我正在尝试编译一个Go程序，使其完全独立，包括C库。我使用的命令是
[mm17@mm17 grogger]$ go build --ldflags '-extldflags "-static"' ./grogger.go
# command-line-arguments
/usr/bin/ld: cannot find -lgrok
collect2: ld returned 1 exit status
/home/mm17/go/pkg/tool/linux_amd64/6l: running gcc failed: unsuccessful exit status 0x100
因此，我将修改调用grok库的文件以包含以下标题
1 package grok
2
3 /*
4 #cgo LDFLAGS: -L /usr/lib/libgrok.so -lgrok
5 #include <grok.h>
6 */
7 import "C"
然后运行相同的命令会得到以下结果：
[mm17@mm17 grogger]$ go build --ldflags '-extldflags "-static"' ./grogger.go
# github.com/blakesmith/go-grok
/usr/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000400180
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_strlen':
../../blakesmith/go-grok/grok.go:169: undefined reference to `strlen'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_patterns_import_from_file':
../../blakesmith/go-grok/grok.go:159: undefined reference to `grok_patterns_import_from_file'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_pattern_add':
../../blakesmith/go-grok/grok.go:147: undefined reference to `grok_pattern_add'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_new':
../../blakesmith/go-grok/grok.go:132: undefined reference to `grok_new'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_match_walk_next':
../../blakesmith/go-grok/grok.go:123: undefined reference to `grok_match_walk_next'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_exec':
../../blakesmith/go-grok/grok.go:81: undefined reference to `grok_exec'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_discover_new':
../../blakesmith/go-grok/grok.go:68: undefined reference to `grok_discover_new'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_compile':
../../blakesmith/go-grok/grok.go:46: undefined reference to `grok_compile'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_match_walk_init':
../../blakesmith/go-grok/grok.go:108: undefined reference to `grok_match_walk_init'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_match_walk_end':
../../blakesmith/go-grok/grok.go:99: undefined reference to `grok_match_walk_end'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_free':
../../blakesmith/go-grok/grok.go:90: undefined reference to `grok_free'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_grok_discover':
../../blakesmith/go-grok/grok.go:58: undefined reference to `grok_discover'
/tmp/go-build731085030/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_free':
../../blakesmith/go-grok/grok.go:34: undefined reference to `free'
collect2: ld returned 1 exit status
如果我尝试正常构建它，也会得到同样的结果：
[mm17@mm17 grogger]$ go build grogger.go
# github.com/blakesmith/go-grok
/usr/bin/ld: warning: cannot find entry symbol _start; defaulting to 0000000000400180
/tmp/go-build294631148/github.com/blakesmith/go-grok/_obj/grok.cgo2.o: In function `_cgo_4244208c3352_Cfunc_strlen':
../../blakesmith/go-grok/grok.go:169: undefined reference to `strlen'
....
我相信我只是做了一些愚蠢的事情，但我似乎无法弄清楚，当涉及到gcc和go时，我就是一个很新手的人，这是我第一个非玩具程序。
-lc添加到LDFLAGS是否有帮助？#cgo LDFLAGS：-L /usr/lib/libgrok.so -lgrok -lc？ - OneOfOne-L参数的参数应该是包含库文件的目录，而不是单个库文件的文件名。（如果您没有静态库文件可用，则可能无济于事） - James Henstridge