integrates C and C++ with languages
          including Perl, Python, Tcl, Ruby, PHP, Java, C#, D, Go, Lua,
-         Octave, R, Scheme (Guile, MzScheme/Racket), Scilab,
-         Ocaml, Common Lisp (CFFI).
+         Octave, R, Scheme (Guile, MzScheme/Racket), Scilab, Ocaml.
          SWIG can also export its parse tree into XML.
 
 SWIG reads annotated C/C++ header files and creates wrapper code (glue

Source/Makefile.am

@@ -47,7 +47,6 @@ eswig_SOURCES =	CParse/cscanner.c		\
 		Doxygen/pydoc.h			\
 		Modules/allocate.cxx		\
 		Modules/browser.cxx		\
-		Modules/cffi.cxx		\
 		Modules/contract.cxx		\
 		Modules/csharp.cxx		\
 		Modules/d.cxx			\

Source/Modules/swigmain.cxx

@@ -26,7 +26,6 @@
    can be dynamically loaded in future versions. */
 
 extern "C" {
-  Language *swig_cffi(void);
   Language *swig_csharp(void);
   Language *swig_d(void);
   Language *swig_go(void);
@@ -57,7 +56,7 @@ static TargetLanguageModule modules[] = {
   {"-allegrocl", NULL, "ALLEGROCL", Disabled},
   {"-chicken", NULL, "CHICKEN", Disabled},
   {"-clisp", NULL, "CLISP", Disabled},
-  {"-cffi", swig_cffi, "CFFI", Supported},
+  {"-cffi", NULL, "CFFI", Disabled},
   {"-csharp", swig_csharp, "C#", Supported},
   {"-d", swig_d, "D", Supported},
   {"-go", swig_go, "Go", Supported},

configure.ac

@@ -2673,12 +2673,6 @@ if test -z "$RBIN" ; then
 fi
 AC_SUBST(SKIP_R)
 
-SKIP_CFFI=
-#if test -z "$CFFIBIN" ; then
-    SKIP_CFFI="1"
-#fi
-AC_SUBST(SKIP_CFFI)
-
 SKIP_SCILAB=
 if test -z "$SCILAB"; then
     SKIP_SCILAB="1"
@@ -2801,7 +2795,6 @@ AC_CONFIG_FILES([
     Examples/test-suite/scilab/Makefile
     Examples/test-suite/tcl/Makefile
     Examples/test-suite/lua/Makefile
-    Examples/test-suite/cffi/Makefile
     Examples/test-suite/r/Makefile
     Examples/test-suite/go/Makefile
     Source/Makefile
@@ -2849,7 +2842,6 @@ EOF
 AC_OUTPUT
 
 langs=""
-test -n "$SKIP_CFFI"		|| langs="${langs}cffi "
 test -n "$SKIP_CSHARP"		|| langs="${langs}csharp "
 test -n "$SKIP_D"		|| langs="${langs}d "
 test -n "$SKIP_GO"		|| langs="${langs}go "