From 31fc56fef68aece642cf09c7ec9d61ba3915b4b6 Mon Sep 17 00:00:00 2001
From: Ivan Maidanski <ivmai@mail.ru>
Date: Sun, 1 Jan 2023 15:34:59 +0300
Subject: [PATCH] Fix unset HOSTCC and HOSTCFLAGS variables in Makefile.direct
 on AIX (fix of commit e10f0d03b)

AIX Make seems not to recognize "?=" operator properly.

* Makefile.direct (HOSTCC, HOSTCFLAGS): Replace "?=" assignment
operator back to "=".
---
 Makefile.direct | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile.direct b/Makefile.direct
index 4c3803b78..d7eb42113 100644
--- a/Makefile.direct
+++ b/Makefile.direct
@@ -80,8 +80,8 @@ CFLAGS+= -I$(srcdir)/include -I$(AO_SRC_DIR)/src \
 # part of the build process, i.e. on the build machine.  These will usually
 # be the same as CC and CFLAGS, except in a cross-compilation environment.
 # Note that HOSTCFLAGS should include any -D flags that affect thread support.
-HOSTCC?= $(CC)
-HOSTCFLAGS?= $(CFLAGS)
+HOSTCC= $(CC)
+HOSTCFLAGS= $(CFLAGS)
 
 # For dynamic library builds, it may be necessary to add flags to generate
 # PIC code, e.g. -fPIC on Linux.