+ AC_CHECK_FUNCS_ONCE([canonicalize_file_name])
+ AC_REQUIRE([gl_DOUBLE_SLASH_ROOT])
+ AC_REQUIRE([gl_FUNC_REALPATH_WORKS])
+ if test $ac_cv_func_canonicalize_file_name = no; then
+ HAVE_CANONICALIZE_FILE_NAME=0
+ elif test "$gl_cv_func_realpath_works" != yes; then
+ REPLACE_CANONICALIZE_FILE_NAME=1
+ fi
+])
+
+# Provides canonicalize_file_name and realpath.
+AC_DEFUN([gl_CANONICALIZE_LGPL],
+[
+ AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
+ AC_REQUIRE([gl_CANONICALIZE_LGPL_SEPARATE])
+ if test $ac_cv_func_canonicalize_file_name = no; then
+ HAVE_CANONICALIZE_FILE_NAME=0
+ AC_LIBOBJ([canonicalize-lgpl])
+ if test $ac_cv_func_realpath = no; then
+ HAVE_REALPATH=0
+ elif test "$gl_cv_func_realpath_works" != yes; then
+ REPLACE_REALPATH=1
+ fi
+ elif test "$gl_cv_func_realpath_works" != yes; then
+ AC_LIBOBJ([canonicalize-lgpl])
+ REPLACE_REALPATH=1
+ REPLACE_CANONICALIZE_FILE_NAME=1
+ fi
+])
+
+# Like gl_CANONICALIZE_LGPL, except prepare for separate compilation
+# (no AC_LIBOBJ).
+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])