788270 - Fix TLS detection with clang on OpenBSD (port bug 778414)

Status: RESOLVED FIXED

Description

[Landry Breuil (:gaston)]

Atm configuring c-c with clang on OpenBSD wrongly thinks openbsd supports TLS, while it doesn't (see https://bugzilla.mozilla.org/show_bug.cgi?id=778414#c0).

$grep HAVE_THREAD_TLS_KEYWORD /usr/obj/c-c/* 
/usr/obj/c-c/comm-config.h:#define HAVE_THREAD_TLS_KEYWORD 1

It builds but fails linking libxul.so :

../../../mailnews/imap/src/nsSyncRunnableHelpers.o(.text._ZN12_GLOBAL__N_120DispatchSyncRunnableEPNS_16SyncRunnableBaseE+0xa): In function `(anonymous namespace)::Dispatc
hSyncRunnable((anonymous namespace)::SyncRunnableBase*)':
../../../mozilla/dist/include/nsAtomicRefcnt.h:46: undefined reference to `gTLSThreadID'
../../../mailnews/addrbook/src/nsAbManager.o(.text._ZN11nsAbManager4InitEv+0x10): In function `nsAbManager::Init()':
../../../mozilla/dist/include/mozilla/HashFunctions.h:65: undefined reference to `gTLSThreadID'
../../../ldap/xpcom/src/nsLDAPSyncQuery.o(.text._ZN15nsLDAPSyncQuery14InitConnectionEv+0x1a): In function `nsLDAPSyncQuery::InitConnection()':
/home/landry/src/comm-central/ldap/xpcom/src/nsLDAPSyncQuery.cpp:163: undefined reference to `gTLSThreadID'
^N/usr/bin/ld: libxul.so.1.0: hidden symbol `gTLSThreadID' isn't defined
clang-3: error: linker command failed with exit code 1 (use -v to see invocation)

We should port the configure.in chunk of https://bug778414.bugzilla.mozilla.org/attachment.cgi?id=646831 to c-c to fix that.

Comment 1

[Landry Breuil (:gaston)]

Created attachment 658219 [details] [diff] [review]
OpenBSD doesn't support TLS yet

Comment 2

[Mark Banner (:standard8) (afk 21 - 30 July)]

Comment on attachment 658219 [details] [diff] [review]
OpenBSD doesn't support TLS yet

Sorry for the delay. r=me

Comment 3

[Landry Breuil (:gaston)]

https://hg.mozilla.org/comm-central/rev/c3caa58362dc