I installed this into gnulib as a minor improvement.
* m4/gnulib-common.m4 (AC_PROG_MKDIR_P):
Define only for Autoconf versions before 2.62.
(AC_C_RESTRICT): Use documented AC_AUTOCONF_VERSION, not
undocumented m4_PACKAGE_VERSION, for consistency with the
abovementioned change to AC_PROG_MKDIR_P. This should suffice
since we're checking for 2.62 or later, and AC_AUTOCONF_VERSION
was introduced in 2.62.
---
ChangeLog | 11 +++++++++++
m4/gnulib-common.m4 | 4 +++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/ChangeLog b/ChangeLog
index 427581a..62b6e51 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2012-12-20 Paul Eggert <egg...@cs.ucla.edu>
+
+ AC_PROG_MKDIR_P: don't workaround if not buggy
+ * m4/gnulib-common.m4 (AC_PROG_MKDIR_P):
+ Define only for Autoconf versions before 2.62.
+ (AC_C_RESTRICT): Use documented AC_AUTOCONF_VERSION, not
+ undocumented m4_PACKAGE_VERSION, for consistency with the
+ abovementioned change to AC_PROG_MKDIR_P. This should suffice
+ since we're checking for 2.62 or later, and AC_AUTOCONF_VERSION
+ was introduced in 2.62.
+
2012-12-15 Ben Pfaff <b...@cs.stanford.edu>
New 'c-*printf' modules for formatted output in C locale.
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4
index 15d2b2b..01796bd 100644
--- a/m4/gnulib-common.m4
+++ b/m4/gnulib-common.m4
@@ -294,6 +294,7 @@ Amsterdam
# for interoperability with automake-1.9.6 from autoconf-2.62.
# Remove this macro when we can assume autoconf >= 2.62 or
# autoconf >= 2.60 && automake >= 1.10.
+m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]),[2.62]),[-1],[
m4_ifdef([AC_PROG_MKDIR_P], [
dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
m4_define([AC_PROG_MKDIR_P],
@@ -304,13 +305,14 @@ m4_ifdef([AC_PROG_MKDIR_P], [
[AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
MKDIR_P='$(mkdir_p)'
AC_SUBST([MKDIR_P])])])
+])
# AC_C_RESTRICT
# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
# works.
# This definition can be removed once autoconf >= 2.62 can be assumed.
-m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.62]),[-1],[
+m4_if(m4_version_compare(m4_defn([AC_AUTOCONF_VERSION]),[2.62]),[-1],[
AC_DEFUN([AC_C_RESTRICT],
[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
[ac_cv_c_restrict=no
--
1.7.11.7
