config/companion_libs.in
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Aug 30 19:33:48 2009 +0200 (2009-08-30)
changeset 1497 1b90f0b34c80
parent 1495 2542421e3321
child 1515 545179329bc5
permissions -rw-r--r--
config: move down companion libraries sub-menu

Move the companion libraries sub-menu down the main menu.
That way, the user does not need to go back and forth in the menu
to change options set by the different components that select the
companion libraries (binutils, gcc, gdb).
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# Companion libraries config options
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# Those libraries are required for different versions of gcc,
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# and can be used by binutils and gdb (maybe others as well).
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menu "Companion libraries"
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config WRAPPER_NEEDED
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    bool
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    default n
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config GMP_MPFR
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    bool
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    prompt "GMP and MPFR"
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    select WRAPPER_NEEDED
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    help
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      gcc 4.3.0 and above requires both GMP and MPFR to build some frontends,
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      and some other components can use them as well.
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      These will be automatically selected if you choose gcc>=4.3.0, but you
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      can say 'Y' here if you want to build those two libraries for the other
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      components (that don't select them by default).
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      The packages that can use GMP and MPFR are:
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        - binutils
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        - gcc
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        - gdb
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if GMP_MPFR
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source config/companion_libs/gmp.in
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source config/companion_libs/mpfr.in
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endif
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config PPL_CLOOG_MPC
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    bool
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    prompt "PPL, GLooG/PPL and MPC"
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    select GMP_MPFR
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    select WRAPPER_NEEDED
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    help
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      gcc-4.4.0 and above requires PPL and CLooG/PPL to build some parts
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      of the optimiser (GRAPHITE loop optimisation, to be precise).
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      In addition to those, gcc-4.4 also optionally uses MPC to enable
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      additional optimisations on complex numbers. Although MPC is optional,
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      crosstool-NG requires it and uses it to build gcc >= 4.4.0.
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      These will be automatically selected if you choose gcc>=4.4.0, but you
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      can say 'Y' here, although it is unknown yet if any other component
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      can use them.
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if PPL_CLOOG_MPC
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source config/companion_libs/ppl.in
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source config/companion_libs/cloog.in
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source config/companion_libs/mpc.in
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endif
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config FOO
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    bool
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comment "Companion libraries common options"
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    depends on GMP_MPFR || PPL_CLOOG_MPC
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config COMP_LIBS_CHECK
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    bool
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    prompt "|  Check the companion libraries builds (!!! READ HELP!!!)"
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    depends on GMP_MPFR || PPL_CLOOG_MPC
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    default n
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    help
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      It is highly recommended to check the newly built companion libraries.
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      Unfortunately, this is a very intensive task, and takes a loooong time.
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      Checking the newly built companion libraries is thus disabled by default,
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      but it is suggested that you check them at least once on your machine,
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      and if they work, disable the check on subsequent builds.
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      If you suspect that one (or more) of your companion libraries is the
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      cause for incorrectly generated code, you should answer 'Y' here.
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      Note however that this will take a really long time. For example,
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      building PPL on my machine takes roughly 1'40", while checking it takes
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      about 1h40'...
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config COMP_LIBS_TARGET
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    bool
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    prompt "|  Build companion libraries for the target"
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    depends on GMP_MPFR || PPL_CLOOG_MPC
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    depends on ! BARE_METAL
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    default n
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    help
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      Also build companion libraries for the target. This can be usefull if
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      you want to later build a compiler that will run on the target, or if
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      you want to run gdb natively on the target.
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      Please note that for now, crosstool-NG can only build GMP and MPFR so.
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endmenu