[pulseaudio-discuss] pulseaudio on cygwin patch

[Adam Smith]

Hey list,

I spent the last half a day or so learning the autoconf/automake toolset 
and going through the build system of pulseaudio to get it to compile 
under cygwin rather then native.  (I wanted module-x11-publish with 
Cygwin/X).

The patch is against the 0.9.5 tree rather then SVN as I didn't know if 
I would get it done when I started, but I figured I'll share it anyway 
to see if it gets any use.

The pulseaudio patch moves the win32api header detection up into the 
determine build environment section, this can be relocated back down to 
the other part but the cygwin test needs to stay for this to work.  (The 
alternative is to go through every source file and modify where the 
winsock.h header file gets included from, it needs to go before the 
cygwin includes so that the cygwin headers can ifdef around the already 
defined functions from win32api.  This was beyond the scope of what I 
wanted to do, which was to just get it compiled and running.)  I also 
added the --disable-cygwin option for building which should revert the 
behavior under the cygwin compiler back to the mingw settings.

I had to add in another conditional for automake, OS_IS_CYGWIN.  Mostly 
setting OS_IS_WIN32 under Cygwin compiles the right things, however it 
was breaking the PG_DEFAULT_CONFIG_DIR, but mostly everything else was 
fine.  I added the other conditional at first to fix this, but then I 
noticed that if I did it, I could clean up some of the other things in 
the automake file as well. (Rather specific Win32 compiler options that 
Cygwin doesn't really use)  These fixes can look rather nasty but 
automake only supports checking one variable at a time in a conditional 
branch as far as I can tell from the manual.

I also made a fix which may or may not have already been fixed in SVN 
with the module_x11_publish_la_LIBADD line where it was missing the 
include of libpulsecore.la, that's about the only thing in the 
pulseaudio patch that I can see that might already be done (unless I've 
gone and reinvented the wheel (again) and cygwin build support was 
already added).

I also sent a patch off to the liboil list to fix a small compile bug 
with it which I'll attach here too.

Short list of steps for compiling it under Cygwin:

Download and install the IPv6 extension to Cygwin from 
http://win6.jp/Cygwin/index.html
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig (I've got this one in my 
/etc/bash.bashrc)
Download libsndfile from http://www.mega-nerd.com/libsndfile/, if you 
have all the Cygwin devel prereq packages it should just be a 
./configure && make && make install for this one
Download libsamplerate from http://www.mega-nerd.com/SRC/, this one 
needs to be configured like: LDFLAGS='-no-undefined' ./configure && make 
&& make install
Download liboil from http://liboil.freedesktop.org/, apply the liboiltmp 
stub patch (patch -p1 -i liboil-0.3.10-liboiltmp-stub-cygwin-fix.patch 
from in the liboil folder), then ./configure && make && make install
Download pulseaudio from http://pulseaudio.org/, apply the 
pulseaudio-0.9.5-cygwin-fix.patch (patch -p1 -i 
pulseaudio-0.9.5-cygwin-fix.patch from in the pulseaudio folder), 
./configure && make && make install

-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: pulseaudio-0.9.5-cygwin-fix.patch
URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20061218/407b0358/attachment.asc>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: liboil-0.3.10-liboiltmp-stub-cygwin-fix.patch
URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20061218/407b0358/attachment.txt>