Boost context detection broken

[mind04]

• Program: Recursor
• Issue type: Bug report

Short description

configure is failing without boost context

Environment

• Operating system: CentOS armv7hl
• Software version: git
• Software source: git

Other information

Last working commit 8491dcd

DEBUG: checking for Boost headers version >= 1.35.0... yes
DEBUG: checking for Boost's header version... 1_53
DEBUG: checking boost/container/flat_set.hpp usability... yes
DEBUG: checking boost/container/flat_set.hpp presence... yes
DEBUG: checking for boost/container/flat_set.hpp... yes
DEBUG: checking for the flags needed to use pthreads... -pthread
DEBUG: checking for the toolset name used by Boost for g++... gcc48 -gcc
DEBUG: checking whether Boost is new enough to use the context library...... yes
DEBUG: configure: checking whether the Boost context library actually links...
DEBUG: checking boost/context/fcontext.hpp usability... yes
DEBUG: checking boost/context/fcontext.hpp presence... yes
DEBUG: checking for boost/context/fcontext.hpp... yes
DEBUG: checking for boost/context/fcontext.hpp... (cached) yes
DEBUG: checking for the Boost context library... no
DEBUG: configure: Boost context library is missing
DEBUG: configure: MTasker will use System V ucontexts for context switching

First broken commit 1907d01

DEBUG: checking for Boost headers version >= 1.35.0... yes
DEBUG: checking for Boost's header version... 1_53
DEBUG: checking boost/container/flat_set.hpp usability... yes
DEBUG: checking boost/container/flat_set.hpp presence... yes
DEBUG: checking for boost/container/flat_set.hpp... yes
DEBUG: checking for the flags needed to use pthreads... -pthread
DEBUG: checking for the toolset name used by Boost for g++... gcc48 -gcc
DEBUG: checking whether Boost is new enough to use the context library...... yes
DEBUG: configure: checking whether the Boost context library actually links...
DEBUG: checking boost/context/fcontext.hpp usability... yes
DEBUG: checking boost/context/fcontext.hpp presence... yes
DEBUG: checking for boost/context/fcontext.hpp... yes
DEBUG: checking for boost/context/fcontext.hpp... (cached) yes
DEBUG: checking for the Boost context library... no
DEBUG: configure: error: cannot find flags to link with the Boost context library (libboost-context)

[rgacogne]

It could have been broken by this change: bec678d#diff-3facd5eefc2543a118a98f9368aac491R657

[Habbie]

on centos7 arm64, both 1907d01 and master tell me:

configure: Boost context library is missing
configure: MTasker will use System V ucontexts for context switching

[zeha]

Did this work on the 4.1 branch?

Debian's 4.1 builds with boost context: https://buildd.debian.org/status/fetch.php?pkg=pdns-recursor&arch=arm64&ver=4.1.4-3&stamp=1536527271&raw=0

[Habbie]

It could have been broken by this change: bec678d#diff-3facd5eefc2543a118a98f9368aac491R657

That, or actually 0b59e24 (which the above merges into master) is the breaker for https://buildd.debian.org/status/logs.php?pkg=pdns-recursor&ver=4.2.0-1&arch=s390x&suite=sid