From 242f76768460fffca5cf1bbea288f25b1f0f1d8d Mon Sep 17 00:00:00 2001
From: Dave Hart <davehart@gmail.com>
Date: Sat, 17 Jun 2023 00:16:41 +0000
Subject: [PATCH] Enable containing package CFLAGS etc.

Add AC_SUBST of LIBEVENT_FLAGS, LIBEVENT_CPPFLAGS, and LIBEVENT_LDFLAGS so they are relayed from the configure command line to the Makefile
---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/configure.ac b/configure.ac
index 4c126129..318aea89 100644
--- a/configure.ac
+++ b/configure.ac
@@ -859,6 +859,11 @@ AC_SUBST([LIBEVENT_GC_SECTIONS])
 
 AM_CONDITIONAL([INSTALL_LIBEVENT], [test "$enable_libevent_install" = "yes"])
 
+dnl Allow additional flags from a containing package such as NTP
+AC_SUBST([LIBEVENT_CFLAGS])
+AC_SUBST([LIBEVENT_CPPFLAGS])
+AC_SUBST([LIBEVENT_LDFLAGS])
+
 AC_C_BIGENDIAN([CFLAGS="$CFLAGS -DBIG_ENDIAN"], [CFLAGS="$CFLAGS -DLITTLE_ENDIAN"])
 
 dnl Doxygen support