K 10
svn:author
V 6
rakuco
K 8
svn:date
V 27
2019-03-25T13:00:23.367125Z
K 7
svn:log
V 366
Simplify pthread + libtool workaround.

Improve upon r496818. Instead of setting both MAKE_ENV and patching ilmthread's
Makefile, just make sure PTHREAD_LIBS is set a configuration time. This is what
Debian does, and it achieves the same solution with fewer lines.

While here, add an explanation for why we need this.

PR:		236734
Approved by:	mandree (maintainer)

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