Hi, I buit a cross compiler for arm-none-eabi on x86 Ubuntu. The "make check" for GCC works fine and the testglue.c can be compiled. But when run "make check" for libstdc++, things go wrong. My gcc isn't able to compile testglue.c. I use newlib as c library. The error message is: Executing on host: /home/build/work/jenkins-daily-build/build-linux/gcc-final/gcc/xgcc -B/home/build/work/jenkins-daily-build/build-linux/gcc-final/gcc/ -w -fexceptions -c -mthumb -mcpu=cortex-m0 -O2 -o /home/build/work/jenkins-daily-build/build-linux/gcc-final/arm-none-eabi/libstdc++-v3/testsuite/testglue.o /usr/share/dejagnu/testglue.c (timeout = 300) /usr/share/dejagnu/testglue.c:1:19: fatal error: stdio.h: No such file or directory^M compilation terminated.^M compiler exited with status 1 output is: /usr/share/dejagnu/testglue.c:1:19: fatal error: stdio.h: No such file or directory^M compilation terminated.^M My configuration is: Configured with: /home/build/work/jenkins-daily-build/src/gcc/configure --build=i686-linux-gnu --host=i686-linux-gnu --target=arm-none-eabi --enable-extra-multilibs --enable-languages=c,c++ --enable-lto --enable-threads --enable-plugin --disable-decimal-float --disable-libffi --disable-libgomp --disable-libmudflap --disable-libquadmath --disable-libssp --disable-libstdcxx-pch --disable-nls --disable-shared --with-gnu-as --with-gnu-ld --with-newlib --prefix=/home/build/work/jenkins-daily-build/install-linux --with-headers=yes --with-sysroot=/home/build/work/jenkins-daily-build/install-linux/arm-none-eabi --with-gmp=/home/build/work/jenkins-daily-build/build-linux/host-libs/usr --with-mpfr=/home/build/work/jenkins-daily-build/build-linux/host-libs/usr --with-mpc=/home/build/work/jenkins-daily-build/build-linux/host-libs/usr --with-ppl=/home/build/work/jenkins-daily-build/build-linux/host-libs/usr --with-cloog=/home/build/work/jenkins-daily-build/build-linux/host-libs/usr --with-libelf=/home/build/work/jenkins-daily-build/build-linux/host-libs/usr --with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm' >From the message, it seems that the xgcc cannot find the header files path. But in fact, the header files are in path specified by --with-sysroot. So if GCC would get header files information from configuration, what's the right way to specify the configuration arguments? I also noticed that gcc/testsuite/gcc/site.exp has a line "set TEST_GCC_EXEC_PREFIX "/home/build/work/jenkins-daily-build/install-linux/lib/gcc/". If I put this line into libstdc++-v3/testsuite/site.exp, the testglue.c can be compiled and the libstdc++ regression test works fine. I know the "GCC_EXEC_PREFIX" is used in an unusual way in finding the directories to search for header files. So what's the reason we don't define it in libstdc++-v3/testsuite/site.exp just like what GCC does? Finally I also tried to pass arguments like "-isystem...." to xgcc through "wrap_compile_flags" in Dejagnu board description file and failed. This issue really makes me crazy. Could anybody please help me out of it. Thanks very much in advance. Best regards, Terry
