Fixed alias in regex locations with limit_except/if. The ngx_http_map_uri_to_path() function used clcf->regex to detect if it's working within a location given by a regular expression and have to replace full URI with alias (instead of a part matching the location prefix). This is incorrect due to clcf->regex being false in implicit locations created by if and limit_except. Fix is to preserve relevant information in clcf->alias instead, by setting it to NGX_MAX_SIZE_T_VALUE if an alias was specified in a regex location.

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


# aCC: HP ANSI C++ B3910B A.03.55.02

# C89 mode

CFLAGS="$CFLAGS -Ae"
CC_TEST_FLAGS="-Ae"

PCRE_OPT="$PCRE_OPT -Ae"
ZLIB_OPT="$ZLIB_OPT -Ae"
MD5_OPT="$MD5_OPT -Ae"