Hi,
I just tried to build Apache httpd 2.4.21 using the pre-release test
tarball under Linux (openSUSE Leap 42.1). But in contrast to the previous
releases my own build wrapper script unfortunately failed. I could
reproduce the problem by just using the reduced command
./configure --enable-so --enable-mods-shared=few
that issues
[... lines deleted ...]
checking whether to enable mod_proxy_express... no (few)
checking whether to enable mod_proxy_hcheck... checking dependencies
configure: WARNING: "mod_watchdog is disabled but required for
mod_proxy_hcheck"
checking whether to enable mod_proxy_hcheck... configure: error:
mod_proxy_hcheck has been requested but can not be built due to prerequisite
failures
Ok, a "configure --help" mentions
--enable-proxy-hcheck reverse-proxy health-check module. Requires
--enable-proxy and --enable-watchdog
but why is the module "proxy-hcheck" enabled while using the option
"--enable-mods-shared=few"?
Unfortunately the option "--enable-mods-shared=few" seems not well
documented but it seems to enable for e.g. for 2.4.20 only the modules
access_compat, alias, auth_basic, authn_core, authn_file, authz_core,
authz_groupfile, authz_host, authz_user, autoindex, dir, env, filter,
heaaders, log_config, mime, reqtimeout, setenvif, statis, unixd, and
version. But no "proxy"-related modules are included!
A short analysis of the configure script of 2.4.21 let me find the
somewhat irritating line 23330
enable_proxy_hcheck=$enable_proxy_hcheck
Comparing the logic about that line with that of the other "proxy"-related
modules I replaced that line by the more meaningful (?)
enable_proxy_hcheck=$proxy_mods_enable
and at least ./configure now runs without errors.
Additionally I found on lines 21591-21593 the in 2.4.21 added related
code
if test "$proxy_mods_enable" = "no"; then
enable_proxy_hcheck=no
fi
that seems to me a little bit like an incomplete hack for the
errorneous (?) line 23330 mentioned above (but I'm not sure).
Regards
Jens
