Description: Upstream changes by gniibe, not to use AX_FUNC_GETCONTEXT
	Some architectures has stub for getcontext, so we just use CHECK_FUNCS
Author: NIIBE Yutaka <gniibe@fsij.org>
Last-Update: 2018-05-10

Index: sigscheme/configure.ac
===================================================================
--- sigscheme.orig/configure.ac
+++ sigscheme/configure.ac
@@ -203,10 +203,10 @@ AX_LANG_WNOERROR  # end AC_LANG_WERROR
 # Checks for library functions
 #
 
-AX_FUNC_GETCONTEXT
+# AX_FUNC_GETCONTEXT
 AX_FUNC_SIGSETJMP
 
-AC_CHECK_FUNCS([strtoll strtoimax \
+AC_CHECK_FUNCS([getcontext strtoll strtoimax \
                 memalign \
                 fileno getcwd getpagesize])
 
