Merge branch 'stable'

[gnulib.git] / m4 / c-stack.m4

diff --git a/m4/c-stack.m4 b/m4/c-stack.m4
index d613fa8..e8917e6 100644 (file)
--- a/m4/c-stack.m4
+++ b/m4/c-stack.m4
@@ -7,11 +7,10 @@
 
 # Written by Paul Eggert.
 
-# serial 12
+# serial 14
 
 AC_DEFUN([AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC],
-  [# for STACK_DIRECTION
-   AC_REQUIRE([AC_FUNC_ALLOCA])
+  [
    AC_REQUIRE([AC_CANONICAL_HOST])
    AC_CHECK_FUNCS_ONCE([setrlimit])
    AC_CHECK_HEADERS_ONCE([ucontext.h])
@@ -339,7 +338,7 @@ AC_DEFUN([gl_PREREQ_C_STACK],
    AC_REQUIRE([AC_FUNC_ALLOCA])
 
    AC_CHECK_FUNCS_ONCE([sigaltstack])
-   AC_CHECK_DECLS([sigaltstack], , , [#include <signal.h>])
+   AC_CHECK_DECLS([sigaltstack], , , [[#include <signal.h>]])
 
    AC_CHECK_HEADERS_ONCE([unistd.h ucontext.h])