https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69413
Bug ID: 69413
Summary: [6 Regression] r232327 prevents libstdc++ working
after upgrading glibc to 2.23
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
The fixes for PR 48891 require libstdc++ to be rebuilt after upgrading glibc to
current trunk (which will be 2.23), because the configure-time checks for isinf
and isnan give the wrong answer for the new glibc.
There needs to be a compile-time check so that rebuilding gcc isn't needed (or
glibc needs to define a macro telling us the isinf and isnan declarations have
been suppressed).
