canonicalize, canonicalize-lgpl: honor // if distinct from /

[gnulib.git] / m4 / canonicalize.m4

diff --git a/m4/canonicalize.m4 b/m4/canonicalize.m4
index 47c5c01..2d24350 100644 (file)
--- a/m4/canonicalize.m4
+++ b/m4/canonicalize.m4
@@ -1,4 +1,4 @@
-# canonicalize.m4 serial 15
+# canonicalize.m4 serial 16
 
 dnl Copyright (C) 2003-2007, 2009 Free Software Foundation, Inc.
 
@@ -14,6 +14,7 @@ AC_DEFUN([gl_FUNC_CANONICALIZE_FILENAME_MODE],
 
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   AC_CHECK_FUNCS_ONCE([canonicalize_file_name])
+  AC_REQUIRE([gl_DOUBLE_SLASH_ROOT])
   AC_REQUIRE([gl_FUNC_REALPATH_WORKS])
   if test $ac_cv_func_canonicalize_file_name = no; then
     HAVE_CANONICALIZE_FILE_NAME=0
@@ -47,6 +48,7 @@ AC_DEFUN([gl_CANONICALIZE_LGPL_SEPARATE],
 [
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   AC_CHECK_FUNCS_ONCE([canonicalize_file_name getcwd readlink])
+  AC_REQUIRE([gl_DOUBLE_SLASH_ROOT])
   AC_REQUIRE([gl_FUNC_REALPATH_WORKS])
   AC_CHECK_HEADERS_ONCE([sys/param.h])
 ])