X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=configure;h=853bf05e8cb6499dd3b48bd62b6c425330c5c6d0;hb=aebd6a36449e91c06763a40121d558b6cea90d50;hp=6f5453f52ceafa9ed6e97fae18028172b601410e;hpb=03f71251e6987b18d005e5a9e07d20906ae4b143;p=musl

diff --git a/configure b/configure
index 6f5453f5..853bf05e 100755
--- a/configure
+++ b/configure
@@ -353,6 +353,14 @@ tryflag CFLAGS_C99FSE -fexcess-precision=standard \
 || { test "$ARCH" = i386 && tryflag CFLAGS_C99FSE -ffloat-store ; }
 tryflag CFLAGS_C99FSE -frounding-math
 
+#
+# Semantically we want to insist that our sources follow the
+# C rules for type-based aliasing, but most if not all real-world
+# compilers are known or suspected to have critical bugs in their
+# type-based aliasing analysis. See for example GCC bug 107107.
+#
+tryflag CFLAGS_C99FSE -fno-strict-aliasing
+
 #
 # We may use the may_alias attribute if __GNUC__ is defined, so
 # if the compiler defines __GNUC__ but does not provide it,