LU-1199 build: Untangle the ldiskfs build system from lustre

[fs/lustre-release.git] / autogen.sh

diff --git a/autogen.sh b/autogen.sh
index 1fce0a4..d87fbb6 100644 (file)
--- a/autogen.sh
+++ b/autogen.sh
@@ -1,9 +1,152 @@
 #!/bin/sh
 
+# NOTE: Please avoid bashisms (bash specific syntax) in this script
+
 # install Lustre Git commit hooks by default - LU-2083
 for HOOK in commit-msg prepare-commit-msg; do
        [ -e .git/hooks/$HOOK ] || ln -sf ../build/$HOOK .git/hooks/
 done
 
-exec bash build/autogen.sh $@ 
+# taken from gnome-common/macros2/autogen.sh
+compare_versions() {
+       ch_min_version=$1
+       ch_actual_version=$2
+       ch_status=0
+       IFS="${IFS=     }"; ch_save_IFS="$IFS"; IFS="."
+       set $ch_actual_version
+       for ch_min in $ch_min_version; do
+               # remove letter suffixes
+               ch_cur=$(echo $1 | sed 's/[^0-9].*$//'); shift
+               if [ -z "$ch_min" ]; then break; fi
+               if [ -z "$ch_cur" ]; then ch_status=1; break; fi
+               if [ $ch_cur -gt $ch_min ]; then break; fi
+               if [ $ch_cur -lt $ch_min ]; then ch_status=1; break; fi
+       done
+       IFS="$ch_save_IFS"
+       return $ch_status
+}
+
+error_msg() {
+       echo "$cmd is $1.  Version $required (or higher) is"\
+            " required to build Lustre."
+
+       if [ ! -x /usr/bin/lsb_release ]; then
+               echo "lsb_release could not be found.  "\
+                    "If it were available more help on how to resolve this"
+               echo "situation would be available."
+                exit 1
+       fi
+
+       local dist_id="$(lsb_release -is)"
+       local howto=""
+       howto() {
+               echo -e "To install $cmd, you can use the command:\n# $1"
+       }
+       case $dist_id in
+                Ubuntu|Debian) howto "apt-get install $cmd" ;;
+       CentOS|RedHat*|Fedora*) howto "yum install $cmd" ;;
+                        SUSE*) howto "yast -i $cmd" ;;
+                            *) cat <<EOF
+Installation instructions for the package $cmd on $dist_id are not known.
+If you know how to install the required package, please file a bug at
+http://bugs.whamcloud.com/ and include your distribution and the output from:
+"lsb_release -is" is: "$dist_id"
+EOF
+                       ;;
+       esac
+
+       exit 1
+}
+
+check_version() {
+       local tool
+       local cmd
+       local required
+       local version
+
+       tool=$1
+       cmd=$2
+       required=$3
+       echo -n "checking for $cmd >= $required... "
+       if ! $cmd --version >/dev/null ; then
+               error_msg "missing"
+       fi
+       version=$($cmd --version | awk "/$tool \(GNU/ { print \$4 }")
+       echo "found $version"
+       if ! compare_versions "$required" "$version" ; then
+               error_msg "too old"
+       fi
+}
+
+echo "Checking for a complete tree..."
+REQUIRED_DIRS="build libcfs lnet lustre"
+OPTIONAL_DIRS="snmp portals"
+CONFIGURE_DIRS="libsysio lustre-iokit ldiskfs"
+
+for dir in $REQUIRED_DIRS ; do
+       if [ ! -d "$dir" ] ; then
+               cat >&2 <<EOF
+Your tree seems to be missing $dir.
+Please read README.lustrecvs for details.
+EOF
+               exit 1
+       fi
+       ACLOCAL_FLAGS="$ACLOCAL_FLAGS -I $PWD/$dir/autoconf"
+done
+# optional directories for Lustre
+for dir in $OPTIONAL_DIRS; do
+       if [ -d "$dir" ] ; then
+               ACLOCAL_FLAGS="$ACLOCAL_FLAGS -I $PWD/$dir/autoconf"
+       fi
+done
+
+found=false
+for AMVER in 1.9 1.10 1.11; do
+       if which automake-$AMVER 2> /dev/null; then
+               found=true
+               break
+       fi
+done
+
+if ! $found; then
+       cmd=automake required="1.9" error_msg "not found"
+       exit 1
+fi
+
+[ "${AMVER#1.}" -ge "10" ] && AMOPT="-W no-portability"
 
+check_version automake automake-$AMVER "1.9"
+check_version autoconf autoconf "2.57"
+
+run_cmd()
+{
+       cmd="$@"
+       echo -n "Running $cmd"
+       eval $cmd
+       res=$?
+       if [ $res -ne 0 ]; then
+               echo " failed: $res"
+               echo "Aborting"
+               exit 1
+       fi
+       echo
+}
+
+export ACLOCAL="aclocal-$AMVER"
+export AUTOMAKE="automake-$AMVER"
+
+run_cmd "$ACLOCAL $ACLOCAL_FLAGS"
+run_cmd "autoheader"
+run_cmd "$AUTOMAKE -a -c $AMOPT"
+run_cmd autoconf
+
+# Run autogen.sh in these directories
+PWD_SAVE=$PWD
+for dir in $CONFIGURE_DIRS; do
+       if [ -d $dir ] ; then
+               cd $dir
+               echo "Running autogen for $dir..."
+               run_cmd "sh autogen.sh"
+       fi
+       cd $PWD_SAVE
+done