Index: m4/sharedlib.m4
==================================================================
--- m4/sharedlib.m4
+++ m4/sharedlib.m4
@@ -51,11 +51,11 @@
 			;;
 		*-sun-* | *-openbsd-* | *-mirbsd-*)
 			AC_MSG_RESULT(Solaris)
 			LIB_CPPFLAGS='-DPIC'
 			LIB_CFLAGS='-fPIC'
-			LIB_LDFLAGS='-shared -fPIC'
+			LIB_LDFLAGS='-shared -fPIC -Wl,-soname=${LIB}.${LIB_MAJOR}.${LIB_MINOR}'
 			LIB_PREFIX='lib'
 			LIB_SUFFIX='.so'
 			PLUGIN_CPPFLAGS='-DPIC'
 			PLUGIN_CFLAGS='-fPIC'
 			PLUGIN_LDFLAGS='-shared -fPIC'
@@ -79,11 +79,11 @@
 			;;
 		*)
 			AC_MSG_RESULT(POSIX)
 			LIB_CPPFLAGS='-DPIC'
 			LIB_CFLAGS='-fPIC'
-			LIB_LDFLAGS='-shared -fPIC'
+			LIB_LDFLAGS='-shared -fPIC -Wl,-soname=${LIB}.${LIB_MAJOR}.${LIB_MINOR}.0'
 			LIB_PREFIX='lib'
 			LIB_SUFFIX='.so'
 			PLUGIN_CPPFLAGS='-DPIC'
 			PLUGIN_CFLAGS='-fPIC'
 			PLUGIN_LDFLAGS='-shared -fPIC'