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2019-08-02 Martin Liska <mliska@suse.cz> PR lto/91313 * gcc.c (driver::maybe_run_linker): Call detect_jobserver to detect working job server. (driver::detect_jobserver): Test whether jobserver is active from GCC driver. That will prevent situation where GCC is invoked from a LD plugin and the linker already uses file descriptors suggested by make. That leads to a wrong detection. * gcc.h (driver): Add detect_jobserver. * lto-wrapper.c (jobserver_active_p): Simplify sscanf by not scanning for --jobserver-auth prefix. From-SVN: r274003
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