Configure: fixed perl Makefile generation (ticket #334). Dependancy tracking introduced in r5169 were not handled absolute path names properly. Absolute names might appear in CORE_DEPS if --with-openssl or --with-pcre configure arguments are used to build OpenSSL/PCRE libraries. Additionally, revert part of r5169 to set NGX_INCS from Makefile variables. Makefile variables have $ngx_include_opt in them, which might result in wrong include paths being used. As a side effect, this also restores build with --with-http_perl_module and --without-http at the same time.

ngx_addon_name=ngx_mysql

HTTP_MODULES="$HTTP_MODULES ngx_http_mysql_test_module"

HTTP_INCS="$HTTP_INCS $ngx_addon_dir"
HTTP_DEPS="$HTTP_DEPS $ngx_addon_dir/ngx_mysql.h"
#CORE_LIBS="$CORE_LIBS -lmd"

USE_SHA1=YES

NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_mysql.c"
NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_addon_dir/ngx_http_mysql_test.c"