gethrxtime: Move AC_LIBOBJ invocations to module description.

* m4/gethrxtime.m4 (gl_PREREQ_GETHRXTIME): Move code that determines
LIB_GETHRXTIME from here...
(gl_GETHRXTIME): ... to here. Move AC_LIBOBJ and gl_PREREQ_GETHRXTIME
invocations from here...
* modules/gethrxtime (configure.ac): ... to here.

diff --git a/ChangeLog b/ChangeLog
index cd939d7..c1bb815 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2011-05-08  Bruno Haible  <bruno@clisp.org>
 
+       gethrxtime: Move AC_LIBOBJ invocations to module description.
+       * m4/gethrxtime.m4 (gl_PREREQ_GETHRXTIME): Move code that determines
+       LIB_GETHRXTIME from here...
+       (gl_GETHRXTIME): ... to here. Move AC_LIBOBJ and gl_PREREQ_GETHRXTIME
+       invocations from here...
+       * modules/gethrxtime (configure.ac): ... to here.
+
+2011-05-08  Bruno Haible  <bruno@clisp.org>
+
        gethostname: Move AC_LIBOBJ invocations to module description.
        * m4/gethostname.m4 (gl_FUNC_GETHOSTNAME): Move AC_LIBOBJ and
        gl_PREREQ_GETHOSTNAME invocations from here...

diff --git a/m4/gethrxtime.m4 b/m4/gethrxtime.m4
index ef5e610..76979c1 100644 (file)
--- a/m4/gethrxtime.m4
+++ b/m4/gethrxtime.m4
@@ -1,4 +1,4 @@
-# gethrxtime.m4 serial 9
+# gethrxtime.m4 serial 10
 dnl Copyright (C) 2005-2006, 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -13,12 +13,29 @@ AC_DEFUN([gl_GETHRXTIME],
   AC_REQUIRE([gl_XTIME])
   AC_CHECK_DECLS([gethrtime], [], [], [#include <time.h>])
   LIB_GETHRXTIME=
-  case $ac_cv_have_decl_gethrtime,$gl_cv_arithmetic_hrtime_t in
-  yes,yes) ;;
-  *)
-    AC_LIBOBJ([gethrxtime])
-    gl_PREREQ_GETHRXTIME;;
-  esac
+  if test $ac_cv_have_decl_gethrtime = no \
+     || test $gl_cv_arithmetic_hrtime_t = no; then
+    dnl Find libraries needed to link lib/gethrxtime.c.
+    AC_REQUIRE([gl_CLOCK_TIME])
+    AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+    AC_CHECK_FUNCS_ONCE([nanouptime])
+    if test $ac_cv_func_nanouptime != yes; then
+      AC_CACHE_CHECK([whether CLOCK_MONOTONIC or CLOCK_REALTIME is defined],
+        [gl_cv_have_clock_gettime_macro],
+        [AC_EGREP_CPP([have_clock_gettime_macro],
+          [
+#          include <time.h>
+#          if defined CLOCK_MONOTONIC || defined CLOCK_REALTIME
+            have_clock_gettime_macro
+#          endif
+          ],
+          [gl_cv_have_clock_gettime_macro=yes],
+          [gl_cv_have_clock_gettime_macro=no])])
+      if test $gl_cv_have_clock_gettime_macro = yes; then
+        LIB_GETHRXTIME=$LIB_CLOCK_GETTIME
+      fi
+    fi
+  fi
   AC_SUBST([LIB_GETHRXTIME])
 ])
 
@@ -51,24 +68,6 @@ AC_DEFUN([gl_XTIME],
 # Prerequisites of lib/gethrxtime.c.
 AC_DEFUN([gl_PREREQ_GETHRXTIME],
 [
-  AC_REQUIRE([gl_CLOCK_TIME])
-  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-  AC_CHECK_FUNCS_ONCE([microuptime nanouptime])
-
-  if test $ac_cv_func_nanouptime != yes; then
-    AC_CACHE_CHECK([whether CLOCK_MONOTONIC or CLOCK_REALTIME is defined],
-      gl_cv_have_clock_gettime_macro,
-      [AC_EGREP_CPP([have_clock_gettime_macro],
-        [
-#        include <time.h>
-#        if defined CLOCK_MONOTONIC || defined CLOCK_REALTIME
-          have_clock_gettime_macro
-#        endif
-        ],
-        gl_cv_have_clock_gettime_macro=yes,
-        gl_cv_have_clock_gettime_macro=no)])
-    if test $gl_cv_have_clock_gettime_macro = yes; then
-      LIB_GETHRXTIME=$LIB_CLOCK_GETTIME
-    fi
-  fi
+  AC_CHECK_FUNCS_ONCE([microuptime])
+  :
 ])

diff --git a/modules/gethrxtime b/modules/gethrxtime
index ab9507b..916bab1 100644 (file)
--- a/modules/gethrxtime
+++ b/modules/gethrxtime
@@ -16,6 +16,10 @@ sys_time
 
 configure.ac:
 gl_GETHRXTIME
+if test $ac_cv_have_decl_gethrtime = no || test $gl_cv_arithmetic_hrtime_t = no; then
+  AC_LIBOBJ([gethrxtime])
+  gl_PREREQ_GETHRXTIME
+fi
 
 Makefile.am: