diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 315fa3bd8..e81fcdbfe 100644 --- a/configure.ac +++ b/configure.ac @@ -1667,6 +1667,38 @@ AC_ARG_WITH([debug-prefix-map], [DEBUG_PREFIX_CFLAGS_FOR_TARGET=]) AC_SUBST(DEBUG_PREFIX_CFLAGS_FOR_TARGET) +# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS +# might be empty or "-g". We don't require a C++ compiler, so CXXFLAGS +# might also be empty (or "-g", if a non-GCC C++ compiler is in the path). +# We want to ensure that TARGET libraries (which we know are built with +# gcc) are built with "-O2 -g", so include those options when setting +# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET. +if test "x$CFLAGS_FOR_TARGET" = x; then + CFLAGS_FOR_TARGET=$CFLAGS + case " $CFLAGS " in + *" -O2 "*) ;; + *) CFLAGS_FOR_TARGET="-O2 $CFLAGS" ;; + esac + case " $CFLAGS " in + *" -g "* | *" -g3 "*) ;; + *) CFLAGS_FOR_TARGET="-g $CFLAGS" ;; + esac +fi +AC_SUBST(CFLAGS_FOR_TARGET) + +if test "x$CXXFLAGS_FOR_TARGET" = x; then + CXXFLAGS_FOR_TARGET=$CXXFLAGS + case " $CXXFLAGS " in + *" -O2 "*) ;; + *) CXXFLAGS_FOR_TARGET="-O2 $CXXFLAGS" ;; + esac + case " $CXXFLAGS " in + *" -g "* | *" -g3 "*) ;; + *) CXXFLAGS_FOR_TARGET="-g $CXXFLAGS" ;; + esac +fi +AC_SUBST(CXXFLAGS_FOR_TARGET) + # Handle --with-headers=XXX. If the value is not "yes", the contents of # the named directory are copied to $(tooldir)/sys-include. if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then |