From 592d860434b3b50d1ab954274a7bd21137a0c676 Mon Sep 17 00:00:00 2001
From: Liam Wilson <liam.wilson@alliedtelesis.co.nz>
Date: Thu, 26 Sep 2024 09:31:31 +1200
Subject: [PATCH] configure: clear cached header value

Unset ac_cv_header_hs_h before checking for header. This allows
hyperscan to be included in compilation when switching from a non-hs
build to a hs build.
---
 configure.ac | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.ac b/configure.ac
index 413cda2aeb..3ec7ebd57f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -687,6 +687,7 @@
     if test "$with_libhs_includes" != "no"; then
         CPPFLAGS="${CPPFLAGS} -I${with_libhs_includes}"
     fi
+    AS_UNSET(ac_cv_header_hs_h)
     AC_CHECK_HEADER(hs.h,HYPERSCAN="yes",HYPERSCAN="no")
     if test "$HYPERSCAN" = "yes"; then
         if test "$with_libhs_libraries" != "no"; then