* data/bison.c++: Fix m4 quoting in comments.

[bison.git] / m4 / progtest.m4

diff --git a/m4/progtest.m4 b/m4/progtest.m4
index aa3c2180941807aca5c94581fb5307e85ab994fb..35dc3da1f76e89bffc4262c400b664c57204ca76 100644 (file)
--- a/m4/progtest.m4
+++ b/m4/progtest.m4
@@ -2,11 +2,15 @@
 # Ulrich Drepper <drepper@cygnus.com>, 1996.
 #
 # This file can be copied and used freely without restrictions.  It can
-# be used in projects which are not available under the GNU Public License
-# but which still want to provide support for the GNU gettext functionality.
-# Please note that the actual code is *not* freely available.
+# be used in projects which are not available under the GNU General Public
+# License or the GNU Library General Public License but which still want
+# to provide support for the GNU gettext functionality.
+# Please note that the actual code of the GNU gettext library is covered
+# by the GNU Library General Public License, and the rest of the GNU
+# gettext package package is covered by the GNU General Public License.
+# They are *not* in the public domain.
 
-# 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 +42,7 @@ 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)