Elinks: Fix libgc initialization.

svn path=/nixpkgs/trunk/; revision=27046

pkgs/applications/networking/browsers/elinks/default.nix

···
     sha256 = "1li4vlbq8wvnigxlkzb15490y90jg6y9yzzrqpqcz2h965w5869d";
   };
 
+  patches = [ ./gc-init.patch ];
+
   buildInputs = [ python perl ncurses x11 bzip2 zlib openssl spidermonkey guile gpm ];
-  
+
   configureFlags =
     ''
       --enable-finger --enable-html-highlight --with-guile

pkgs/applications/networking/browsers/elinks/gc-init.patch

···
+Fix libgc initialization in the presence of Guile 2.0.
+
+--- elinks-0.12pre5/src/main/main.c	2009-07-07 14:23:17.000000000 +0200
++++ elinks-0.12pre5/src/main/main.c	2011-04-28 23:20:15.000000000 +0200
+@@ -339,6 +339,11 @@ int
+ main(int argc, char *argv[])
+ {
+ #ifdef CONFIG_GC
++	/* Guile 2.x uses libgc too and it initializes it this way, so we
++	 * must make sure to initialize it the same way, or it will just
++	 * segfault.  */
++	GC_all_interior_pointers = 0;
++
+ 	GC_INIT();
+ 	GC_set_warn_proc(gc_warning);
+ #endif
+