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  • Bug#1066675: pvrg-jpeg: FTBFS: codec.c:120:15: error: implicit declarat

    From Lucas Nussbaum@21:1/5 to All on Wed Mar 13 14:40:01 2024
    Source: pvrg-jpeg
    Version: 1.2.1+dfsg1-6
    Severity: serious
    Justification: FTBFS
    Tags: trixie sid ftbfs
    User: lucas@debian.org
    Usertags: ftbfs-20240313 ftbfs-trixie ftbfs-impfuncdef

    Hi,

    During a rebuild of all packages in sid, your package failed to build
    on amd64.

    This is most likely caused by a change in dpkg 1.22.6, that enabled -Werror=implicit-function-declaration. For more information, see https://wiki.debian.org/qa.debian.org/FTBFS#A2024-03-13_-Werror.3Dimplicit-function-declaration

    Relevant part (hopefully):
    /usr/bin/cc -DNOTRUNCATE -DSYSV -I/<<PKGBUILDDIR>> -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_
    FORTIFY_SOURCE=2 -MD -MT CMakeFiles/pvrg-jpeg.dir/chendct.o -MF CMakeFiles/pvrg-jpeg.dir/chendct.o.d -o CMakeFiles/pvrg-jpeg.dir/chendct.o -c /<<PKGBUILDDIR>>/chendct.c
    /<<PKGBUILDDIR>>/codec.c: In function ‘FrequencyAC’: /<<PKGBUILDDIR>>/codec.c:120:15: error: implicit declaration of function ‘abs’ [-Werror=implicit-function-declaration]
    120 | cofac = abs(matrix[k]); /* Find absolute size */
    | ^~~
    /<<PKGBUILDDIR>>/codec.c:33:1: note: include ‘<stdlib.h>’ or provide a declaration of ‘abs’
    32 | #include "csize.h"
    +++ |+#include <stdlib.h>
    33 |
    /<<PKGBUILDDIR>>/marker.c:206:1: warning: return type defaults to ‘int’ [-Wimplicit-int]
    206 | WriteDnl()
    | ^~~~~~~~
    /<<PKGBUILDDIR>>/marker.c: In function ‘ReadSof’: /<<PKGBUILDDIR>>/marker.c:369:12: error: implicit declaration of function ‘bgetw’; did you mean ‘bgetc’? [-Werror=implicit-function-declaration]
    369 | Length = bgetw();
    | ^~~~~
    | bgetc
    /<<PKGBUILDDIR>>/jpeg.c: In function ‘JpegEncodeScan’: /<<PKGBUILDDIR>>/huffman.c: In function ‘UseDCHuffmanCheckingGEMSBug’: /<<PKGBUILDDIR>>/jpeg.c:817:9: error: implicit declaration of function ‘WriteDnl’; did you mean ‘WriteDht’? [-Werror=implicit-function-declaration]
    817 | WriteDnl(); /* Automatically write a dnl if no resync is enabled.*/
    | ^~~~~~~~
    | WriteDht
    /<<PKGBUILDDIR>>/marker.c: In function ‘CheckMarker’: /<<PKGBUILDDIR>>/huffman.c:714:14: warning: too many arguments for format [-Wformat-extra-args]
    714 | printf("GE table selection bug detected - assuming predictor bug also\n",index);
    | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /<<PKGBUILDDIR>>/marker.c:604:12: error: implicit declaration of function ‘brtell’; did you mean ‘mrtell’? [-Werror=implicit-function-declaration]
    604 | Length = brtell();
    | ^~~~~~
    | mrtell
    /<<PKGBUILDDIR>>/marker.c:609:7: error: implicit declaration of function ‘brseek’; did you mean ‘mrseek’? [-Werror=implicit-function-declaration]
    609 | brseek(Length,0L);
    | ^~~~~~
    | mrseek
    /<<PKGBUILDDIR>>/jpeg.c: In function ‘JpegLosslessDecodeScan’: /<<PKGBUILDDIR>>/jpeg.c:1493:15: error: implicit declaration of function ‘CheckMarker’ [-Werror=implicit-function-declaration]
    1493 | if (CheckMarker()==0xdc)
    | ^~~~~~~~~~~
    /<<PKGBUILDDIR>>/io.c: In function ‘SeekEndIob’: /<<PKGBUILDDIR>>/io.c:789:11: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    789 | write(Iob->file,Terminator,1);
    | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /<<PKGBUILDDIR>>/io.c: In function ‘TerminateFile’: /<<PKGBUILDDIR>>/io.c:945:19: warning: ignoring return value of ‘write’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    945 | write(CScan->Iob[i]->file,Terminator,1);
    | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    [ 83%] Building C object CMakeFiles/pvrg-jpeg.dir/transform.o
    /usr/bin/cc -DNOTRUNCATE -DSYSV -I/<<PKGBUILDDIR>> -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_
    FORTIFY_SOURCE=2 -MD -MT CMakeFiles/pvrg-jpeg.dir/transform.o -MF CMakeFiles/pvrg-jpeg.dir/transform.o.d -o CMakeFiles/pvrg-jpeg.dir/transform.o -c /<<PKGBUILDDIR>>/transform.c
    cc1: some warnings being treated as errors
    [ 91%] Building C object CMakeFiles/pvrg-jpeg.dir/lexer.o
    /usr/bin/cc -DNOTRUNCATE -DSYSV -I/<<PKGBUILDDIR>> -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wdate-time -D_
    FORTIFY_SOURCE=2 -MD -MT CMakeFiles/pvrg-jpeg.dir/lexer.o -MF CMakeFiles/pvrg-jpeg.dir/lexer.o.d -o CMakeFiles/pvrg-jpeg.dir/lexer.o -c /<<PKGBUILDDIR>>/obj-x86_64-linux-gnu/lexer.c
    make[3]: *** [CMakeFiles/pvrg-jpeg.dir/build.make:97: CMakeFiles/pvrg-jpeg.dir/codec.o] Error 1


    The full build log is available from: http://qa-logs.debian.net/2024/03/13/pvrg-jpeg_1.2.1+dfsg1-6_unstable.log

    All bugs filed during this archive rebuild are listed at: https://bugs.debian.org/cgi-bin/pkgreport.cgi?tag=ftbfs-20240313;users=lucas@debian.org
    or: https://udd.debian.org/bugs/?release=na&merged=ign&fnewerval=7&flastmodval=7&fusertag=only&fusertagtag=ftbfs-20240313&fusertaguser=lucas@debian.org&allbugs=1&cseverity=1&ctags=1&caffected=1#results

    A list of current common problems and possible solutions is available at http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute!

    If you reassign this bug to another package, please mark it as 'affects'-ing this package. See https://www.debian.org/Bugs/server-control#affects

    If you fail to reproduce this, please provide a build log and diff it with mine so that we can identify if something relevant changed in the meantime.

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