From: Tony Finch <fanf@isc.org>
Date: Wed, 21 Sep 2022 16:44:48 +0000 (+0100)
Subject: A more helpful error when --without-jemalloc is impossible
X-Git-Tag: v9.19.6~45^2
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=f0e79458beebfb7f247f38bdd9991b6998f97040;p=thirdparty%2Fbind9.git

A more helpful error when --without-jemalloc is impossible

When jemalloc is the system allocator (on FreeBSD and NetBSD), trying
to build --without-jemalloc caused an obscure compiler error. Instead,
complain at configure time that --without-jemalloc cannot work. (It
needs to remain an error because it is vexing when configure quietly
ignores an explicit direction.)
---

diff --git a/configure.ac b/configure.ac
index 903287748b3..a8b4ac290c4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1400,7 +1400,10 @@ AS_CASE([$with_jemalloc],
 	    with_jemalloc=no])])
 
 AS_IF([test "$with_jemalloc" = "no"],
-      [AC_CHECK_FUNCS([malloc_size malloc_usable_size])])
+      [AS_CASE([$host],
+	       [*-freebsd*],[AC_MSG_ERROR([You cannot compile without jemalloc; jemalloc is the system allocator on FreeBSD])],
+	       [*-netbsd*],[AC_MSG_ERROR([You cannot compile without jemalloc; jemalloc is the system allocator on NetBSD])])
+       AC_CHECK_FUNCS([malloc_size malloc_usable_size])])
 
 AM_CONDITIONAL([HAVE_JEMALLOC], [test "$with_jemalloc" = "yes"])