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-rw-r--r--libraries/qt6/README6
1 files changed, 6 insertions, 0 deletions
diff --git a/libraries/qt6/README b/libraries/qt6/README
index d235fa378c..b73df851a7 100644
--- a/libraries/qt6/README
+++ b/libraries/qt6/README
@@ -31,3 +31,9 @@ against optional dependencies.
Qt6 will autodetect and build against multiple external programs and
libraries. To see a list of optional dependencies, please consult
README.SLACKWARE
+
+Qt6 can take substantial time to build and ninja automatically uses
+all of your cpus power to speed up this process: if for some reason
+this ends up trashing the machine on which you are building it you
+can export the environment variable CMAKE_BUILD_PARALLEL_LEVEL to
+set an appropriate number of parallel jobs.