Topic: mod_perl problem

[roblassche]

I use MinGW, Visual C 10 express and MS SDK.
I compiled Perl and Apache (with apr) from source, it works.
The binary mod_perl, downloaded from apachelounge works with MY compiled version of Perl and Apache.

I also want to compile mod_perl from sources, but fails.
This is the error during linking:
icrosoft (R) Program Maintenance Utility Version 10.00.30319.01
Copyright (C) Microsoft Corporation. All rights reserved.

mod_perl.lo:mod_perl.c:(.text+0x1a): undefined reference to `_imp__apr_dynamic_fn_register'
mod_perl.lo:mod_perl.c:(.text+0x32): undefined reference to `_imp__ap_server_config_defines'
mod_perl.lo:mod_perl.c:(.text+0x3d): undefined reference to `_imp__apr_array_push@4'
mod_perl.lo:mod_perl.c:(.text+0x51): undefined reference to `_imp__apr_pstrdup@8'
mod_perl.lo:mod_perl.c:(.text+0x7b): undefined reference to `_imp__ap_hook_pre_config@16'
mod_perl.lo:mod_perl.c:(.text+0xa3): undefined reference to `_imp__ap_hook_open_logs@16'
mod_perl.lo:mod_perl.c:(.text+0xcb): undefined reference to `_imp__ap_hook_post_config@16'
mod_perl.lo:mod_perl.c:(.text+0xf3): undefined reference to `_imp__ap_hook_handler@16'
mod_perl.lo:mod_perl.c:(.text+0x141): undefined reference to `_imp__ap_hook_insert_filter@16'
mod_perl.lo:mod_perl.c:(.text+0x18f): undefined reference to `_imp__ap_register_output_filter@16'
mod_perl.lo:mod_perl.c:(.text+0x1b9): undefined reference to `_imp__ap_register_input_filter@16'
mod_perl.lo:mod_perl.c:(.text+0x22b): undefined reference to `_imp__ap_hook_pre_connection@16'
mod_perl.lo:mod_perl.c:(.text+0x253): undefined reference to `_imp__ap_hook_create_request@16'
mod_perl.lo:mod_perl.c:(.text+0x27b): undefined reference to `_imp__ap_hook_post_read_request@16'
mod_perl.lo:mod_perl.c:(.text+0x2a3): undefined reference to `_imp__ap_hook_header_parser@16'
mod_perl.lo:mod_perl.c:(.text+0x2cb): undefined reference to `_imp__ap_hook_child_init@16'
mod_perl.lo:mod_perl.c:(.text+0x2ed): undefined reference to `_imp__apr_pool_cleanup_null'
mod_perl.lo:mod_perl.c:(.text+0x30a): undefined reference to `_imp__apr_pool_cleanup_register@16'
mod_perl.lo:mod_perl.c:(.text+0x36c): undefined reference to `_imp__apr_pool_clear@4'
mod_perl.lo:mod_perl.c:(.text+0x679): undefined reference to `_imp__ap_add_version_component@8'
mod_perl.lo:mod_perl.c:(.text+0x914): undefined reference to `_imp__ap_server_root'
mod_perl.lo:mod_perl.c:(.text+0x96f): undefined reference to `_imp__apr_filepath_merge@20'
mod_perl.lo:mod_perl.c:(.text+0x9bd): undefined reference to `_imp__apr_stat@16'
mod_perl.lo:mod_perl.c:(.text+0xc5d): undefined reference to `_imp__apr_pool_create_ex@16'
mod_perl.lo:mod_perl.c:(.text+0xc78): undefined reference to `_imp__apr_pool_tag@8'
mod_perl.lo:mod_perl.c:(.text+0xcf6): undefined reference to `_imp__apr_pool_cleanup_null'
mod_perl.lo:mod_perl.c:(.text+0xd18): undefined reference to `_imp__apr_pool_cleanup_register@16'
mod_perl.lo:mod_perl.c:(.text+0xd56): undefined reference to `_imp__ap_mpm_query@8'
mod_perl.lo:mod_perl.c:(.text+0xe5f): undefined reference to `_imp__apr_palloc@8'
c:/mingw/bin/../lib/gcc/mingw32/4.7.2/../../../../mingw32/bin/ld.exe: mod_perl.lo: bad reloc address 0xc in section `.data'
collect2.exe: fout: ld gaf exit-status 1 terug
dmake: Error code 129, while making 'mod_perl.so'
NMAKE : fatal error U1077: 'cd' : return code '0xff'
Stop.

I grepped for some of the undefined reference and only found something in the .h file:
./httpd-2.2.24/srclib/apr/include/apr_file_info.h
/** Cause apr_filepath_merge to fail if addpath is above rootpath
/** Cause apr_filepath_merge to fail if addpath is above rootpath,
/** Fail apr_filepath_merge if the merged path is relative */
/** Fail apr_filepath_merge if the merged path is absolute */
APR_DECLARE(apr_status_t) apr_filepath_merge(char **newpath,
./httpd-2.2.24/srclib/apr/include/arch/win32/apr_arch_file_io.h
* apr_filepath_root or apr_filepath_merge, this fn determines
/* The apr_filepath_merge wants to canonicalize the cwd to the

***
Do you have a clue what is wrong?

[roblassche]

I solved the LINK errors.
Perl was compiled with MinGW and Apache with MS VC10.
I could NOT find in the sources something with _imp__.
I think this is caused by the MinGW compiler.
Anyway, I compiled Perl with MS VC10 and then compile mod_perl from source. The link errors are GONE and mod_perl.so is created.

I will test mod_perl later on, and document the steps involved in compiling and linking.

[glsmith]

_imp__ means imported function ... verses an exported function. The actual function name is what is after the _imp__.

_imp__apr_dynamic_fn_register