Package: otp Version: 1:1.2.1-1 Usertags: goto-cc During a rebuild of all packages in a clean sid chroot (and cowbuilder+pbuilder) the build failed with the following error. Please note that we use our research compiler tool-chain (using tools from the cbmc package), which permits extended reporting on type inconsistencies at link time.
[...] gcc -O2 -Wall otp.o md5.o random.o -o otp error: conflicting function declarations "o_random" old definition in module otp file otp.c line 71 signed long int () new definition in module random file random.c line 363 signed int (void) Makefile:9: recipe for target 'otp' failed make[1]: *** [otp] Error 64 make[1]: Leaving directory '/srv/jenkins-slave/workspace/sid-goto-cc-otp/otp-1.2.1' debian/rules:19: recipe for target 'build-stamp' failed make: *** [build-stamp] Error 2 For any platform with sizeof(int)<sizeof(long), calls to o_random will yield partly undefined values. I shall assume that this is not intentional, as the values wouldn't follow any proper random distribution either. The reason lies in the following wrong declaration: http://sources.debian.net/src/otp/1:1.2.1-1/otp.c?hl=71#L71 Thus the use here http://sources.debian.net/src/otp/1:1.2.1-1/otp.c?hl=169#L169 will have several undefined bits, because o_random is actually implemented as follows: http://sources.debian.net/src/otp/1:1.2.1-1/random.c?hl=363#L363 Adjusting the declaration in line 169 of otp.c should fix the problem. Best, Michael
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