我已使用gcc 8.3.0在macOS Mojave 10.14.4系统上安装了最新的homebrew：
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/Cellar/gcc/8.3.0/libexec/gcc/x86_64-apple-darwin18.2.0/8.3.0/lto-wrapper
Target: x86_64-apple-darwin18.2.0
Configured with: ../configure --build=x86_64-apple-darwin18.2.0 --prefix=/usr/local/Cellar/gcc/8.3.0 --libdir=/usr/local/Cellar/gcc/8.3.0/lib/gcc/8 --disable-nls --enable-checking=release --enable-languages=c,c++,objc,obj-c++,fortran --program-suffix=-8 --with-gmp=/usr/local/opt/gmp --with-mpfr=/usr/local/opt/mpfr --with-mpc=/usr/local/opt/libmpc --with-isl=/usr/local/opt/isl --with-system-zlib --with-pkgversion='Homebrew GCC 8.3.0' --with-bugurl=https://github.com/Homebrew/homebrew-core/issues --disable-multilib --with-native-system-header-dir=/usr/include --with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
Thread model: posix
gcc version 8.3.0 (Homebrew GCC 8.3.0)
还安装了最新版本的XCode和命令行工具：
$ xcode-select -p
/Applications/Xcode.app/Contents/Developer
因此，我有下面的伪hello.c代码：
#include <stdio.h>
int main(int argc, char *argv[]) {
printf("Hello world!\n");
return 0;
}
我使用以下虚拟命令进行编译：
$ gcc -o hello hello.c
我收到以下错误：
collect2: fatal error: ld terminated with signal
11 [Segmentation fault: 11] compilation terminated.
ld: unexpected token: !tapi-tbd-v3 file '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/lib/libSystem.tbd' for architecture x86_64
这个“虚拟”问题足以表明我无法在系统上使用GNU gcc编译更复杂的东西（使用makefile）。
是GNU gcc与LLVM ld链接器搞混了吗？
有任何提示吗？