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Diffstat (limited to 'm4/pathmax.m4')
| -rw-r--r-- | m4/pathmax.m4 | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/m4/pathmax.m4 b/m4/pathmax.m4 new file mode 100644 index 0000000000..4913fa06cb --- /dev/null +++ b/m4/pathmax.m4 @@ -0,0 +1,42 @@ +# pathmax.m4 serial 10 +dnl Copyright (C) 2002-2003, 2005-2006, 2009-2011 Free Software Foundation, +dnl Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_PATHMAX], +[ + dnl Prerequisites of lib/pathmax.h. + AC_CHECK_HEADERS_ONCE([sys/param.h]) +]) + +# Expands to a piece of C program that defines PATH_MAX in the same way as +# "pathmax.h" will do. +AC_DEFUN([gl_PATHMAX_SNIPPET], [[ +/* Arrange to define PATH_MAX, like "pathmax.h" does. */ +#if HAVE_UNISTD_H +# include <unistd.h> +#endif +#include <limits.h> +#if defined HAVE_SYS_PARAM_H && !defined PATH_MAX && !defined MAXPATHLEN +# include <sys/param.h> +#endif +#if !defined PATH_MAX && defined MAXPATHLEN +# define PATH_MAX MAXPATHLEN +#endif +#ifdef __hpux +# undef PATH_MAX +# define PATH_MAX 1024 +#endif +#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +# undef PATH_MAX +# define PATH_MAX 260 +#endif +]]) + +# Prerequisites of gl_PATHMAX_SNIPPET. +AC_DEFUN([gl_PATHMAX_SNIPPET_PREREQ], +[ + AC_CHECK_HEADERS_ONCE([unistd.h sys/param.h]) +]) |