[pkg-go] Bug#886761: FTBFS[s390x]: textflag.h: No such file or directory

[Martín Ferrari]

Source: golang-golang-x-net-dev
Version: 1:0.0+git20170629.c81e7f2+dfsg-1
Severity: serious
Justification: fails to build from source

I noted a few packages failing to build from source on s390x, and tracked down
the cause to this package:

# golang.org/x/net/internal/socket
src/golang.org/x/net/internal/socket/sys_linux_s390x.s:5:10: fatal error: textflag.h: No such file or directory
 #include "textflag.h"
          ^~~~~~~~~~~~
compilation terminated.

It seems the source is meant to be compiled with golang-go (which includes
textflag.h), but we are compiling with gccgo, and thus it fails.


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (500, 'oldstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8), LANGUAGE=en_IE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)