Hi, I trying to compile cross compiler GCC 4.5.1 released by Microchip for targer PIC32MX. My linux system is x86 and glibc 2.9. This is my configure command line extracted by binary of microchip ../gcc/configure --target=pic32mx --program-prefix=xc32- --disable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch --disable-hosted-libstdcxx --enable-sgxx-sde-multilibs --disable-threads --with-gnu-as --with-gnu-ld --disable-sim --disable-bootstrap --enable-obsolete --disable-__cxa_atexit --disable-libfortran --enable-languages=c --disable-shared --with-newlib --disable-nls --prefix=/opt/microchip/xc32 --disable-libgomp --without-headers --disable-libffi --enable-gofast --enable-poison-system-directories --libexecdir=/opt/microchip/xc32/pic32mx/bin --with-dwarf2 --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' --with-libelf --enable-lto --with-gmp --with-ppl --with-cloog --with-bugurl=http://www.microchip.com/support But I can't compile it. The file stddef.h is not missing. /tmp/XC32-v100-src> find . -name stddef.h -ls 1950781 4 -rw-r--r-- 1 user users 1311 Jan 19 17:59 ./gcc/libstdc++-v3/include/c_compatibility/stddef.h 2038638 16 -rw-r--r-- 1 user users 12542 Jan 19 18:03 ./gcc/gcc/ginclude/stddef.h /tmp/XC32-v100-src/buildgcc/./gcc/xgcc -B/tmp/XC32-v100-src/buildgcc/./gcc/ -B/opt/microchip/xc32/pic32mx/bin/ -B/opt/microchip/xc32/pic32mx/lib/ -isystem /opt/microchip/xc32/pic32mx/include -isystem /opt/microchip/xc32/pic32mx/sys-include -g -O2 -Os -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -G 0 -fno-optimize-sibling-calls -mcode-xonly -Os -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../.././gcc -I../../../../gcc/libgcc -I../../../../gcc/libgcc/. -I../../../../gcc/libgcc/../gcc -I../../../../gcc/libgcc/../include -DHAVE_CC_TLS -DUSE_EMUTLS -o _m16stubdc10.o -MT _m16stubdc10.o -MD -MP -MF _m16stubdc10.dep -DL_m16stubdc10 -xassembler-with-cpp \ -c ../../../../gcc/libgcc/../gcc/config/mips/mips16.S /tmp/XC32-v100-src/buildgcc/./gcc/xgcc -B/tmp/XC32-v100-src/buildgcc/./gcc/ -B/opt/microchip/xc32/pic32mx/bin/ -B/opt/microchip/xc32/pic32mx/lib/ -isystem /opt/microchip/xc32/pic32mx/include -isystem /opt/microchip/xc32/pic32mx/sys-include -g -O2 -Os -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -G 0 -fno-optimize-sibling-calls -mcode-xonly -Os -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../.././gcc -I../../../../gcc/libgcc -I../../../../gcc/libgcc/. -I../../../../gcc/libgcc/../gcc -I../../../../gcc/libgcc/../include -DHAVE_CC_TLS -DUSE_EMUTLS -o _muldi3.o -MT _muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c ../../../../gcc/libgcc/../gcc/libgcc2.c \ In file included from ../../../../gcc/libgcc/../gcc/libgcc2.c:29:0: ../../../../gcc/libgcc/../gcc/tsystem.h:44:20: fatal error: stddef.h: No such file or directory compilation terminated. make[4]: *** [_muldi3.o] Error 1 make[4]: Leaving directory `/tmp/XC32-v100-src/buildgcc/pic32mx/size/libgcc' make[3]: *** [multi-do] Error 1 make[3]: Leaving directory `/tmp/XC32-v100-src/buildgcc/pic32mx/libgcc' make[2]: *** [all-multi] Error 2 make[2]: Leaving directory `/tmp/XC32-v100-src/buildgcc/pic32mx/libgcc' make[1]: *** [all-target-libgcc] Error 2 make[1]: Leaving directory `/tmp/XC32-v100-src/buildgcc' make: *** [all] Error 2 Thank you Giovanni
