X-Git-Url: https://git.cworth.org/git?p=tar;a=blobdiff_plain;f=m4%2Ffdopendir.m4;fp=m4%2Ffdopendir.m4;h=0908e1f8c9fed45b2b26eb06b815c5f0551c8c54;hp=7282d4b063f187a215ae389370dac2f3c139cbde;hb=b414e25de8ca49d7567a92c203d431383ec57c83;hpb=29ece34f44a27750bbfd76154ad9882580453dc7

diff --git a/m4/fdopendir.m4 b/m4/fdopendir.m4
index 7282d4b..0908e1f 100644
--- a/m4/fdopendir.m4
+++ b/m4/fdopendir.m4
@@ -1,4 +1,4 @@
-# serial 3
+# serial 4
 # See if we need to provide fdopendir.
 
 dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
@@ -11,6 +11,10 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_FDOPENDIR],
 [
   AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+  dnl FreeBSD 7.3 has the function, but failed to declare it.
+  AC_CHECK_DECLS([fdopendir], [], [HAVE_DECL_FDOPENDIR=0], [[
+#include <dirent.h>
+    ]])
   AC_CHECK_FUNCS_ONCE([fdopendir])
   if test $ac_cv_func_fdopendir = no; then
     AC_LIBOBJ([openat-proc])
@@ -23,6 +27,9 @@ AC_DEFUN([gl_FUNC_FDOPENDIR],
       [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
 #include <dirent.h>
 #include <fcntl.h>
+#if !HAVE_DECL_FDOPENDIR
+extern DIR *fdopendir (int);
+#endif
 ]], [int fd = open ("conftest.c", O_RDONLY);
      if (fd < 0) return 2;
      return !!fdopendir (fd);])],