diff options
| author | Dana Jansens <danakj@orodu.net> | 2007-03-03 00:58:37 +0000 |
|---|---|---|
| committer | Dana Jansens <danakj@orodu.net> | 2007-03-03 00:58:37 +0000 |
| commit | c5b551b25a1d89a3f20599adeec6c6c6a31946e5 (patch) | |
| tree | 421b127d31c5cee16818ec9e68908efbc4f2fd9e /m4 | |
| parent | 4084f5d82dab7224785a1cc3ac8b00361e2fad57 (diff) | |
add -fno-strict-aliasing to the gcc compiler flags. this is needed, see:
http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20030721/msg00141.html
| It's not a compiler bug. It is a C99 bug, or more exactly, a
| feature. C99 changed the semantic of the C language with respect to
| aliasing questions. Now, the compiler can assume that pointer to
| different types points to different memory location. This breaks all
| the OO code written in C.
|
| This is a very good idea that the compiler issues a warning message
| because the semantic of language really changed and you want to revert
| to the old semantic.
|
| The make package MUST add -fno-strict-aliasing. It is not a
| convenience to get rid off warnings.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/openbox.m4 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/m4/openbox.m4 b/m4/openbox.m4 index a69a093d..32162353 100644 --- a/m4/openbox.m4 +++ b/m4/openbox.m4 @@ -64,7 +64,7 @@ AC_DEFUN([OB_COMPILER_FLAGS], if test "$GCC" = "yes"; then AC_MSG_RESULT([yes]) if test "$DEBUG" = "yes"; then - FLAGS="$FLAGS -g -fno-inline" + FLAGS="$FLAGS -g -fno-inline -fno-strict-aliasing" FLAGS="$FLAGS -Wall -Wsign-compare -Waggregate-return" FLAGS="$FLAGS -Wcast-qual -Wbad-function-cast -Wpointer-arith" # for Python.h |