go1.9.0: glibc issue with 'dlopen' in statically linked applications.

[mjtrangoni]

Hi,

I am using this library, and tried compiling my code with the new released,

go version go1.9 linux/amd64

My OS is CentOS 7.3,

Linux sargas 3.10.0-514.26.2.el7.x86_64 #1 SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

and I am having this issue when static compiling.

/tmp/go-link-211633467/000001.o: In function `unixDlOpen':
[...]/vendor/github.com/mattn/go-sqlite3/sqlite3-binding.c:35900: warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/tmp/go-link-211633467/000000.o: In function `_cgo_b0c710f30cfd_C2func_getaddrinfo':
/tmp/go-build/net/_obj/cgo-gcc-prolog:46: warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libpthread.a(libpthread.o): In function `sem_open':
(.text+0x6823): warning: the use of `mktemp' is dangerous, better use `mkstemp'

With go.1.8.3 it compiles statically without any problem, and with go1.9.0 with the glibc shared too. Any idea on how this could be fixed?

[gjrtimmer]

@mjtrangoni Is this still an active problem or did you fix it ? Can you try Go 1.10.x

[mjtrangoni]

@gjrtimmer one warning is still there, see,

[...]/vendor/github.com/mattn/go-sqlite3/sqlite3-binding.c:37945: warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
/tmp/go-link-220495420/000015.o: In function `_cgo_f7895c2c5a3a_C2func_getaddrinfo':
/tmp/go-build/cgo-gcc-prolog:46: warning: Using 'getaddrinfo' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
$ go version
go version go1.10.3 linux/amd64
$ uname -a
Linux hostname 3.10.0-862.2.3.el7.x86_64 #1 SMP Wed May 9 18:05:47 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
$ grep -A3 -B1 go-sqlite3  Gopkg.lock 
[[projects]]
  name = "github.com/mattn/go-sqlite3"
  packages = ["."]
  revision = "d31a44a0bd3b04338b506515c1cab0fe0e6e73bf"
  version = "v1.8.0"

[gjrtimmer]

@mjtrangoni After some research I think you have to live with it.

See golang issue: golang/go#21421
See Comment: golang/go#21421 (comment)

Summary:
Earlier versions of the golang compiler where auto-hiding the warning.

Unfortunately we cannot help you with this, seems to be golang compiler related.

I really hope this information helps.