---
 devtools/M4/header.m4 |    4 ++++
 1 file changed, 4 insertions(+)

--- devtools/M4/header.m4
+++ devtools/M4/header.m4	2016-04-14 07:36:39.329213548 +0000
@@ -31,7 +31,11 @@ define(`confSHAREDLIB_EXT', `.so')
 define(`confSITECONFIG', `site.config')
 define(`confBUILDBIN', `${SRCDIR}/devtools/bin')
 define(`confRANLIB', `echo')
+define(`confSHAREDLIB_EXT', `.so')
 define(`PUSHDIVERT', `pushdef(`__D__', divnum)divert($1)')
 define(`POPDIVERT', `divert(__D__)popdef(`__D__')')
 define(`APPENDDEF', `define(`$1', ifdef(`$1', `$1 $2', `$2'))')
 define(`PREPENDDEF', `define(`$1', ifdef(`$1', `$2 $1', `$2'))')
+define(`REPLACEDEF', `define(`_$1', `esyscmd(`x='$1`;echo -n ${x//$2/$3}')')dnl
+define(`$1', _$1)dnl
+undefine(`_$1')')