Merge of r4473: Core: protection from cycles with named locations and post_action. Now redirects to named locations are counted against normal uri changes limit, and post_action respects this limit as well. As a result at least the following (bad) configurations no longer trigger infinite cycles: 1. Post action which recursively triggers post action: location / { post_action /index.html; } 2. Post action pointing to nonexistent named location: location / { post_action @nonexistent; } 3. Recursive error page for 500 (Internal Server Error) pointing to a nonexistent named location: location / { recursive_error_pages on; error_page 500 @nonexistent; return 500; }

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


if [ $PCRE != NONE -a $PCRE != NO -a $PCRE != YES ]; then
    . auto/lib/pcre/make
fi

if [ $MD5 != NONE -a $MD5 != NO -a $MD5 != YES ]; then
    . auto/lib/md5/make
fi

if [ $SHA1 != NONE -a $SHA1 != NO -a $SHA1 != YES ]; then
    . auto/lib/sha1/make
fi

if [ $OPENSSL != NONE -a $OPENSSL != NO -a $OPENSSL != YES ]; then
    . auto/lib/openssl/make
fi

if [ $ZLIB != NONE -a $ZLIB != NO -a $ZLIB != YES ]; then
    . auto/lib/zlib/make
fi

if [ $NGX_LIBATOMIC != NO -a $NGX_LIBATOMIC != YES ]; then
    . auto/lib/libatomic/make
fi

if [ $USE_PERL = YES ]; then
    . auto/lib/perl/make
fi