From 0091cb02819dfd0bd83329831b68e4280ccbc5a4 Mon Sep 17 00:00:00 2001
From: Mark Adler <fork@madler.net>
Date: Mon, 10 Oct 2022 11:00:49 -0700
Subject: [PATCH] Fix linking on AIX with gcc.

---
 configure | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure b/configure
index aa872ec..c487270 100755
--- a/configure
+++ b/configure
@@ -252,6 +252,8 @@ if test "$gcc" -eq 1 && ($cc -c $test.c) >> configure.log 2>&1; then
                  shared_ext='.sl'
                  SHAREDLIB='libz.sl' ;;
          esac ;;
+  AIX*)
+        LDFLAGS="${LDFLAGS} -Wl,-brtl" ;;
   Darwin* | darwin* | *-darwin*)
              shared_ext='.dylib'
              SHAREDLIB=libz$shared_ext