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Build issue with interval package 3.1.0


From: Marius Schamschula
Subject: Build issue with interval package 3.1.0
Date: Thu, 21 Dec 2017 08:37:14 -0800

Hi all,

I just tried updating the interval package to version 3.1.0. However, I got a 
build error while building crlibm:

/opt/local/bin/g++-mp-7 -I/opt/local/include/octave-4.2.1/octave/.. 
-I/opt/local/include/octave-4.2.1/octave -I/opt/local/include  -D_THREAD_SAFE 
-pthread -pipe -Os -std=c++11 -stdlib=libc++ -arch x86_64 -bundle 
-bundle_loader /opt/local/bin/octave-4.2.1  -o crlibm_function.oct  
crlibm_function.o crlibm/asincos.o crlibm/atan_accurate.o crlibm/atan_fast.o 
crlibm/crlibm_private.o crlibm/csh_fast.o crlibm/exp-td-standalone.o 
crlibm/exp-td.o crlibm/expm1-standalone.o crlibm/expm1.o crlibm/log.o 
crlibm/log1p.o crlibm/pow.o crlibm/rem_pio2_accurate.o crlibm/trigo_accurate.o 
crlibm/trigo_fast.o crlibm/trigpi.o crlibm/triple-double.o 
crlibm/scs_lib/addition_scs.o crlibm/scs_lib/division_scs.o 
crlibm/scs_lib/double2scs.o crlibm/scs_lib/multiplication_scs.o 
crlibm/scs_lib/print_scs.o crlibm/scs_lib/scs2double.o 
crlibm/scs_lib/scs2mpfr.o crlibm/scs_lib/scs_private.o 
crlibm/scs_lib/zero_scs.o   -L/opt/local/lib/octave/4.2.1 -L/opt/local/lib 
-loctinterp -loctave  
g++-mp-7: error: unrecognized command line option '-stdlib=libc++'
make: *** [crlibm_function.oct] Error 1

The above option applies to llvm, not gcc. I’m not sure how to tweak the 
Makefile.in to fix this.

I’m building against octave 4.2.1, built using gcc 7 under macOS High Sierra 
(10.13.3 Beta), under MacPorts.

Marius


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