[SCM] GNU Autoconf source repository branch, master, updated. v2.63-86-gb218c04

[Jim Meyering]

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- Log -----------------------------------------------------------------
commit b218c046a6c28a4bf5117e3202dbfec13a327fb2
Author: Jim Meyering <address@hidden>
Date:   Wed Oct 22 17:25:46 2008 +0200

    AC_FUNC_GETGROUPS: always define $ac_cv_func_getgroups_works
    
    * lib/autoconf/functions.m4 (AC_FUNC_GETGROUPS): Always define
    the shell variable, $ac_cv_func_getgroups_works.  Otherwise, if
    it is set to "yes" in the environment and configure is run on
    a system like mingw that lacks the getgroups function, it would
    mistakenly define HAVE_GETGROUPS.  Reported by Simon Josefsson in
    <http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/15354>.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                 |   10 ++++++++++
 lib/autoconf/functions.m4 |    5 ++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index bdc3244..e0f3f26 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2008-10-22  Jim Meyering  <address@hidden>
+
+       AC_FUNC_GETGROUPS: always define $ac_cv_func_getgroups_works
+       * lib/autoconf/functions.m4 (AC_FUNC_GETGROUPS): Always define
+       the shell variable, $ac_cv_func_getgroups_works.  Otherwise, if
+       it is set to "yes" in the environment and configure is run on
+       a system like mingw that lacks the getgroups function, it would
+       mistakenly define HAVE_GETGROUPS.  Reported by Simon Josefsson in
+       <http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/15354>.
+
 2008-10-22  Paolo Bonzini  <address@hidden>
        and Eric Blake  <address@hidden>
 
diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index 14fe315..3999134 100644
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -619,6 +619,7 @@ if test $ac_cv_func_getgroups = no; then
   AC_CHECK_LIB(bsd, getgroups, [GETGROUPS_LIB=-lbsd])
 fi
 
+ac_cv_func_getgroups_works=no
 # Run the program to test the functionality of the system-supplied
 # getgroups function only if there is such a function.
 if test $ac_cv_func_getgroups = yes; then
@@ -626,9 +627,7 @@ if test $ac_cv_func_getgroups = yes; then
    [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
       [[/* On Ultrix 4.3, getgroups (0, 0) always fails.  */
        return getgroups (0, 0) == -1;]])],
-                 [ac_cv_func_getgroups_works=yes],
-                 [ac_cv_func_getgroups_works=no],
-                 [ac_cv_func_getgroups_works=no])
+                 [ac_cv_func_getgroups_works=yes])
    ])
   if test $ac_cv_func_getgroups_works = yes; then
     AC_DEFINE(HAVE_GETGROUPS, 1,


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