From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Sun, 30 Aug 2020 22:36:38 +0000 (+1000)
Subject: meson.build: define PATH_MAX where it's missing
X-Git-Tag: xkbcommon-1.0.0~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4d0d509129e5f80c4a9efe4523fc4b0aea58622b;p=platform%2Fupstream%2Flibxkbcommon.git

meson.build: define PATH_MAX where it's missing

PATH_MAX is not POSIX and can be missing on some systems, notably Windows (which
provides MAX_PATH instead tough) and Hurd. Let's define it to a sane value where
missing, i.e.  the one it's defined to in limits.h. Except on Windows where
we're limited to 260.

Fixes https://github.com/xkbcommon/libxkbcommon/issues/180

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---

diff --git a/meson.build b/meson.build
index fcfb3eb..e9233b4 100644
--- a/meson.build
+++ b/meson.build
@@ -124,6 +124,14 @@ else
 endif
 have_getopt_long = cc.has_header_symbol('getopt.h', 'getopt_long',
                                         prefix: '#define _GNU_SOURCE')
+if not cc.has_header_symbol('limits.h', 'PATH_MAX', prefix: system_ext_define)
+    if host_machine.system() == 'windows'
+        # see https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation
+        configh_data.set('PATH_MAX', 260)
+    else
+        configh_data.set('PATH_MAX', 4096)
+    endif
+endif
 
 # Silence some security & deprecation warnings on MSVC
 # for some unix/C functions we use.
diff --git a/tools/tools-common.c b/tools/tools-common.c
index 0c1ffb9..254499d 100644
--- a/tools/tools-common.c
+++ b/tools/tools-common.c
@@ -42,9 +42,6 @@
 #ifdef _MSC_VER
 #include <io.h>
 #include <windows.h>
-#ifndef PATH_MAX
-#define PATH_MAX MAX_PATH
-#endif
 #else
 #include <unistd.h>
 #include <termios.h>