On Thu, Feb 28, 2013 at 03:33:17PM +0100, Roland Stigge wrote: > insighttoolkit4 FTBFS on powerpcspe[1] like this: > > [...] > [ 44%] Building C object > Modules/ThirdParty/TIFF/src/itktiff/CMakeFiles/itktiff.dir/tif_predict.c.o > cd /«PKGBUILDDIR»/BUILD/Modules/ThirdParty/TIFF/src/itktiff && /usr/bin/gcc > -Ditktiff_EXPORTS -DJPEG_SUPPORT -DZIP_SUPPORT -D_HPUX_SOURCE -g -O2 > -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security > -D_FORTIFY_SOURCE=2 -Wno-uninitialized -Wno-unused-parameter -Wall > -Wcast-align -Wdisabled-optimization -Wextra -Wformat=2 -Winvalid-pch > -Wno-format-nonliteral -Wpointer-arith -Wshadow -Wunused -Wwrite-strings > -funit-at-a-time -Wno-strict-overflow -w -fno-strict-aliasing -O3 -DNDEBUG > -fPIC -I/«PKGBUILDDIR»/BUILD/Modules/ThirdParty/TIFF/src/itktiff > -I/«PKGBUILDDIR»/Modules/ThirdParty/TIFF/src/itktiff > -I/«PKGBUILDDIR»/BUILD/Modules/ThirdParty/JPEG/src > -I/«PKGBUILDDIR»/BUILD/Modules/ThirdParty/KWSys/src > -I/«PKGBUILDDIR»/BUILD/Modules/ThirdParty/ZLIB/src > -I/«PKGBUILDDIR»/BUILD/Modules/ThirdParty/TIFF/src > -I/«PKGBUILDDIR»/Modules/ThirdParty/TIFF/src -o > CMakeFiles/itktiff.dir/tif_predict.c.o -c /«PKGBUILDDIR»/ > Modules/ThirdParty/TIFF/src/itktiff/tif_predict.c > /«PKGBUILDDIR»/Modules/ThirdParty/TIFF/src/itktiff/tif_predict.c: In > function 'fpAcc': > /«PKGBUILDDIR»/Modules/ThirdParty/TIFF/src/itktiff/tif_predict.c:394:26: > error: #if with no expression > /«PKGBUILDDIR»/Modules/ThirdParty/TIFF/src/itktiff/tif_predict.c: In > function 'fpDiff': > /«PKGBUILDDIR»/Modules/ThirdParty/TIFF/src/itktiff/tif_predict.c:563:26: > error: #if with no expression > make[3]: *** > [Modules/ThirdParty/TIFF/src/itktiff/CMakeFiles/itktiff.dir/tif_predict.c.o] > Error 1 > make[3]: Leaving directory `/«PKGBUILDDIR»/BUILD' > make[2]: *** [Modules/ThirdParty/TIFF/src/itktiff/CMakeFiles/itktiff.dir/all] > Error 2 > make[2]: Leaving directory `/«PKGBUILDDIR»/BUILD' > make[1]: *** [all] Error 2 > make[1]: Leaving directory `/«PKGBUILDDIR»/BUILD' > dh_auto_build: make -j1 returned exit code 2 > make: *** [build-arch] Error 2 > dpkg-buildpackage: error: debian/rules build-arch gave error exit status 2 > [...] > > This is because of WORDS_BIGENDIAN (which is either defined or not) used as > "#if WORDS_BIGENDIAN".
That is has always been legal C preprocessor syntax (an undefined macro is "false") [1] so what has changed? [1] http://gcc.gnu.org/onlinedocs/cpp/If.html -Steve
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