From 6f919c2e855482c1c7c184faa4f541ffcd1b885a Mon Sep 17 00:00:00 2001
From: Isaac Rowe <9010221+irowebbn@users.noreply.github.com>
Date: Tue, 24 Oct 2023 20:18:23 +0000
Subject: [PATCH] Add compile definitions for self-contained build

---
 CMakeLists.txt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a4e2fea..09bc356 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,4 +8,10 @@ add_executable(elf2cfetbl elf2cfetbl.c)
 
 install(TARGETS elf2cfetbl DESTINATION host)
 
-
+# The _XOPEN_SOURCE directive is required for glibc to enable conformance with the
+# the X/Open standard version 6, which includes POSIX.1c as well as SUSv2/UNIX98 extensions.
+# Needed in this target to get PATH_MAX in limits.h and ctime_r
+target_compile_definitions(elf2cfetbl
+    PRIVATE
+    _XOPEN_SOURCE=600
+ )