git: 986c668ac668 - main - www/varnish7: fix build with clang 15

The branch main has been updated by dim (src committer):

URL: https://cgit.FreeBSD.org/ports/commit/?id=986c668ac668d0719592669141a9e1324af6b28f

commit 986c668ac668d0719592669141a9e1324af6b28f
Author:     Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2023-01-07 15:26:06 +0000
Commit:     Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2023-01-08 11:01:11 +0000

    www/varnish7: fix build with clang 15
    
    During an exp-run for llvm 15 (see bug 265425), it turned out that
    www/varnish7 failed to build with clang 15:
    
      adler32.c:189:15: error: a function definition without a prototype is deprecated in all versions of C and is not supported in C2x [-Werror,-Wdeprecated-non-prototype]
      uLong ZEXPORT adler32(adler, buf, len)
                    ^
    
    This is because varnish needlessly builds with -Werror. Turn it off, so
    the warnings can simply be ignored.
    
    PR:             268814
    Approved by:    dbaio (maintainer)
    MFH:            2023Q1
---
 www/varnish7/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/www/varnish7/Makefile b/www/varnish7/Makefile
index ee941e2f1848..3b565de8bef6 100644
--- a/www/varnish7/Makefile
+++ b/www/varnish7/Makefile
@@ -35,6 +35,8 @@ TEST_TARGET=	check
 TEST_ARGS=	TESTS_PARALLELISM=1
 
 CONFIGURE_ARGS=	--localstatedir=${PREFIX} --without-dot
+# Needed for clang 15 (#268814)
+CONFIGURE_ENV+=	ax_cv_check_cflags___Werror=no
 
 .if defined(NO_INET6) || defined(WITHOUT_INET6)
 BAD_TESTS=	r00832