FritzBox 6490: Compile error on libavcodec/x86/cabac.h

[Rainer5970]

I get this error if I try to choose minidlna package.

i686-linux-uclibc-gcc -I. -I./ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DHAVE_AV_CONFIG_H -march=atom -mtune=atom -Ofast -pipe -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Wl,-I/usr/lib/freetz/ld-uClibc.so.1   -std=c99 -Wdeclaration-after-statement -Wall -Wno-parentheses -Wno-switch -Wno-format-zero-length -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign -Wwrite-strings -Wtype-limits -Wundef -Wmissing-prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Os -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=return-type -Werror=vla  -MMD -MF libavcodec/h264_cavlc.d -MT libavcodec/h264_cavlc.o -c -o libavcodec/h264_cavlc.o libavcodec/h264_cavlc.c
In file included from libavcodec/cabac_functions.h:36:0,
                 from libavcodec/h264_cabac.c:33:
libavcodec/cabac_functions.h: In function 'get_cabac_noinline':
libavcodec/x86/cabac.h:169:5: error: 'asm' operand has impossible constraints
     __asm__ volatile(
     ^
make[1]: *** [common.mak:48: libavcodec/h264_cabac.o] Fehler 1
make[1]: *** Auf noch nicht beendete Prozesse wird gewartet …
make[1]: Verzeichnis „/home/xxxxxxx/git/freetz-ng/source/target-i686_gcc-5.5.0_uClibc-1.0.37-nptl/ffmpeg-1.2.12“ wird verlassen

ERROR: Build failed.

It's probably not the right conclusion that if I only choose ffmpeg w/o minidlna it'll compile?!

I read here that people are using minidlna, so it seems to be the specific 6490 box?

[fda77]

This is a x86 device and Assembler/asm commands are CPU specific. Most older avm devices are MIPS. The ffmpeg version in freetz seems to be from 2015 (https://ffmpeg.org/olddownload.html) and an update of it may fix the problem

[Rainer5970]

Thanks for your reply. From your link I've chosen the "latest" 3.3.9 and tweaked it into my freetz tree (hopefully right, mostly grep'ing about old '1.2.12')

i686-linux-uclibc-gcc -I. -I./ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DZLIB_CONST -DHAVE_AV_CONFIG_H -march=atom -mtune=atom -Ofast -pipe -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Wl,-I/usr/lib/freetz/ld-uClibc.so.1   -std=c11 -pthread -Wdeclaration-after-statement -Wall -Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wwrite-strings -Wtype-limits -Wundef -Wmissing-prototypes -Wno-pointer-to-int-cast -Wstrict-prototypes -Wempty-body -Wno-parentheses -Wno-switch -Wno-format-zero-length -Wno-pointer-sign -Os -fno-math-errno -fno-signed-zeros -fno-tree-vectorize -Werror=format-security -Werror=implicit-function-declaration -Werror=missing-prototypes -Werror=return-type -Werror=vla -Wformat -fdiagnostics-color=auto -Wno-maybe-uninitialized  -MMD -MF libavcodec/h264_cavlc.d -MT libavcodec/h264_cavlc.o -c -o libavcodec/h264_cavlc.o libavcodec/h264_cavlc.c
In file included from libavcodec/cabac_functions.h:46:0,
                 from libavcodec/h264_cabac.c:37:
libavcodec/cabac_functions.h: In function 'get_cabac_noinline':
libavcodec/x86/cabac.h:192:5: error: 'asm' operand has impossible constraints
     __asm__ volatile(
     ^
make[1]: *** [common.mak:60: libavcodec/h264_cabac.o] Fehler 1
make[1]: *** Auf noch nicht beendete Prozesse wird gewartet …
make[1]: Verzeichnis „/home/xxxxx/git/freetz-ng/source/target-i686_gcc-5.5.0_uClibc-1.0.37-nptl/ffmpeg-3.3.9“ wird verlassen

ERROR: Build failed.
make: *** [make/ffmpeg/ffmpeg.mk:95: source/target-i686_gcc-5.5.0_uClibc-1.0.37-nptl/ffmpeg-3.3.9/libavcodec/libavcodec.so.54] Fehler 1

So next try was to edit ffmpeg.mk and disable libavcodec and hey at least it compiles a bit longer but
stops at:

make[1]: Verzeichnis „/home/xxxxxx/git/freetz-ng/source/target-i686_gcc-5.5.0_uClibc-1.0.37-nptl/ffmpeg-3.3.9“ wird verlassen
sed -i -r -e "s,^(prefix=)(['"'"'"]?)([^'"'"'"]*)(\2)$,\1\2/home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc\3\4,g"  /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavcodec.pc /home/xxxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavdevice.pc /home/xxxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavfilter.pc /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavformat.pc /home/xxxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavutil.pc /home/xxxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libpostproc.pc /home/xxxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libswresample.pc /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libswscale.pc
sed: /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavcodec.pc kann nicht gelesen werden: Datei oder Verzeichnis nicht gefunden
sed: /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavdevice.pc kann nicht gelesen werden: Datei oder Verzeichnis nicht gefunden
sed: /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/pkgconfig/libavformat.pc kann nicht gelesen werden: Datei oder Verzeichnis nicht gefunden
make: *** [make/ffmpeg/ffmpeg.mk:100: /home/xxxxxx/git/freetz-ng/toolchain/build/i686_gcc-5.5.0_uClibc-1.0.37-nptl/i686-linux-uclibc/usr/lib/libavcodec.so.54.92.100] Fehler 2

Sounds that libavcodec is too essential to ignore it? Does ffmpeg make sense without it?

[fda77]

The question is:

• Either why do you want to change an non existing file
• Or why does the file you want to change does not exist

The files are defined in the .mk and the "call *_LA" does fixes the defined