+}
+
+get_version() {
+ app=$1
+
+ $app --version >/dev/null 2>&1 || return 1
+
+ $app --version 2>&1 |
+ sed -n '# Move version to start of line.
+ s/.*[v ]\([0-9]\)/\1/
+
+ # Skip lines that do not start with version.
+ /^[0-9]/!d
+
+ # Remove characters after the version.
+ s/[^.a-z0-9-].*//
+
+ # The first component must be digits only.
+ s/^\([0-9]*\)[a-z-].*/\1/
+
+ #the following essentially does s/5.005/5.5/
+ s/\.0*\([1-9]\)/.\1/g
+ p
+ q'
+}
+
+check_versions() {
+ ret=0
+
+ while read app req_ver; do
+ # We only need libtoolize from the libtool package.
+ if test "$app" = libtool; then
+ app=libtoolize
+ fi
+ # Honor $APP variables ($TAR, $AUTOCONF, etc.)
+ appvar=`echo $app | tr '[a-z]-' '[A-Z]_'`
+ test "$appvar" = TAR && appvar=AMTAR
+ eval "app=\${$appvar-$app}"
+ inst_ver=$(get_version $app)
+ if [ ! "$inst_ver" ]; then
+ echo "Error: '$app' not found" >&2
+ ret=1
+ elif [ ! "$req_ver" = "-" ]; then
+ latest_ver=$(sort_ver $req_ver $inst_ver | cut -d' ' -f2)
+ if [ ! "$latest_ver" = "$inst_ver" ]; then
+ echo "Error: '$app' version == $inst_ver is too old" >&2
+ echo " '$app' version >= $req_ver is required" >&2
+ ret=1
+ fi
+ fi
+ done
+
+ return $ret
+}
+
+print_versions() {
+ echo "Program Min_version"
+ echo "----------------------"
+ printf %s "$buildreq"
+ echo "----------------------"
+ # can't depend on column -t
+}
+
+use_libtool=0
+# We'd like to use grep -E, to see if any of LT_INIT,
+# AC_PROG_LIBTOOL, AM_PROG_LIBTOOL is used in configure.ac,
+# but that's not portable enough (e.g., for Solaris).
+grep '^[ ]*A[CM]_PROG_LIBTOOL' configure.ac >/dev/null \
+ && use_libtool=1
+grep '^[ ]*LT_INIT' configure.ac >/dev/null \
+ && use_libtool=1
+if test $use_libtool = 1; then
+ find_tool LIBTOOLIZE glibtoolize libtoolize
+fi
+
+if ! printf "$buildreq" | check_versions; then
+ echo >&2
+ if test -f README-prereq; then
+ echo "See README-prereq for how to get the prerequisite programs" >&2
+ else
+ echo "Please install the prerequisite programs" >&2
+ fi
+ exit 1
projects / bison.git / blobdiff