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(gl_FUNC_CHDIR_LONG): Check for MAXPATHLEN as well as PATH_MAX.

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Revamp wording and local variables to suggest the intended function of
the PATH_MAX check.
This commit is contained in:
Paul Eggert
2005-10-30 23:04:55 +00:00
parent 3103c9009b
commit a504db1780
1 changed files with 9 additions and 9 deletions
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18
m4/chdir-long.m4
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@@ -1,4 +1,4 @@
#serial 6
#serial 7
# Use Gnulib's robust chdir function.
# It can handle arbitrarily long directory names, which means
@@ -16,18 +16,18 @@ dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_CHDIR_LONG],
[
AC_LIBSOURCES([chdir-long.c, chdir-long.h])
AC_CACHE_CHECK([whether this system has a definition of PATH_MAX],
gl_have_path_max_definition,
[AC_EGREP_CPP([have_path_max_definition],
AC_CACHE_CHECK([whether this system has an arbitrary file name length limit],
gl_have_arbitrary_file_name_length_limit,
[AC_EGREP_CPP([have_arbitrary_file_name_length_limit],
[#include <unistd.h>
#include <limits.h>
#ifdef PATH_MAX
have_path_max_definition
#if defined PATH_MAX || defined MAXPATHLEN
have_arbitrary_file_name_length_limit
#endif],
gl_have_path_max_definition=yes,
gl_have_path_max_definition=no)])
gl_have_arbitrary_file_name_length_limit=yes,
gl_have_arbitrary_file_name_length_limit=no)])
if test $gl_have_path_max_definition = yes; then
if test $gl_have_arbitrary_file_name_length_limit = yes; then
AC_LIBOBJ([chdir-long])
gl_PREREQ_CHDIR_LONG
fi