Index: m4/sharedlib.m4
==================================================================
--- m4/sharedlib.m4
+++ m4/sharedlib.m4
@@ -60,11 +60,11 @@
 			LIB_SUFFIX='.so'
 			PLUGIN_CPPFLAGS='-DPIC'
 			PLUGIN_CFLAGS='-fPIC'
 			PLUGIN_LDFLAGS='-shared -fPIC'
 			PLUGIN_SUFFIX='.so'
-			INSTALL_LIB='${INSTALL} -m 755 $$i ${DESTDIR}${libdir}/$$i.${LIB_MAJOR}.${LIB_MINOR} && ${LN_S} -f $$i.${LIB_MAJOR}.${LIB_MINOR} ${DESTDIR}${libdir}/$$i'
+			INSTALL_LIB='${INSTALL} -m 755 $$i ${DESTDIR}${libdir}/$$i.${LIB_MAJOR}.${LIB_MINOR} && rm -f ${DESTDIR}${libdir}/$$i && ${LN_S} $$i.${LIB_MAJOR}.${LIB_MINOR} ${DESTDIR}${libdir}/$$i'
 			UNINSTALL_LIB='rm -f ${DESTDIR}${libdir}/$$i ${DESTDIR}${libdir}/$$i.${LIB_MAJOR}.${LIB_MINOR}'
 			CLEAN_LIB=''
 			;;
 		*-*-mingw32 | *-*-cygwin)
 			AC_MSG_RESULT(Win32)