I am currently using the C compiler in GCC 4.2.2 to compile for the arm-elf target platform. I can build GCC successfully (only the C compiler) on a linux x86_64 host for an arm-elf target. I would like to know if it is possibe to build a version of GCC with C++ for the arm and is arm_elf the right target? Would I be better off using arm-none-eabi? What is the difference? Details of the error building the compilers are shown below. Thank you for all your help! --Rob For these $(TARGET) is arm-elf. The C++ compiler will not build for arm-elf. I am configuring the build like so: configure --prefix=$(PREFIX) --target=$(TARGET) --enable-languages="c,c++" --with-gnu-ld --with-gnu-as When I compile it get this error: configure: error: No support for this host/target combination. make[3]: *** [configure-target-libstdc++-v3] Error 1 Is this target just not complete or is it obselete? The other constraint for building is that I must disable libssp when I configure GCC. Without disabling libssp the compile/config produces these warnings and eventually fails: checking limits.h usability... no checking limits.h presence... yes configure: WARNING: limits.h: present but cannot be compiled configure: WARNING: limits.h: check for missing prerequisite headers? configure: WARNING: limits.h: see the Autoconf documentation configure: WARNING: limits.h: section "Present But Cannot Be Compiled" configure: WARNING: limits.h: proceeding with the preprocessor's result configure: WARNING: limits.h: in the future, the compiler will take precedence configure: WARNING: ## --------------------------------- ## configure: WARNING: ## Report this to the libssp lists. ## configure: WARNING: ## --------------------------------- ## checking for limits.h... yes /home/rje/vc/trunk/firmware/arm_common/extern/build/gcc/./gcc/xgcc -B/home/rje/vc/trunk/firmware/arm_common/extern/build/gcc/./gcc/ -B/home/rje/vc/trunk/firmware/arm_common/toolchain/arm-elf/bin/ -B/home/rje/vc/trunk/firmware/arm_common/toolchain/arm-elf/lib/ -isystem /home/rje/vc/trunk/firmware/arm_common/toolchain/arm-elf/include -isystem /home/rje/vc/trunk/firmware/arm_common/toolchain/arm-elf/sys-include -DHAVE_CONFIG_H -I. -I../../../../gcc/libssp -I. -Wall -O2 -g -O2 -MT ssp.lo -MD -MP -MF .deps/ssp.Tpo -c ../../../../gcc/libssp/ssp.c -o ssp.o ../../../../gcc/libssp/ssp.c: In function '__guard_setup': ../../../../gcc/libssp/ssp.c:70: warning: implicit declaration of function 'open' ../../../../gcc/libssp/ssp.c:70: error: 'O_RDONLY' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:70: error: (Each undeclared identifier is reported only once ../../../../gcc/libssp/ssp.c:70: error: for each function it appears in.) ../../../../gcc/libssp/ssp.c:73: error: 'ssize_t' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:73: error: expected ';' before 'size' ../../../../gcc/libssp/ssp.c:75: warning: implicit declaration of function 'close' ../../../../gcc/libssp/ssp.c:76: error: 'size' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c: At top level: ../../../../gcc/libssp/ssp.c:89: error: expected declaration specifiers or '...' before 'size_t' ../../../../gcc/libssp/ssp.c: In function 'fail': ../../../../gcc/libssp/ssp.c:100: error: 'O_WRONLY' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:104: error: 'size_t' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:104: error: expected ';' before 'progname_len' ../../../../gcc/libssp/ssp.c:107: error: 'progname_len' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:107: warning: implicit declaration of function 'strlen' ../../../../gcc/libssp/ssp.c:107: warning: incompatible implicit declaration of built-in function 'strlen' ../../../../gcc/libssp/ssp.c:108: error: 'len' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:108: error: 'msg1len' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:109: warning: implicit declaration of function 'alloca' ../../../../gcc/libssp/ssp.c:109: warning: incompatible implicit declaration of built-in function 'alloca' ../../../../gcc/libssp/ssp.c:111: warning: implicit declaration of function 'memcpy' ../../../../gcc/libssp/ssp.c:111: warning: incompatible implicit declaration of built-in function 'memcpy' ../../../../gcc/libssp/ssp.c:119: error: 'ssize_t' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:119: error: expected ';' before 'wrote' ../../../../gcc/libssp/ssp.c:120: error: 'wrote' undeclared (first use in this function) ../../../../gcc/libssp/ssp.c:151: warning: implicit declaration of function '_exit' ../../../../gcc/libssp/ssp.c:151: warning: incompatible implicit declaration of built-in function '_exit' ../../../../gcc/libssp/ssp.c: In function '__stack_chk_fail': ../../../../gcc/libssp/ssp.c:161: warning: incompatible implicit declaration of built-in function 'strlen' ../../../../gcc/libssp/ssp.c:161: warning: passing argument 2 of 'fail' makes pointer from integer without a cast ../../../../gcc/libssp/ssp.c:161: error: too many arguments to function 'fail' ../../../../gcc/libssp/ssp.c: In function '__chk_fail': ../../../../gcc/libssp/ssp.c:168: warning: incompatible implicit declaration of built-in function 'strlen' ../../../../gcc/libssp/ssp.c:168: warning: passing argument 2 of 'fail' makes pointer from integer without a cast ../../../../gcc/libssp/ssp.c:168: error: too many arguments to function 'fail' make[5]: *** [ssp.lo] Error 1 make[5]: Leaving directory `/home/rje/vc/trunk/firmware/arm_common/extern/build/gcc/arm-elf/libssp' make[4]: *** [all] Error 2 make[4]: Leaving directory `/home/rje/vc/trunk/firmware/arm_common/extern/build/gcc/arm-elf/libssp' make[3]: *** [all-target-libssp] Error 2 make[3]: Leaving directory `/home/rje/vc/trunk/firmware/arm_common/extern/build/gcc' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/rje/vc/trunk/firmware/arm_common/extern/build/gcc' make[1]: *** [arm-gcc] Error 2 make[1]: Leaving directory `/home/rje/vc/trunk/firmware/arm_common/extern' make: *** [tools] Error 2
