Merge branch 'upstream' into dfsg-orig

[tar] / m4 / progtest.m4

diff --git a/m4/progtest.m4 b/m4/progtest.m4
index 2d804ac99d7087a595be309ce76de5c98f89ce92..9ffa5c0202ccbde432409c50e5d3ff3c9e7ccb1b 100644 (file)
--- a/m4/progtest.m4
+++ b/m4/progtest.m4
@@ -1,4 +1,4 @@
-# progtest.m4 serial 6 (gettext-0.18)
+# progtest.m4 serial 7 (gettext-0.18.2)
 dnl Copyright (C) 1996-2003, 2005, 2008-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -27,15 +27,14 @@ AC_DEFUN([AM_PATH_PROG_WITH_TEST],
 # Prepare PATH_SEPARATOR.
 # The user is always right.
 if test "${PATH_SEPARATOR+set}" != set; then
-  echo "#! /bin/sh" >conf$$.sh
-  echo  "exit 0"   >>conf$$.sh
-  chmod +x conf$$.sh
-  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
-    PATH_SEPARATOR=';'
-  else
-    PATH_SEPARATOR=:
-  fi
-  rm -f conf$$.sh
+  # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
+  # contains only /bin. Note that ksh looks also at the FPATH variable,
+  # so we have to set that as well for the test.
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+    && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+           || PATH_SEPARATOR=';'
+       }
 fi
 
 # Find out how to test for executable files. Don't use a zero-byte file,