Description: XS boot workaround
 XS auto-generated C code results in a segfault on i386 Debian when
 doing "#undef PERL_VERSION", so Marpa::R2 cannot be loaded.  Instead
 doing #define PERL_VERSION 0 circumvents this.
Author: Michael Banck <mbanck@debian.org>
Last-Update: 2014-11-22
License: Same as Marpa::R2 code

--- a/xs/R2.xs
+++ b/xs/R2.xs
@@ -7088,6 +7088,19 @@
 INCLUDE: general_pattern.xsh
 
 BOOT:
+  /* XS generates this code for boot:
+   *
+   *|#if (PERL_REVISION == 5 && PERL_VERSION >= 9)
+   *|        if (PL_unitcheckav)
+   *|        call_list(PL_scopestack_ix, PL_unitcheckav);
+   *|#endif
+   *
+   * On i386 Debian, this results in a segfault, so Marpa::R2
+   * cannot be loaded.  Setting PERL_VERSION to 0 circumvents
+   * running call_list().
+   */
+#undef PERL_VERSION
+#define PERL_VERSION 0
     marpa_debug_handler_set(marpa_r2_warn);
 
     /* vim: set expandtab shiftwidth=2: */