Removes ancient Autotools cruft (HDFGroup#790)

configure.ac

@@ -476,15 +476,9 @@ esac
 ## Data types and their sizes.
 ##
 AC_TYPE_OFF_T
-AC_CHECK_TYPE([size_t], [],
-        [AC_DEFINE_UNQUOTED([size_t], [unsigned long],
-                [Define to `unsigned long' if <sys/types.h> does not define.])])
 AC_CHECK_TYPE([ssize_t], [],
         [AC_DEFINE_UNQUOTED([ssize_t], [long],
                 [Define to `long' if <sys/types.h> does not define.])])
-AC_CHECK_TYPE([ptrdiff_t], [],
-        [AC_DEFINE_UNQUOTED([ptrdiff_t], [long],
-                [Define to `long' if <sys/types.h> does not define.])])
 AC_C_BIGENDIAN
 AC_CHECK_SIZEOF([char])
 AC_CHECK_SIZEOF([short])
@@ -1229,8 +1223,6 @@ AC_CHECK_LIB([dl], [dlopen])
 ## ----------------------------------------------------------------------
 ## Check for system header files.
 ##
-AC_HEADER_STDC
-AC_HEADER_TIME
 
 ## Unix
 AC_CHECK_HEADERS([sys/resource.h sys/time.h unistd.h sys/ioctl.h sys/stat.h])
@@ -2022,8 +2014,6 @@ AC_CHECK_FUNCS([sigtimedwait timespeccmp])
 ## ----------------------------------------------------------------------
 ## Check compiler characteristics
 ##
-AC_C_CONST
-
 AC_MSG_CHECKING([for __attribute__ extension])
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[int __attribute__((unused)) x]])],
                [AC_DEFINE([HAVE_ATTRIBUTE], [1],

src/H5private.h

@@ -38,11 +38,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 
 /* POSIX headers */
 #ifdef H5_HAVE_UNISTD_H
 #include <pwd.h>
 #include <unistd.h>
+#include <sys/time.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #endif
@@ -61,25 +63,6 @@
 #include <sys/stat.h>
 #endif
 
-/*
- * If a program may include both `time.h' and `sys/time.h' then
- * TIME_WITH_SYS_TIME is defined (see AC_HEADER_TIME in configure.ac).
- * On some older systems, `sys/time.h' includes `time.h' but `time.h' is not
- * protected against multiple inclusion, so programs should not explicitly
- * include both files. This macro is useful in programs that use, for example,
- * `struct timeval' or `struct timezone' as well as `struct tm'.  It is best
- * used in conjunction with `HAVE_SYS_TIME_H', whose existence is checked
- * by `AC_CHECK_HEADERS(sys/time.h)' in configure.ac.
- */
-#if defined(H5_TIME_WITH_SYS_TIME)
-#include <sys/time.h>
-#include <time.h>
-#elif defined(H5_HAVE_SYS_TIME_H)
-#include <sys/time.h>
-#else
-#include <time.h>
-#endif
-
 /*
  * Longjumps are used to detect alignment constrants
  */