filenamecat: split into filenamecat-lgpl

[gnulib.git] / m4 / sys_time_h.m4

diff --git a/m4/sys_time_h.m4 b/m4/sys_time_h.m4
index 4387cd8..13ac576 100644 (file)
--- a/m4/sys_time_h.m4
+++ b/m4/sys_time_h.m4
@@ -9,18 +9,22 @@
 
 AC_DEFUN([gl_HEADER_SYS_TIME_H],
 [
+  dnl Use AC_REQUIRE here, so that the REPLACE_GETTIMEOFDAY=0 statement
+  dnl below is expanded once only, before all REPLACE_GETTIMEOFDAY=1
+  dnl statements that occur in other macros.
+  AC_REQUIRE([gl_HEADER_SYS_TIME_H_BODY])
+])
+
+AC_DEFUN([gl_HEADER_SYS_TIME_H_BODY],
+[
   AC_REQUIRE([AC_C_RESTRICT])
-  AC_CHECK_HEADERS_ONCE([sys/time.h])
+  gl_CHECK_NEXT_HEADERS([sys/time.h])
 
   if test $ac_cv_header_sys_time_h = yes; then
-    gl_ABSOLUTE_HEADER([sys/time.h])
-    ABSOLUTE_SYS_TIME_H=\"$gl_cv_absolute_sys_time_h\"
     HAVE_SYS_TIME_H=1
   else
-    ABSOLUTE_SYS_TIME_H=\"no/such/file/sys/time.h\"
     HAVE_SYS_TIME_H=0
   fi
-  AC_SUBST([ABSOLUTE_SYS_TIME_H])
   AC_SUBST([HAVE_SYS_TIME_H])
 
   AC_CACHE_CHECK([for struct timeval], [gl_cv_sys_struct_timeval],
@@ -42,8 +46,12 @@ AC_DEFUN([gl_HEADER_SYS_TIME_H],
   AC_SUBST([HAVE_STRUCT_TIMEVAL])
 
   dnl Assume POSIX behavior unless another module says otherwise.
-  HAVE_GETTIMEOFDAY_POSIX_SIGNATURE=1
-  AC_SUBST([HAVE_GETTIMEOFDAY_POSIX_SIGNATURE])
-  GETTIMEOFDAY_CLOBBERS_LOCALTIME=0
-  AC_SUBST([GETTIMEOFDAY_CLOBBERS_LOCALTIME])
+  REPLACE_GETTIMEOFDAY=0
+  AC_SUBST([REPLACE_GETTIMEOFDAY])
+  if test $HAVE_SYS_TIME_H = 0 || test $HAVE_STRUCT_TIMEVAL = 0; then
+    SYS_TIME_H=sys/time.h
+  else
+    SYS_TIME_H=
+  fi
+  AC_SUBST([SYS_TIME_H])
 ])