Merge remote-tracking branch 'origin/maint'

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index aec681ad5d3d726a4e373e9a0797de84cb291827..a4eb373e5bec48af93825b8cdb3d6ac81bb894d8 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -111,6 +111,8 @@ if test "$enable_gcc_warnings" = yes; then
   # Warnings for the test suite only.
   gl_WARN_ADD([-Wundef], [WARN_CXXFLAGS_TEST])
   gl_WARN_ADD([-pedantic], [WARN_CXXFLAGS_TEST])
+  # Variants break strict aliasing analysis.
+  gl_WARN_ADD([-fno-strict-aliasing], [NO_STRICT_ALIAS_CXXFLAGS])
   CXXFLAGS=$save_CXXFLAGS
   AC_LANG_POP([C++])
 fi