Hi all, Since 5.2, racket has been failing to build on some of Debian's less mainstream architectures where it had been building fine with 5.1.3. The failure scenario below is common among a few of the architectures (armel[0], s390[1], s390x[2])
[0]: https://buildd.debian.org/status/fetch.php?pkg=racket&arch=armel&ver=5.2.1%2Bdfsg1-1&stamp=1329603367 [1]: https://buildd.debian.org/status/fetch.php?pkg=racket&arch=s390&ver=5.2.1%2Bdfsg1-1&stamp=1329602283 [2]: https://buildd.debian.org/status/fetch.php?pkg=racket&arch=s390x&ver=5.2.1%2Bdfsg1-1&stamp=1329601933 make[4]: Entering directory `/build/racket-5.2.1+dfsg1/build/racket/gc2' mkdir xsrc/usr/bin/make xsrc/precomp.h make[5]: Entering directory `/build/racket-5.2.1+dfsg1/build/racket/gc2' env XFORM_PRECOMP=yes ../racketcgc -cqu /build/racket-5.2.1+dfsg1/src/racket/gc2/xform.rkt --setup . --cpp "gcc -E -I./.. -I/build/racket-5.2.1+dfsg1/src/racket/gc2/../include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 " --keep-lines -o xsrc/precomp.h /build/racket-5.2.1+dfsg1/src/racket/gc2/precomp.c ...d/racket-5.2.1+dfsg1/collects/racket/private/reqprov.rkt:161:8: expand: unbound identifier in module (in phase 1, transformer environment) in: recur-pre make[5]: *** [xsrc/precomp.h] Error 1 make[5]: Leaving directory `/build/racket-5.2.1+dfsg1/build/racket/gc2' I took a look at one of Debian's wiki pages[3] to see if there was any commonality among those architectures which could explain this. [3]: http://wiki.debian.org/ArchitectureSpecificsMemo They all, unlike many others, use unsigned char by default. Adding "-fsigned-char" to CFLAGS fixes the issue. So it seems something was added between 5.1.3 and 5.2 that is sensitive to char signedness but doesn't explicitly declare the sign for char, like a lot of the code base does. Cheers, -- James GPG Key: 4096R/331BA3DB 2011-12-05 James McCoy <james...@debian.org>
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