From a60083c90ef44fad1b16ccf697e4c69dc83ebdf3 Mon Sep 17 00:00:00 2001
From: Gustavo Sverzut Barbieri <barbieri@gmail.com>
Date: Mon, 4 Jan 2010 19:20:15 +0000
Subject: [PATCH] PATH_MAX checks, by Lutin.

SVN revision: 44887
---
 legacy/ecore/configure.ac       |  2 ++
 legacy/ecore/m4/efl_path_max.m4 | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 legacy/ecore/m4/efl_path_max.m4

diff --git a/legacy/ecore/configure.ac b/legacy/ecore/configure.ac
index 4687f2d7bf..0e54d33026 100644
--- a/legacy/ecore/configure.ac
+++ b/legacy/ecore/configure.ac
@@ -30,6 +30,8 @@ AC_SUBST(version_info)
 AM_GNU_GETTEXT_VERSION([0.12.1])
 AM_GNU_GETTEXT([external])
 
+EFL_CHECK_PATH_MAX
+
 case "$host_os" in
    mingw32ce* | cegcc*)
       ;;
diff --git a/legacy/ecore/m4/efl_path_max.m4 b/legacy/ecore/m4/efl_path_max.m4
new file mode 100644
index 0000000000..2c9b60afe7
--- /dev/null
+++ b/legacy/ecore/m4/efl_path_max.m4
@@ -0,0 +1,33 @@
+dnl Check for PATH_MAX in limits.h, and define a default value if not found
+dnl This is a workaround for systems not providing PATH_MAX, like GNU/Hurd
+
+dnl EFL_CHECK_PATH_MAX([DEFAULT_VALUE_IF_NOT_FOUND])
+dnl
+dnl If PATH_MAX is not defined in <limits.h>, defines it
+dnl to DEFAULT_VALUE_IF_NOT_FOUND if it exists, or fallback
+dnl to using 4096
+
+AC_DEFUN([EFL_CHECK_PATH_MAX],
+[
+
+default_max=m4_default([$1], "4096")
+AC_LANG_PUSH([C])
+
+AC_MSG_CHECKING([for PATH_MAX in limit.h])
+AC_COMPILE_IFELSE(
+	[AC_LANG_PROGRAM([[#include <limits.h>]],
+	                 [[int i = PATH_MAX]])
+	],
+	AC_MSG_RESULT([yes]),
+	[
+	  AC_DEFINE_UNQUOTED([PATH_MAX],
+	                     [${default_max}],
+	                     [default value since PATH_MAX is not defined])
+	  AC_MSG_RESULT([no: using ${default_max}])
+	]
+)
+
+AC_LANG_POP([C])
+
+])
+dnl end of efl_path_max.m4