Add setenv, unsetenv.

[gnulib.git] / m4 / getloadavg.m4

diff --git a/m4/getloadavg.m4 b/m4/getloadavg.m4
index d0ab2b8..ff8cf30 100644 (file)
--- a/m4/getloadavg.m4
+++ b/m4/getloadavg.m4
@@ -1,4 +1,4 @@
-#serial 7
+#serial 9
 
 # A replacement for autoconf's macro by the same name.  This version
 # accepts an optional argument specifying the name of the $srcdir-relative
@@ -12,10 +12,13 @@ undefine([AC_FUNC_GETLOADAVG])
 AC_DEFUN([AC_FUNC_GETLOADAVG],
 [ac_have_func=no # yes means we've found a way to get the load average.
 
+AC_CHECK_HEADERS(locale.h unistd.h mach/mach.h fcntl.h)
+AC_CHECK_FUNCS(setlocale)
+
 # By default, expect to find getloadavg.c in $srcdir/.
 ac_lib_dir_getloadavg=$srcdir
 # But if there's an argument, DIR, expect to find getloadavg.c in $srcdir/DIR.
-ifval([$1], [ac_lib_dir_getloadavg=$srcdir/$1])
+m4_ifval([$1], [ac_lib_dir_getloadavg=$srcdir/$1])
 # Make sure getloadavg.c is where it belongs, at ./configure-time.
 test -f $ac_lib_dir_getloadavg/getloadavg.c \
   || AC_MSG_ERROR([getloadavg.c is not in $ac_lib_dir_getloadavg])
@@ -99,5 +102,7 @@ if test "x$ac_save_LIBS" = x; then
 else
   GETLOADAVG_LIBS=`echo "$LIBS" | sed "s!$ac_save_LIBS!!"`
 fi
+LIBS=$ac_save_LIBS
+
 AC_SUBST(GETLOADAVG_LIBS)dnl
 ])# AC_FUNC_GETLOADAVG