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build: improve special environment variable handling #30722

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Feb 7, 2019
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@vtjnash vtjnash commented Jan 15, 2019

The application of JLDFLAGS was missing on many libraries, and clean up some of this code to avoid needing override. Also add -Wl,-no-undefined on platforms where it is not already the default.

@vtjnash vtjnash added the building Build system, or building Julia or its dependencies label Jan 15, 2019
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vtjnash commented Jan 17, 2019

Oops, it's failing on FreeBSD because we've been mis-linking the binary (e.g. https://build.julialang.org/#/builders/68/builds/2203/steps/6/logs/stdio). Well, at least that detection was the explicit goal of making this change 😜

The application of JLDFLAGS was missing on many libraries,
and clean up some of this code to avoid needing `override`.
Also add -Wl,-no-undefined on platforms where it is supported
(FreeBSD has problems with it) and not already the default (on
Apple and Win32).
@vtjnash vtjnash merged commit e5a7c1f into master Feb 7, 2019
@vtjnash vtjnash deleted the jn/jldflags branch February 7, 2019 16:35
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