多文件开发Import错误导致 clang: error: linker command failed with exit code 1 (use -v to see invocation)...

本文探讨了多文件开发中因import导致的Clang linker error问题。通过调整#import的位置,成功解决了错误,并保持了项目的正常构建。

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多文件开发中import 出错会 导致 clang: error: linker command failed with exit code 1 (use -v to see invocation)

从报错信息里发现是 num_5 num_1 的问题,检查代码发现:

独立添加一个头文件存放 num_5,num_1,类的实现里用到这两个量

//
//  Common.h
//  01_NSString
//
//

#ifndef Common_h
#define Common_h

int num_5 = 5;
int num_1 = 1;


#endif /* Common_h */
Common.h

类文件代码

//
//  Clip.h
//  01_NSString
//
//

#import <Foundation/Foundation.h>
#import "Common.h"

@interface Clip : NSObject
{
@public
    int _cbullet;
    int _times;
}

- (void)AddBullet1000;
@end
Clip.h
//
//  Clip.m
//  01_NSString
//
//

#import "Clip.h"

@implementation Clip
- (void)AddBullet1000
{
    _cbullet = num_5;
    _times = num_1;
}
@end
Clip.m

Clip.h中 #import "Common.h" 就会出现错误,将 #import "Common.h" 放进Clip.m 删除Clip.h 里的#import "Common.h“ ,Build Successed

至于为啥报错,还有待研究学习,有知道原因的请留言回复哈

 

转载于:https://www.cnblogs.com/aleuxqin/p/5321397.html

stellaechen@STELLAECHEN-MC1 ~ % make make: *** No targets specified and no makefile found. Stop. stellaechen@STELLAECHEN-MC1 ~ % cd download stellaechen@STELLAECHEN-MC1 download % cd Python-2.7.13 stellaechen@STELLAECHEN-MC1 Python-2.7.13 % make running build running build_ext building '_Qt' extension gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/stellaechen/download/Python-2.7.13/Mac/Include -I. -IInclude -I./Include -I/usr/local/include -I/Users/stellaechen/download/Python-2.7.13/Include -I/Users/stellaechen/download/Python-2.7.13 -c /Users/stellaechen/download/Python-2.7.13/Mac/Modules/qt/_Qtmodule.c -o build/temp.macosx-15.4-arm64-2.7/Users/stellaechen/download/Python-2.7.13/Mac/Modules/qt/_Qtmodule.o -Wno-deprecated-declarations /Users/stellaechen/download/Python-2.7.13/Mac/Modules/qt/_Qtmodule.c:28003:15: warning: variable 'm' set but not used [-Wunused-but-set-variable] 28003 | PyObject *m; | ^ 1 warning generated. gcc -bundle -undefined dynamic_lookup build/temp.macosx-15.4-arm64-2.7/Users/stellaechen/download/Python-2.7.13/Mac/Modules/qt/_Qtmodule.o -L/usr/local/lib -o build/lib.macosx-15.4-arm64-2.7/_Qt.so -framework QuickTime -framework Carbon ld: framework 'QuickTime' not found clang: error: linker command failed with exit code 1 (use -v to see invocation) building '_tkinter' extension gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DWITH_APPINIT=1 -I/System/Library/Frameworks/Tcl.framework/Headers -I/System/Library/Frameworks/Tcl.framework/Versions/Current/PrivateHeaders -I/System/Library/Frameworks/Tk.framework/Headers -I/System/Library/Frameworks/Tk.framework/Versions/Current/PrivateHeaders -I/usr/X11R6/include -I/Users/stellaechen/download/Python-2.7.13/Mac/Include -I. -IInclude -I./Include -I/usr/local/include -I/Users/stellaechen/download/Python-2.7.13/Include -I/Users/stellaechen/download/Python-2.7.13 -c /Users/stellaechen/download/Python-2.7.13/Modules/_tkinter.c -o build/temp.macosx-15.4-arm64-2.7/Users/stellaechen/download/Python-2.7.13/Modules/_tkinter.o -framework Tk clang: warning: -framework Tk: 'linker' input unused [-Wunused-command-line-argument] In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_tkinter.c:71: /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/tk.h:86:11: fatal error: 'X11/Xlib.h' file not found 86 | # include <X11/Xlib.h> | ^~~~~~~~~~~~ 1 error generated. building '_ctypes' extension gcc -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I_ctypes/darwin -I/Users/stellaechen/download/Python-2.7.13/Mac/Include -I/Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include -I/Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/powerpc -I. -IInclude -I./Include -I/usr/local/include -I/Users/stellaechen/download/Python-2.7.13/Include -I/Users/stellaechen/download/Python-2.7.13 -c /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.c -o build/temp.macosx-15.4-arm64-2.7/Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.o -DMACOSX In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.c:113: /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:65:3: error: "Unsupported MacOS X CPU type" 65 | # error "Unsupported MacOS X CPU type" | ^ In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.c:113: In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:73: /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffitarget.h:12:2: error: "Unsupported CPU type" 12 | #error "Unsupported CPU type" | ^ In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.c:113: In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:74: /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/fficonfig.h:51:2: error: "Unknown CPU type" 51 | #error "Unknown CPU type" | ^ In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.c:113: /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:171:5: error: unknown type name 'ffi_abi' 171 | ffi_abi abi; | ^ /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:193:2: error: unknown type name 'ffi_sarg' 193 | ffi_sarg sint; | ^ /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:194:2: error: unknown type name 'ffi_arg' 194 | ffi_arg uint; | ^ /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/libffi_osx/include/ffi.h:307:11: error: unknown type name 'ffi_abi' 307 | ffi_abi abi, | ^ In file included from /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/_ctypes.c:129: /Users/stellaechen/download/Python-2.7.13/Modules/_ctypes/ctypes.h:99:5: error: unknown type name 'ffi_closure' 99 | ffi_closure *pcl_write; /* the C callable, writeable */ | ^ 8 errors generated. Python build finished, but the necessary bits to build these modules were not found: _bsddb _curses _curses_panel _sqlite3 _ssl bsddb185 bz2 dbm dl gdbm imageop linuxaudiodev nis ossaudiodev readline spwd sunaudiodev zlib To find the necessary bits, look in setup.py in detect_modules() for the module's name. Failed to build these modules: _ctypes _Qt _tkinter running build_scripts stellaechen@STELLAECHEN-MC1 Python-2.7.13 %
最新发布
07-05
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