arichardson 1647164fc7 Avoid rebuilding libpmc in every incremental rebuild
Generate libpmc_events.c in a temporary file first and only overwrite it
if the files are actually different.
This avoids compiling and relinking the different variants of libpmc on
every incremental build.

Reviewed By:	jhb
Differential Revision: https://reviews.freebsd.org/D24784
2020-07-15 12:07:47 +00:00
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2019-04-14 00:06:49 +00:00
2019-09-18 16:13:50 +00:00
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2019-04-14 00:06:49 +00:00
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