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config/cc.in
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Thu Jul 28 22:09:31 2011 +0200 (2011-07-28)
changeset 2573 424fa2092ace
parent 2484 d1a8c2ae7946
child 3131 bd172b161ff8
permissions -rw-r--r--
scripts/libc: do not build add-ons by default

Currently, no --enable-add-ons option is passed to libc configure when
"$(do_libc_add_ons_list ,)" is empty, which makes configure automatically search
for present add-ons. In that case, all present add-ons are built, although
no add-on was selected by the user in the config. Moreover, this can make the
configure fail if some non-standard add-ons like eglibc-localedef are present.

This behavior also leads to an inconsistency from a user point of view between
the following cases:
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS="none" in the config,
which makes "$(do_libc_add_ons_list ,)" return "", so all present add-ons
are built.
- LIBC_ADDONS_LIST="", LIBC_GLIBC_USE_PORTS=n and THREADS!="none" in the
config, which makes "$(do_libc_add_ons_list ,)" return the add-on supporting
the chosen threading implementation, e.g. "nptl", so only this add-on is
built.

This patch disables the building of all add-ons in that case.

It is still possible to build all present add-ons by adding --enable-add-ons to
LIBC_GLIBC_EXTRA_CONFIG_ARRAY.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com> 
     1 # Compiler options

     2 

     3 menu "C compiler"

     4 

     5 config CC

     6     string

     7 

     8 config CC_VERSION

     9     string

    10 

    11 source "config.gen/cc.in"

    12 

    13 config CC_SUPPORT_CXX

    14     bool

    15 

    16 config CC_SUPPORT_FORTRAN

    17     bool

    18 

    19 config CC_SUPPORT_JAVA

    20     bool

    21 

    22 config CC_SUPPORT_ADA

    23     bool

    24 

    25 config CC_SUPPORT_OBJC

    26     bool

    27 

    28 config CC_SUPPORT_OBJCXX

    29     bool

    30 

    31 comment "Additional supported languages:"

    32 

    33 config CC_LANG_CXX

    34     bool

    35     prompt "C++"

    36     depends on CC_SUPPORT_CXX

    37     help

    38       Enable building a C++ compiler.

    39 

    40       Only select this if you know that your specific version of the

    41       compiler supports this language.

    42 

    43 if ! BARE_METAL

    44 

    45 config CC_LANG_FORTRAN

    46     bool

    47     prompt "Fortran"

    48     depends on CC_SUPPORT_FORTRAN

    49     help

    50       Enable building a FORTRAN compiler.

    51 

    52       Only select this if you know that your specific version of the

    53       compiler supports this language.

    54 

    55 config CC_LANG_JAVA

    56     bool

    57     prompt "Java"

    58     depends on CC_SUPPORT_JAVA

    59     help

    60       Enable building a Java compiler.

    61 

    62       Only select this if you know that your specific version of the

    63       compiler supports this language.

    64 

    65 config CC_LANG_ADA

    66     bool

    67     prompt "ADA (EXPERIMENTAL)"

    68     depends on CC_SUPPORT_ADA

    69     depends on EXPERIMENTAL

    70     help

    71       Enable building an Ada compiler.

    72 

    73       Only select this if you know that your specific version of the

    74       compiler supports this language.

    75 

    76 config CC_LANG_OBJC

    77     bool

    78     prompt "Objective-C (EXPERIMENTAL)"

    79     depends on CC_SUPPORT_OBJC

    80     depends on EXPERIMENTAL

    81     help

    82       Enable building an Objective C compiler.

    83 

    84       Only select this if you know that your specific version of the

    85       compiler supports this language.

    86 

    87 config CC_LANG_OBJCXX

    88     bool

    89     prompt "Objective-C++ (EXPERIMENTAL)"

    90     depends on EXPERIMENTAL

    91     depends on CC_SUPPORT_OBJCXX

    92     help

    93       Enable building an Objective C++ compiler.

    94 

    95       Only select this if you know that your specific version of the

    96       compiler supports this language.

    97 

    98 config CC_LANG_OTHERS

    99     string

   100     prompt "Other languages (EXPERIMENTAL)"

   101     default ""

   102     depends on EXPERIMENTAL

   103     help

   104       Enter here a comma-separated list of languages that you know your compiler

   105       supports, besides those listed above.

   106 

   107       Eg. gcc-4.1+ has a toy programming language, treelang. As it is not useful

   108       in real life, it is not available in the selection above.

   109 

   110 endif # ! BARE_METAL

   111 

   112 source "config.gen/cc.in.2"

   113 

   114 endmenu
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