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(GL_FUNC_READDIR): Change name to have GL_ (not jm_)

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prefix.  Adjust cache variables similarly.  Create 500 rather than
just 300 files, to exercise bug on Darwin6.5, too.
This commit is contained in:
Paul Eggert
2003-08-16 09:37:15 +00:00
parent 6e02d3017f
commit 8d94f29880
1 changed files with 17 additions and 14 deletions
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m4/readdir.m4
+17 -14
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@@ -1,22 +1,25 @@
#serial 5
#serial 6
dnl SunOS's readdir is broken in such a way that rm.c has to add extra code
dnl to test whether a NULL return value really means there are no more files
dnl in the directory.
dnl
dnl Detect the problem by creating a directory containing 300 files (254 not
dnl counting . and .. is the minimum) and see if a loop doing `readdir; unlink'
dnl removes all of them.
dnl And the rm from coreutils-5.0 exposes a similar problem when there
dnl are 338 or more files in a directory on a Darwin-6.5 system
dnl
dnl Detect the problem by creating a directory containing 500 files (254 not
dnl counting . and .. is the minimum for SunOS, 338 for Darwin) and see
dnl if a loop doing `readdir; unlink' removes all of them.
dnl
dnl Define HAVE_WORKING_READDIR if readdir does *not* have this problem.
dnl Written by Jim Meyering.
AC_DEFUN([jm_FUNC_READDIR],
AC_DEFUN([GL_FUNC_READDIR],
[dnl
AC_REQUIRE([AC_HEADER_DIRENT])
AC_CHECK_HEADERS_ONCE(string.h)
AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
AC_CACHE_CHECK([for working readdir], gl_cv_func_working_readdir,
[dnl
# Arrange for deletion of the temporary directory this test creates, in
# case the test itself fails to delete everything -- as happens on Sunos.
@@ -54,16 +57,16 @@ AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
# undef mkdir
static void
create_300_file_dir (const char *dir)
create_N_file_dir (const char *dir, size_t n_files)
{
int i;
unsigned int i;
if (mkdir (dir, 0700))
abort ();
if (chdir (dir))
abort ();
for (i = 0; i < 300; i++)
for (i = 0; i < n_files; i++)
{
char file_name[4];
FILE *out;
@@ -117,15 +120,15 @@ AC_CACHE_CHECK([for working readdir], jm_cv_func_working_readdir,
main ()
{
const char *dir = "conf-dir";
create_300_file_dir (dir);
create_N_file_dir (dir, 500);
remove_dir (dir);
exit (0);
}],
jm_cv_func_working_readdir=yes,
jm_cv_func_working_readdir=no,
jm_cv_func_working_readdir=no)])
gl_cv_func_working_readdir=yes,
gl_cv_func_working_readdir=no,
gl_cv_func_working_readdir=no)])
if test $jm_cv_func_working_readdir = yes; then
if test $gl_cv_func_working_readdir = yes; then
AC_DEFINE(HAVE_WORKING_READDIR, 1,
[Define if readdir is found to work properly in some unusual cases. ])
fi