Bug#664819: libav source build needs to link with -lgcrypt

[Dave Anglin]

Source: libav
Version: 4:0.8.1-1
Severity: normal

gcc -Llibavcodec -Llibavdevice -Llibavfilter -Llibavformat -Llibavutil -Llibpostproc -Llibswscale -Wl,--as-needed -Wl,--warn-common -Wl,-rpath-link=libpostproc:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil -o ffmpeg ff
mpeg.o cmdutils.o -lavdevice -lavfilter -lavformat -lavcodec -lpostproc -lswscale -lavutil -ldl -lX11 -lXext -lXfixes -lcdio_paranoia -lcdio_cdda -lcdio -ljack 
-lasound -ldc1394 -lraw1394 -lxvidcore -lx264 -lvpx -lvpx -lvorbisenc -lvorbis -logg -ltheoraenc -ltheoradec -logg -lspeex -lschroedinger-1.0 -lrtmp -lz -lgnutl
s -lpulse-simple -lpulse -lopenjpeg -lopencv_core -lopencv_imgproc -lopencv_high
gui -lopencv_ml -lopencv_video -lopencv_features2d -lopencv_calib3d -lopencv_obj
detect -lopencv_contrib -lopencv_legacy -lopencv_flann -lmp3lame -lgsm -lfreetyp
e -ldirac_encoder -ldirac_decoder -lstdc++ -lgnutls -lva -lm -pthread -lbz2 -lz 
/usr/bin/ld.bfd.real: libavformat/libavformat.a(network.o): undefined reference 
to symbol 'gcry_control@@GCRYPT_1.2'
/usr/bin/ld.bfd.real: note: 'gcry_control@@GCRYPT_1.2' is defined in DSO /lib/li
bgcrypt.so.11 so try adding it to the linker command line
/lib/libgcrypt.so.11: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make[1]: *** [ffmpeg] Error 1
make[1]: Leaving directory `/home/dave/debian/libav/libav-0.8.1/debian-static'
make: *** [build-stamp-static] Error 2

The following allows a successful build:

--- rules.save	2012-03-18 14:40:11.000000000 -0400
+++ rules	2012-03-20 19:08:22.000000000 -0400
@@ -46,6 +46,7 @@
 	dh_testdir
 	mkdir -p debian-$*
 	cd debian-$* && CFLAGS="$(CFLAGS)" CPPFLAGS="$(CPPFLAGS)" LDFLAGS="$(LDFLAGS)" $(CURDIR)/configure \
+		--extra-libs=-lgcrypt \
 		$($*_build_confflags) $(extra_$*_build_confflags)
 	touch $@
 


-- System Information:
Debian Release: wheezy/sid
  APT prefers unreleased
  APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: hppa (parisc64)

Kernel: Linux 3.2.11+ (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash