config/companion_libs/ppl.in
| author |
"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
|
Sun Sep 12 23:51:25 2010 +0200 (2010-09-12) |
| changeset 2123 |
ff2181adbd28 |
| parent 1535 |
073d351bdcd3
|
| child 2318 |
11c21c4c5c51 |
| permissions |
-rw-r--r-- |
cc/gcc: disable complibs if not selected
Force gcc to not link with some companion libraries when
there are not needed (because selected-out).
There is no option to tell gcc *not* to build the Graphite and/or
LTO stuff. They *will* be built if gcc finds the suitable companion
libraries. If we do not provide them, but the host has them, then
gcc *will* find them, and link with them.
Consider the following:
- host has suitable PPL and CLooG (eg. Debian Squeeze)
- user wants to build gcc>=4.4
- user de-selects GRAPHITE
- gcc will find the hosts PPL and CLooG, and will use them
- the user moves the toolchain to an older host that does
not have them (eg. Debian Lenny)
- the toolchain fails, when it was properly setup not to
So, explicitly tell gcc *not* to use unneeded companion libs.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>