源码编译安装runc碰到的一个小坑

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运行runc碰到的坑

go build -o runc .#   github.com/seccomp/libseccomp-golangGodeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:298: invalid operation: in.toNative() == *_Cvar_C_ARCH_BAD (mismatched types C.uint32_t and C.uint)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:328: invalid case *_Cvar_C_ARCH_X86 in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:330: invalid case *_Cvar_C_ARCH_X86_64 in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:332: invalid case *_Cvar_C_ARCH_X32 in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:334: invalid case *_Cvar_C_ARCH_ARM in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:336: invalid case *_Cvar_C_ARCH_NATIVE in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:338: invalid case *_Cvar_C_ARCH_AARCH64 in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:340: invalid case *_Cvar_C_ARCH_MIPS in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:342: invalid case *_Cvar_C_ARCH_MIPS64 in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:344: invalid case *_Cvar_C_ARCH_MIPS64N32 in switch on a (mismatched types C.uint and C.uint32_t)Godeps/_workspace/src/github.com/seccomp/libseccomp-golang/seccomp_internal.go:344: too many errorsmake: *** [all] Error 2

编译runc时，报错，很明显，是runc的一个依赖库github.com/seccomp/libseccomp-golang的错误。

于是单独编译安装该库，同样抛出 mismatched types C.uint32_t and C.uint 这个错误。

查看源码 seccomp_internal.go:298 可以发现in.toNative()返回的是C.uint32_t类型的值

const uint32_t C_ARCH_BAD = ARCH_BAD;

从上面可以看出 C.C_ARCH_BAD 反射过来也应该是uint32_t 类型的值。不应该报错才对。
但是实践发现，在我的机器上C.C_ARCH_BAD被反射成uint类型的。
于是找到 golang/go 并提了个issue golang/go#12599 对方答复，是我的gcc版本太低了 -_-!

于是只好把gcc从4.6.3升级到了4.8.1，没问题了

runc上的原始的issue链接:
https://github.com/opencontainers/runc/issues/256

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