Fix underquoting of AC_LANG_PROGRAM arguments.

[gnulib.git] / m4 / physmem.m4

diff --git a/m4/physmem.m4 b/m4/physmem.m4
index 900b29b..b5001e1 100644 (file)
--- a/m4/physmem.m4
+++ b/m4/physmem.m4
@@ -1,5 +1,5 @@
-# physmem.m4 serial 4
-dnl Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
+# physmem.m4 serial 8
+dnl Copyright (C) 2002-2003, 2005-2006, 2008 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -12,7 +12,8 @@ AC_DEFUN([gl_SYS__SYSTEM_CONFIGURATION],
     [AC_LINK_IFELSE([AC_LANG_PROGRAM(
                      [[#include <sys/systemcfg.h>
                      ]],
-                     [double x = _system_configuration.physmem;])],
+                     [[double x = _system_configuration.physmem;
+                       if (x > 0.0) return 0;]])],
       [gl_cv_var__system_configuration=yes],
       [gl_cv_var__system_configuration=no])])
 
@@ -26,11 +27,9 @@ AC_DEFUN([gl_SYS__SYSTEM_CONFIGURATION],
 
 AC_DEFUN([gl_PHYSMEM],
 [
-  AC_LIBSOURCES([physmem.c, physmem.h])
   AC_LIBOBJ([physmem])
 
   # Prerequisites of lib/physmem.c.
-  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_CHECK_HEADERS([sys/pstat.h sys/sysmp.h sys/sysinfo.h \
     machine/hal_sysinfo.h sys/table.h sys/param.h sys/sysctl.h \
     sys/systemcfg.h],,, [AC_INCLUDES_DEFAULT])