[Vm-dev] Portability problems: compiler flags

[Aleksej Saushev]

  Hello!

Squeak uses highly unportable flag "-mno-fused-madd".
It isn't present in many systems, even those using GCC,
since many systems use older compilers.

Also, why do you build fdlibm? It is old stuff that works not so well,
we have better libm. Is there a way to use our libm?


No "-mno-fused-madd" in our compiler.

--- unix/plugins/FloatMathPlugin/config.cmake.orig	2011-01-25 04:56:17.000000000 +0300
+++ unix/plugins/FloatMathPlugin/config.cmake	2011-01-25 05:15:59.000000000 +0300
@@ -10,7 +10,7 @@
 # GCC optimizations break fdlibm so disable them for now.
 
 IF (CMAKE_COMPILER_IS_GNUCC)
-  SET (LIBM_CFLAGS "${CMAKE_C_FLAGS} -O0 -mno-fused-madd")
+  SET (LIBM_CFLAGS "${CMAKE_C_FLAGS}")
 ELSE ()
   SET (LIBM_CFLAGS "${CMAKE_C_FLAGS}")
 ENDIF ()



-- 
HE CE3OH...