new file mode 100644
@@ -0,0 +1,15 @@
+--- libgpg-error-1.12/configure.ac~ 2016-02-23 20:30:21.000000000 +0100
++++ libgpg-error-1.12/configure.ac 2016-02-23 21:16:20.284133994 +0100
+@@ -198,7 +198,11 @@ changequote([,])dnl
+ BUILD_FILEVERSION="${BUILD_FILEVERSION}0,mym4_revision_dec"
+ AC_SUBST(BUILD_FILEVERSION)
+
+-BUILD_TIMESTAMP=`date -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date`
++if test x"${SOURCE_DATE_EPOCH}" = x; then
++ BUILD_TIMESTAMP=`date -u +%Y-%m-%dT%H:%M+0000 2>/dev/null || date`
++else
++ BUILD_TIMESTAMP=`date -u -d @${SOURCE_DATE_EPOCH} +%Y-%m-%dT%H:%M+0000 2>/dev/null || date -d @${SOURCE_DATE_EPOCH}`
++fi
+ AC_SUBST(BUILD_TIMESTAMP)
+ AC_DEFINE_UNQUOTED(BUILD_TIMESTAMP, "$BUILD_TIMESTAMP",
+ [The time this package was configured for a build])