diff --git a/src/configure b/src/configure
index 3828180454a896c9dcbe3073b6c7407ab831dbda..d155327fe3ddd6c4320e586d5cefc3e924af4153 100755
--- a/src/configure
+++ b/src/configure
@@ -1067,12 +1067,12 @@ INSTLOPTS="-m 444"
 INSTL_EXE_OPTS="-m 555"
 INSTL_LIB_OPTS="-m 664"
 
-if test "`basename $INSTALL`." = "install."
-then
+case "`basename $INSTALL`" in
+ install|installbsd)
 	INSTLOPTS="-c $INSTLOPTS"
 	INSTL_EXE_OPTS="-c $INSTL_EXE_OPTS"
-	INSTL_LIB_OPTS="-c $INSTL_LIB_OPTS"
-fi
+	INSTL_LIB_OPTS="-c $INSTL_LIB_OPTS";;
+esac
 
 echo "- Using $INSTALL"
 
diff --git a/src/configure.in b/src/configure.in
index ec8d3a00df013bac134d0ce37da7a87375a72ce3..7ea79d6f0bdb8077cd13b35fd4c367183fc6a000 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -269,12 +269,12 @@ INSTLOPTS="-m 444"
 INSTL_EXE_OPTS="-m 555"
 INSTL_LIB_OPTS="-m 664"
 
-if test "`basename $INSTALL`." = "install."
-then
+case "`basename $INSTALL`" in
+ install|installbsd)
 	INSTLOPTS="-c $INSTLOPTS"
 	INSTL_EXE_OPTS="-c $INSTL_EXE_OPTS"
-	INSTL_LIB_OPTS="-c $INSTL_LIB_OPTS"
-fi
+	INSTL_LIB_OPTS="-c $INSTL_LIB_OPTS";;
+esac
 
 echo "- Using $INSTALL"
 AC_SUBST(INSTALL)