Add support for job pools

Commands can now be assigned to an arbitrary job pool and a limit for
the number of concurrently running jobs in such pools can be provided in
a number of ways:
- via the build command line: qbs --job-limits linker:1
- via the settings: qbs config preferences.jobLimit.linker 1
- in a project file: JobLimit {
                         jobPool: "linker";
                         jobCount: 1
                     }
We provide two job pools ourselves with the cpp module: "compiler" and
"linker".

[ChangeLog] Added the concept of job pools for limiting concurrent
execution of commands by type

Task-number: QBS-743
Change-Id: Ib3f361dbc73093e342bf0eba0daf2079a2b3a8ce
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/corelib/tools/persistence.cpp b/src/lib/corelib/tools/persistence.cpp
index 53c9dfac4..216dfad24 100644
--- a/src/lib/corelib/tools/persistence.cpp
+++ b/src/lib/corelib/tools/persistence.cpp
@@ -48,7 +48,7 @@
 namespace qbs {
 namespace Internal {
 
-static const char QBS_PERSISTENCE_MAGIC[] = "QBSPERSISTENCE-122";
+static const char QBS_PERSISTENCE_MAGIC[] = "QBSPERSISTENCE-123";
 
 NoBuildGraphError::NoBuildGraphError(const QString &filePath)
     : ErrorInfo(Tr::tr("Build graph not found for configuration '%1'. Expected location was '%2'.")