#16312: Let the user override MACOSX_DEPLOYMENT_TARGET
-------------------------+-------------------------------------------------
Reporter: leif | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.3
Component: build | Keywords: Xcode GCC -mmacosx-version-
Merged in: | min compiler cannot create executables Darwin
Reviewers: | Mavericks MacApp bdist binary distribution
Work issues: | Authors:
Commit: | Report Upstream: N/A
Stopgaps: | Branch:
| Dependencies:
-------------------------+-------------------------------------------------
In `sage-env`, we currently have:
{{{
#!sh
# Mac OS X-specific setup
if [ `uname` = "Darwin" ]; then
# set MACOSX_DEPLOYMENT_TARGET -- if set incorrectly, this can
# cause lots of random "Abort trap" issues on OSX. see trac
# #7095 for an example.
MACOSX_VERSION=`uname -r | awk -F. '{print $1}'`
MACOSX_DEPLOYMENT_TARGET=10.$[$MACOSX_VERSION-4]
export MACOSX_DEPLOYMENT_TARGET
fi
}}}
With '''binary''' distributions of Sage, e.g. when trying to install an
optional spkg, this can lead to errors like
{{{
configure:3166: checking whether the C compiler works
configure:3188: gcc conftest.c >&5
ld: library not found for -lcrt1.10.6.o
collect2: error: ld returned 1 exit status
configure:3192: $? = 1
configure:3230: result: no
}}}
hidden in `config.log`, the visible `configure` error message being
{{{
checking for gcc... gcc
checking whether the C compiler works... no
configure: error: in
`/Applications/sage/local/var/tmp/sage/build/<package>/src':
configure: error: C compiler cannot create executables
See `config.log' for more details
}}}
At least as a work-around, the user should be able to set
`MACOSX_DEPLOYMENT_TARGET` to some other value (e.g. `10.4`) to get past
such errors.
Setting a different target may make sense for developers (using Sage built
from source) as well.
--
Ticket URL: <http://trac.sagemath.org/ticket/16312>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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