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-rw-r--r--m4/include_next.m414
1 files changed, 8 insertions, 6 deletions
diff --git a/m4/include_next.m4 b/m4/include_next.m4
index b3c78491855..ebf081a1101 100644
--- a/m4/include_next.m4
+++ b/m4/include_next.m4
@@ -1,4 +1,4 @@
-# include_next.m4 serial 18
+# include_next.m4 serial 20
dnl Copyright (C) 2006-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -175,11 +175,13 @@ AC_DEFUN([gl_NEXT_HEADERS_INTERNAL],
[AC_CHECK_HEADERS_ONCE([$1])
])
+dnl FIXME: gl_next_header and gl_header_exists must be used unquoted
+dnl until we can assume autoconf 2.64 or newer.
m4_foreach_w([gl_HEADER_NAME], [$1],
[AS_VAR_PUSHDEF([gl_next_header],
[gl_cv_next_]m4_defn([gl_HEADER_NAME]))
if test $gl_cv_have_include_next = yes; then
- AS_VAR_SET([gl_next_header], ['<'gl_HEADER_NAME'>'])
+ AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])
else
AC_CACHE_CHECK(
[absolute name of <]m4_defn([gl_HEADER_NAME])[>],
@@ -208,7 +210,7 @@ AC_DEFUN([gl_NEXT_HEADERS_INTERNAL],
dnl eval is necessary to expand gl_absname_cpp.
dnl Ultrix and Pyramid sh refuse to redirect output of eval,
dnl so use subshell.
- AS_VAR_SET([gl_next_header],
+ AS_VAR_SET(gl_next_header,
['"'`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
sed -n '\#/]m4_defn([gl_HEADER_NAME])[#{
s#.*"\(.*/]m4_defn([gl_HEADER_NAME])[\)".*#\1#
@@ -218,20 +220,20 @@ AC_DEFUN([gl_NEXT_HEADERS_INTERNAL],
}'`'"'])
m4_if([$2], [check],
[else
- AS_VAR_SET([gl_next_header], ['<'gl_HEADER_NAME'>'])
+ AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])
fi
])
])
fi
AC_SUBST(
AS_TR_CPP([NEXT_]m4_defn([gl_HEADER_NAME])),
- [AS_VAR_GET([gl_next_header])])
+ [AS_VAR_GET(gl_next_header)])
if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
# INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
gl_next_as_first_directive='<'gl_HEADER_NAME'>'
else
# INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
- gl_next_as_first_directive=AS_VAR_GET([gl_next_header])
+ gl_next_as_first_directive=AS_VAR_GET(gl_next_header)
fi
AC_SUBST(
AS_TR_CPP([NEXT_AS_FIRST_DIRECTIVE_]m4_defn([gl_HEADER_NAME])),