Question

I cannot seem to compile mod_dontdothat on Windows. Has anybody managed to achieve this?

Edit:

I’ve tried compiling the file according to the readme on the site and I’ve tried to add extra libs to reduce the link errors. Ive got the following installed:

1. Apache 2.2.9
2. Visual Studio 2008
3. ActivePerl
4. apxs-win32 from ApacheLounge
5. Subversion libs and headers

I run the following command line:

 C:\Program Files\Apache Software Foundation\Apache2.2\bin>apxs -c -I ..\include\ svn_config.h -L ..\lib -L C:\Progra~1\Micros~1.0\VC\lib -l apr-1.lib -l aprutil- 1.lib -l svn_subr-1.lib -l libapr-1.lib -l libaprutil-1.lib -l libhttpd.lib -l l ibsvn_subr-1.lib -l mod_dav.lib mod_dontdothat.c 

Then I get the following errors:

 cl  /nologo /MD /W3 /O2 /D WIN32 /D _WINDOWS /D NDEBUG    -I'C:\PROGRA~1\APACHE~ 1\Apache2.2\include'  /I'..\include\svn_config.h'  /c /Fomod_dontdothat.lo mod_d ontdothat.c mod_dontdothat.c link kernel32.lib /nologo /subsystem:windows /dll /machine:I386 /libpath:'C:\PRO GRA~1\APACHE~1\Apache2.2\lib' /out:mod_dontdothat.so  /libpath:'..\lib'  /libpat h:'C:\Progra~1\Micros~1.0\VC\lib'  apr-1.lib aprutil-1.lib svn_subr-1.lib libapr -1.lib libaprutil-1.lib libhttpd.lib libsvn_subr-1.lib mod_dav.lib   mod_dontdot hat.lo    Creating library mod_dontdothat.lib and object mod_dontdothat.exp mod_dontdothat.lo : error LNK2019: unresolved external symbol _dav_svn_split_uri @32 referenced in function _is_this_legal svn_subr-1.lib(io.obj) : error LNK2001: unresolved external symbol __imp__libint l_dgettext svn_subr-1.lib(subst.obj) : error LNK2001: unresolved external symbol __imp__lib intl_dgettext svn_subr-1.lib(config_auth.obj) : error LNK2001: unresolved external symbol __im p__libintl_dgettext svn_subr-1.lib(time.obj) : error LNK2001: unresolved external symbol __imp__libi ntl_dgettext svn_subr-1.lib(nls.obj) : error LNK2001: unresolved external symbol __imp__libin tl_dgettext svn_subr-1.lib(dso.obj) : error LNK2001: unresolved external symbol __imp__libin tl_dgettext svn_subr-1.lib(path.obj) : error LNK2001: unresolved external symbol __imp__libi ntl_dgettext svn_subr-1.lib(prompt.obj) : error LNK2001: unresolved external symbol __imp__li bintl_dgettext svn_subr-1.lib(error.obj) : error LNK2019: unresolved external symbol __imp__lib intl_dgettext referenced in function _print_error svn_subr-1.lib(config.obj) : error LNK2001: unresolved external symbol __imp__li bintl_dgettext svn_subr-1.lib(utf.obj) : error LNK2001: unresolved external symbol __imp__libin tl_dgettext svn_subr-1.lib(cmdline.obj) : error LNK2001: unresolved external symbol __imp__l ibintl_dgettext svn_subr-1.lib(utf.obj) : error LNK2019: unresolved external symbol __imp__libin tl_sprintf referenced in function _fuzzy_escape svn_subr-1.lib(path.obj) : error LNK2001: unresolved external symbol __imp__libi ntl_sprintf svn_subr-1.lib(cmdline.obj) : error LNK2019: unresolved external symbol __imp__l ibintl_fprintf referenced in function _svn_cmdline_init svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __SHGetFolderPathA@20 referenced in function _svn_config__win_config_path svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __SHGetFolderPathW@20 referenced in function _svn_config__win_config_path svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __RegCloseKey@4 referenced in function _svn_config__parse_registry svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __RegEnumKeyExA@32 referenced in function _svn_config__parse_registry svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __RegOpenKeyExA@20 referenced in function _svn_config__parse_registry svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __RegQueryValueExA@24 referenced in function _parse_section svn_subr-1.lib(config_win.obj) : error LNK2019: unresolved external symbol __imp __RegEnumValueA@32 referenced in function _parse_section svn_subr-1.lib(win32_xlate.obj) : error LNK2019: unresolved external symbol __im p__CoUninitialize@0 referenced in function _svn_subr__win32_xlate_open svn_subr-1.lib(win32_xlate.obj) : error LNK2019: unresolved external symbol __im p__CoInitializeEx@8 referenced in function _svn_subr__win32_xlate_open svn_subr-1.lib(win32_xlate.obj) : error LNK2019: unresolved external symbol __im p__CoCreateInstance@20 referenced in function _get_page_id_from_name svn_subr-1.lib(nls.obj) : error LNK2019: unresolved external symbol __imp__libin tl_bindtextdomain referenced in function _svn_nls_init svn_subr-1.lib(stream.obj) : error LNK2019: unresolved external symbol _inflate referenced in function _read_handler_gz svn_subr-1.lib(stream.obj) : error LNK2019: unresolved external symbol _inflateI nit_ referenced in function _read_handler_gz svn_subr-1.lib(stream.obj) : error LNK2019: unresolved external symbol _deflate referenced in function _write_handler_gz svn_subr-1.lib(stream.obj) : error LNK2019: unresolved external symbol _deflateI nit_ referenced in function _write_handler_gz svn_subr-1.lib(stream.obj) : error LNK2019: unresolved external symbol _deflateE nd referenced in function _close_handler_gz svn_subr-1.lib(stream.obj) : error LNK2019: unresolved external symbol _inflateE nd referenced in function _close_handler_gz mod_dontdothat.so : fatal error LNK1120: 21 unresolved externals apxs:Error: Command failed with rc=6291456 . 

I’m not too much of a C guru, so any help in finding these unresolved external symbols will be much appreciated!

Answer 1

I managed to compile the module. Prerequisites:

• Apache 2.2.11
• apxs-win32 from http://www.apachelounge.com
• Visual Studio 2005
• Active Perl 5.8.8 (you need perl for apxs-win32 installation)

Here is a step-by-step guide. Download these packages:

• http://subversion.tigris.org/files/documents/15/44595/svn-win32-1.5.5_dev.zip (we need the libraries and header files from this package)
• http://subversion.tigris.org/downloads/subversion-1.5.5.zip (we will be using the mod_dav_svn sources to compile a static lib)

Unpack the dev package to c:\temp\svn and the other package to c:\temp\svn-src and the mod_dontdothat files to C:\Temp\dontdothat.

One of the dependencies of mod_dontdothat module is mod_dav_svn module. Unfortunately you’ll find the mod_dav_svn binary only as a shared library (DLL). You cannot link against a DLL. So the first step is to build a static mod_dav_svn library:

cd C:\Temp\svn-src\subversion\mod_dav_svn apxs -c -I ..\include  -L C:\Temp\svn\lib -l libsvn_delta-1.lib -l libsvn_diff-1.lib -l libsvn_fs-1.lib -l libsvn_fs_base-1.lib -l libsvn_fs_fs-1.lib -l libsvn_fs_util-1.lib -l libsvn_repos-1.lib -l libsvn_subr-1.lib -l libapr-1.lib -l libaprutil-1.lib -l libhttpd.lib -l mod_dav.lib -l xml.lib  -n mod_dav_svn mod_dav_svn.c activity.c authz.c deadprops.c liveprops.c lock.c merge.c mirror.c repos.c util.c version.c reports\dated-rev.c reports\file-revs.c reports\get-locations.c reports\get-location-segments.c reports\get-locks.c reports\log.c reports\mergeinfo.c reports\replay.c reports\update.c 

The apxs call will print the commands it executes. The last command is a link call which builds the DLL. Copy it replace ‘link’ by ‘lib’, remove the ‘/dll’ param, and change the ‘out’ param file name to ‘libmod_dav_svn.lib‘. You should get something similar to:

lib kernel32.lib /nologo /subsystem:windows /machine:I386 /libpath:'C:\PROGRA~1\APACHE~1\Apache2.2\lib' /out:libmod_dav_svn.lib  /libpath:'C:\Temp\svn\lib'  libsvn_delta-1.lib libsvn_diff-1.lib libsvn_fs-1.lib libsvn_fs_base-1.lib libsvn_fs_fs-1.lib libsvn_fs_util-1.lib libsvn_repos-1.lib libsvn_subr-1.lib libapr-1.lib libaprutil-1.lib libhttpd.lib mod_dav.lib xml.lib   reports\update.lo reports\replay.lo reports\mergeinfo.lo reports\log.lo reports\get-locks.lo reports\get-location-segments.lo reports\get-locations.lo reports\file-revs.lo reports\dated-rev.lo version.lo util.lo repos.lo mirror.lo merge.lo lock.lo liveprops.lo deadprops.lo authz.lo activity.lo mod_dav_svn.lo 

You will get some link warnings. You can ignore them. Copy the libmod_dav_svn.lib to the mod_dontdothat directory. Now start the compilation process for mod_dontdothat:

C:\Temp\dontdothat apxs -c -I C:\Temp\svn\include -L C:\Temp\svn\lib -l libsvn_subr-1.lib -l libapr-1.lib -l libaprutil-1.lib -l libhttpd.lib -l mod_dav.lib -l xml.lib -l libmod_dav_svn.lib    mod_dontdothat.c apxs -i -n dontdothat mod_dontdothat.so 

This should do the trick.