Hi. I'm trying to build gcc 4.7.0 on Debian squeeze.(gcc 4.4.5) I have compiled all the dependencies that I need(gmp, mpfr, mpc, ppl, and CLooG). they're all built into /usr/local. I have a ~/works/gcc/src directory which contains all the source files, and /build where I build. the full configuration command goes as follows: $ ../../src/gcc-4.7.0/configure --prefix=/usr/local/ \ --program-suffix=4.7 \ --enable-cloog-backend=isl \ --with-gmp=/usr/local/ \ --with-mpfr=/usr/local \ --with-mpc=/usr/local/ \ --with-cloog=/usr/local \ --with-ppl=/usr/local In midst of the compilation an error occurred. the error message goes: make[3]: Leaving directory `/home/niuzeta/works/gcc-4.7/build/gcc/gcc' mkdir -p -- i686-pc-linux-gnu/libgcc Checking multilib configuration for libgcc... . . checking for suffix of object files... configure: error: in `/home/niuzeta/works/gcc-4.7/build/gcc/i686-pc-linux-gnu/libgcc': configure: error: cannot compute suffix of object files: cannot compile so apparently it couldn't compute suffix of object files and could not compile. A gcc faq <http://gcc.gnu.org/wiki/FAQ#configure_suffix> has a section for this issue. It directed me to look at the config.log file at the path. so I looked at it. the first error happens as follows, now becoming relevant to the subject: configure:3418: $? = 0 configure:3407: /home/niuzeta/works/gcc-4.7/build/gcc/./gcc/xgcc -B/home/niuzeta/works/gcc-4.7/build/gcc/./gcc/ -B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/lib/ -isystem /usr/local/i686-pc-linux-gnu/include -isystem /usr/local/i686-pc-linux-gnu/sys-include -V >&5 xgcc: error: unrecognized command line option '-V' xgcc: fatal error: no input files configure:3418: $? = 1 there's an input file missing for xgcc. Following this are more errors with missing input file that ends with checking for suffix, the original error message that I encountered: configure:3437: $? = 1 configure:3625: checking for suffix of object files configure:3647: /home/niuzeta/works/gcc-4.7/build/gcc/./gcc/xgcc -B/home/niuzeta/works/gcc-4.7/build/gcc/./gcc/ -B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/lib/ -isystem /usr/local/i686-pc-linux-gnu/include -isystem /usr/local/i686-pc-linux-gnu/sys-include -c -g -O2 conftest.c >&5 /home/niuzeta/works/gcc-4.7/build/gcc/./gcc/cc1: error while loading shared libraries: libppl_c.so.4: cannot open shared object file: No such file or directory configure:3651: $? = 1 configure: failed program was: | /* confdefs.h */ . . . configure:3665: error: in `/home/niuzeta/works/gcc-4.7/build/gcc/i686-pc-linux-gnu/libgcc': configure:3668: error: cannot compute suffix of object files: cannot compile See `config.log' for more details. To my understanding, the previous operations had an exit status of 0, whatever it was. then the xgcc operation with a lot of options attached. but there's no input file. I have no idea why it had to reference '.' before going into gcc subdirectory, but this doesn't seem to have to do anything with any of the dependencies. the error message later says it failed to find shared object file libppl_c.so, but it is indeed in /usr/local/libs. I think the error on libppl_c is misleading because xgcc argument failed first and I think it caused the later error to occur. I am quite stumped and if anyone could shed an insight I would be grateful. -- View this message in context: http://gcc.1065356.n5.nabble.com/missing-xgcc-input-in-compiling-gcc-4-7-0-tp917425.html Sent from the gcc - Help mailing list archive at Nabble.com.
