* configure.in (ftruncate): check if available.

* file.c (rb_file_truncate): check if ftruncate instead of truncate.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15477 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Fri Feb 15 02:42:25 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (ftruncate): check if available.
+
+	* file.c (rb_file_truncate): check if ftruncate instead of truncate.
+
 Fri Feb 15 02:40:54 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in (sigsetmask): check when signal semantics is not POSIX.

configure.in

@@ -652,8 +652,8 @@ AC_REPLACE_FUNCS(dup2 memmove strerror strftime\
 		 isnan finite isinf hypot acosh erf tgamma lgamma_r cbrt \
                  strlcpy strlcat)
 AC_CHECK_FUNCS(fmod killpg wait4 waitpid fork spawnv syscall chroot fsync getcwd eaccess\
-	      truncate chsize times utimes utimensat fcntl lockf lstat\
-              link symlink readlink\
+	      truncate ftruncate chsize times utimes utimensat fcntl lockf lstat\
+	      link symlink readlink\
 	      setitimer setruid seteuid setreuid setresuid setproctitle socketpair\
 	      setrgid setegid setregid setresgid issetugid pause lchown lchmod\
 	      getpgrp setpgrp getpgid setpgid initgroups getgroups setgroups\

file.c

@@ -3173,7 +3173,7 @@ rb_file_truncate(VALUE obj, VALUE len)
 	rb_raise(rb_eIOError, "not opened for writing");
     }
     rb_io_flush(obj);
-#ifdef HAVE_TRUNCATE
+#ifdef HAVE_FTRUNCATE
     if (ftruncate(fptr->fd, pos) < 0)
 	rb_sys_fail(fptr->path);
 #else