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Add configure check for auxiliary stacks

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* configure.ac: Add a check for struct GC_stack_base.reg_base, which is
  a proxy for checking for the only aspect of ia64 that we care about.
* libguile/gen-scmconfig.c:
* libguile/gen-scmconfig.h.in: Arrange to define
  SCM_HAVE_AUXILIARY_STACK.
This commit is contained in:
Andy Wingo 2018-06-17 11:04:18 +02:00
commit 574f67d1b6
3 changed files with 13 additions and 3 deletions
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6
libguile/gen-scmconfig.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2003-2013 Free Software Foundation, Inc.
/* Copyright (C) 2003-2013, 2018 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -415,6 +415,10 @@ main (int argc, char *argv[])
pf ("#define SCM_ICONVEH_ESCAPE_SEQUENCE %d\n",
SCM_I_GSC_ICONVEH_ESCAPE_SEQUENCE);
pf ("\n");
pf ("/* Define to 1 if there is an auxiliary stack, as in ia64. */\n");
pf ("#define SCM_HAVE_AUXILIARY_STACK %d\n", SCM_I_GSC_HAVE_AUXILIARY_STACK);
printf ("#endif\n");
return 0;