1 files changed, 21 insertions, 0 deletions

diff --git a/meta/classes/autotools.bbclass b/meta/classes/autotools.bbclass
index 941c06d032..141b2eea94 100644
--- a/meta/classes/autotools.bbclass
+++ b/meta/classes/autotools.bbclass
@@ -82,6 +82,27 @@ oe_runconf () {
 
 AUTOTOOLS_AUXDIR ?= "${S}"
 
+CONFIGURESTAMPFILE = "${WORKDIR}/configure.sstate"
+
+autotools_preconfigure() {
+        if [ -n "${CONFIGURESTAMPFILE}" -a -e "${CONFIGURESTAMPFILE}" ]; then
+                if [ "`cat ${CONFIGURESTAMPFILE}`" != "${BB_TASKHASH}" -a "${S}" != "${B}" ]; then
+                        echo "Previously configured separate build directory detected, cleaning ${B}"
+                        rm -rf ${B}
+                        mkdir ${B}
+                fi
+        fi
+}
+
+autotools_postconfigure(){
+        if [ -n "${CONFIGURESTAMPFILE}" ]; then
+                echo ${BB_TASKHASH} > ${CONFIGURESTAMPFILE}
+        fi
+}
+
+do_configure[prefuncs] += "autotools_preconfigure"
+do_configure[postfuncs] += "autotools_postconfigure"
+
 autotools_do_configure() {
         case ${PN} in
         autoconf*)