#13948: Let MPIR build with Clang
-------------------------------------------------+-------------------------
Reporter: jpflori | Owner: leif
Type: defect | Status:
Priority: major | needs_review
Component: packages: standard | Milestone: sage-5.12
Keywords: spkg mpir clang | Resolution:
Authors: Jeroen Demeyer | Merged in:
Report Upstream: Reported upstream. Developers | Reviewers:
acknowledge bug. | Work issues:
Branch: | Commit:
Dependencies: | Stopgaps:
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Comment (by jhpalmieri):
I mean that if I do
{{{
export CFLAGS="-O2 -fomit-frame-pointer -mtune=corei7-avx
-march=corei7-avx -g"
./configure
make
}}}
it finishes without error. (I haven't tried a full Sage build on top of
this, of course.) If `CFLAGS` also includes `-m32`, then `make` fails.
In the spkg, we could have some code like
{{{
#!diff
diff --git a/spkg-install b/spkg-install
--- a/spkg-install
+++ b/spkg-install
@@ -275,6 +275,12 @@
echo " ABI: $user_abi"
echo " (CPP, CPPFLAGS, CXX and CXXFLAGS are listed below; these don't
get modified.)"
+# Fix bug with Xcode 5.0 on Darwin: mpir doesn't build using the -m32
+# flag with the gcc from this version of Xcode.
+if [ blah ]; then # using Xcode 5.0 on Darwin
+ mpir_cflags=... # remove -m32 from $mpir_cflags
+fi
+
# Finally: use MPIR's flags, plus those required by Sage for the
# package to build properly, plus those specified by the user.
CFLAGS="$mpir_cflags $required_cflags $user_cflags"
}}}
I have no idea if this is actually a good idea, though.
--
Ticket URL: <http://trac.sagemath.org/ticket/13948#comment:28>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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