OSX: make sure LDFLAGS are set for linking purposes

[sagetrac-mabshoff]

On OSX it seems that using DYLD_LIBRARY_PATH on OSX is not equivalent to using LD_LIBRARY_PATH on Linux for example since there the linker takes that into consideration as a last resort when not finding libraries. I tried to figure out if there is some magic mode for the OSX ld to consider DYLD_LIBRARY_PATH, but I couldn't find anything. Either way, I can systematically fix those issues, but it will take some time to get this right and tested since this appears to be an OSX specific issue.

This is somewhat of a META ticket and will take some time to fix.

Cheers,

Michael

Component: build

Reviewer: Karl-Dieter Crisman

Issue created by migration from https://trac.sagemath.org/ticket/3349

[kcrisman]

comment:2

This ticket is very vague, and we have been dealing with these issues on a per-spkg basis, I think - not to mention that it has gotten no comments in four years. I'm recommending to close this, though the release manager could have another view.

[kcrisman]

Reviewer: Karl-Dieter Crisman

[jdemeyer]

comment:4

Sage is building perfectly fine now on a lot of OS X machines. The ticket doesn't mention any concrete instance of the issue.