How to install mod_perl 2.0.10 in Apache 2.4 on OS X El Capitan? - osx-elcapitan

Question

Build problems with a completely new install of mod_perl. Here are the versions of my software.
OS X El Capitan 10.11. Recently upgraded from OS X Yosemite 10.10.
Xcode 7.1. Apache 2.4.16. This is the Apache version that was included with 10.11
mod_perl 2.0.10. Downloaded from SVN.
chrisbtoo's answer to how-to-install-mod-perl-2-0-9-in-apache-2-4-on-os-x-yosemite allowed the build to begin. make fails like this
-c modperl_util.c && mv modperl_util.o modperl_util.lo modperl_util.c:636:20: warning: format specifies type 'int' but the
argument has type 'apr_size_t'
(aka 'unsigned long') [-Wformat]
size, (apr_size_t)r->finfo.size, r->filename);
^~~~ modperl_util.c:636:26: warning: format specifies type 'int' but the argument has type 'apr_size_t'
(aka 'unsigned long') [-Wformat]
size, (apr_size_t)r->finfo.size, r->filename);
^~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. modperl_util.c:636:20: warning: format specifies type 'int'
but the argument has type 'apr_size_t'
(aka 'unsigned long') [-Wformat]
size, (apr_size_t)r->finfo.size, r->filename);
^~~~ modperl_util.c:636:26: warning: format specifies type 'int' but the argument has type 'apr_size_t'
(aka 'unsigned long') [-Wformat]
size, (apr_size_t)r->finfo.size, r->filename);
^~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated.
then again
-c modperl_common_util.c && mv modperl_common_util.o modperl_common_util.lo modperl_common_util.c:57:53: warning:
incompatible pointer types initializing 'int
(*)(PerlInterpreter *, SV *, MAGIC *, SV *, const char *, I32)' with an expression of type
'int (PerlInterpreter *, SV *, MAGIC *, SV *, const char *, int)'
[-Wincompatible-pointer-types]
modperl_table_magic_copy};
^~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated.
then 68 duplicate symbol messages like this brief sample:
duplicate symbol _MP_vtbl_env in:
mod_perl.lo
modperl_interp.lo
duplicate symbol _MP_vtbl_envelem in:
mod_perl.lo
modperl_interp.lo
Here are the final error messages.
make1: * [mod_perl.so] Error 1 make: * [modperl_lib] Error 2
Does this seem like anything in the environment that I might fix?

Answer 1

What worked for me was checking out codes from one of the tagged branches instead of checking out direct from the trunk.
The tagged branch I used: https://svn.apache.org/repos/asf/perl/modperl/tags/2_0_9/
so the first step then becomes:
svn checkout https://svn.apache.org/repos/asf/perl/modperl/tags/2_0_9/ mod_perl-2.0
So just replace this step and then follow the rest of the steps in the link you used (ie How to install mod_perl 2.0.9 in Apache 2.4 on OS X Yosemite?).