| |
| |
| Like many arbitrary precision libraries, libmpdec frequently exposes toolchain |
| bugs. Be sure to run all tests! |
| |
| |
| gcc |
| === |
| |
| gcc should work on all platforms and generates the fastest code of all |
| tested compilers. The configure script contains workarounds for these |
| two toolchain bugs (which should have been fixed in all Linux distribu- |
| tions by now): |
| |
| 1) In December 2010 it was discovered that some gcc versions |
| miscompile the inline assembly of the PPRO configuration. |
| See also: |
| |
| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46491 |
| http://gcc.gnu.org/ml/gcc/2010-11/msg00366.html |
| |
| The bug is only triggered in bignum arithmetic and will fail |
| instantly with an assert in crt.c. The current configure script |
| automatically detects the bug and enables a workaround |
| (-fno-ipa-pure-const). |
| |
| 2) gcc-4.6 exposes a bug in glibc, which had incorrect _FORTIFY_SOURCE |
| wrappers for memmove and bcopy: |
| |
| http://sourceware.org/ml/libc-alpha/2010-12/msg00009.html |
| |
| If an unpatched glibc is detected, the current configure script |
| automatically enables a workaround (-U_FORTIFY_SOURCE). |
| |
| |
| clang |
| ===== |
| |
| There are no known issues. Tested on FreeBSD with clang 3.0. |
| |
| |
| icc |
| === |
| |
| Intel compilers >= 11.0 should work. Previous versions had problems with |
| GNU inline assembly. Tested on Linux with version 12.0. |
| |
| |
| Visual Studio |
| ============= |
| |
| There are no known issues. Tests have been run with VC 2008 and VC 2010. |
| |
| |
| suncc |
| ===== |
| |
| x86/x64 |
| ------- |
| |
| studio12u1 had a bug resulting in incorrect array offset calculations. |
| According to Sun this was fixed in sunstudio12.1. Tests run successfully |
| here with sunstudio12.3. |
| |
| |
| SPARC |
| ----- |
| |
| 64-bit build |
| ~~~~~~~~~~~~ |
| |
| With the following flags the tests pass. Note that at least a subset |
| of these flags is absolutely required. See also: |
| |
| http://bugs.python.org/issue15963 |
| |
| ./configure CFLAGS="-v -fsimple=0 -m64 -mt=yes -xbuiltin -xhwcprof \ |
| -xF -xarch=native -xchip=native -fma=fused -g -xO5 -xlibmil \ |
| -xlibmopt -xmemalign=8s -xregs=frameptr -xtarget=native \ |
| -xbuiltin=%all -library=sunperf" \ |
| CPPFLAGS="-IInclude" OPT="" \ |
| LDFLAGS="-v -fsimple=0 -m64 -mt=yes -xbuiltin -xhwcprof \ |
| -xF -xarch=native -xchip=native -fma=fused -g -xO5 -xlibmil \ |
| -xlibmopt -xmemalign=8s -xbuiltin=%all -xregs=frameptr \ |
| -xtarget=native -library=sunperf" \ |
| CC=/opt/solarisstudio12.3/bin/cc |
| |
| 32-bit build |
| ~~~~~~~~~~~~ |
| |
| The 32-bit build appears to work without any special flags. |
| |
| |
| xlc |
| === |
| |
| For a while http://buildbot.python.org/ had an AIX/xlc buildslave which |
| successfully compiled libmpdec. |
| |
| |
| |
| CompCert |
| ======== |
| |
| Versions >= 1.8.2 work. |
| |
| |
| |
| |
