Add C++ declarations to dns/fixedname.h

(cherry picked from commit 94a1c853)
27 jobs for cplusplusize_dns_fixedname_h-master in 14 minutes and 19 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Precheck
passed #54598
amd64 docker linux
precheck:debian:sid:amd64

00:00:26

 
  Build
passed #54599
amd64 docker linux
build:centos:centos6:amd64

00:03:36

passed #54600
amd64 docker linux
build:centos:centos7:amd64

00:03:19

passed #54601
amd64 docker linux
build:clang:debian:stretch:amd64

00:03:12

passed #54605
i386 docker linux
build:clang:debian:stretch:i386

00:03:45

passed #54602
amd64 docker linux
build:debian:jessie:amd64

00:03:05

passed #54604
amd64 docker linux
build:debian:sid:amd64

00:03:34

passed #54606
i386 docker linux
build:debian:sid:i386

00:04:19

passed #54603
amd64 docker linux
build:debian:stretch:amd64

00:04:00

passed #54607
amd64 docker linux
pkcs11:build:debian:sid:amd64

00:04:16

 
  Test
passed #54621
amd64 docker linux
install:debian:sid:amd64

00:01:52

passed #54623
amd64 docker linux
pkcs11:systemtest:debian:sid:amd64

00:04:50

passed #54622
amd64 docker linux
pkcs11:unittest:debian:sid:amd64

00:00:50

passed #54615
amd64 docker linux
systemtest:centos:centos6:amd64

00:04:51

passed #54616
amd64 docker linux
systemtest:centos:centos7:amd64

00:04:44

passed #54617
amd64 docker linux
systemtest:debian:jessie:amd64

00:04:48

passed #54619
amd64 docker linux
systemtest:debian:sid:amd64

00:04:41

passed #54638
linux docker i386
systemtest:debian:sid:i386

00:04:38

passed #54618
amd64 docker linux
systemtest:debian:stretch:amd64

00:04:53

passed #54608
amd64 docker linux
unittest:centos:centos6:amd64

00:00:52

passed #54609
amd64 docker linux
unittest:centos:centos7:amd64

00:00:55

passed #54613
amd64 docker linux
unittest:clang:debian:stretch:amd64

00:00:43

passed #54610
amd64 docker linux
unittest:debian:jessie:amd64

00:00:55

passed #54612
amd64 docker linux
unittest:debian:sid:amd64

00:00:51

passed #54614
i386 docker linux
unittest:debian:sid:i386

00:00:50

passed #54611
amd64 docker linux
unittest:debian:stretch:amd64

00:00:48

failed #54620
i386 docker linux
systemtest:debian:sid:i386

00:05:17