Original commit message from CVS:
2004-01-16 Ronald Bultje <rbultje@ronald.bitfreak.net>
* gst-libs/gst/Makefile.am:
restructure so having local patches works easier.
Original commit message from CVS:
* gst-libs/gst/audio/Makefile.am:
Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c
from the template.
* gst-libs/gst/audio/gstaudiofilter.c:
* gst-libs/gst/audio/gstaudiofilter.h:
Add bytes_per_sample and size and n_samples calculation.
* gst-libs/gst/audio/gstaudiofilterexample.c:
Remove, now autogenerated.
* gst-libs/gst/audio/gstaudiofiltertemplate.c:
Moved from gstaudiofilterexample, object name changed, code added
so that it actually works.
* gst-libs/gst/audio/make_filter:
Script to build an audiofilter subclass from the template.
* gst/colorspace/Makefile.am:
* gst/colorspace/yuv2yuv.c:
Remove file, since it's GPL, and we don't use it.
Original commit message from CVS:
2004-01-15 Julien MOUTTE <julien@moutte.net>
* ext/alsa/gstalsamixer.c: (gst_alsa_mixer_interface_init): Setting
mixer interface type to HARDWARE.
* gst-libs/gst/mixer/mixer.c: (gst_mixer_class_init): Adding a default
type to SOFTWARE.
* gst-libs/gst/mixer/mixer.h: Adding mixer interface type and macro.
* gst-libs/gst/mixer/mixertrack.h: Adding mixertrack flag SOFTWARE.
* gst/volume/gstvolume.c: (gst_volume_interface_supported),
(gst_volume_interface_init), (gst_volume_list_tracks),
(gst_volume_set_volume), (gst_volume_get_volume),
(gst_volume_set_mute), (gst_volume_mixer_init),
(gst_volume_dispose), (gst_volume_get_type), (volume_class_init),
(volume_init): Implementing mixer interface.
* gst/volume/gstvolume.h: Adding tracklist for mixer interface.
* sys/oss/gstosselement.c: (gst_osselement_get_type),
(gst_osselement_change_state): Removing some trailing commas in
structures.
* sys/oss/gstossmixer.c: (gst_ossmixer_interface_init): Setting mixer
interface type to HARDWARE.
* sys/v4l/gstv4lcolorbalance.c:
(gst_v4l_color_balance_interface_init): Setting colorbalance interface
type to HARDWARE.
* sys/v4l2/gstv4l2colorbalance.c:
(gst_v4l2_color_balance_interface_init): Setting colorbalance
interface type to HARDWARE.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_chain): use exactly the
same code than ximagesink for event handling.
Original commit message from CVS:
2004-01-14 Julien MOUTTE <julien@moutte.net>
* gst-libs/gst/colorbalance/colorbalance.c:
(gst_color_balance_class_init): Adding a default type.
* gst-libs/gst/colorbalance/colorbalance.h: Adding a macro to access
the type.
* gst/videofilter/gstvideobalance.c: (gst_videobalance_get_type),
(gst_videobalance_dispose), (gst_videobalance_class_init),
(gst_videobalance_init), (gst_videobalance_interface_supported),
(gst_videobalance_interface_init),
(gst_videobalance_colorbalance_list_channels),
(gst_videobalance_colorbalance_set_value),
(gst_videobalance_colorbalance_get_value),
(gst_videobalance_colorbalance_init): Implementing colorbalance
interface.
* gst/videofilter/gstvideobalance.h: Adding colorbalance channels
list.
* sys/ximage/ximagesink.c: (gst_ximagesink_set_xwindow_id): Fixing a
bug which was triggering a BadAccess X error when setting an overlay
before pad was really negotiated.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_colorbalance_init):
Using the colorbalance type macro.
Original commit message from CVS:
2004-01-14 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst-libs/gst/play/gstplay.c: (gst_play_tick_callback):
Query the audio element to get the time, not the clock. We're
interested in the element's time here.
Original commit message from CVS:
2004-01-13 Julien MOUTTE <julien@moutte.net>
* gst-libs/gst/colorbalance/colorbalance.h: Adding a type to the
colorbalance interface stating if it is hardware based or software
based.
* gst/videofilter/gstvideobalance.c: (gst_videobalance_planar411):
Removing a trailing comma.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_xcontext_get),
(gst_xvimagesink_colorbalance_init): Integrating a patch from Jon
Trowbridge <trow@ximian.com> querying Xv adaptor for min/max value as
the documentation seems to be wrong on the -1000 to 1000 interval.
Original commit message from CVS:
2004-01-12 Julien MOUTTE <julien@moutte.net>
* gst-libs/gst/colorbalance/colorbalancechannel.c:
(gst_color_balance_channel_dispose): Adding safety check in dispose
method.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_xcontext_get),
(gst_xvimagesink_xcontext_clear),
(gst_xvimagesink_interface_supported),
(gst_xvimagesink_colorbalance_list_channels),
(gst_xvimagesink_colorbalance_set_value),
(gst_xvimagesink_colorbalance_get_value),
(gst_xvimagesink_colorbalance_init), (gst_xvimagesink_get_type):
Adding colorbalance interface support to set XV parameters such as
HUE, BRIGHTNESS, CONTRAST, SATURATION.
* sys/xvimage/xvimagesink.h: Adding the channels list for colorbalance
interface.
Original commit message from CVS:
2004-01-12 Julien MOUTTE <julien@moutte.net>
* gst-libs/gst/play/gstplay.c: (gst_play_get_sink_element): When
analyzing the pads of an element the bin is mostly in READY state so
no caps were negotiated. This helper function needs to work with
_get_caps directly then. I was not freeing them though, added that to
fix the mem leak.
Original commit message from CVS:
Remove all usage of gst_pad_get_caps(), and replace it with
gst_pad_get_allowed_caps() or gst_pad_get_negotiated_cap().
Original commit message from CVS:
* ext/ffmpeg/gstffmpegcolorspace.c: (gst_ffmpegcsp_chain):
Implementing gst_pad_alloc_buffer to use optimized buffer allocation.
* gst-libs/gst/xoverlay/xoverlay.c:
(gst_x_overlay_got_desired_size): Updating doc for the xid being 0.
* gst/videoscale/gstvideoscale.c: (gst_videoscale_chain):
Implementing gst_pad_alloc_buffer to use optimized buffer allocation.
* gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_get):
Implementing gst_pad_alloc_buffer to use optimized buffer allocation.
* sys/ximage/ximagesink.c: (gst_ximagesink_chain),
(gst_ximagesink_buffer_free), (gst_ximagesink_buffer_alloc),
(gst_ximagesink_set_xwindow_id), (gst_ximagesink_init): Implementing
the bufferalloc_function to replace bufferpools, fixing the XOverlay
interface implementation to handle xid being 0 and fix some bugs
triggered by Benjamin's testcase.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_chain),
(gst_xvimagesink_buffer_free), (gst_xvimagesink_buffer_alloc),
(gst_xvimagesink_set_xwindow_id), (gst_xvimagesink_init): Implementing
the bufferalloc_function to replace bufferpools, fixing the XOverlay
interface implementation to handle xid being 0 and fix some bugs
triggered by Benjamin's testcase.
Original commit message from CVS:
2004-01-09 Ronald Bultje <rbultje@ronald.bitfreak.net>
* ext/divx/gstdivxenc.c: (gst_divxenc_init):
Use explicit caps - fix capsnego.
* ext/xvid/gstxviddec.c:
* ext/xvid/gstxvidenc.c:
Remove macro-inside-macro which caused compile errors.
* gst-libs/gst/riff/riff-read.c: (gst_riff_read_header):
Error out if it's not a RIFF file. Else we error out without
gst_element_error() which is not good...
Original commit message from CVS:
* examples/gstplay/Makefile.am: Adding the interface library.
* gst-libs/gst/play/Makefile.am: Adding the interface library.
* gst-libs/gst/play/gstplay.c: (gst_play_set_video_sink): Connecting tothe XOverlay size signal instead of GstVideoSink.
* gst-libs/gst/play/gstplay.h: Including the XOverlay interface to check GST_IS_X_OVERLAY before signal connect.
* gst-libs/gst/video/gstvideosink.c: (gst_videosink_class_init):
Removing the have_video_size signal.
* gst-libs/gst/video/gstvideosink.h: Removing the have_video_size signal and associated public method.
* sys/ximage/ximagesink.c: (gst_ximagesink_handle_xevents),
(gst_ximagesink_sinkconnect): Using XOverlay public method to fire size
signal.
* sys/xvideo/xvideosink.c: (gst_xvideosink_sinkconnect),
(gst_xvideosink_xwindow_new): Using XOverlay public method to fire size
signal.
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_sinkconnect):
Using XOverlay public method to fire size signal.
Original commit message from CVS:
* ext/dv/gstdvdec.c: (gst_dvdec_loop):
Fix caps negotiation.
* ext/dvdnav/dvdnavsrc.c: (dvdnavsrc_class_init),
(dvdnavsrc_update_buttoninfo), (dvdnavsrc_get),
(dvdnavsrc_get_event_mask), (dvdnav_handle_navigation_event),
(dvdnavsrc_event):
* ext/mpeg2dec/gstmpeg2dec.c:
* gst-libs/gst/navigation/navigation.c:
(gst_navigation_send_key_event), (gst_navigation_send_mouse_event):
* gst-libs/gst/navigation/navigation.h:
* gst/mpegstream/gstmpegdemux.c: (gst_mpeg_demux_handle_src_event):
* sys/ximage/ximagesink.c: (gst_ximagesink_handle_xevents):
* sys/xvimage/xvimagesink.c: (gst_xvimagesink_handle_xevents):
Super-simple first version of mouse and keyboard events. Clicking
on a DVD menu now works, although it may not take you where you
expected.
* gst/sine/gstsinesrc.c: (gst_sinesrc_src_fixate):
* gst/videotestsrc/gstvideotestsrc.c:
(gst_videotestsrc_src_fixate):
These fixate functions were broken - they never actually
fixated :)
Original commit message from CVS:
2004-01-06 Ronald Bultje <rbultje@ronald.bitfreak.net>
* ext/shout/gstshout.c: (gst_icecastsend_base_init),
(gst_icecastsend_init):
fix for new caps system.
* gst-libs/gst/mixer/mixertrack.h:
* sys/oss/gstossmixer.c: (gst_ossmixer_build_list):
Add 'master track' flag (for tools like ACME that only want to
change the main volume).
Original commit message from CVS:
2004-01-04 Benjamin Otte <in7y118@public.uni-hamburg.de>
* gst-libs/gst/xoverlay/xoverlay.c: (gst_x_overlay_base_init),
(gst_x_overlay_got_xwindow_id), (gst_x_overlay_get_desired_size),
(gst_x_overlay_got_desired_size):
* gst-libs/gst/xoverlay/xoverlay.h:
Add optional "desired size" signal and querying.
Original commit message from CVS:
2004-01-01 Ronald Bultje <rbultje@ronald.bitfreak.net>
* configure.ac:
Fix configure check for mpeg2enc. We need 1.6.1.93 instead of
1.6.1.92, since the pkg-config file of 1.6.1.92 is borked and
it therefore uses the wrong include paths. Too bad... Note
that 1.6.1.93 is not release yet. ;).
Also add a check for mplex, which is now using the lib'ified
mplex from mjpegtools, too.
* ext/ffmpeg/gstffmpegcodecmap.c:
Add codec_tag for 3ivx/xvid. For xvid, this should fix playback
issues. I don't think ffmpeg handles 3ivx correctly, so this
probably won't work. But it won't hurt either.
* ext/ffmpeg/gstffmpegdec.c: (gst_ffmpegdec_connect),
(gst_ffmpegdec_chain):
* ext/ffmpeg/gstffmpegenc.c: (gst_ffmpegenc_connect),
(gst_ffmpegenc_chain_audio):
Fix memleak in audio encoding. Close codec if open fails, this
calls the cleanup routines so we can re-use the context.
* ext/mpeg2enc/gstmpeg2enc.cc:
Fix pad template names/types, fix memory issue with getcaps().
* ext/mpeg2enc/gstmpeg2encoder.cc:
* ext/mpeg2enc/gstmpeg2encoder.hh:
Fix compile issue with new caps system (const thingy).
* ext/mpeg2enc/gstmpeg2encpicturereader.cc:
* ext/mpeg2enc/gstmpeg2encpicturereader.hh:
We read a first frame right on initing, so that we have a caps
when we init the output. This caps is cached in padprivate and
read as first frame.
* ext/mplex/Makefile.am:
* ext/mplex/gstmplex.cc:
* ext/mplex/gstmplex.h:
* ext/mplex/gstmplex.hh:
* ext/mplex/gstmplexibitstream.cc:
* ext/mplex/gstmplexibitstream.hh:
* ext/mplex/gstmplexjob.cc:
* ext/mplex/gstmplexjob.hh:
* ext/mplex/gstmplexoutputstream.cc:
* ext/mplex/gstmplexoutputstream.hh:
We wrap mjpegtools mplex. So I rewrote the plugin. The old plugin
had issues, didn't do capsnego, supported only a subset of the
mplex features and required a mplex fork in our local CVS. Plus
that it worked agaist a very old mplex version. Rewriting was
faster than updating it.
* gst-libs/ext/Makefile.am:
* gst-libs/ext/mplex/INSTRUCT:
* gst-libs/ext/mplex/Makefile.am:
* gst-libs/ext/mplex/README:
* gst-libs/ext/mplex/TODO:
* gst-libs/ext/mplex/ac3strm_in.cc:
* gst-libs/ext/mplex/audiostrm.hh:
* gst-libs/ext/mplex/audiostrm_out.cc:
* gst-libs/ext/mplex/aunit.hh:
* gst-libs/ext/mplex/bits.cc:
* gst-libs/ext/mplex/bits.hh:
* gst-libs/ext/mplex/buffer.cc:
* gst-libs/ext/mplex/buffer.hh:
* gst-libs/ext/mplex/fastintfns.h:
* gst-libs/ext/mplex/format_codes.h:
* gst-libs/ext/mplex/inputstrm.cc:
* gst-libs/ext/mplex/inputstrm.hh:
* gst-libs/ext/mplex/lpcmstrm_in.cc:
* gst-libs/ext/mplex/mjpeg_logging.cc:
* gst-libs/ext/mplex/mjpeg_logging.h:
* gst-libs/ext/mplex/mjpeg_types.h:
* gst-libs/ext/mplex/mpastrm_in.cc:
* gst-libs/ext/mplex/mpegconsts.cc:
* gst-libs/ext/mplex/mpegconsts.h:
* gst-libs/ext/mplex/mplexconsts.hh:
* gst-libs/ext/mplex/multplex.cc:
* gst-libs/ext/mplex/outputstream.hh:
* gst-libs/ext/mplex/padstrm.cc:
* gst-libs/ext/mplex/padstrm.hh:
* gst-libs/ext/mplex/stillsstream.cc:
* gst-libs/ext/mplex/stillsstream.hh:
* gst-libs/ext/mplex/systems.cc:
* gst-libs/ext/mplex/systems.hh:
* gst-libs/ext/mplex/vector.cc:
* gst-libs/ext/mplex/vector.hh:
* gst-libs/ext/mplex/videostrm.hh:
* gst-libs/ext/mplex/videostrm_in.cc:
* gst-libs/ext/mplex/videostrm_out.cc:
* gst-libs/ext/mplex/yuv4mpeg.cc:
* gst-libs/ext/mplex/yuv4mpeg.h:
* gst-libs/ext/mplex/yuv4mpeg_intern.h:
* gst-libs/ext/mplex/yuv4mpeg_ratio.cc:
We don't fork mjpegtools' mplex in our CVS anymore.
* gst/avi/gstavidemux.c: (gst_avi_demux_src_getcaps),
(gst_avi_demux_add_stream):
* gst/avi/gstavidemux.h:
Add getcaps() function for proper caps nego. This makes some
parts of AVI playback/reading work.
* sys/ximage/ximagesink.c: (gst_ximagesink_sinkconnect):
Resize window on new capsnego. This is probably wrong, but
I'm still committing it because with current capsnego, the
first successfull capsnego is auto-fixated, therefore rounded
down to the lowest values in the caps. this results in a 16x16
XWindow that is not reized when real capsnego finishes.
Dave, I see more cases of this, do you know a proper solution?
* tools/gst-launch-ext.in:
Fix MPEG-4 AAC (Apple iPod/iTunes) file commandline.
Original commit message from CVS:
* examples/gstplay/player.c: (got_time_tick), (got_stream_length),
(got_video_size), (main): using g_print instead of g_message.
* gst-libs/gst/play/gstplay.c: (gst_play_pipeline_setup): Fixing EOS
signal which was not emitted because of "switch" element added to the
bin but not connected. (Removing from the bin temporarily)
Original commit message from CVS:
* configure.ac: X_DISPLAY_MISSING is set to 1 if AC_PATH_XTRA fails to
find X development files. I don't understand the previous tests and
they fail on my debian/ppc unstable. This one works.
* examples/gstplay/player.c: (main): Set the pipeline to READY before
exiting.
* gst-libs/gst/play/gstplay.c: (gst_play_get_length_callback),
(gst_play_set_video_sink), (gst_play_set_audio_sink),
(gst_play_set_visualization): Add some safety checks in set_ methods
and state_change. This was throwing some ugly CRITICAL messages when
pipeline was getting disposed and casts were failing.
Original commit message from CVS:
Sorry Dave... Add mpegversion=1 to mp3 caps everywhere so that the autoplugger uses mad and not faad for mp3 decoding. This should fix mp3 playback.
Original commit message from CVS:
tagging stuff and build fixes. In detail:
- make gdk-pixbuf loader work when distchecking
- fix invalid syntax in ffmpeg Makefile. wildcards for EXTRA_DIST are not allowed. This broke builds where distdir != srcdir
- fix ffmpeg cvs grabbing when srcdir != distdir
- new id3tag plugin for id3 tag reading/writing (uses mad's libid3tag)
- mad and libid3tag require mad/libid3tag v0.15. Fixed configure to require that
- added ogg demuxer in ext/ogg. The demuxer does not handle events yet. Especially getting seeking right will require some effort or code copying from libvorbis.
- added raw vorbis detection to typefinding. oggdemux requires a typefind function to detect its contents.
- tags plugin in gst/tags. Provides API in <gst/tags/gsttagediting.h>. API includes tag matching GStreamer <=> ID3 and GStreamer <=> vorbis and writing/reading vorbiscomments or ID3v1 tags. Also included is a simple vorbiscomment reader/writer. Writing will not really work though until someone writes oggmux.
- various build fixes. Mostly missing (DIST)CLEANFILES.
- vorbisenc handles tag writing.
Now it's YOUR turn to fix and write more plugins that handle writing/reading of tags. :)
Original commit message from CVS:
make colorspace handle the original RGB format, too, since it handles both. Add the template caps for the reverse format to video.h
Original commit message from CVS:
Remove all config.h includes from header files, add it to each source file and remove duplicate config.h includes from several source files
Original commit message from CVS:
Don't set the actual video size in gst_video_sink_got_video_size().
This could probably be replaced once we handle pixel aspect ratios.
Original commit message from CVS:
Patch avcodec.h and wmadec.c to use flag1 and flag2 from context
The asfdemux calculates the 2 values and gives them to the decoder via the pad/caps
The ffdec_wmav1 & ffdec_wmav2 put them in the ffmpeg context before they start to decode the data
Original commit message from CVS:
Some prettification fixes to this interface... Make it look good, make it simple and make it more GObject'ific. This means that it now works largely almost the same as GObject (concerning arguments that you give to the functions, and layout of the virtual functions). I've also got an OSS implementation for this, but it needs one small change before I commit that. Expect that this weekend or so.
Original commit message from CVS:
first bunch of conversions to new plugin_init. Includes libs/gst, gst/id3, sys/oss, ext/gnomevfs, gst/typefind and ext/mad.
You guessed it, everything Rhythmbox needs ;)
fixed BMP typefind and made gnomevfs one plugin instead of two while doing this
Original commit message from CVS:
merge TYPEFIND branch. Major changes:
- totally reworked type(find) system
- all typefind functions are in gst/typefind now
- more typefind functions then before
- some plugins might fail to compile now because I don't have them installed and they
a) require bytestream or
b) haven't had their typefind fixed.
Please fix those plugins and put the typefind functions into gst/typefind if they don't have dependencies
Original commit message from CVS:
Add audio/x-id3 as a mimetype handled by mad.
Could also be a flac file apparently, but this allows it to work more times than it does currently
Original commit message from CVS:
Some interface implementations for video4linux/video4linux2 plugins:
* a Tuner interface, with which one can select inputs and stations. Audio
work is underway here, but unfinished.
* A Xoverlay interface with which one can do simple overlay. Similar to
the API of the v4l/Xv XFree86 extension. Widget implementation for
GTK-2.0 coming up in the sandbox.
* Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty
basic and maybe somewhat overdesigned. But it'll do for now.
Apart from these interfaces, there's also a loadable library 'xwindowlistener'
that listenes to X for the movement of a window and the overlap of other
windows. This is partly copied from xawtv (and thus partly GPL :(), but it's
needed for the xoverlay interface implementation in the v4l/v4l2 elements.
Lastly, some small changes to remove redundant properties from the v4l/v4l2
elements since these can be done much simpler. Comments appreciated!
Original commit message from CVS:
Make GstMixerTrack a GObject. I also want to make it emit several signals, starting work is in here but it's not fully implemented yet. for OSS, this will cause issues, but for ALSA, this is all automated.
Original commit message from CVS:
There was a floating doubt on the way visualization is written. We use 'z' everywhere now. Both in gst-player and libgstplay
Original commit message from CVS:
Corrected macro in medi-info-priv.h so that it follows ISO standards,
and removed broken return from void function in navigation.c
Original commit message from CVS:
Changing have_xid to have_video_out to match the new GstVideoSink parent object.
Adding have_vis_size.
Fixing gst_play_connect_visualisation
Original commit message from CVS:
Adding needed license information. The patch was reviewed and approved by
Christian Shaller. Ronald Bultje and Benjamin also responded with
comments.
Original commit message from CVS:
Remove .pc files from CLEANFILES, since it's done automatically by
automake during distclean instead of (incorrectly) during clean.
Original commit message from CVS:
Fix another instance of audio/raw -> audio/x-raw-int and
video/raw -> video/x-raw-{yuv,rgb}. There probably should
be a audio/x-raw-float for jacksink but I didn't add that.
Original commit message from CVS:
* actually recurse into sndfile if we are able
* big ladspa cleanups, mainly to comply with the buffer-frames caps property, but also general
cleanups
- the samplerate prop is gone, if you want to set it explicitly (as in for get-based plugins)
you need to use a filtered connection, just like with buffer-frames
* big float2int and int2float changes for buffer-frames compatibility - I think it's quite a bit
simpler
* make the ossclock general, add it to gstaudio, and use it in sndfile as well
i need to update mimetypes, but that's coming soon. there are some other plugins that don't
support buffer-frames, i guess i need to get around to fixing them as well.
Original commit message from CVS:
A big rewrite of the spec file and some ffmpeg disting fixes. The ffmpeg plugin still doesn't build for me, but I think I am getting close :)
Original commit message from CVS:
New mimetypes gone into effect today - this commit changes all old mimetypes over to the new mimetypes spec as described in the previous commit's document. Note: some plugins will break, some pipelines will break, expect HEAD to be broken or at least not 100% working for a few days, but don't forget to report bugs
Original commit message from CVS:
compatibility fix for new GST_DEBUG stuff.
Includes fixes for missing includes for config.h and unistd.h
I only ensured for plugins I can build that they work, so if some of them are still broken, you gotta fix them yourselves unfortunately.
Original commit message from CVS:
Fixing error message when a plugin is missing (gst-player -> libgstplay).
Pipeline state change on error is now done directly in error callback, there's still something weird with oss /dev/dsp ressource busy error.
Original commit message from CVS:
Error handling is inside and works :)
Mutexes have been removed. That should fix UI responsiveness problems on query_length. Please heavily test to check if they were really needed.
Some fixes in GClosures
Original commit message from CVS:
Corrected the configure.ac so it actually works. Updated some c files
so that they build on Solaris. This mostly involved supporting ISO
style variable-argument macros.
Original commit message from CVS:
Updated autogen.sh/configure.ac and various Makefiles to make the
configure script set up all gcc specific compiler arguments, rather
than hardcoding them in the Makefile.am files
