diff options
| -rw-r--r-- | config_host.mk.in | 1 | ||||
| -rw-r--r-- | configure.ac | 15 |
2 files changed, 16 insertions, 0 deletions
diff --git a/config_host.mk.in b/config_host.mk.in index 9bf9d69f3a4f..918174891e0b 100644 --- a/config_host.mk.in +++ b/config_host.mk.in @@ -244,6 +244,7 @@ export HAVE_GCC_FNO_ENFORCE_EH_SPECS=@HAVE_GCC_FNO_ENFORCE_EH_SPECS@ export HAVE_GCC_FNO_INLINE=@HAVE_GCC_FNO_INLINE@ export HAVE_GCC_FNO_SIZED_DEALLOCATION=@HAVE_GCC_FNO_SIZED_DEALLOCATION@ export HAVE_GCC_GGDB2=@HAVE_GCC_GGDB2@ +export HAVE_GCC_OG=@HAVE_GCC_OG@ export HAVE_GCC_PRAGMA_OPERATOR=@HAVE_GCC_PRAGMA_OPERATOR@ export HAVE_GNUMAKE_FILE_FUNC=@HAVE_GNUMAKE_FILE_FUNC@ export HAVE_LD_BSYMBOLIC_FUNCTIONS=@HAVE_LD_BSYMBOLIC_FUNCTIONS@ diff --git a/configure.ac b/configure.ac index 77fefaa1dc88..082b311f063b 100644 --- a/configure.ac +++ b/configure.ac @@ -3733,6 +3733,7 @@ fi HAVE_GCC_GGDB2= HAVE_GCC_FINLINE_LIMIT= HAVE_GCC_FNO_INLINE= +HAVE_GCC_OG= if test "$GCC" = "yes"; then AC_MSG_CHECKING([whether $CC supports -ggdb2]) if test -n "$CLANGVER" -a 0"$CLANGVER" -le 30100; then @@ -3782,10 +3783,24 @@ if test "$GCC" = "yes"; then else AC_MSG_RESULT([no]) fi + + AC_MSG_CHECKING([whether $CC supports -Og]) + # Note that clang-3.1 reports a real error for this option + # so we do not need a special case for clang<=3.1 as above. + save_CFLAGS=$CFLAGS + CFLAGS="$CFLAGS -Werror -Og" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[ return 0; ]])],[ HAVE_GCC_OG=TRUE ],[]) + CFLAGS=$save_CFLAGS + if test "$HAVE_GCC_OG" = "TRUE"; then + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi fi AC_SUBST(HAVE_GCC_GGDB2) AC_SUBST(HAVE_GCC_FINLINE_LIMIT) AC_SUBST(HAVE_GCC_FNO_INLINE) +AC_SUBST(HAVE_GCC_OG) dnl =================================================================== dnl Test the gcc version |