Bug#455659: FTBFS with GCC 4.3: #define redefined
Package: soundmodem
Version: 0.10-2
Usertags: ftbfs-gcc-4.3
Your package fails to build with GCC 4.3. Version 4.3 has not been
released yet but I'm building with a snapshot in order to find errors
and give people an advance warning. GCC 4.3 has converted a number
of warnings into errors. With GCC 4.3, you're no longer to
just redefine a previous #define. You need to either avoid
redefinitions directly or to use #ifndef to make sure that something
has not been defined already. See
http://www.cyrius.com/journal/gcc/gcc-4.3-pedwarn.html
You can reproduce this problem with gcc-snapshot from unstable. Note
that Red Hat, Novell and Ubuntu have done some work getting packages
to build with GCC 4.3 so there might be patches floating around
somewhere. I suggest you talk to your upstream.
> Automatic build of soundmodem_0.10-2 on em64t by sbuild/amd64 0.53
...
> gcc -g -O2 -Wall -O2 -o genpsptbl genpsptbl.o ../matlib/libmat.a -lm
> if g++ -DHAVE_CONFIG_H -I. -I. -I.. -I../soundcard -I../matlib -I../libmisc -I. -g -O2 -Wall -O2 -MT gendf9icfilt.o -MD -MP -MF ".deps/gendf9icfilt.Tpo" -c -o gendf9icfilt.o gendf9icfilt.cc; \
> then mv -f ".deps/gendf9icfilt.Tpo" ".deps/gendf9icfilt.Po"; else rm -f ".deps/gendf9icfilt.Tpo"; exit 1; fi
> In file included from gendf9icfilt.cc:40:
> ../libmisc/raisedcosine.h:28:1: error: "_GNU_SOURCE" redefined
> <command-line>: error: this is the location of the previous definition
> make[3]: *** [gendf9icfilt.o] Error 1
> make[3]: Leaving directory `/build/tbm/soundmodem-0.10/fsk'
--
Martin Michlmayr
http://www.cyrius.com/
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