Module: ppl/ppl Branch: devel Commit: 4e3d897f08b63ac7abc55d6a3621f84cdf1a69fe URL: http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=4e3d897f08b63... Author: Roberto Bagnara <roberto.bagnara@bugseng.com> Date: Sat Apr 8 16:38:17 2017 +0200 Work around the fact that __attribute__((weak)) does not work on 64-bit Cygwin. Thanks to Erik M. Bray. --- src/assertions.hh | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/src/assertions.hh b/src/assertions.hh index cceb7c9..63afbc1 100644 --- a/src/assertions.hh +++ b/src/assertions.hh @@ -98,7 +98,10 @@ site: http://bugseng.com/products/ppl/ . */ namespace Parma_Polyhedra_Library { -#if PPL_CXX_SUPPORTS_ATTRIBUTE_WEAK +// Note: __attribute__((weak)) does not work on 64-bit Cygwin. +// See https://trac.sagemath.org/ticket/16152 and links therein. +#if PPL_CXX_SUPPORTS_ATTRIBUTE_WEAK \ + && !(defined(__CYGWIN__) && defined(__x86_64__)) #define PPL_WEAK_NORETURN __attribute__((weak, noreturn)) #else #define PPL_WEAK_NORETURN __attribute__((noreturn))