Package: src:seyon
Version: 2.20c-32
Severity: normal
Tags: sid bullseye
User: debian-...@lists.debian.org
Usertags: ftbfs-gcc-10

Please keep this issue open in the bug tracker for the package it
was filed for.  If a fix in another package is required, please
file a bug for the other package (or clone), and add a block in this
package. Please keep the issue open until the package can be built in
a follow-up test rebuild.

The package fails to build in a test rebuild on at least amd64 with
gcc-10/g++-10, but succeeds to build with gcc-9/g++-9. The
severity of this report will be raised before the bullseye release,
so nothing has to be done for the buster release.

The full build log can be found at:
http://people.debian.org/~doko/logs/gcc10-20200225/seyon_2.20c-32_unstable_gcc10.log
The last lines of the build log are at the end of this report.

To build with GCC 10, either set CC=gcc-10 CXX=g++-10 explicitly,
or install the gcc, g++, gfortran, ... packages from experimental.

  apt-get -t=experimental install g++ 

Common build failures are new warnings resulting in build failures with
-Werror turned on, or new/dropped symbols in Debian symbols files.
For other C/C++ related build failures see the porting guide at
http://gcc.gnu.org/gcc-10/porting_to.html

[...]
SeTrans.c: In function ‘DoTransfer’:
SeTrans.c:30:19: note: subobject ‘command’ declared here
   30 |   char            command[REG_BUF];
      |                   ^~~~~~~
In file included from /usr/include/string.h:495,
                 from /usr/include/X11/Intrinsic.h:61,
                 from SeTrans.c:10:
In function ‘strncpy’,
    inlined from ‘DoTransfer’ at SeTrans.c:104:5:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: warning: 
‘__builtin_strncpy’ offset [296, 1023] from the object at ‘<unknown>’ is out of 
the bounds of referenced subobject ‘command’ with type ‘char[256]’ at offset 40 
[-Warray-bounds]
  106 |   return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SeTrans.c: In function ‘DoTransfer’:
SeTrans.c:30:19: note: subobject ‘command’ declared here
   30 |   char            command[REG_BUF];
      |                   ^~~~~~~
In file included from /usr/include/string.h:495,
                 from /usr/include/X11/Intrinsic.h:61,
                 from SeTrans.c:10:
In function ‘strncpy’,
    inlined from ‘exec_upload’ at SeTrans.c:146:3:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: warning: 
‘__builtin_strncpy’ specified bound 256 equals destination size 
[-Wstringop-truncation]
  106 |   return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In function ‘strncpy’,
    inlined from ‘TopTransfer’ at SeTrans.c:54:5:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: warning: 
‘__builtin_strncpy’ specified bound 256 equals destination size 
[-Wstringop-truncation]
  106 |   return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcc  -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong 
-Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 
-fno-strict-aliasing -Wall        -Dlinux -D__amd64__ -D_POSIX_C_SOURCE=199309L 
                            -D_POSIX_SOURCE -D_XOPEN_SOURCE                     
            -D_BSD_SOURCE -D_SVID_SOURCE                                 
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64                                      
                             -DFUNCPROTO=15 -DNARROWPROTO     -Wdate-time 
-D_FORTIFY_SOURCE=2  -c -o SeWin.o SeWin.c
In file included from /usr/include/x86_64-linux-gnu/sys/types.h:25,
                 from /usr/include/X11/Xlib.h:38,
                 from /usr/include/X11/Intrinsic.h:53,
                 from SeWin.c:20:
/usr/include/features.h:185:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE 
are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
  185 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use 
_DEFAULT_SOURCE"
      |   ^~~~~~~
In file included from /usr/include/string.h:495,
                 from /usr/include/X11/Intrinsic.h:61,
                 from SeWin.c:20:
In function ‘strncpy’,
    inlined from ‘GetValueDispatchProc’ at SeWin.c:380:3:
/usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: warning: 
‘__builtin_strncpy’ specified bound 256 equals destination size 
[-Wstringop-truncation]
  106 |   return __builtin___strncpy_chk (__dest, __src, __len, __bos (__dest));
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcc  -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong 
-Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 
-fno-strict-aliasing -Wall        -Dlinux -D__amd64__ -D_POSIX_C_SOURCE=199309L 
                            -D_POSIX_SOURCE -D_XOPEN_SOURCE                     
            -D_BSD_SOURCE -D_SVID_SOURCE                                 
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64                                      
                             -DFUNCPROTO=15 -DNARROWPROTO     -Wdate-time 
-D_FORTIFY_SOURCE=2  -c -o MultiList.o MultiList.c
In file included from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
                 from /usr/include/stdio.h:27,
                 from MultiList.c:54:
/usr/include/features.h:185:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE 
are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
  185 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use 
_DEFAULT_SOURCE"
      |   ^~~~~~~
MultiList.c: In function ‘Notify’:
MultiList.c:1433:13: warning: writing 1 byte into a region of size 0 
[-Wstringop-overflow=]
 1433 |   buffer[0] = '\0';
      |   ~~~~~~~~~~^~~~~~
MultiList.c:1432:20: note: at offset 0 to an object with size 0 allocated by 
‘malloc’ here
 1432 |   buffer = (char *)malloc(byte_count);
      |                    ^~~~~~~~~~~~~~~~~~
rm -f seyon
gcc -o seyon  -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. 
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time 
-D_FORTIFY_SOURCE=2 -fno-strict-aliasing -Wall    -Wl,-z,relro  Seyon.o 
SeActions.o SeScan.o SeDial.o SeErr.o SeGeneric.o              SeInit.o SeIo.o 
SeMisc.o SeParse.o SePort.o SeScript.o          SeSet.o SeSig.o SeString.o 
SeSubs.o SeSubsX.o SeSupp.o          SeTerm.o SeTrans.o SeWin.o MultiList.o 
-lXaw -lXmu -lXt -lSM -lICE -lXpm  -lXext -lX11      
/usr/bin/ld: SeTrans.o:./SeTrans.c:35: multiple definition of `mlw'; 
SeDial.o:./SeDial.c:68: first defined here
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1060: seyon] Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
dh_auto_build: error: make -j1 LOCAL_LDFLAGS=-Wl,-z,relro CDEBUGFLAGS= 
"CCOPTIONS=-g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. 
-fstack-protector-strong -Wformat -Werror=format-security -Wdate-time 
-D_FORTIFY_SOURCE=2 -fno-strict-aliasing -Wall" returned exit code 2
make[1]: *** [debian/rules:7: override_dh_auto_build] Error 25
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:3: build] Error 2
dpkg-buildpackage: error: debian/rules build subprocess returned exit status 2

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