Hello, I am attempting to build GCC 11.2.0 in an isolated environment. First, I grabbed the Linux headers: make headers_install \ ARCH=x86_64 \ INSTALL_HDR_PATH=/bootstrap/usr Then, I built binutils: mkdir binutils-build && \ cd binutils-build && /build/binutils-2.38/configure \ --prefix=/bootstrap \ --with-sysroot=/bootstrap \ --disable-nls \ --disable-werror && \ make -j16 && \ make install Then, I built GCC using the host toolchain: mkdir /build/gcc-build && \ cd gcc-build && /build/gcc-11.2.0/configure \ --prefix=/bootstrap/ \ --host=x86_64-pc-linux-gnu \ --enable-languages=c,c++ \ --disable-bootstrap \ --disable-decimal-float \ --disable-fixed-point \ --disable-libatomic \ --disable-libgomp \ --disable-libitm \ --disable-libmpx \ --disable-libquadmath \ --disable-libsanitizer \ --disable-libssp \ --disable-libvtv \ --disable-lto \ --disable-multilib \ --disable-nls && \ make -j16 && \ make install Then, I built glibc using this GCC: mkdir glibc-build && \ cd glibc-build && \ /build/glibc-2.34/configure \ CC=/bootstrap/bin/gcc \ CFLAGS="-fno-stack-protector -O2" \ CPPFLAGS="-U_FORTIFY_SOURCE" \ --prefix=/bootstrap \ --with-sysroot=/bootstrap \ --with-headers=/bootstrap/usr/include &&\ make -j16 && \ make install This all works fine. I then build the following software: * GMP 6.21 * MPFR 4.10 * MPC 1.21 * tar 1.34 * bash 5.16 * coreutils 9.0 * curl 7.82 * zlib 1.2.11 * gzip 1.11 * sed 4.8 * grep 2.28 * gawk 5.11 * make 4.3 * xz 5.25 I use invocations similar to this for each entry on that list: ./configure \ CC=/bootstrap/bin/gcc \ CFLAGS="-Wl,-dynamic-linker=/bootstrap/lib/ld-linux-x86-64.so.2 -Wl,-rpath,/bootstrap/lib -I/bootstrap/include" \ --with-sysroot=/bootstrap \ --prefix=/bootstrap && \ make -j16 && \ make check && \ make install Now, I would like to build a fresh GCC using the previously build GCC, this glib, and the GMP/MPC/MPFR libraries I just built: /build/gcc-11.2.0/configure \ CFLAGS="-Wl,-dynamic-linker=/lib/ld-linux-x86-64.so.2 -Wl,-rpath,/lib -I/lib/gcc/x86_64-pc-linux-gnu/11.2.0/include -I/usr/include -I/usr/include/linux -I/lib/gcc/x86_64-pc-linux-gnu/11.2.0/include-fixed -B/bin" \ --prefix=/bootstrap/gcc \ --host=x86_64-pc-linux-gnu \ --with-sysroot=/bootstrap \ --enable-languages=c,c++ \ --disable-bootstrap \ --disable-decimal-float \ --disable-fixed-point \ --disable-libatomic \ --disable-libgomp \ --disable-libitm \ --disable-libmpx \ --disable-libquadmath \ --disable-libsanitizer \ --disable-libssp \ --disable-libvtv \ --disable-lto \ --disable-multilib \ --disable-nls && \ make -j16 && \ make install; Configure fails, complaining it cannot find `gmp.h`. In `config.log`, I observe the configure process appears to actually read the contents of this header from `/bootstrap/include/gmp.h`, but the preprocessor fails to expand `stddef.h` and `limits.h`, both of which I've verified are present in the provided include paths, along with gmp.h.
