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Re: gcc-help Digest of: get.39222_39222


I unset the C_INCLUDE_PATH to an
empty string then the compilation proceeds further.
But I don't know why I must unset C_INCLUDE_PATH.

> ---------- 已转发邮件 ----------
> From: xinsan Chen <xinsan.chen@gmail.com>
> To: gcc-help@gcc.gnu.org
> Date: Fri, 20 Nov 2009 11:26:24 +0800
> Subject: trouble building 4.4.2: 'CHAR_BIT' undeclared
> hi, all
>     I installed gmp4.2.4 and mpfr2.4.1 to /usr/local
>     Then, I tried to install gcc 4.4.2, but some errors occur.
>
>     %configure --prefix=/home/cj --enable-languages=c,c++,fortran
> --with-gmp=/usr/local/lib --with-mpfr=/usr/local/lib
>     %mke check  (is ok!)
>     %mke
>
>     C_INCLUDE_PATH=/usr/local/include:/usr/include
>     LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
>     LIBRARY_PATH=/usr/local/lib:$LIBRARY_PATH
>
> make[3]: Entering directory
> `/home/cj/gcc-4.4.2/host-x86_64-unknown-linux-gnu/gcc'
> gcc -c  -g -fkeep-inline-functions -DIN_GCC   -W -Wall -Wwrite-strings
> -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual
> -Wold-style-definition -Wc++-compat -Wmissing-format-attribute
> -fno-common  -DHAVE_CONFIG_H -I. -I. -I../.././gcc -I../.././gcc/.
> -I../.././gcc/../include -I../.././gcc/../libcpp/include
> -I/usr/include -I/usr/local/include -I../.././gcc/../libdecnumber
> -I../.././gcc/../libdecnumber/bid -I../libdecnumber
> ../.././gcc/c-lang.c -o c-lang.o
> In file included from ../.././gcc/input.h:25,
>                 from ../.././gcc/tree.h:27,
>                 from ../.././gcc/c-lang.c:27:
> ../.././gcc/../libcpp/include/line-map.h:66: error: 'CHAR_BIT'
> undeclared here (not in a function)
> ../.././gcc/../libcpp/include/line-map.h:66: error: bit-field 'reason'
> width not an integer constant
> ../.././gcc/../libcpp/include/line-map.h:66: warning: 'reason' is
> narrower than values of its type
> In file included from ../.././gcc/c-common.h:26,
>                 from ../.././gcc/c-tree.h:25,
>                 from ../.././gcc/c-lang.c:28:
> ../.././gcc/../libcpp/include/cpplib.h:198: error: bit-field 'type'
> width not an integer constant
> ../.././gcc/../libcpp/include/cpplib.h:198: warning: 'type' is
> narrower than values of its type
> In file included from ../.././gcc/c-common.h:26,
>                 from ../.././gcc/c-tree.h:25,
>                 from ../.././gcc/c-lang.c:28:
> ../.././gcc/../libcpp/include/cpplib.h:241:3: error: #error "Cannot
> find a least-32-bit signed integer type"
> ../.././gcc/../libcpp/include/cpplib.h:243: error: expected '=', ',',
> ';', 'asm' or '__attribute__' before 'cppchar_t'
> ../.././gcc/../libcpp/include/cpplib.h:244: error: expected '=', ',',
> ';', 'asm' or '__attribute__' before 'cppchar_signed_t'
> ../.././gcc/../libcpp/include/cpplib.h:732: error: expected '=', ',',
> ';', 'asm' or '__attribute__' before 'cpp_interpret_charconst'
> ../.././gcc/../libcpp/include/cpplib.h:743: error: expected '=', ',',
> ';', 'asm' or '__attribute__' before 'cpp_host_to_exec_charset'
> ../.././gcc/../libcpp/include/cpplib.h:870: error: expected '=', ',',
> ';', 'asm' or '__attribute__' before 'cpp_parse_escape'
> In file included from ../.././gcc/c-tree.h:26,
>                 from ../.././gcc/c-lang.c:28:
> ../.././gcc/toplev.h: In function 'floor_log2':
> ../.././gcc/toplev.h:193: warning: control reaches end of non-void function
> make[3]: *** [c-lang.o] Error 1
> make[3]: Leaving directory
> `/home/cj/gcc-4.4.2/host-x86_64-unknown-linux-gnu/gcc'
> make[2]: *** [all-stage1-gcc] Error 2
> make[2]: Leaving directory `/home/cj/gcc-4.4.2'
> make[1]: *** [stage1-bubble] Error 2
> make[1]: Leaving directory `/home/cj/gcc-4.4.2'
> make: *** [all] Error 2
>
> I think CHAR_BIT is defined in /usr/include/limits.h but why it cannot
> be searched.
>
> Juan
>
>


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