From 35bd52c1e8451ceed54b0b8fb68562ce11c99dfa Mon Sep 17 00:00:00 2001
From: Reinhard Prix <reinhard.prix@aei.mpg.de>
Date: Wed, 19 Oct 2005 14:46:26 +0000
Subject: [PATCH] put explicit version-checks into _autosetup so the user knows
 right-away if he needs to installer newer versions of autoconf&automake&Cie.
 [taken from E@H-buildscript 'eah_build.sh']

svn path=/trunk/boinc/; revision=8702
---
 _autosetup | 123 +++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 100 insertions(+), 23 deletions(-)

diff --git a/_autosetup b/_autosetup
index 0546c0c2e2..7dc391be24 100755
--- a/_autosetup
+++ b/_autosetup
@@ -2,35 +2,112 @@
 
 ## $Id$
 
-# this file is only for bootstrapping the "Makefile.in" files and "Makefile"
-# files; you probably don't need to run this if the Makefile.in files were
-# correctly checked into the repository.
+## ---------- some portability checks/adjustments [stolen from configure] ----------
+## 'echo -n' is not portable..
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+  *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T='	' ;;
+  *c*,*  ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+  *)       ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+##----------
 
-if [ -d autom4te.cache ]; then
-  /bin/rm -rf autom4te.cache
-fi
+## ----------------------------------------------------------------------
+## Check that given command $1 has version >= $2.$3
+## return 0 if ok, 1 too old or not found  (-> shell conventions).
+## ----------------------------------------------------------------------
+check_version()
+{
+    local foundit
+    ## get current version of $1
+    echo $ECHO_N "Checking version of '$1' >= $2.$3... $ECHO_C"
+    fullpath=`type -p $1`;
+    if [ -x "$fullpath" ]; then
+	foundit=yes;
+    fi
 
+    if [ "$foundit" != yes ]; then 
+	echo "Didn't find application";
+	ac_major=0; ac_minor=0; 
+    else
+	cmdline="$fullpath --version 2> /dev/null";
+	version=`$cmdline`;
+	if [ -n "${version}" ]; then
+	    ## HACK: the pre-pended space "x " is important for the following regexp 
+	    ## to always work even if the version-number comes back without text prepended
+	    version="x ${version}"
+	else
+	    version=0
+	fi
+	ac_major=`echo $version | sed 's/.* v*\([0-9]*\)[.]\([0-9]*\).*/\1/g'`
+	ac_minor=`echo $version | sed 's/.* v*\([0-9]*\)[.]\([0-9]*\).*/\2/g'`
+    fi
+
+    if [ ${ac_major} -ge $2 ] && [ ${ac_minor} -ge $3 ]; then
+	echo "ok. (${ac_major}.${ac_minor})"
+	return 0;
+    else
+	echo "failed. (${ac_major}.${ac_minor})"
+	return 1;
+    fi
+
+} ## check_version()
+
+
+## --------------------------------------------------------------------------------
+## 'MAIN' starts here 
+## --------------------------------------------------------------------------------
 echo "Bootstrapping configure script and makefiles:"
 
-ACLOCAL=aclocal
-AUTOHEADER=autoheader
-AUTOMAKE=automake
-AUTOCONF=autoconf
+## ---------- first check santity of the installed versions of the build-system
 
-if $ACLOCAL -I m4 && $AUTOHEADER && $AUTOMAKE && $AUTOCONF; then
-    ## We don't always run ./configure ourselves here, because the user may not
-   ## want to run it, or may want to run with custom parameters.
+## some sorry systems don't have proper GNU-make... build one
+if ! check_version make 3 79; then
+    echo "Couldn't find a new-enough version of GNU 'make', please install one!";
+    exit 1;
+    # build_lsc_aux "make-3.80"
+fi
 
-    if [ "$1" = "-a" ]; then
-	./configure -C --enable-maintainer-mode
-    elif [ "$1" = "-c" ]; then
-	./configure -C
-    else
-	echo "Done, now run ./configure"
-	echo " ./configure -C                         to enable caching"
-	echo " ./configure --enable-maintainer-mode   to enable maintainer depedencies"
-	exit 0
-    fi
+## FreeBSD's m4 seems to be broken? Download a fresh one
+if ! check_version m4 1 4; then
+    echo "Couldn't find a new-enough version of 'm4', please install one!";
+    exit 1;
+    # build_lsc_aux "m4-1.4.1"
+fi
+
+if ! check_version libtool 1 4; then
+    echo "Couldn't find a new-enough version of 'libtool', please install one!";
+    exit 1;
+    # build_lsc_aux "libtool-1.5.6"
+fi
+
+if ! check_version pkg-config 0 15; then
+    echo "Couldn't find a new-enough version of 'pkg-config', please install one!";
+    exit 1;
+    # build_lsc_aux "pkgconfig-0.15.0"
+fi
+
+if ! check_version autoconf 2 58; then
+    echo "Couldn't find a new-enough version of 'autoconf', please install one!";
+    echo "If you have a newer version, set the environment-variable 'AUTOCONF' to its path";
+    exit 1;
+    # build_lsc_aux "autoconf-2.59"
+fi
+if ! check_version automake 1 8; then
+    echo "Couldn't find a new-enough version of 'automake', please install one!";
+    echo "If you have a newer version, set the environment-variable 'AUTOMAKE' to its path";
+    exit 1;
+    # build_lsc_aux "automake-1.8.5"
+fi
+
+## ---------- ok, now run aclocal, automake, autohead and autoconf
+cmdline="aclocal -I m4 && autoheader && automake && autoconf";
+echo "$cmdline"
+if eval $cmdline; then
+    echo "Done, now run ./configure"
+    echo " ./configure -C                         to enable caching"
+    echo " ./configure --enable-maintainer-mode   to enable maintainer depedencies"
+    exit 0
 else
     echo "Something failed .... please check error-message and re-run when fixed."
     echo "exiting..."