New --enable-threading configure option to control use of threads in GDB/GDBserver
Add the --enable-threading configure option so multithreading can be disabled at configure time. This is useful for statically-linked builds of GDB/GDBserver, since the thread library doesn't play well with that setup. If you try to run a statically-linked GDB built with threading, it will crash when setting up the number of worker threads. This new option is also convenient when debugging GDB in a system with lots of threads, where the thread discovery code in GDB will emit too many messages, like so: [New Thread 0xfffff74d3a50 (LWP 2625599)] If you have X threads, that message will be repeated X times. The default for --enable-threading is "yes".
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