[squid-users] squid 6.1 esi compile error, ubuntu 22.04

[Dmitry Melekhov]

07.08.2023 17:27, Alex Rousskov пишет:
> On 8/7/23 04:00, Dmitry Melekhov wrote:
>
>> Built  using --disable-esi without problems.
>
> First of all, if you do not need ESI, I recommend building with 
> --disable-esi to avoid accidental exposure to dangerous ESI bugs in 
> deployments that should not be using ESI features.


Thank you!

Really, I know nothing about it, so most probably I don't need it.


>
> FWIW, in Project CI environment that also uses GCC on Ubuntu 22.04, 
> Squid v6.1 ESI build[1] succeeds, including the Libxml2Parser.cc 
> compilation step that fails in your environment.
>
> [1] https://github.com/squid-cache/squid/actions/runs/5471818575
>
>     $ grep -A6 LIBEXPAT configure.log
>     checking for LIBEXPAT... yes
>     checking for expat.h... yes
>     checking for LIBXML2... yes
>     checking for libxml/parser.h... yes
>     checking for libxml/HTMLparser.h... yes
>     checking for libxml/HTMLtree.h... yes
>     configure: Enabling ESI processor:  -lexpat -lm  -lxml2
>
>
>     $ grep HAVE_LIBXML include/autoconf.h
>     #define HAVE_LIBXML2 1
>     #define HAVE_LIBXML_HTMLPARSER_H 1
>     #define HAVE_LIBXML_HTMLTREE_H 1
>     #define HAVE_LIBXML_PARSER_H 1
>
>
> Can you share the corresponding ./configure output and 
> include/autoconf.h lines from your build environment?
>
>
>> Could you tell me what can cause this?
>
> I suspect your system lacks libxml/HTMLparser.h or Squid ./configure 
> was unable to find that header. I cannot find relevant libxml2 
> documentation, but if libxml promises to declare xmlParserCtxtPtr in 
> libxml/HTMLparser.h, then this is a Squid bug: When that bug (if it is 
> a Squid bug) is fixed, your build will fail at ./configure time 
> instead of "make" time.
>
> Next steps:
>
> * If your system lacks libxml/HTMLparser.h, then install the missing 
> libxml2 headers. Check the output sampled above to confirm that the 
> installation led to header discovery by ./configure.
>
> * If your system has libxml/HTMLparser.h, set/adjust CPPFLAGS given to 
> ./configure. Check the output sampled above to confirm that your 
> adjustments led to header discovery by ./configure.
>
It is in place, the same as in Ubuntu 20.04,  where I compiled squid 6.1 
without problems,

but configure can't find it:


configure:28616: checking for libxml/parser.h
configure:28616: g++ -std=c++17 -c  -g -O2   conftest.cpp >&5
conftest.cpp:120:10: fatal error: libxml/parser.h: No such file or directory
   120 | #include <libxml/parser.h>
       |          ^~~~~~~~~~~~~~~~~
compilation terminated.


export CPPFLAGS=-I/usr/include/libxml2/

helps

now :

configure:28616: checking for libxml/parser.h
configure:28616: g++ -std=c++17 -c  -g -O2 -I/usr/include/libxml2/ 
conftest.cpp >&5
configure:28616: $? = 0
configure:28616: result: yes


and squid is compiled.


This is new install of ubuntu 22.04,  just about a month ago, so I don't 
think I break something in it...


Thank you!