--- libverto-0.3.1/configure.ac
+++ libverto-0.3.1/configure.ac
@@ -91,22 +91,22 @@ AC_ARG_WITH([tevent],
 
 # Ensure that if a builtin is chosen only one is built
 BUILTIN_MODULE=
-if test x$WITH_GLIB == xbuiltin; then
+if test x$WITH_GLIB = xbuiltin; then
   BUILTIN_MODULE=glib
   WITH_LIBEV=no
   WITH_LIBEVENT=no
   WITH_TEVENT=no
-elif test x$WITH_LIBEV == xbuiltin; then
+elif test x$WITH_LIBEV = xbuiltin; then
   BUILTIN_MODULE=libev
   WITH_LIBGLIB=no
   WITH_LIBEVENT=no
   WITH_TEVENT=no
-elif test x$WITH_LIBEVENT == xbuiltin; then
+elif test x$WITH_LIBEVENT = xbuiltin; then
   BUILTIN_MODULE=libevent
   WITH_LIBGLIB=no
   WITH_LIBEV=no
   WITH_TEVENT=no
-elif test x$WITH_TEVENT == xbuiltin; then
+elif test x$WITH_TEVENT = xbuiltin; then
   BUILTIN_MODULE=tevent
   WITH_GLIB=no
   WITH_LIBEV=no
@@ -118,29 +118,29 @@ if test x$BUILTIN_MODULE != x; then
 fi
 
 # Ensure that there is only one default (convert duplicate default to yes)
-if test x$WITH_GLIB == xdefault; then
+if test x$WITH_GLIB = xdefault; then
   AC_DEFINE([DEFUALT_MODULE], [glib])
-  test x$WITH_LIBEV    == xdefault && WITH_LIBEV=yes
-  test x$WITH_LIBEVENT == xdefault && WITH_LIBEVENT=yes
-  test x$WITH_TEVENT   == xdefault && WITH_TEVENT=yes
+  test x$WITH_LIBEV    = xdefault && WITH_LIBEV=yes
+  test x$WITH_LIBEVENT = xdefault && WITH_LIBEVENT=yes
+  test x$WITH_TEVENT   = xdefault && WITH_TEVENT=yes
 fi
-if test x$WITH_LIBEV == xdefault; then
+if test x$WITH_LIBEV = xdefault; then
   AC_DEFINE([DEFUALT_MODULE], [libev])
-  test x$WITH_LIBGLIB  == xdefault && WITH_GLIB=yes
-  test x$WITH_LIBEVENT == xdefault && WITH_LIBEVENT=yes
-  test x$WITH_TEVENT   == xdefault && WITH_TEVENT=yes
+  test x$WITH_LIBGLIB  = xdefault && WITH_GLIB=yes
+  test x$WITH_LIBEVENT = xdefault && WITH_LIBEVENT=yes
+  test x$WITH_TEVENT   = xdefault && WITH_TEVENT=yes
 fi
-if test x$WITH_LIBEVENT == xdefault; then
+if test x$WITH_LIBEVENT = xdefault; then
   AC_DEFINE([DEFUALT_MODULE], [libevent])
-  test x$WITH_GLIB     == xdefault && WITH_GLIB=yes
-  test x$WITH_LIBEV    == xdefault && WITH_LIBEV=yes
-  test x$WITH_TEVENT   == xdefault && WITH_TEVENT=yes
+  test x$WITH_GLIB     = xdefault && WITH_GLIB=yes
+  test x$WITH_LIBEV    = xdefault && WITH_LIBEV=yes
+  test x$WITH_TEVENT   = xdefault && WITH_TEVENT=yes
 fi
-if test x$WITH_TEVENT == xdefault; then
+if test x$WITH_TEVENT = xdefault; then
   AC_DEFINE([DEFUALT_MODULE], [tevent])
-  test x$WITH_GLIB     == xdefault && WITH_GLIB=yes
-  test x$WITH_LIBEV    == xdefault && WITH_LIBEV=yes
-  test x$WITH_LIBEVENT == xdefault && WITH_LIBEVENT=yes
+  test x$WITH_GLIB     = xdefault && WITH_GLIB=yes
+  test x$WITH_LIBEV    = xdefault && WITH_LIBEV=yes
+  test x$WITH_LIBEVENT = xdefault && WITH_LIBEVENT=yes
 fi
 
 BUILD_GLIB=no
@@ -151,7 +151,7 @@ BUILD_TEVENT=no
 if test x$WITH_GLIB != xno; then
   PKG_CHECK_MODULES([glib], [glib-2.0], [BUILD_GLIB=$WITH_GLIB],
                     [test x$WITH_GLIB != xauto && AC_MSG_ERROR("glib not found")])
-  if test x$BUILD_GLIB == xauto; then
+  if test x$BUILD_GLIB = xauto; then
     BUILD_GLIB=yes
   fi
 fi
@@ -165,7 +165,7 @@ if test x$WITH_LIBEV != xno; then
     ),
     [test x$WITH_LIBEV != xauto && AC_MSG_ERROR("ev.h not found")]
   )
-  if test x$BUILD_LIBEV == xauto; then
+  if test x$BUILD_LIBEV = xauto; then
     BUILD_LIBEV=yes
   fi
 fi
@@ -173,7 +173,7 @@ fi
 if test x$WITH_LIBEVENT != xno; then
   PKG_CHECK_MODULES([libevent], [libevent >= 2.0], [BUILD_LIBEVENT=$WITH_LIBEVENT],
                     [test x$WITH_LIBEVENT != xauto && AC_MSG_ERROR("libevent not found")])
-  if test x$BUILD_LIBEVENT == xauto; then
+  if test x$BUILD_LIBEVENT = xauto; then
     BUILD_LIBEVENT=yes
   fi
 fi
@@ -181,19 +181,19 @@ fi
 if test x$WITH_TEVENT != xno; then
   PKG_CHECK_MODULES([tevent], [tevent], [BUILD_TEVENT=$WITH_TEVENT],
                     [test x$WITH_TEVENT != xauto && AC_MSG_ERROR("tevent not found")])
-  if test x$BUILD_TEVENT == xauto; then
+  if test x$BUILD_TEVENT = xauto; then
     BUILD_TEVENT=yes
   fi
 fi
 
-AM_CONDITIONAL([MODULE_GLIB],      [test x$BUILTIN_MODULE == x && test x$BUILD_GLIB     != xno])
-AM_CONDITIONAL([MODULE_LIBEV],     [test x$BUILTIN_MODULE == x && test x$BUILD_LIBEV    != xno])
-AM_CONDITIONAL([MODULE_LIBEVENT],  [test x$BUILTIN_MODULE == x && test x$BUILD_LIBEVENT != xno])
-AM_CONDITIONAL([MODULE_TEVENT],    [test x$BUILTIN_MODULE == x && test x$BUILD_TEVENT   != xno])
-AM_CONDITIONAL([BUILTIN_GLIB],     [test x$BUILTIN_MODULE == xglib])
-AM_CONDITIONAL([BUILTIN_LIBEV],    [test x$BUILTIN_MODULE == xlibev])
-AM_CONDITIONAL([BUILTIN_LIBEVENT], [test x$BUILTIN_MODULE == xlibevent])
-AM_CONDITIONAL([BUILTIN_TEVENT],   [test x$BUILTIN_MODULE == xtevent])
+AM_CONDITIONAL([MODULE_GLIB],      [test x$BUILTIN_MODULE = x && test x$BUILD_GLIB     != xno])
+AM_CONDITIONAL([MODULE_LIBEV],     [test x$BUILTIN_MODULE = x && test x$BUILD_LIBEV    != xno])
+AM_CONDITIONAL([MODULE_LIBEVENT],  [test x$BUILTIN_MODULE = x && test x$BUILD_LIBEVENT != xno])
+AM_CONDITIONAL([MODULE_TEVENT],    [test x$BUILTIN_MODULE = x && test x$BUILD_TEVENT   != xno])
+AM_CONDITIONAL([BUILTIN_GLIB],     [test x$BUILTIN_MODULE = xglib])
+AM_CONDITIONAL([BUILTIN_LIBEV],    [test x$BUILTIN_MODULE = xlibev])
+AM_CONDITIONAL([BUILTIN_LIBEVENT], [test x$BUILTIN_MODULE = xlibevent])
+AM_CONDITIONAL([BUILTIN_TEVENT],   [test x$BUILTIN_MODULE = xtevent])
 
 AC_MSG_NOTICE()
 AC_MSG_NOTICE([BUILD CONFIGURATION])