Revert attempt at supporting both autoconf 2.13 and

modern versions in the same build chain.  There are
simply too many broken things in 2.13 to make it work.
Cache handling is broken as well which is why I need
to revert the pdo_inc_path cache fix as well.

trunk is now 2.60+ only and I'll work on cleaning out
all the legacy cruft from there.

11 files changed, 113 insertions, 66 deletions

diff --git a/acinclude.m4 b/acinclude.m4
index 7873e07cb2..f022a8a75d 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -29,10 +29,6 @@ AC_DEFUN([PHP_CONFIGURE_PART],[
   AC_MSG_RESULT([${T_MD}$1${T_ME}])
 ])
 
-AC_DEFUN([PHP_DIVERT],[
-   ifdef([AC_PRESERVE_HELP_ORDER], [], [ divert($1) ] )
-])
-
 dnl -------------------------------------------------------------------------
 dnl Build system helper macros
 dnl -------------------------------------------------------------------------
@@ -2740,17 +2736,17 @@ dnl
 dnl PHP_CHECK_PDO_INCLUDES([found [, not-found]])
 dnl
 AC_DEFUN([PHP_CHECK_PDO_INCLUDES],[
-  AC_CACHE_CHECK([for PDO includes], pdo_cv_inc_path, [
+  AC_CACHE_CHECK([for PDO includes], pdo_inc_path, [
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     fi
   ])
-  if test -n "$pdo_cv_inc_path"; then
+  if test -n "$pdo_inc_path"; then
 ifelse([$1],[],:,[$1])
   else
 ifelse([$2],[],[AC_MSG_ERROR([Cannot find php_pdo_driver.h.])],[$2])
diff --git a/configure.in b/configure.in
index 5aded2de7d..4d729fcc54 100644
--- a/configure.in
+++ b/configure.in
@@ -1,8 +1,27 @@
 ## $Id$ -*- autoconf -*-
 dnl ## Process this file with autoconf to produce a configure script.
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(1)
+divert(1)
+
+dnl ## Diversion 1 is the autoconf + automake setup phase. We also
+dnl ## set the PHP version, deal with platform-specific compile
+dnl ## options and check for the basic compile tools.
+
+dnl ## Diversion 2 is the initial checking of OS features, programs,
+dnl ## libraries and so on.
+
+dnl ## In diversion 3 we check for compile-time options to the PHP
+dnl ## core and how to deal with different system dependencies. 
+dnl ## This includes whether debugging or short tags are enabled
+dnl ## and the default behaviour of php.ini options.
+dnl ## This is also where an SAPI interface is selected (choosing between
+dnl ## Apache module, CGI etc.)
+
+dnl ## In diversion 4 we check user-configurable general settings.
+
+dnl ## In diversion 5 we check which extensions should be compiled.
+dnl ## All of these are normally in the extension directories.
+dnl ## Diversion 5 is the last one.  Here we generate files and clean up.
 
 dnl include Zend specific macro definitions first
 dnl -------------------------------------------------------------------------
@@ -13,9 +32,6 @@ dnl -------------------------------------------------------------------------
 
 AC_PREREQ(2.13)
 AC_INIT(README.SVN-RULES)
-dnl For autoconf 2.60+ we use AC_PRESERVE_HELP_ORDER 
-dnl instead of 2.13-style diversions
-ifdef([AC_PRESERVE_HELP_ORDER], [AC_PRESERVE_HELP_ORDER], [])
 
 PHP_CONFIG_NICE(config.nice)
 
@@ -106,6 +122,21 @@ dnl or the contents of libs.
 $php_shtool mkdir -p libs
 rm -f libs/*
 
+dnl Darwin 9 hack
+dnl Because the default debugging format used by Apple's GCC on Mac OS 10.5
+dnl causes errors in all current and past versions of Autoconf, we do a little
+dnl messing with the CFLAGS here to trick it.
+php_did_darwin9_cheat=0
+case $host_alias in
+*darwin9*)
+  hasg=`echo $CFLAGS | grep -E '(^-g)|([[:space:]]-g)'`
+  if test x"$hasg" = "x"; then
+    php_did_darwin9_cheat=1
+    CFLAGS="$CFLAGS -gstabs"
+  fi
+  ;;
+esac
+
 dnl Checks for programs.
 dnl -------------------------------------------------------------------------
 
@@ -273,9 +304,16 @@ sinclude(Zend/Zend.m4)
 sinclude(TSRM/threads.m4)
 sinclude(TSRM/tsrm.m4)
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(2)
 
+divert(2)
+
+dnl ## Diversion 2 is where we set PHP-specific options and come up
+dnl ## with reasonable default values for them. We check for pthreads here
+dnl ## because the information is needed by the SAPI configuration.
+dnl ## This is also where an SAPI interface is selected (choosing between
+dnl ## Apache module, CGI etc.)
+
+dnl .
 dnl -------------------------------------------------------------------------
 
 PTHREADS_CHECK
@@ -306,8 +344,12 @@ if test "$enable_maintainer_zts" = "yes"; then
   PTHREADS_FLAGS
 fi
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(3)
+divert(3)
+
+dnl ## In diversion 3 we check for compile-time options to the PHP
+dnl ## core and how to deal with different system dependencies. 
+dnl ## This includes whether debugging or short tags are enabled
+dnl ## and the default behaviour of php.ini options.
 
 dnl Starting system checks.
 dnl -------------------------------------------------------------------------
@@ -649,8 +691,9 @@ if test "x$php_crypt_r" = "x1"; then
   PHP_CRYPT_R_STYLE
 fi
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(4)
+divert(4)
+
+dnl ## In diversion 4 we check user-configurable general settings.
 
 dnl General settings.
 dnl -------------------------------------------------------------------------
@@ -889,8 +932,10 @@ else
   AC_MSG_RESULT([using system default])
 fi
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(5)
+divert(5)
+
+dnl ## In diversion 5 we check which extensions should be compiled.
+dnl ## All of these are normally in the extension directories.
 
 dnl Extension configuration.
 dnl -------------------------------------------------------------------------
@@ -958,7 +1003,7 @@ if test "$ac_cv_lib_crypt_crypt" = "yes"; then
   EXTRA_LIBS="-lcrypt $EXTRA_LIBS -lcrypt"
 fi
 
-#unset LIBS LDFLAGS
+unset LIBS LDFLAGS
 
 dnl PEAR
 dnl -------------------------------------------------------------------------
@@ -1041,7 +1086,7 @@ if test "$abs_srcdir" != "$abs_builddir"; then
 fi
 
 ZEND_EXTRA_LIBS="$LIBS"
-#unset LIBS LDFLAGS
+unset LIBS LDFLAGS
 
 PHP_HELP_SEPARATOR([TSRM:])
 PHP_CONFIGURE_PART(Configuring TSRM)
@@ -1053,7 +1098,7 @@ fi
 EXTRA_LDFLAGS="$EXTRA_LDFLAGS $LDFLAGS"
 EXTRA_LDFLAGS_PROGRAM="$EXTRA_LDFLAGS_PROGRAM $LDFLAGS"
 EXTRA_LIBS="$EXTRA_LIBS $LIBS"
-#unset LIBS LDFLAGS
+unset LIBS LDFLAGS
 
 test "$prefix" = "NONE" && prefix=/usr/local
 test "$exec_prefix" = "NONE" && exec_prefix='${prefix}'
@@ -1317,6 +1362,15 @@ SHARED_LIBTOOL='$(LIBTOOL)'
 
 CC=$old_CC
 
+dnl Finish the Darwin hack
+if test "$php_did_darwin9_cheat" -eq 1; then
+  if test "$PHP_DEBUG" = "1"; then
+    CFLAGS=`echo "$CFLAGS" | $SED -e 's/-gstabs/-g/g'`
+  else
+    CFLAGS=`echo "-O2 $CFLAGS" | $SED -e 's/-gstabs//g'`
+  fi
+fi
+
 PHP_CONFIGURE_PART(Generating files)
 
 CXXFLAGS_CLEAN=$CXXFLAGS
diff --git a/ext/pdo_dblib/config.m4 b/ext/pdo_dblib/config.m4
index ba8244c721..3410ba9c6b 100644
--- a/ext/pdo_dblib/config.m4
+++ b/ext/pdo_dblib/config.m4
@@ -59,19 +59,19 @@ if test "$PHP_PDO_DBLIB" != "no"; then
   ],[
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     else
       AC_MSG_ERROR([Cannot find php_pdo_driver.h.])
     fi
-    AC_MSG_RESULT($pdo_cv_inc_path)
+    AC_MSG_RESULT($pdo_inc_path)
   ])
 
   PDO_DBLIB_DEFS="-DPDO_DBLIB_FLAVOUR=\\\"freetds\\\""
-  PHP_NEW_EXTENSION(pdo_dblib, pdo_dblib.c dblib_driver.c dblib_stmt.c, $ext_shared,,-I$pdo_cv_inc_path $PDO_DBLIB_DEFS)
+  PHP_NEW_EXTENSION(pdo_dblib, pdo_dblib.c dblib_driver.c dblib_stmt.c, $ext_shared,,-I$pdo_inc_path $PDO_DBLIB_DEFS)
   AC_CHECK_LIB(dnet_stub, dnet_addr,
      [ PHP_ADD_LIBRARY_WITH_PATH(dnet_stub,,PDO_DBLIB_SHARED_LIBADD)
         AC_DEFINE(HAVE_LIBDNET_STUB,1,[ ])
diff --git a/ext/pdo_firebird/config.m4 b/ext/pdo_firebird/config.m4
index 7b6f669a50..94704d3adb 100644
--- a/ext/pdo_firebird/config.m4
+++ b/ext/pdo_firebird/config.m4
@@ -50,7 +50,7 @@ if test "$PHP_PDO_FIREBIRD" != "no"; then
   PHP_ADD_LIBRARY_WITH_PATH($FIREBIRD_LIBNAME, $FIREBIRD_LIBDIR, PDO_FIREBIRD_SHARED_LIBADD)
   PHP_ADD_INCLUDE($FIREBIRD_INCDIR)
   AC_DEFINE(HAVE_PDO_FIREBIRD,1,[ ])
-  PHP_NEW_EXTENSION(pdo_firebird, pdo_firebird.c firebird_driver.c firebird_statement.c, $ext_shared,,-I$pdo_cv_inc_path)
+  PHP_NEW_EXTENSION(pdo_firebird, pdo_firebird.c firebird_driver.c firebird_statement.c, $ext_shared,,-I$pdo_inc_path)
   PHP_SUBST(PDO_FIREBIRD_SHARED_LIBADD)
   PHP_ADD_EXTENSION_DEP(pdo_firebird, pdo)
 fi
diff --git a/ext/pdo_mysql/config.m4 b/ext/pdo_mysql/config.m4
index 66e26fcb4f..fc5fc8102a 100755
--- a/ext/pdo_mysql/config.m4
+++ b/ext/pdo_mysql/config.m4
@@ -148,20 +148,20 @@ if test "$PHP_PDO_MYSQL" != "no"; then
   ],[
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     else
       AC_MSG_ERROR([Cannot find php_pdo_driver.h.])
     fi
-    AC_MSG_RESULT($pdo_cv_inc_path)
+    AC_MSG_RESULT($pdo_inc_path)
   ])
 
 
   dnl fix after renaming to pdo_mysql
-  PHP_NEW_EXTENSION(pdo_mysql, pdo_mysql.c mysql_driver.c mysql_statement.c, $ext_shared,,-I$pdo_cv_inc_path -I)
+  PHP_NEW_EXTENSION(pdo_mysql, pdo_mysql.c mysql_driver.c mysql_statement.c, $ext_shared,,-I$pdo_inc_path -I)
   ifdef([PHP_ADD_EXTENSION_DEP],
   [
     PHP_ADD_EXTENSION_DEP(pdo_mysql, pdo)
diff --git a/ext/pdo_oci/config.m4 b/ext/pdo_oci/config.m4
index b96a1b770d..9ae270e57e 100755
--- a/ext/pdo_oci/config.m4
+++ b/ext/pdo_oci/config.m4
@@ -199,18 +199,18 @@ You need to tell me where to find your Oracle Instant Client SDK, or set ORACLE_
   ],[
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     else
       AC_MSG_ERROR([Cannot find php_pdo_driver.h.])
     fi
-    AC_MSG_RESULT($pdo_cv_inc_path)
+    AC_MSG_RESULT($pdo_inc_path)
   ])
 
-  PHP_NEW_EXTENSION(pdo_oci, pdo_oci.c oci_driver.c oci_statement.c, $ext_shared,,-I$pdo_cv_inc_path)
+  PHP_NEW_EXTENSION(pdo_oci, pdo_oci.c oci_driver.c oci_statement.c, $ext_shared,,-I$pdo_inc_path)
 
   PHP_SUBST_OLD(PDO_OCI_SHARED_LIBADD)
   PHP_SUBST_OLD(PDO_OCI_DIR)
diff --git a/ext/pdo_odbc/config.m4 b/ext/pdo_odbc/config.m4
index b70dc9d539..36e506bd2c 100755
--- a/ext/pdo_odbc/config.m4
+++ b/ext/pdo_odbc/config.m4
@@ -47,15 +47,15 @@ if test "$PHP_PDO_ODBC" != "no"; then
   ],[
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     else
       AC_MSG_ERROR([Cannot find php_pdo_driver.h.])
     fi
-    AC_MSG_RESULT($pdo_cv_inc_path)
+    AC_MSG_RESULT($pdo_inc_path)
   ])
 
   AC_MSG_CHECKING([for selected PDO ODBC flavour])
@@ -165,7 +165,7 @@ functions required for PDO support.
     AC_MSG_ERROR([Your ODBC library does not exist or there was an error. Check config.log for more information])
   ], $PDO_ODBC_LDFLAGS)
 
-  PHP_NEW_EXTENSION(pdo_odbc, pdo_odbc.c odbc_driver.c odbc_stmt.c, $ext_shared,,-I$pdo_cv_inc_path $PDO_ODBC_INCLUDE)
+  PHP_NEW_EXTENSION(pdo_odbc, pdo_odbc.c odbc_driver.c odbc_stmt.c, $ext_shared,,-I$pdo_inc_path $PDO_ODBC_INCLUDE)
   PHP_SUBST(PDO_ODBC_SHARED_LIBADD)
   ifdef([PHP_ADD_EXTENSION_DEP],
   [
diff --git a/ext/pdo_pgsql/config.m4 b/ext/pdo_pgsql/config.m4
index f63c178f54..4a118ca810 100644
--- a/ext/pdo_pgsql/config.m4
+++ b/ext/pdo_pgsql/config.m4
@@ -109,18 +109,18 @@ if test "$PHP_PDO_PGSQL" != "no"; then
   ],[
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     else
       AC_MSG_ERROR([Cannot find php_pdo_driver.h.])
     fi
-    AC_MSG_RESULT($pdo_cv_inc_path)
+    AC_MSG_RESULT($pdo_inc_path)
   ])
 
-  PHP_NEW_EXTENSION(pdo_pgsql, pdo_pgsql.c pgsql_driver.c pgsql_statement.c, $ext_shared,,-I$pdo_cv_inc_path $PDO_PGSQL_CFLAGS)
+  PHP_NEW_EXTENSION(pdo_pgsql, pdo_pgsql.c pgsql_driver.c pgsql_statement.c, $ext_shared,,-I$pdo_inc_path $PDO_PGSQL_CFLAGS)
   ifdef([PHP_ADD_EXTENSION_DEP],
   [
     PHP_ADD_EXTENSION_DEP(pdo_pgsql, pdo) 
diff --git a/ext/pdo_sqlite/config.m4 b/ext/pdo_sqlite/config.m4
index b2b70a5038..4e6dd2cb12 100644
--- a/ext/pdo_sqlite/config.m4
+++ b/ext/pdo_sqlite/config.m4
@@ -19,15 +19,15 @@ if test "$PHP_PDO_SQLITE" != "no"; then
   ],[
     AC_MSG_CHECKING([for PDO includes])
     if test -f $abs_srcdir/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $abs_srcdir/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$abs_srcdir/ext
+      pdo_inc_path=$abs_srcdir/ext
     elif test -f $prefix/include/php/ext/pdo/php_pdo_driver.h; then
-      pdo_cv_inc_path=$prefix/include/php/ext
+      pdo_inc_path=$prefix/include/php/ext
     else
       AC_MSG_ERROR([Cannot find php_pdo_driver.h.])
     fi
-    AC_MSG_RESULT($pdo_cv_inc_path)
+    AC_MSG_RESULT($pdo_inc_path)
   ])
 
   php_pdo_sqlite_sources_core="pdo_sqlite.c sqlite_driver.c sqlite_statement.c"
@@ -70,7 +70,7 @@ if test "$PHP_PDO_SQLITE" != "no"; then
     ])
 
     PHP_SUBST(PDO_SQLITE_SHARED_LIBADD)
-    PHP_NEW_EXTENSION(pdo_sqlite, $php_pdo_sqlite_sources_core, $ext_shared,,-I$pdo_cv_inc_path)
+    PHP_NEW_EXTENSION(pdo_sqlite, $php_pdo_sqlite_sources_core, $ext_shared,,-I$pdo_inc_path)
   else
       # use bundled libs
       if test "$enable_maintainer_zts" = "yes"; then
@@ -92,7 +92,7 @@ if test "$PHP_PDO_SQLITE" != "no"; then
 
       PHP_NEW_EXTENSION(pdo_sqlite,
         $php_pdo_sqlite_sources_core,
-        $ext_shared,,-DPDO_SQLITE_BUNDLED=1 $other_flags $threadsafe_flags -I$pdo_cv_inc_path)
+        $ext_shared,,-DPDO_SQLITE_BUNDLED=1 $other_flags $threadsafe_flags -I$pdo_inc_path)
 
       PHP_SUBST(PDO_SQLITE_SHARED_LIBADD)
       PHP_ADD_EXTENSION_DEP(pdo_sqlite, sqlite3)
diff --git a/ext/sqlite/config.m4 b/ext/sqlite/config.m4
index a1699142ea..dbee55fa94 100644
--- a/ext/sqlite/config.m4
+++ b/ext/sqlite/config.m4
@@ -48,9 +48,9 @@ AC_DEFUN([PHP_PROG_LEMON],[
 if test "$PHP_SQLITE" != "no"; then
   if test "$PHP_PDO" != "no"; then
     PHP_CHECK_PDO_INCLUDES([], [AC_MSG_WARN([Cannot find php_pdo_driver.h.])])
-    if test -n "$pdo_cv_inc_path"; then
+    if test -n "$pdo_inc_path"; then
       AC_DEFINE([PHP_SQLITE2_HAVE_PDO], [1], [Have PDO])
-      pdo_cv_inc_path="-I$pdo_cv_inc_path"
+      pdo_inc_path="-I$pdo_inc_path"
     fi
   fi  
 
@@ -83,13 +83,13 @@ if test "$PHP_SQLITE" != "no"; then
       -L$SQLITE_DIR/$PHP_LIBDIR -lm
     ])
     SQLITE_MODULE_TYPE=external
-    PHP_SQLITE_CFLAGS=$pdo_cv_inc_path
+    PHP_SQLITE_CFLAGS=$pdo_inc_path
     sqlite_extra_sources="libsqlite/src/encode.c"
   else
     # use bundled library
     PHP_PROG_LEMON
     SQLITE_MODULE_TYPE=builtin
-    PHP_SQLITE_CFLAGS="-I@ext_srcdir@/libsqlite/src -I@ext_builddir@/libsqlite/src $pdo_cv_inc_path"
+    PHP_SQLITE_CFLAGS="-I@ext_srcdir@/libsqlite/src -I@ext_builddir@/libsqlite/src $pdo_inc_path"
     sqlite_extra_sources="libsqlite/src/opcodes.c \
         libsqlite/src/parse.c libsqlite/src/encode.c \
         libsqlite/src/auth.c libsqlite/src/btree.c libsqlite/src/build.c \
diff --git a/ext/standard/config.m4 b/ext/standard/config.m4
index d8c7ca57a4..98cdfd9e36 100644
--- a/ext/standard/config.m4
+++ b/ext/standard/config.m4
@@ -1,7 +1,6 @@
 dnl $Id$ -*- autoconf -*-
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(3)
+divert(3)dnl
 
 dnl
 dnl Check if flush should be called explicitly after buffered io
@@ -221,8 +220,7 @@ dnl
 AC_CHECK_FUNCS(getcwd getwd asinh acosh atanh log1p hypot glob strfmon nice fpclass isinf isnan)
 AC_FUNC_FNMATCH	
 
-dnl AC 2.13 Compatibility
-PHP_DIVERT(5)
+divert(5)dnl
 
 dnl
 dnl Check if there is a support means of creating a new process
@@ -234,7 +232,6 @@ AC_CHECK_FUNCS(fork CreateProcess, [
 ],[
   php_can_support_proc_open=no
 ])
-
 AC_MSG_CHECKING([if your OS can spawn processes with inherited handles])
 if test "$php_can_support_proc_open" = "yes"; then
   AC_MSG_RESULT(yes)