Cannot compile any C++ programs; error: unknown type name 'uint8_t'

问题

EDIT2: The problem was NOT a simple typographical error. I made a typo in the logs below, which I corrected, but the problem was still there.

EDIT: I mistakenly ran with gcc instead of g++, once, after attempting below. The problem was there before with g++ and it is there now.

I am currently on a MacOS High Sierra box. I recently moved a lot of files from a MacBook Air to this machine, including what I assume were all of Xcode's junk. Now, when I try to compile a very simple C++ program:

#include <iostream>

int main()
{
    // VAR_DEC
    int a = 4;
    // VAR_MANIP
    a = a*2;
    // VAR_PRINT
    std::cout << a << std::endl;
    return 0;
}

I get the following ridiculous error:

jrfarah@Josephs-MBP: [config_file_script] $ g++ test.cpp -o test
In file included from test.cpp:1:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/iostream:38:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/ios:216:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/__locale:15:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/string:470:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/string_view:171:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/__string:56:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/algorithm:640:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/memory:629:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/typeinfo:61:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/exception:82:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/cstdlib:86:
In file included from /Library/Developer/CommandLineTools/usr/include/c++/v1/stdlib.h:94:
In file included from /usr/include/stdlib.h:65:
In file included from /usr/include/sys/wait.h:110:
/usr/include/sys/resource.h:196:2: error: unknown type name 'uint8_t'
        uint8_t  ri_uuid[16];
        ^
/usr/include/sys/resource.h:197:2: error: unknown type name 'uint64_t'
        uint64_t ri_user_time;
        ^
/usr/include/sys/resource.h:198:2: error: unknown type name 'uint64_t'
        uint64_t ri_system_time;
        ^
/usr/include/sys/resource.h:199:2: error: unknown type name 'uint64_t'
        uint64_t ri_pkg_idle_wkups;
        ^
/usr/include/sys/resource.h:200:2: error: unknown type name 'uint64_t'
        uint64_t ri_interrupt_wkups;
        ^
/usr/include/sys/resource.h:201:2: error: unknown type name 'uint64_t'
        uint64_t ri_pageins;
        ^
/usr/include/sys/resource.h:202:2: error: unknown type name 'uint64_t'
        uint64_t ri_wired_size;
        ^
/usr/include/sys/resource.h:203:2: error: unknown type name 'uint64_t'
        uint64_t ri_resident_size;
        ^
/usr/include/sys/resource.h:204:2: error: unknown type name 'uint64_t'
        uint64_t ri_phys_footprint;
        ^
/usr/include/sys/resource.h:205:2: error: unknown type name 'uint64_t'
        uint64_t ri_proc_start_abstime;
        ^
/usr/include/sys/resource.h:206:2: error: unknown type name 'uint64_t'
        uint64_t ri_proc_exit_abstime;
        ^
/usr/include/sys/resource.h:210:2: error: unknown type name 'uint8_t'
        uint8_t  ri_uuid[16];
        ^
/usr/include/sys/resource.h:211:2: error: unknown type name 'uint64_t'
        uint64_t ri_user_time;
        ^
/usr/include/sys/resource.h:212:2: error: unknown type name 'uint64_t'
        uint64_t ri_system_time;
        ^
/usr/include/sys/resource.h:213:2: error: unknown type name 'uint64_t'
        uint64_t ri_pkg_idle_wkups;
        ^
/usr/include/sys/resource.h:214:2: error: unknown type name 'uint64_t'
        uint64_t ri_interrupt_wkups;
        ^
/usr/include/sys/resource.h:215:2: error: unknown type name 'uint64_t'
        uint64_t ri_pageins;
        ^
/usr/include/sys/resource.h:216:2: error: unknown type name 'uint64_t'
        uint64_t ri_wired_size;
        ^
/usr/include/sys/resource.h:217:2: error: unknown type name 'uint64_t'
        uint64_t ri_resident_size;
        ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

I've tried installing and reinstalling everything I could think of related to the problem, such as gcc, g++, cc, brew, Xcode, command-line-tools, etc. I've also tried all the suggestions on the following pages:

Unknown type name uint8_t?
Include search path on Mac OS X Yosemite 10.10.1
Cythonizing fails because of unknown type name 'uint64_t'
unknown type name 'uint8_t', MinGW
JT Bullitt's very comprehensive blog

and more, but those summarize it pretty well. None of the solutions have worked.

I think the last one has the most likely solution. (If you search for "unknown" on the page you'll see the fix.) According to the developer:

Fix: Remove /opt/local/include/** and /opt/local/lib/** from the "Header Search Paths" build settings. Replace them with much more specific paths to the desired include directories. In my particular case, this meant replacing them with /opt/local/include/glib-2.0 /opt/local/lib/glib-2.0/include /opt/local/include/. It's up and running again!

However, I didn't install Xcode, I only installed the command line developer tools. Therefore, I don't have an easy way to access the "Header Search Paths" build settings, and thus, I can't try out his solution.

I am looking for a solution to this problem, preferably one that doesn't require me installing the entire OS. Alternatively, if someone could kindly guide me through finding the build settings file, I would be very grateful.

回答1:

It's fairly obvious that you borked your system GCC installation. Please note that GCC is a suite of compilers and that G++ is the C++ front-end. Package managers often have a separate package called gcc-g++, however, when compiling from source, you simply do --enable-languages=c,c++. Now if reinstalling XCode doesn't resolve the problem (you should've already done this, if "it takes up too much space" just remove it), then you can try compiling GCC from source. Adapted from the GNU wiki: