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work around GCC bug 106159

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* m4/gccwarn.m4: Add an example of multiple inheritance of virtual
classes to trigger to new -Woverloaded-virtual warning on the
destructor.
This commit is contained in:
Alexandre Duret-Lutz 2022-07-05 10:38:51 +02:00
parent 1fc94ee6f2
commit 833fcdebc1
1 changed files with 7 additions and 0 deletions
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7
m4/gccwarn.m4
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@ -22,6 +22,13 @@ AC_DEFUN([CF_GXX_WARNINGS],
#line __oline__ "configure" #line __oline__ "configure"
#include <string> #include <string>
#include <regex> #include <regex>
// From GCC bug 106159
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106159
struct left { virtual ~left() {} };
struct right { virtual ~right() {} };
struct both: public left, public right {};
int main(int argc, char *argv[[]]) int main(int argc, char *argv[[]])
{ {
// This string comparison is here to detect superfluous // This string comparison is here to detect superfluous