config/debug/dmalloc.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 1603 e0ef539e23d9
child 2444 896cb0d36c1a
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>
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# dmalloc debug facility
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# depends on ! BACKEND
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config DEBUG_dmalloc
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    bool
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choice
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    bool
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    prompt "dmalloc version"
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# Don't remove next line
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# CT_INSERT_VERSION_BELOW
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config DMALLOC_V_5_5_2
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    bool
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    prompt "5.5.2"
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endchoice
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config DMALLOC_VERSION
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    string
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# Don't remove next line
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# CT_INSERT_VERSION_STRING_BELOW
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    default "5.5.2" if DMALLOC_V_5_5_2