Parallel configure

10 files changed, 475 insertions, 221 deletions

diff --git a/.gitignore b/.gitignore
index 79b1d5dfad..46db1ffc9b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -169,9 +169,10 @@ JAVADOC-GENERATED
 /lib/*/doc/pdf/*.pdf
 /lib/*/doc/xml/*.xml
 
-/lib/configure
 /lib/config.log
 /lib/config.status
+/make/config.log
+/make/config.status
 
 #
 # Files generated by configure.
@@ -184,10 +185,12 @@ JAVADOC-GENERATED
 # Files generated by "./otp_build autoconf"
 #
 
+/lib/configure
 /lib/*/configure
 /lib/common_test/test_server/configure
 /lib/configure.in
-/aclocal.m4
+/make/aclocal.m4
+/make/configure
 /lib/common_test/priv/auxdir/config.guess
 /lib/common_test/priv/auxdir/config.sub
 /lib/common_test/priv/auxdir/install-sh
diff --git a/HOWTO/INSTALL.md b/HOWTO/INSTALL.md
index 2597794496..bafea0350d 100644
--- a/HOWTO/INSTALL.md
+++ b/HOWTO/INSTALL.md
@@ -340,6 +340,8 @@ use the `--prefix` argument like this: `./configure --prefix=<Dir>`.
 Some of the available `configure` options are:
 
 *   `--prefix=PATH` - Specify installation prefix.
+*   `--disable-parallel-configure` - Disable parallel execution of
+    `configure` scripts (parallel execution is enabled by default)
 *   `--{enable,disable}-kernel-poll` - Kernel poll support (enabled by
     default if possible)
 *   `--{enable,disable}-hipe` - HiPE support (enabled by default on supported
diff --git a/configure.src b/configure.src
new file mode 100644
index 0000000000..8dee8491f0
--- /dev/null
+++ b/configure.src
@@ -0,0 +1,435 @@
+#!/bin/sh
+#
+# %CopyrightBegin%
+#
+# Copyright Ericsson AB 2018. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# %CopyrightEnd%
+#
+#
+# This is a handcrafted wrapper script which runs the actual (autoconf)
+# 'configure' scripts in different parts of OTP.
+#
+# The true (autoconf) configure scripts are run in parallel unless
+# --disable-parallel-configure is passed as argument to this script.
+#
+# The config cache feature is disabled since it mostly causes problems
+# and especially when executing multiple configure scripts in parallel.
+# On windows a static cache for each configure is used since it
+# otherwise takes forever to run configure...
+#
+
+OTP_VERSION=@OTP_VERSION@
+
+unset CDPATH
+
+default_cflags="-g -O2"
+
+mXY_build=
+static_cache=
+
+bootstrap_only=no
+parallel_otp_configure=yes
+help=no
+user_srcdir=
+config_arguments=
+while test $# != 0; do
+    case $1 in
+	-srcdir=* | --srcdir=*)
+	    user_srcdir=`expr "$1" : '[^=]*=\(.*\)'`
+	    if test "$ERL_TOP" != ""; then
+		echo "WARNING: Overriding ERL_TOP with $user_srcdir" 1>&2
+		echo "" 1>&2
+	    fi
+	    ERL_TOP="$user_srcdir"
+	    ;;
+	-srcdir | --srcdir)
+	    shift
+	    test $# != 0 || {
+		echo "ERROR: Missing source dir" 1>&2
+		exit 1
+	    }
+	    user_srcdir="$1"
+	    if test "$ERL_TOP" != ""; then
+		echo "WARNING: Overriding ERL_TOP with $user_srcdir" 1>&2
+		echo "" 1>&2
+	    fi
+	    ERL_TOP="$user_srcdir"
+	    ;;
+	--enable-bootstrap-only)
+	    bootstrap_only=yes;;
+	--disable-bootstrap-only)
+	    bootstrap_only=no;;
+	--enable-option-checking)
+	    echo "ERROR: Cannot enable option checking" 1>&2
+	    exit 1;;
+	--disable-option-checking)
+	    # Got it...
+	    ;;
+	--disable-parallel-configure)
+	    parallel_otp_configure=no
+	    ;;
+	--config-cache | -C)
+	    echo "WARNING: Ignoring config cache file since it will mess up the configuration" 1>&2
+	    echo "" 1>&2
+	    ;;
+	-cache-file=* | --cache-file=* )
+	    static_cache=`expr "$1" : '[^=]*=\(.*\)'`
+	    if test "$static_cache" != "/dev/null"; then
+		echo "WARNING: Only using config cache file '$static_cache' as static cache" 1>&2
+		echo "" 1>&2
+	    else
+		static_cache=
+	    fi
+	    ;;
+        -cache-file | --cache-file)
+	    shift
+	    test $# != 0 || {
+		echo "ERROR: Missing cache file" 1>&2
+		exit 1
+	    }
+	    static_cache=$1
+	    if test "$static_cache" != "/dev/null"; then
+		echo "WARNING: Only using config cache file '$static_cache' as static cache" 1>&2
+		echo "" 1>&2
+	    else
+		static_cache=
+	    fi
+	    ;;
+	--enable-m64-build)
+	    mXY_build="-m64"
+	    ;;
+	--enable-m32-build)
+	    mXY_build="-m32"
+	    ;;
+	--disable-m64-build)
+	    if test "$mXY_build" = "-m64"; then
+		mXY_build=
+	    fi;;
+	--disable-m32-build)
+	    if test "$mXY_build" = "-m32"; then
+		mXY_build=
+	    fi;;
+	CFLAGS=* | LDFLAGS=*)
+	    flgs_var=`expr "$1" : '\([^=]*\)=.*'`
+	    flgs_val=`expr "$1" : '[^=]*=\(.*\)'`
+	    eval $flgs_var=\$flgs_val
+	    ;;
+	--help=r* | -help=r*)
+	    help=all;;
+        --help* | -help* | -h)
+	    help=$1;;
+        *)
+	    case $1 in
+		--without-*)
+		    skip_app=`expr "$1" : '--without-\(.*\)'`
+		    if test -d "lib/$skip_app"; then
+			echo "$skip_app" >> "$ERL_TOP/lib/SKIP-APPLICATIONS"
+		    fi;;
+		*)
+		    ;;
+	    esac
+            case $1 in
+		*\'*)
+                    1=`echo "$1" | sed "s/'/'\\\\\\\\''/g"` ;;
+		*)
+                ;;
+            esac
+            config_arguments="$config_arguments '$1'";;
+    esac
+    shift
+done
+
+if test $parallel_otp_configure = yes; then
+    case `uname -s` in
+	MSYS* | msys* | CYGWIN* | cygwin )
+            ;;
+	*)
+	    trap 'kill -KILL -$$' 1 2 3 6 15
+	    ;;
+    esac
+fi
+
+#
+# Figure ERL_TOP out...
+#
+
+root_dir=
+dir_chk_data="$OTP_VERSION"
+
+if root_dir=`dirname "$0" 2>/dev/null` \
+	&& test "$root_dir" != "" \
+	&& cd "$root_dir" 2>/dev/null; then
+    root_dir=`pwd 2>/dev/null`
+    if test $? -ne 0; then
+	root_dir=
+    else
+	case "$root_dir" in
+	    /*)
+		echo $dir_chk_data > "$root_dir"/config.dir.check.$$ 2>/dev/null
+		;;
+	    *)
+		root_dir=
+	esac
+    fi
+else
+    root_dir=
+fi
+
+if test "$root_dir" = ""; then
+    case X"$ERL_TOP" in
+	X)
+	    echo "ERROR: Cannot figure out the root directory of" 1>&2
+	    echo "       the OTP source. Please set the ERL_TOP" 1>&2
+	    echo "       environment variable." 1>&2
+	    exit 1
+	    ;;
+	X/*)
+	    cd "$ERL_TOP" 2>/dev/null || {
+		echo "ERROR: Cannot change directory to ERL_TOP " 1>&2
+		echo "       '$ERL_TOP'" 1>&2
+		exit 1
+	    }
+	    ;;
+	X*)
+	    echo "ERROR: ERL_TOP '$ERL_TOP' is not an absolute path" 1>&2
+	    exit 1
+	    ;;
+    esac
+else
+    case X"$ERL_TOP" in
+	X)
+	    ERL_TOP="$root_dir"
+	    rm -f "$root_dir"/config.dir.check.$$
+	    ;;
+	X/*)
+	    cd "$ERL_TOP" 2>/dev/null || {
+		rm -f "$root_dir"/config.dir.check.$$
+		echo "ERROR: Cannot change directory into ERL_TOP " 1>&2
+		echo "       '$ERL_TOP'" 1>&2
+		exit 1
+	    }
+	    dir_chk=`cat ./config.dir.check.$$ 2>/dev/null` || dir_chk=error
+	    rm -f "$root_dir"/config.dir.check.$$
+	    test "$dir_chk" = "$dir_chk_data" || {
+		echo "ERROR: ERL_TOP '$ERL_TOP' is not the same" 1>&2
+		echo "       as 'configure' location '$root_dir'" 1>&2
+		exit 1
+	    }
+	    ;;
+	X*)
+	    rm -f "$root_dir"/config.dir.check.$$
+	    echo "ERROR: ERL_TOP '$ERL_TOP' is not an absolute path" 1>&2
+	    exit 1
+	    ;;
+    esac
+fi
+
+export ERL_TOP
+
+rm -f "$ERL_TOP/lib/SKIP-APPLICATIONS"
+
+case "$help" in
+    no)
+        ;;
+    all)
+	(cd "$ERL_TOP/make" && ./configure --help)
+	app_dirs=
+	for app_dir in erts lib/*; do
+	    if test -f "$app_dir/configure"; then
+		echo ""
+		echo "=== $app_dir ==="
+		(cd "$ERL_TOP/$app_dir" && ./configure --help=short)
+	    fi
+	done
+	exit 0;;
+    *)
+	(cd "$ERL_TOP/make" && ./configure "$help")
+	exit 0;;
+esac
+
+if test "$mXY_build" = ""; then
+    if test "$CFLAGS" != ""; then
+	config_arguments="$config_arguments CFLAGS='$CFLAGS'"
+	unset CFLAGS
+    fi
+
+    if test "$LDFLAGS" != ""; then
+	config_arguments="$config_arguments LDFLAGS='$LDFLAGS'"
+	unset LDFLAGS
+    fi
+else
+    if test "$CFLAGS" = ""; then
+	CFLAGS=$default_cflags
+    fi
+    config_arguments="$config_arguments CFLAGS='$mXY_build $CFLAGS'"
+    unset CFLAGS
+    config_arguments="$config_arguments LDFLAGS='$mXY_build $LDFLAGS'"
+    unset LDFLAGS
+    case $mXY_build in
+	-m32)
+            config_arguments="$config_arguments --enable-m32-build"
+	    ;;
+	-m64)
+            config_arguments="$config_arguments --enable-m64-build"
+	    ;;
+    esac
+fi
+
+config_arguments="$config_arguments --disable-option-checking"
+
+if test $bootstrap_only = no; then
+    check_conf_dirs=`echo lib/*`
+else
+    check_conf_dirs="@BOOTSTRAP_LIB_APP_DIRS@"
+fi
+
+# 'erts' *needs* to be last in app_dirs! Any apps
+# after it wont be able to run in parallel with
+# erts...
+
+app_dirs=
+for app_dir in make $check_conf_dirs erts; do
+    if test -f "$app_dir/configure"; then
+       if test "$static_cache" != ""; then
+          cp -f "$static_cache" "$ERL_TOP/$app_dir/local.static.config.cache"
+       fi
+       rm -f $app_dir/configure.result.failed
+       rm -f $app_dir/configure.result.command
+       rm -f $app_dir/configure.result.stdout
+       rm -f $app_dir/configure.result.stderr
+       app_dirs="$app_dirs $app_dir"
+    fi
+done
+
+if test "$static_cache" = ""; then
+   local_cache_file=/dev/null
+else
+   local_cache_file=./local.static.config.cache
+fi
+
+for app_dir in $app_dirs; do
+    cd "$ERL_TOP/$app_dir"
+    cmd_str="./configure $config_arguments --cache-file=$local_cache_file --srcdir=\"$ERL_TOP/$app_dir\""
+    if test $parallel_otp_configure = no; then
+	echo "=== Running configure in $ERL_TOP/$app_dir ==="
+	eval $cmd_str
+	echo ""
+    elif test $app_dir != erts; then
+	echo $cmd_str >./configure.result.command
+	eval $cmd_str 1>./configure.result.stdout 2>./configure.result.stderr || echo "fatal" > "./configure.result.failed" &
+    else
+	# ERTS configure gets to use stdout/stderr; the others are printed when done...
+	echo "=== Running configure in $ERL_TOP/erts ==="
+	echo $cmd_str
+	eval $cmd_str || {
+	    rm -f erts/configure.result.* lib/*/configure.result.*
+	    echo "ERROR: $ERL_TOP/$app_dir/configure failed!" 1>&2
+	    kill -KILL -$$
+	    exit 1
+	}
+    fi
+done
+
+cd "$ERL_TOP"
+
+if test $parallel_otp_configure = yes; then
+    # Wait for all sub-configures to finish...
+    wait
+
+    for app_dir in $app_dirs; do
+	if test -f "$app_dir/configure.result.command"; then
+	    echo ""
+	    echo "=== Running configure in $ERL_TOP/$app_dir ==="
+	    cat "$app_dir/configure.result.command"
+	    rm -f "$app_dir/configure.result.command"
+	fi
+	if test -f "$app_dir/configure.result.stdout"; then
+	    cat "$app_dir/configure.result.stdout"
+	    rm -f "$app_dir/configure.result.stdout"
+	fi
+	if test -f "$app_dir/configure.result.stderr"; then
+	    cat "$app_dir/configure.result.stderr" 1>&2
+	    rm -f "$app_dir/configure.result.stderr"
+	fi
+	if test -f "$app_dir/configure.result.failed"; then
+	    rm -f erts/configure.result.* lib/*/configure.result.*
+	    echo "ERROR: $ERL_TOP/$app_dir/configure failed!" 1>&2
+	    exit 1
+	fi
+    done
+fi
+
+
+echo ""
+
+pattern="lib/*/SKIP"
+files=`echo $pattern`
+if test "$files" != "$pattern" || test -f "$ERL_TOP/lib/SKIP-APPLICATIONS"; then
+  echo '*********************************************************************'
+  echo '**********************  APPLICATIONS DISABLED  **********************'
+  echo '*********************************************************************'
+  echo
+  if test "$files" != "$pattern"; then
+    for skipfile in $files; do
+      app=`dirname $skipfile`; app=`basename $app`
+      printf "%-15s: " $app; cat $skipfile
+    done
+  fi
+  if test -f "$ERL_TOP/lib/SKIP-APPLICATIONS"; then
+    for skipapp in `cat "$ERL_TOP/lib/SKIP-APPLICATIONS"`; do
+      printf "%-15s: User gave --without-%s option\n" $skipapp $skipapp
+    done
+  fi
+  echo
+  echo '*********************************************************************'
+fi
+pattern="lib/*/CONF_INFO"
+files=`echo $pattern`
+if test "$files" != "$pattern" || test -f erts/CONF_INFO; then
+  echo '*********************************************************************'
+  echo '**********************  APPLICATIONS INFORMATION  *******************'
+  echo '*********************************************************************'
+  echo
+  test "$files" != "$pattern" || files=""
+  test ! -f erts/CONF_INFO || files="$files erts/CONF_INFO"
+  for infofile in $files; do
+    app=`dirname $infofile`; app=`basename $app`
+    printf "%-15s: " $app; cat $infofile
+  done
+  echo
+  echo '*********************************************************************'
+fi
+if test -f "erts/doc/CONF_INFO"; then
+  echo '*********************************************************************'
+  echo '**********************  DOCUMENTATION INFORMATION  ******************'
+  echo '*********************************************************************'
+  echo
+  printf "%-15s: \n" documentation; 
+  havexsltproc="yes"
+  for cmd in `cat erts/doc/CONF_INFO`; do
+	echo "                 $cmd is missing." 
+  if test $cmd = "xsltproc"; then
+    havexsltproc="no"
+  fi
+  done  
+  if test $havexsltproc = "no"; then
+    echo '                 The documentation can not be built.'
+  else
+    echo '                 Using fakefop to generate placeholder PDF files.'
+  fi
+  echo
+  echo '*********************************************************************'
+fi
diff --git a/erts/configure.in b/erts/configure.in
index 9e8ffd5ec5..5b604b18e8 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -26,11 +26,6 @@ AC_PREREQ(2.59)
 
 LM_PRECIOUS_VARS
 
-if test "x$no_recursion" != "xyes" -a "x$OVERRIDE_CONFIG_CACHE" = "x"; then
-    # We do not want to use a common cache!
-    cache_file=/dev/null
-fi
-
 dnl How to set srcdir absolute is taken from the GNU Emacs distribution
 #### Make srcdir absolute, if it isn't already.  It's important to
 #### avoid running the path through pwd unnecessary, since pwd can
diff --git a/lib/configure.in.src b/lib/configure.in.src
deleted file mode 100644
index d507a5c0dd..0000000000
--- a/lib/configure.in.src
+++ /dev/null
@@ -1,62 +0,0 @@
-dnl
-dnl %CopyrightBegin%
-dnl
-dnl Copyright Ericsson AB 1999-2016. All Rights Reserved.
-dnl
-dnl Licensed under the Apache License, Version 2.0 (the "License");
-dnl you may not use this file except in compliance with the License.
-dnl You may obtain a copy of the License at
-dnl
-dnl     http://www.apache.org/licenses/LICENSE-2.0
-dnl
-dnl Unless required by applicable law or agreed to in writing, software
-dnl distributed under the License is distributed on an "AS IS" BASIS,
-dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-dnl See the License for the specific language governing permissions and
-dnl limitations under the License.
-dnl
-dnl %CopyrightEnd%
-dnl
-
-dnl Turn off caching
-define([AC_CACHE_LOAD], )dnl
-define([AC_CACHE_SAVE], )dnl
-
-dnl Process this file with autoconf to produce a configure script.
-AC_INIT
-
-dnl
-dnl This is just to run configure in all applications that need it.
-dnl
-
-if test -z "$ERL_TOP" || test ! -d $ERL_TOP ; then
-  AC_MSG_ERROR(You need to set the environment variable ERL_TOP!)
-fi
-erl_top=${ERL_TOP}
-AC_CONFIG_AUX_DIRS($erl_top/erts/autoconf)
-
-AC_ARG_ENABLE(bootstrap-only,
-[  --enable-bootstrap-only enable bootstrap only configuration],
-[ if test "X$enableval" = "Xyes"; then
-     bootstrap_only=yes
-  else
-     bootstrap_only=no  
-  fi	
-],
-bootstrap_only=no)
-
-# Multiple versions of autoconf generates code that
-# don't work on all platforms (e.g. SunOS 5.8) if
-# sub directories are soft links. Internally at Ericsson
-# some OTP application directories are soft links.
-# An added "/." solves this problem.
-
-@BOOTSTRAP_CONFIGURE_APPS@
-
-if test $bootstrap_only = no; then
-
-@NON_BOOTSTRAP_CONFIGURE_APPS@
-
-fi
-
-AC_OUTPUT
diff --git a/lib/erl_interface/configure.in b/lib/erl_interface/configure.in
index a155ceef7e..46dd995289 100644
--- a/lib/erl_interface/configure.in
+++ b/lib/erl_interface/configure.in
@@ -29,11 +29,6 @@ dnl m4_define(EI_VERSION,regexp(m4_include(VERSION),[version \([-.0-9A-Za-z]+\)]
 
 AC_INIT()
 
-if test "x$no_recursion" != "xyes" -a "x$OVERRIDE_CONFIG_CACHE" = "x"; then
-    # We do not want to use a common cache!
-    cache_file=/dev/null
-fi
-
 dnl How to set srcdir absolute is taken from the GNU Emacs distribution
 #### Make srcdir absolute, if it isn't already.  It's important to
 #### avoid running the path through pwd unnecessary, since pwd can
diff --git a/lib/megaco/configure.in b/lib/megaco/configure.in
index eaa875d0a3..97314a6ba2 100644
--- a/lib/megaco/configure.in
+++ b/lib/megaco/configure.in
@@ -22,10 +22,6 @@ dnl
 dnl define([AC_CACHE_LOAD], )dnl
 dnl define([AC_CACHE_SAVE], )dnl
 
-if test "x$no_recursion" != "xyes" -a "x$OVERRIDE_CONFIG_CACHE" = "x"; then
-    # We do not want to use a common cache!
-    cache_file=/dev/null
-fi
 
 AC_INIT(vsn.mk)
 
diff --git a/lib/odbc/configure.in b/lib/odbc/configure.in
index 2dec6e5abf..c5cf2786ca 100644
--- a/lib/odbc/configure.in
+++ b/lib/odbc/configure.in
@@ -21,12 +21,6 @@ dnl
 dnl define([AC_CACHE_LOAD], )dnl
 dnl define([AC_CACHE_SAVE], )dnl
 
-if test "x$no_recursion" != "xyes" -a "x$OVERRIDE_CONFIG_CACHE" = "x"; then
-    # We do not want to use a common cache!
-    cache_file=/dev/null
-fi
-
-
 
 dnl Process this file with autoconf to produce a configure script.
 AC_INIT(c_src/odbcserver.c)
diff --git a/configure.in b/make/configure.in
index 559049aca1..c390e1ca31 100644
--- a/configure.in
+++ b/make/configure.in
@@ -44,7 +44,7 @@ case "X$ERL_TOP" in
     X)
 	;;
     X/*)
-	test -f $ERL_TOP/erts/emulator/beam/beam_emu.c || {
+	test -f "$ERL_TOP/erts/emulator/beam/beam_emu.c" || {
 	     AC_MSG_ERROR([Invalid \$ERL_TOP])
 	}
 	srcdir="$ERL_TOP";;
@@ -207,6 +207,9 @@ AC_MSG_CHECKING([OTP version])
 AC_MSG_RESULT([$OTP_VSN])
 AC_SUBST(OTP_VSN)
 
+AC_ARG_ENABLE(parallel-configure,
+AS_HELP_STRING([--disable-parallel-configure], [disable parallel execution of configure scripts]))
+
 AC_ARG_ENABLE(dirty-schedulers,
 AS_HELP_STRING([--enable-dirty-schedulers], [enable dirty scheduler support]))
 
@@ -412,77 +415,7 @@ if test $CROSS_COMPILING = no; then
    esac
 fi
 
-rm -f $ERL_TOP/lib/SKIP-APPLICATIONS
-for app in `cd lib && ls -d *`; do
-    var=`eval echo \\$with_$app`
-    if test X${var} = Xno; then
-       echo "$app" >> $ERL_TOP/lib/SKIP-APPLICATIONS
-     fi
-done
-
-export ERL_TOP
-AC_CONFIG_SUBDIRS(lib erts)
-
-AC_CONFIG_FILES([Makefile make/output.mk])
-AC_CONFIG_FILES([make/emd2exml], [chmod +x make/emd2exml])
+AC_CONFIG_FILES([../Makefile output.mk])
+AC_CONFIG_FILES([emd2exml], [chmod +x emd2exml])
 
 AC_OUTPUT
-
-pattern="lib/*/SKIP"
-files=`echo $pattern`
-if test "$files" != "$pattern" || test -f $ERL_TOP/lib/SKIP-APPLICATIONS; then
-  echo '*********************************************************************'
-  echo '**********************  APPLICATIONS DISABLED  **********************'
-  echo '*********************************************************************'
-  echo
-  if test "$files" != "$pattern"; then
-    for skipfile in $files; do
-      app=`dirname $skipfile`; app=`basename $app`
-      printf "%-15s: " $app; cat $skipfile
-    done
-  fi
-  if test -f $ERL_TOP/lib/SKIP-APPLICATIONS; then
-    for skipapp in `cat $ERL_TOP/lib/SKIP-APPLICATIONS`; do
-      printf "%-15s: User gave --without-%s option\n" $skipapp $skipapp
-    done
-  fi
-  echo
-  echo '*********************************************************************'
-fi
-pattern="lib/*/CONF_INFO"
-files=`echo $pattern`
-if test "$files" != "$pattern" || test -f erts/CONF_INFO; then
-  echo '*********************************************************************'
-  echo '**********************  APPLICATIONS INFORMATION  *******************'
-  echo '*********************************************************************'
-  echo
-  test "$files" != "$pattern" || files=""
-  test ! -f erts/CONF_INFO || files="$files erts/CONF_INFO"
-  for infofile in $files; do
-    app=`dirname $infofile`; app=`basename $app`
-    printf "%-15s: " $app; cat $infofile
-  done
-  echo
-  echo '*********************************************************************'
-fi
-if test -f "erts/doc/CONF_INFO"; then
-  echo '*********************************************************************'
-  echo '**********************  DOCUMENTATION INFORMATION  ******************'
-  echo '*********************************************************************'
-  echo
-  printf "%-15s: \n" documentation; 
-  havexsltproc="yes"
-  for cmd in `cat erts/doc/CONF_INFO`; do
-	echo "                 $cmd is missing." 
-  if test $cmd = "xsltproc"; then
-    havexsltproc="no"
-  fi
-  done  
-  if test $havexsltproc = "no"; then
-    echo '                 The documentation can not be built.'
-  else
-    echo '                 Using fakefop to generate placeholder PDF files.'
-  fi
-  echo
-  echo '*********************************************************************'
-fi
diff --git a/otp_build b/otp_build
index 5c9a649531..bea5773e15 100755
--- a/otp_build
+++ b/otp_build
@@ -24,7 +24,7 @@
 if [ -z "$ONLY_ERTS" ]; then
     AUTOCONF_SUBDIRS="lib lib/* lib/common_test/test_server"
 fi
-AUTOCONF_SUBDIRS="$AUTOCONF_SUBDIRS erts ."
+AUTOCONF_SUBDIRS="$AUTOCONF_SUBDIRS make erts"
 
 # `bootstrap_apps' should include application that are built, or
 # partly built in one of the bootstrap phases. Applications that
@@ -211,55 +211,10 @@ set_config_flags ()
 
 NL="\
 "
-create_lib_configure_in()
-{
-    cd $ERL_TOP
-
-    # Multiple versions of autoconf generates code that
-    # don't work on all platforms (e.g. SunOS 5.8) if
-    # sub directories are soft links. Internally at Ericsson
-    # some OTP application directories are soft links.
-    # An added "/." solves this problem.
-
-    sdirs=
-    for lib_app in $bootstrap_apps; do
-	case $lib_app in
-	    lib/*)
-		if [ -f "$lib_app/configure.in" ]; then
-		    app=`echo "$lib_app" | sed "s|lib/\(.*\)|\1|"`
-		    sdirs="${sdirs}test ! -f $app/configure || AC_CONFIG_SUBDIRS($app/.)${NL}"
-		fi;;
-	    *)
-		;;
-	esac
-    done
-
-    sed_bootstrap="s%@BOOTSTRAP_CONFIGURE_APPS@%$sdirs%g"
-
-    sdirs=
-    for lib_app in lib/*; do
-	is_bapp=false
-	for bapp in $bootstrap_apps; do
-	    test $bapp != $lib_app || { is_bapp=true; break; }
-	done
-	if [ $is_bapp = false ] && [ -f "$lib_app/configure.in" ]; then
-	    app=`echo "$lib_app" | sed "s|lib/\(.*\)|\1|"`
-	    sdirs="${sdirs}    test ! -f $app/configure || AC_CONFIG_SUBDIRS($app/.)${NL}"
-	fi
-    done
-
-    sed_non_bootstrap="s%@NON_BOOTSTRAP_CONFIGURE_APPS@%$sdirs%g"
-    
-    rm -f lib/configure.in
-    sed "$sed_bootstrap;$sed_non_bootstrap" > lib/configure.in < lib/configure.in.src || {
-	echo "Failed to create lib/configure.in"
-	exit 1
-    }
-}
 
 distribute_config_helpers ()
 {
-    aclocal_dirs=". ./lib/erl_interface ./lib/odbc ./lib/wx ./lib/megaco"
+    aclocal_dirs="make ./lib/erl_interface ./lib/odbc ./lib/wx ./lib/megaco"
     autoconf_aux_dirs="./lib/common_test/priv/auxdir ./lib/erl_interface/src/auxdir ./lib/common_test/test_server ./lib/wx/autoconf"
 
     aclocal_master="./erts/aclocal.m4"
@@ -281,7 +236,6 @@ distribute_config_helpers ()
 
 do_autoconf ()		
 {
-        create_lib_configure_in
 	distribute_config_helpers
 
 	if [ ! -z "$OVERRIDE_CONFIGURE" ]; then
@@ -322,6 +276,15 @@ do_autoconf ()
 	    ( cd "$d" && autoheader ) || exit 1
 	done
 
+	echo ""
+	echo "=== creating ./configure"
+	otp_version=`cat "$ERL_TOP/OTP_VERSION"`
+	bootstrap_lib_apps=`echo $bootstrap_apps | sed "s|erts||g"`
+	cat "$ERL_TOP/configure.src" \
+	    | sed "s|@OTP_VERSION@|$otp_version|g;s|@BOOTSTRAP_LIB_APP_DIRS@|$bootstrap_lib_apps|" \
+		  > "$ERL_TOP/configure"
+	chmod +x "$ERL_TOP/configure"
+	
 	restore_vars OVERRIDE_TARGET TARGET
 }
 
@@ -384,8 +347,8 @@ try_cross_configure ()
 
 	    test "X$build_value" != "X" || build_value="$BUILDSYS"
 
-	    build_sys=`$ERL_TOP/erts/autoconf/config.sub "$build_value"` || exit 1
-	    host_sys=`$ERL_TOP/erts/autoconf/config.sub "$host_value"` || exit 1
+	    build_sys=`"$ERL_TOP/erts/autoconf/config.sub" "$build_value"` || exit 1
+	    host_sys=`"$ERL_TOP/erts/autoconf/config.sub" "$host_value"` || exit 1
 
 	    
 	    test "$host_sys" = "$build_sys" || cross_configure=yes
@@ -499,7 +462,7 @@ do_configure ()
 	case $TARGET in
 	    vxworks_*)
 		( cd erts/autoconf && \
-		  $ERL_TOP/erts/autoconf/configure.vxworks $TARGET )
+		  "$ERL_TOP/erts/autoconf/configure.vxworks" $TARGET )
 		  echo "Configuring for build system too..." >&2
 		  hide_vars OVERRIDE_TARGET TARGET
 		  TARGET=$BUILDSYS
@@ -975,11 +938,11 @@ do_update_prel_git ()
 {
     get_do_commit $1
     setup_make
-    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET clean)
+    (cd "$ERL_TOP/erts/preloaded/src" && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET clean)
     $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET preloaded || exit 1
-    (cd $ERL_TOP/erts/preloaded/src && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET copy)
+    (cd "$ERL_TOP/erts/preloaded/src" && $MAKE MAKE="$MAKE" BOOTSTRAP_ROOT=$BOOTSTRAP_ROOT TARGET=$TARGET copy)
     if [ $do_commit = true ]; then
-	git add -A $ERL_TOP/erts/preloaded/ebin/*.beam
+	git add -A "$ERL_TOP/erts/preloaded/ebin/*.beam"
 	git commit -m 'Update preloaded modules'
 	echo "Preloaded updated and commited."
     else
@@ -1049,11 +1012,11 @@ do_debuginfo_win32 ()
     (cd erts/emulator && $MAKE MAKE="$MAKE" TARGET=$TARGET FLAVOR=smp debug &&\
 	$MAKE MAKE="$MAKE" TARGET=$TARGET FLAVOR=plain debug) || exit 1
     if [ -z "$1" ]; then
-	RELDIR=$ERL_TOP/release/$TARGET
+	RELDIR="$ERL_TOP/release/$TARGET"
     else
 	RELDIR="$1"
     fi
-    BINDIR=$ERL_TOP/bin/$TARGET
+    BINDIR="$ERL_TOP/bin/$TARGET"
     EVSN=`grep '^VSN' erts/vsn.mk | sed 's,^VSN.*=[^0-9]*\([0-9].*\)$,@\1,g;s,^[^@].*,,g;s,^@,,g'`
     for f in beam.debug.dll beam.debug.smp.dll beam.pdb beam.smp.pdb erl.pdb werl.pdb erlexec.pdb; do
 	if [ -f $BINDIR/$f ]; then
@@ -1066,7 +1029,7 @@ do_debuginfo_win32 ()
 do_installer_win32 ()
 {
     setup_make
-    installer_dir=$ERL_TOP/erts/etc/win32/nsis
+    installer_dir="$ERL_TOP/erts/etc/win32/nsis"
     (cd $installer_dir; $MAKE MAKE="$MAKE" TARGET=$TARGET TESTROOT=$1 release) || exit 1
 }
 
@@ -1110,7 +1073,7 @@ do_copy_primary_bootstrap ()
     cp -f $lib_src/compiler/ebin/*.beam $bootstrap/lib/compiler/ebin
 
     # bootstrap bin
-    if [ $bootstrap_src_top != $ERL_TOP ]; then
+    if [ $bootstrap_src_top != "$ERL_TOP" ]; then
 	test -d $bootstrap/bin || mkdir -p  $bootstrap/bin
 	cp -f $bootstrap_src_top/bin/* $bootstrap/bin
     fi
@@ -1119,22 +1082,22 @@ do_copy_primary_bootstrap ()
 
 do_save_bootstrap ()
 {
-    if [ ! -f $ERL_TOP/prebuilt.files ]; then
+    if [ ! -f "$ERL_TOP/prebuilt.files" ]; then
 	echo "This is not a pre-built source distribution" 1>&2
 	exit 1
     fi
-    if  [ -d $ERL_TOP/bootstrap/lib ]; then
+    if  [ -d "$ERL_TOP/bootstrap/lib" ]; then
 	echo "Bootstrap already exist" 1>&2
 	exit 1
     fi
 
-    do_copy_primary_bootstrap $ERL_TOP $ERL_TOP
+    do_copy_primary_bootstrap "$ERL_TOP" "$ERL_TOP"
 }
 
 do_remove_prebuilt_files ()
 {
     do_save_bootstrap
-    for file in $ERL_TOP/`cat $ERL_TOP/prebuilt.files` ; do
+    for file in "$ERL_TOP"/`cat "$ERL_TOP/prebuilt.files"` ; do
 	rm -f $file
     done
 }
@@ -1143,7 +1106,7 @@ do_remove_prebuilt_files ()
 
 check_erltop
 
-cd $ERL_TOP
+cd "$ERL_TOP"
 
 determine_version_controller
 
@@ -1157,7 +1120,7 @@ unset ${erl_otp_flags}
 # Target first guess, won't necessarily hold, may be changed for 
 # certain parameters.
 if [ X"$TARGET" = X"" ]; then
-	TARGET=`$ERL_TOP/erts/autoconf/config.guess`
+	TARGET=`"$ERL_TOP/erts/autoconf/config.guess"`
 fi
 BUILDSYS=$TARGET