Package: less Version: 458-2 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 -Wl,-z,relro -o less main.o screen.o brac.o ch.o charset.o cmdbuf.o command.o cvt.o decode.o edit.o filename.o forwback.o help.o ifile.o input.o jump.o line.o linenum.o lsystem.o mark.o optfunc.o option.o opttbl.o os.o output.o pattern.o position.o prompt.o search.o signal.o tags.o ttyin.o version.o -ltinfo file opttbl.c line 42: error: conflicting types for variable "jump_sline_fraction" old definition in module optfunc file optfunc.c line 49 signed int new definition in module opttbl file opttbl.c line 42 signed long int Makefile:57: recipe for target 'less' failed make[1]: *** [less] Error 64 make[1]: Leaving directory '/srv/jenkins-slave/workspace/sid-goto-cc-less/less-458' debian/rules:31: recipe for target 'build-stamp' failed make: *** [build-stamp] Error 2 This error refers to the following declaration: http://sources.debian.net/src/less/458-2/optfunc.c?hl=49#L49 that is inconsistent with the actual definition: http://sources.debian.net/src/less/458-2/opttbl.c?hl=42#L42 Fixing the declaration in optfunc.c will ensure no undefined behaviour arises - especially big endian systems might yield a lot of fun here as the wrong bytes of memory might be used for values that otherwise fit the size of an int. Best, Michael
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