make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/src/system.cpp.o] 错误 1


编译opencv3.4.10时出现

/opencv-2.4.10/modules/core/src/system.cpp:280:10: 错误: ‘asm’中操作数约束不一致
在全局域:
cc1plus: 警告: 无法识别的命令行选项“-Wno-unnamed-type-template-args” [默认启用]
cc1plus: 警告: 无法识别的命令行选项“-Wno-delete-non-virtual-dtor” [默认启用]
cc1plus: 警告: 无法识别的命令行选项“-Wno-narrowing” [默认启用]
make[2]: *** [modules/core/CMakeFiles/opencv_core.dir/src/system.cpp.o] 错误 1
make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] 错误 2
make: *** [all] 错误 2

解决办法:进入下面目录修改


modules/core/src/system.cpp


@@ -267,14 +267,17 @@ struct HWFeatures
    : "cc"
    );
    #else
    + // We need to preserve ebx since we are compiling PIC code.
    + // This means we cannot use "=b" for the 2nd output register.
    asm volatile
    (
    "pushl %%ebx\n\t"
    "movl $7,%%eax\n\t"
    "movl $0,%%ecx\n\t"
275   "cpuid\n\t"
    + "movl %%ebx,%1\n\t"
276   "popl %%ebx\n\t"
277   - : "=a"(cpuid_data[0]), "=b"(cpuid_data[1]), "=c"(cpuid_data[2]), "=d"(cpuid_data[3])
    + : "=a"(cpuid_data[0]), "=r"(cpuid_data[1]), "=c"(cpuid_data[2]), "=d"(cpuid_data[3])
    :
    : "cc"
    );


modules/core/src/system.cpp

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