Clarify copyright wording.

diff --git a/m4/progtest.m4 b/m4/progtest.m4
index aa3c2180941807aca5c94581fb5307e85ab994fb..e467ec1ce5d6f209fc7fc83bbbed37b210bec9e0 100644 (file)
--- a/m4/progtest.m4
+++ b/m4/progtest.m4
@@ -6,7 +6,7 @@
 # but which still want to provide support for the GNU gettext functionality.
 # Please note that the actual code is *not* freely available.
 
-# serial 1
+# serial 2
 
 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
 dnl   TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
@@ -38,7 +38,7 @@ ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
   ;;
 esac])dnl
 $1="$ac_cv_path_$1"
-if test -n "[$]$1"; then
+if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
   AC_MSG_RESULT([$]$1)
 else
   AC_MSG_RESULT(no)