Configure script processes nonexistent in/outdevs, de/muxers and de/encoders named "x"

[jamal]

Commit c73c87b made some cosmetic changes that broke the output of a sed regexp from the configure script, generating nonexistent components called "x".

Example of the configure script output on a default win32 build:

Enabled decoders:
aac			c93			indeo4
aac_latm		cavs			indeo5
[...]
ptx			tiff			x
qcelp			tmv			xan_dpcm
[...]

Enabled encoders:
a64multi		jpegls			png
a64multi5		ljpeg			ppm
[...]
flashsv			pcm_u16le		x
flashsv2		pcm_u24be		xbm
[...]

Enabled demuxers:
aac			iff			pcm_u32le
ac3			ilbc			pcm_u8
[...]
gxf			pcm_s32be		x
h261			pcm_s32le		xa
[...]

Enabled muxers:
a64			image2pipe		pcm_s16be
ac3			ipod			pcm_s16le
[...]
ico			pcm_f64le		x
ilbc			pcm_mulaw		yuv4mpegpipe
image2

Enabled indevs:
lavfi			vfwcap			x

Enabled outdevs:
x

You can see this all around FATE as well.

The problem is that the cosmetic changes made REGISTER_ENCDEC, REGISTER_MUXDEMUX and REGISTER_INOUTDEV be defined in more than one line.

Before

#define REGISTER_INOUTDEV(X,x)  REGISTER_OUTDEV(X,x); REGISTER_INDEV(X,x)

After

#define REGISTER_INOUTDEV(X, x)                                         \
    REGISTER_OUTDEV(X, x);                                              \
    REGISTER_INDEV(X, x)

Since the calls are in their own separate lines, the sed regexp processes them as components.

Easiest solution would be to put them again on a single line.

[Carl Eugen Hoyos]

Looks important to me.

[Clément Bœsch]

Haha!

Should be fixed in 613001d7, thanks for the report :)