apache2 @2.4.57 mod_proxy_html build failure on sonoma

[dazzlee69]

Migrating ports to sonoma, port install apache2, fails when trying to build mod_proxy_html. Reports the following errors:

:info:build mod_proxy_html.c:425:51: error: no member named 'attrs_req' in 'struct _htmlElemDesc'
:info:build     if ((enforce > 0) && (desc != NULL) && (desc->attrs_req != NULL))
:info:build                                             ~~~~  ^
:info:build mod_proxy_html.c:426:24: error: no member named 'attrs_req' in 'struct _htmlElemDesc'
:info:build         for (a = desc->attrs_req; *a; a++)
:info:build                  ~~~~  ^
:info:build mod_proxy_html.c:433:25: error: call to undeclared function 'htmlAttrAllowed'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
:info:build                 switch (htmlAttrAllowed(desc, (xmlChar*)*a, 2-enforce)) {
:info:build                         ^
:info:build mod_proxy_html.c:434:22: error: use of undeclared identifier 'HTML_INVALID'
:info:build                 case HTML_INVALID:
:info:build                      ^
:info:build mod_proxy_html.c:439:22: error: use of undeclared identifier 'HTML_DEPRECATED'
:info:build                 case HTML_DEPRECATED:
:info:build                      ^
:info:build mod_proxy_html.c:444:22: error: use of undeclared identifier 'HTML_REQUIRED'
:info:build                 case HTML_REQUIRED:
:info:build                      ^
:info:build /opt/local/share/apr-1/build/libtool --silent --mode=link --tag=CC /usr/bin/clang -I/usr/local/include/libxml2   -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk -arch arm64   -L/opt/local/lib/db48  -L/opt/local/lib -Wl,-headerpad_max_install_names -Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX14.sdk -arch arm64    -o mod_ratelimit.la -rpath /opt/local/lib/apache2/modules -module -avoid-version  mod_ratelimit.lo
:info:build mod_proxy_html.c:894:19: error: use of undeclared identifier 'XML_PARSE_RECOVER'
:info:build     int xmlopts = XML_PARSE_RECOVER | XML_PARSE_NONET |
:info:build                   ^
:info:build mod_proxy_html.c:894:39: error: use of undeclared identifier 'XML_PARSE_NONET'
:info:build     int xmlopts = XML_PARSE_RECOVER | XML_PARSE_NONET |
:info:build                                       ^
:info:build mod_proxy_html.c:895:19: error: use of undeclared identifier 'XML_PARSE_NOBLANKS'
:info:build                   XML_PARSE_NOBLANKS | XML_PARSE_NOERROR | XML_PARSE_NOWARNING;
:info:build                   ^
:info:build mod_proxy_html.c:895:40: error: use of undeclared identifier 'XML_PARSE_NOERROR'
:info:build                   XML_PARSE_NOBLANKS | XML_PARSE_NOERROR | XML_PARSE_NOWARNING;
:info:build                                        ^
:info:build mod_proxy_html.c:895:60: error: use of undeclared identifier 'XML_PARSE_NOWARNING'
:info:build                   XML_PARSE_NOBLANKS | XML_PARSE_NOERROR | XML_PARSE_NOWARNING;
:info:build                                                            ^
:info:build mod_proxy_html.c:998:31: error: call to undeclared function 'xmlCtxtUseOptions'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
:info:build                 if (xmlopts = xmlCtxtUseOptions(ctxt->parser, xmlopts), xmlopts)
:info:build                               ^
:info:build 12 errors generated.

This is with Xcode 15 on OSX 14.0 Sonoma

If there is a temporary way to build without that module, happy to try that. Other modules appear to compile fine before it gets to that one.

Thanks, Darren

[ryandesign (Ryan Carsten Schmidt)]

Please attach the main.log file.

[ryandesign (Ryan Carsten Schmidt)]

On my Monterey system I get:

checking whether to enable mod_proxy_html... checking dependencies
checking for libxml2... (cached) no
checking whether to enable mod_proxy_html... no (disabled)

[Schamschula (Marius Schamschula)]

I see the same under Sonoma. I got a clean build.

[dazzlee69]

main.log from the build

[ryandesign (Ryan Carsten Schmidt)]

Your log says:

:info:configure checking for libxml2... checking for libxml2... yes
:info:configure   setting MOD_CFLAGS to "-I/usr/local/include/libxml2"
:info:configure   setting MOD_XML2ENC_LDADD to "-lxml2"
:info:configure checking whether to enable mod_xml2enc... shared (all)
:info:configure checking whether to enable mod_proxy_html... checking dependencies
:info:configure checking for libxml2... (cached) yes
:info:configure   setting MOD_PROXY_HTML_LDADD to "-lxml2"
:info:configure checking whether to enable mod_proxy_html... shared (all)

Remove what you have in /usr/local. See wiki:FAQ#usrlocal. Then sudo port clean apache2 and try again.

We should improve the apache2 port so that it does not attempt to find libxml2 there. Or, we should enable mod_proxy_html and have it find MacPorts libxml2 and fix the compile problems, if mod_proxy_html is useful.

[dazzlee69]

Ah yes, sorry, I have brew, ports and lots of history on my laptop.

Removing that has allowed apache2 to compile and install cleanly.

I would agree that as mac ports should only use /opt/local, it should not look outside of there for other things, but I'm good for now.

Thanks, Darren

[Schamschula (Marius Schamschula)]

Added libxml2 dependency in ​https://github.com/macports/macports-ports/commit/a0b8ba3266b629cc29832d5692552176ba6db406