[Octave-bug-tracker] [bug #41520] Error installing control package in Octave 3.8.0 on MacOS Mavericks

[Julius Smith]

Follow-up Comment #9, bug #41520 (project octave):

For me, mkoctfile, which was installed with Octave, specifies the wrong
directory:

> mkoctfile -p FLIBS
-L/opt/local/lib -L/opt/local/lib/gcc5/gcc/x86_64-apple-darwin15/5.3.0
-L/opt/local/lib/gcc5/gcc/x86_64-apple-darwin15/5.3.0/../../.. -lgfortran
-lquadmath -lm

I can work around this by setting $FLIBS as you suggest, or by making a
symlink from 5.4.0 to 5.3.0, etc.  However, shouldn't mkoctfile and friends
find the right directory?  Octave only formally depends on gcc5, so that
should cover 5.*.*.  For example, GNU Make can do things like this:

# Makefile:
LDIR = /opt/local/lib/gcc5/gcc/x86_64-apple-darwin15
LIB = $(sort $(wildcard $(LDIR)/5.*))

all:
        echo found $(LIB)

This does the right thing on my system, but since it uses lexical sort, it
will fail on minor releases 10 and above.  (I don't find a "sort -n" in GNU
Make.) 

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