Hurd doesn't define PATH_MAX but is needed by pre-process.c
Allow sparse to build on Hurd by giving it a default value
of 4096.
Note: this solution is not ideal because *if* the path is
longer than PATH_MAX (and this *can* also happen on
non-hurd machine) then we have a nice buffer flow
which will corrupt the stack.
A better solution will come later.
Reported-by: Uwe Kleine-König <uwe@xxxxxxxxxxxxxxxxx>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
pre-process.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/pre-process.c b/pre-process.c
index c6c6cdada..7d335ab0c 100644
--- a/pre-process.c
+++ b/pre-process.c
@@ -848,6 +848,10 @@ static void set_stream_include_path(struct stream *stream)
includepath[0] = path;
}
+#ifndef PATH_MAX
+#define PATH_MAX 4096 // for Hurd where it's not defined
+#endif
+
static int try_include(const char *path, const char *filename, int flen, struct token **where, const char **next_path)
{
int fd;
--
2.17.0
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