diff options
Diffstat (limited to 'configure.in')
-rw-r--r-- | configure.in | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/configure.in b/configure.in index 29c5c126eb..b90f689e8b 100644 --- a/configure.in +++ b/configure.in @@ -277,7 +277,13 @@ AC_PROG_GCC_TRADITIONAL AC_SUBST(GCC) if test "$GCC" = yes; then linker_flag=-Wl, - : ${optflags=-O3} + if test "$CC -v 2>&1 | grep LLVM" ; then + # llvm-gcc's optimization strategy is far different from gcc. + # It makes confusing our gcc specific optimized code. + : ${optflags=-O0} + else + : ${optflags=-O3} + fi AS_CASE(["$target_os"], [linux*|darwin*], [: ${debugflags=-ggdb}]) RUBY_APPEND_OPTIONS(XCFLAGS, ["-include ruby/config.h" "-include ruby/missing.h"]) else |