- try some voodoo

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@24345 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

configure.in

@@ -356,7 +356,7 @@ CC="$CC_OLD"
 CFLAGS="$CFLAGS_OLD"
 
 AC_ARG_VAR(RUNTIMECC, [Selects a compiler to be used to compile generated code. It is more important to compile fast than to generate fast code for the runtime compiler.])
-AC_ARG_VAR(RUNTIMECFLAGS, [CFLAGS for the selected runtime compiler (defaults to -O1 -falign-functions -march=native -mfpmath=sse -fPIC as long as neither gives warnings to the CC). Note that heavy optimisations may cause the run-time to be faster while increasing compile-time. -O0 is often best.])
+AC_ARG_VAR(RUNTIMECFLAGS, [CFLAGS for the selected runtime compiler (defaults to -O0 -falign-functions -march=native -mfpmath=sse -fPIC as long as neither gives warnings to the CC). Note that heavy optimisations may cause the run-time to be faster while increasing compile-time. -O0 is often best.])
 
 CC_OLD="$CC"
 CFLAGS_OLD="$CFLAGS"
@@ -371,7 +371,7 @@ if test -z "$RUNTIMECFLAGS"; then
   AC_TRY_LINK([], [return 0;], [AC_MSG_RESULT($CC ok);],[AC_MSG_ERROR($CC failed)])
   CFLAGS="$FPIC"
   AC_MSG_CHECKING([runtime compiler CFLAGS])
-  for flag in -O1 -falign-functions -march=native -mfpmath=sse; do
+  for flag in -O0 -falign-functions -march=native -mfpmath=sse; do
     RUNTIMECFLAGS="$CFLAGS"
     CFLAGS="$RUNTIMECFLAGS $flag -Werror"
     AC_TRY_LINK([], [return 0;], [CFLAGS="$RUNTIMECFLAGS $flag"],[CFLAGS="$RUNTIMECFLAGS"])