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2015-08-12 17:56:32 +0100 commented answer Installing Sage 6.8 on OSX 10.10

Yes, I have the most current Xcode. xcode-select --install says command line tools are already installed and all my software is up to date.

2015-08-12 17:55:30 +0100 answered a question Installing Sage 6.8 on OSX 10.10

Yes, I have the most current Xcode. xcode-select --install says command line tools are already installed and all my software is up to date.

2015-08-12 07:15:57 +0100 received badge  Editor (source)
2015-08-12 06:49:21 +0100 asked a question Installing Sage 6.8 on OSX 10.10

After several days of attempting to install Sage on my MacBook (mid 2010) I'm about to give up.

First, I tried the binaries. Both the traditional version sage-6.8-x86_64-Darwin-OSX_10.10_x86_64.dmg and the app version sage-6.8-x86_64-Darwin-OSX_10.10_x86_64-app.dmg gave me an Unhandled SIGILL error when I attempted to run the simple expression 1.1+1.0 . The sage --testall failed with the same error in many tests.

I then attempted to build sage from the source code. The default Xcode clang compiler didn't work. Maybe because it doesn't have fortran and other prerequisites. I then downloaded and built the GNU gcc compiler. After several failed attempts to build sage with that I finally tried building sage with it's internal gcc compiler [export SAGE_INSTALL_GCC=yes] ... and that failed too. Both my built GNU gcc and sage's internal gcc compilers gave me the same error:

configure: Configuring included Boehm GC library:
/Users/<myid>/sage-6.8/local/var/tmp/sage/build/ecl-13.5.1.p0/src/src/configure: line 5963: /Users/<myid>/sage-6.8/local/var/tmp/sage/build/ecl-13.5.1.p0/src/src/gc-unstable/configure: No such file or directory
configure: error: Unable to configure Boehm-Weiser GC
Error - Failed to configure ECL ... exiting

Before I quit, can anyone offer any advice on what I should do?