Hi, gcc-4.7.2. build fails for native build on x86 with fatal error: usr/include/features.h:323:26: fatal error: bits/predefs.h: No such file or directory compilation terminated. Though "predefs.h" file is in the paths: /usr/include/i386-linux-gnu/bits/predefs.h /usr/include/predefs.h Configuration settings are: ./configure --prefix=/X86 --enable-languages=c \ --with-gmp=/home/prem/GCC/gmp-4.3.2 --with-mpfr=/home/prem/GCC/mpfr-3.1.2 \ --with-mpc=/home/prem/GCC/mpc-0.8.2 --with-as=/DRIVER/X86/bin/as --with-ld=/DRIVER/X86/bin/ld \ --with-ar=/DRIVER/X86/bin/ar --with-readelf=/DRIVER/X86/bin/readelf \ --with-addr2line=/DRIVER/X86/bin/addr2line --with-nm=/DRIVER/X86/bin/nm \ --enable-shared=libgcc --disable-multilib ####Following lines lines can be helpful ########### make[3]: Entering directory `/home/prem/GCC/gcc_build_x86/i686-pc-linux-gnu/libgcc' # If this is the top-level multilib, build all the other # multilibs. DEFINES='' HEADERS='../../../gcc-4.7.2/libgcc/config/i386/value-unwind.h' \ ../../../gcc-4.7.2/libgcc/mkheader.sh > tmp-libgcc_tm.h /bin/bash ../../../gcc-4.7.2/libgcc/../move-if-change tmp-libgcc_tm.h libgcc_tm.h echo timestamp > libgcc_tm.stamp /home/prem/GCC/gcc_build_x86/./gcc/xgcc -B/home/prem/GCC/gcc_build_x86/./gcc/ -B/DRIVER/X86/i686-pc-linux-gnu/bin/ -B/DRIVER/X86/i686-pc-linux-gnu/lib/ -isystem /DRIVER/X86/i686-pc-linux-gnu/include -isystem /DRIVER/X86/i686-pc-linux-gnu/sys-include -g -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fpic -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -fpic -I. -I. -I../.././gcc -I../../../gcc-4.7.2/libgcc -I../../../gcc-4.7.2/libgcc/. -I../../../gcc-4.7.2/libgcc/../gcc -I../../../gcc-4.7.2/libgcc/../include -I../../../gcc-4.7.2/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS -DUSE_TLS -o _muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c ../../../gcc-4.7.2/libgcc/libgcc2.c -fvisibility=hidden -DHIDE_EXPORTS In file included from /usr/include/stdio.h:28:0, from ../../../gcc-4.7.2/libgcc/../gcc/tsystem.h:88, from ../../../gcc-4.7.2/libgcc/libgcc2.c:29: /usr/include/features.h:323:26: fatal error: bits/predefs.h: No such file or directory compilation terminated. make[3]: *** [_muldi3.o] Error 1 make[3]: Leaving directory `/home/prem/GCC/gcc_build_x86/i686-pc-linux-gnu/libgcc' make[2]: *** [all-stage1-target-libgcc] Error 2 make[2]: Leaving directory `/home/prem/GCC/gcc_build_x86' make[1]: *** [stage1-bubble] Error 2 make[1]: Leaving directory `/home/prem/GCC/gcc_build_x86' make: *** [all] Error 2 Any help would be really appreciated. Regards, Sudha Sarita