Re: [PATCH] libstdc++/complex: Remove implicit type casts in complex

[Weslley da Silva Pereira <weslley.spereira@gmail.com>]

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Hi Jonathan,

I am sorry for the delay. The mailing lists libstdc++@gcc.gnu.org and
gcc-patches@gcc.gnu.org have just too many emails, so your email got lost.
I hope my changes still make sense to be included in GCC. Please, find my
comments below.

On Thu, May 11, 2023 at 3:57 PM Jonathan Wakely <jwakely@redhat.com> wrote:

>
>
> On Mon, 27 Mar 2023 at 22:25, Weslley da Silva Pereira via Libstdc++ <
> libstdc++@gcc.gnu.org> wrote:
>
>> Dear all,
>>
>> Here follows a patch that removes implicit type casts in std::complex.
>>
>> *Description:* The current implementation of `complex<_Tp>` assumes that
>> `int, double, long double` are explicitly convertible to `_Tp`. Moreover,
>> it also assumes that:
>>
>> 1. `int` is implicitly convertible to `_Tp`, e.g., when using
>> `complex<_Tp>(1)`.
>> 2. `long double` can be attributed to a `_Tp` variable, e.g., when using
>> `const _Tp __pi_2 = 1.5707963267948966192313216916397514L`.
>>
>> This patch transforms the implicit casts (1) and (2) into explicit type
>> casts. As a result, `std::complex` is now able to support more types. One
>> example is the type `Eigen::Half` from
>> https://eigen.tuxfamily.org/dox-devel/Half_8h_source.html which does not
>> implement implicit type conversions.
>>
>> *ChangeLog:*
>> libstdc++-v3/ChangeLog:
>>
>>         * include/std/complex:
>>
>
> Thank you for the patch. Now that we're in developement stage 1 for GCC
> 14, it's time to consider it.
>
> You're missing a proper changelog entry, I suggest:
>
>        * include/std/complex (polar, __complex_sqrt)
>        (__complex_pow_unsigned, pow, __complex_acos): Replace implicit
>        conversions from int and long double to value_type.
>

I agree with your proposal for the changelog.


> You're also missing either a copyright assignment on file with the FSF
> (unless you've completed that paperwork?), or a DCO sign-off. Please see
> https://gcc.gnu.org/contribute.html#legal and https://gcc.gnu.org/dco.html
> for more details.
>

Here is my DCO sign-off:

*Copyright:*
Signed-off-by: Weslley da Silva Pereira <weslley.spereira@gmail.com>


>
>
>>
>> *Patch:* fix_complex.diff. (Also at
>> https://github.com/gcc-mirror/gcc/pull/84)
>>
>> *OBS:* I didn't find a good reason for adding new tests or test results
>> here since this is really a small upgrade (in my view) to std::complex.
>>
>
> I don't agree. The purpose of this is to support std::complex<Foo> for a
> type Foo without implicit conversions (which isn't required by the standard
> btw, only the floating-point types are required to work, but we can support
> others as an extension). Without tests, we don't know if that goal has been
> met, and we don't know if the goal continues to be met in future versions.
> A test would ensure that we don't accidentally re-introduce code requiring
> implicit conversions.
>
> With a suitable test, I think this patch will be OK for GCC 14.
>
> Thanks again for contributing.
>
>
>
*Tests:*
See the attached file `test_complex_eigenhalf.cpp`

*Test results:*
- When using x86-64 GCC (trunk), I obtained compilation errors as shown in
the attached text file. Live example at: https://godbolt.org/z/oa9M34h8P.
- I observed no errors after applying the suggested patch on my machine.
- I tried it with the flag `-Wall`. No warnings were shown.
- My machine configuration and my GCC build information are displayed in
the file `config.log` generated by the configuration step of GCC.

Let me know if I need to do anything else.

Thanks,
  Weslley

-- 
Weslley S. Pereira

[-- Attachment #2: compiler_log_gcctrunk.txt --]
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<source>: In function 'std::complex<_Tp> std::polar(const _Tp&, const _Tp&) [with _Tp = Eigen::half]':
<source>:13:20: error: could not convert '0' from 'int' to 'const Eigen::half&'
   13 |     z1 = std::polar(one);
      |          ~~~~~~~~~~^~~~~
      |                    |
      |                    int
<source>:13:20: note:   when instantiating default argument for call to 'std::complex<_Tp> std::polar(const _Tp&, const _Tp&) [with _Tp = Eigen::half]'
<source>: In function 'int main()':
<source>:13:20: error: invalid initialization of reference of type 'const Eigen::half&' from expression of type 'int'
In file included from <source>:1:
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:967:40: note: in passing argument 2 of 'std::complex<_Tp> std::polar(const _Tp&, const _Tp&) [with _Tp = Eigen::half]'
  967 |     polar(const _Tp& __rho, const _Tp& __theta)
      |                             ~~~~~~~~~~~^~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex: In instantiation of 'std::complex<_Tp> std::pow(const complex<_Tp>&, int) [with _Tp = Eigen::half]':
<source>:19:18:   required from here
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:967:40: note:    19 |     z3 = std::pow(z0, (unsigned)2);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:967:40: note:       |          ~~~~~~~~^~~~~~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1288:11: error: no matching function for call to 'std::complex<Eigen::half>::complex(int)'
 1288 |         ? complex<_Tp>(1) / std::__complex_pow_unsigned(__z, -(unsigned)__n)
      |           ^~~~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:153:28: note: candidate: 'template<class _Up> constexpr std::complex<_Tp>::complex(const std::complex<_Up>&) [with _Tp = Eigen::half]'
  153 |         _GLIBCXX_CONSTEXPR complex(const complex<_Up>& __z)
      |                            ^~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:153:28: note:   template argument deduction/substitution failed:
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1288:11: note:   mismatched types 'const std::complex<_Tp>' and 'int'
 1288 |         ? complex<_Tp>(1) / std::__complex_pow_unsigned(__z, -(unsigned)__n)
      |           ^~~~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:145:17: note: candidate: 'constexpr std::complex<_Tp>::complex(const std::complex<_Tp>&) [with _Tp = Eigen::half]'
  145 |       constexpr complex(const complex&) = default;
      |                 ^~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:145:25: note:   no known conversion for argument 1 from 'int' to 'const std::complex<Eigen::half>&'
  145 |       constexpr complex(const complex&) = default;
      |                         ^~~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:140:26: note: candidate: 'constexpr std::complex<_Tp>::complex(const _Tp&, const _Tp&) [with _Tp = Eigen::half]'
  140 |       _GLIBCXX_CONSTEXPR complex(const _Tp& __r = _Tp(), const _Tp& __i = _Tp())
      |                          ^~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:140:45: note:   no known conversion for argument 1 from 'int' to 'const Eigen::half&'
  140 |       _GLIBCXX_CONSTEXPR complex(const _Tp& __r = _Tp(), const _Tp& __i = _Tp())
      |                                  ~~~~~~~~~~~^~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex: In instantiation of 'std::complex<_Tp> std::__complex_sqrt(const complex<_Tp>&) [with _Tp = Eigen::half]':
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1195:58:   required from 'std::complex<_Tp> std::sqrt(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:140:45: note:  1195 |     sqrt(const complex<_Tp>& __z) { return __complex_sqrt(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:140:45: note:       |                                            ~~~~~~~~~~~~~~^~~~~~~~~~~~~
<source>:16:19:   required from here
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:140:45: note:    16 |     z2 = std::sqrt(z0);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:140:45: note:       |          ~~~~~~~~~^~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1174:25: error: conversion from 'float' to non-scalar type 'Eigen::half' requested
 1174 |           _Tp __t = sqrt(2 * (std::abs(__z) + abs(__x)));
      |                     ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex: In instantiation of 'std::complex<_Tp> std::__complex_acos(const complex<_Tp>&) [with _Tp = Eigen::half]':
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2214:28:   required from 'std::complex<_Tp> std::acos(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1174:25: error:  2214 |     { return __complex_acos(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1174:25: error:       |              ~~~~~~~~~~~~~~^~~~~~~~~~~~~
<source>:28:19:   required from here
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1174:25: error:    28 |     z5 = std::acos(z0);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1174:25: error:       |          ~~~~~~~~~^~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error: conversion from 'long double' to non-scalar type 'const Eigen::half' requested
 2038 |       const _Tp __pi_2 = 1.5707963267948966192313216916397514L;
      |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex: In instantiation of '_Tp std::__complex_arg(const complex<_Tp>&) [with _Tp = Eigen::half]':
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:919:56:   required from '_Tp std::arg(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:   919 |     arg(const complex<_Tp>& __z) { return __complex_arg(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |                                           ~~~~~~~~~~~~~^~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1071:55:   required from 'std::complex<_Tp> std::__complex_log(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  1071 |     { return complex<_Tp>(log(std::abs(__z)), std::arg(__z)); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |                                               ~~~~~~~~^~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:1086:56:   required from 'std::complex<_Tp> std::log(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  1086 |     log(const complex<_Tp>& __z) { return __complex_log(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |                                           ~~~~~~~~~~~~~^~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2350:22:   required from 'std::complex<_Tp> std::__complex_asinh(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  2350 |       return std::log(__t + __z);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |              ~~~~~~~~^~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2369:29:   required from 'std::complex<_Tp> std::asinh(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  2369 |     { return __complex_asinh(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |              ~~~~~~~~~~~~~~~^~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2230:23:   required from 'std::complex<_Tp> std::__complex_asin(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  2230 |       __t = std::asinh(__t);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |             ~~~~~~~~~~^~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2250:28:   required from 'std::complex<_Tp> std::asin(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  2250 |     { return __complex_asin(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |              ~~~~~~~~~~~~~~^~~~~~~~~~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2037:46:   required from 'std::complex<_Tp> std::__complex_acos(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  2037 |       const std::complex<_Tp> __t = std::asin(__z);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |                                     ~~~~~~~~~^~~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2214:28:   required from 'std::complex<_Tp> std::acos(const complex<_Tp>&) [with _Tp = Eigen::half]'
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:  2214 |     { return __complex_acos(__z.__rep()); }
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |              ~~~~~~~~~~~~~~^~~~~~~~~~~~~
<source>:28:19:   required from here
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:    28 |     z5 = std::acos(z0);
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:2038:26: error:       |          ~~~~~~~~~^~~~
/opt/compiler-explorer/gcc-trunk-20231103/include/c++/14.0.0/complex:904:20: error: could not convert 'std::atan2((& __z)->std::complex<Eigen::half>::imag().Eigen::half::operator float(), (& __z)->std::complex<Eigen::half>::real().Eigen::half::operator float())' from 'float' to 'Eigen::half'
  904 |     { return  atan2(__z.imag(), __z.real()); }
      |               ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
      |                    |
      |                    float
Compiler returned: 1

[-- Attachment #3: test_complex_eigenhalf.cpp --]
[-- Type: text/x-c++src, Size: 681 bytes --]

#include <complex>
#include <Eigen/Core>

int main() {
    // Constants
    const Eigen::half one(1);
    const std::complex<Eigen::half> z0(one);

    // Local variables
    std::complex<Eigen::half> z1, z2, z3, z4, z5;

    // Assign using polar coordinates, second coordinate is zero
    z1 = std::polar(one);

    // Compute the square root
    z2 = std::sqrt(z0);

    // Compute the pow using an unsigned power
    z3 = std::pow(z0, (unsigned)2);

    // Compute the pow using a positive integer power
    z3 = std::pow(z0, 2);

    // Compute the pow using a negative integer power
    z4 = std::pow(z0, -2);

    // Compute the acos
    z5 = std::acos(z0);

    return 0;
}

[-- Attachment #4: config.log --]
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This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by configure, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ ../gcc/configure --disable-multilib --disable-bootstrap

## --------- ##
## Platform. ##
## --------- ##

hostname = weslleyp-XPS-15-9510
uname -m = x86_64
uname -r = 5.15.0-88-generic
uname -s = Linux
uname -v = #98~20.04.1-Ubuntu SMP Mon Oct 9 16:43:45 UTC 2023

/usr/bin/uname -p = x86_64
/bin/uname -X     = unknown

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/usr/bin/arch -k       = unknown
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/bin/universe          = unknown

PATH: /home/weslleyp/gems/bin
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## ----------- ##
## Core tests. ##
## ----------- ##

configure:2396: checking build system type
configure:2410: result: x86_64-pc-linux-gnu
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configure:4205: checking for gcc
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configure:4232: result: gcc
configure:4461: checking for C compiler version
configure:4470: gcc --version >&5
gcc (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:4481: $? = 0
configure:4470: gcc -v >&5
Using built-in specs.
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COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
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Target: x86_64-linux-gnu
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Thread model: posix
gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.2) 
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gcc: error: unrecognized command line option '-V'
gcc: fatal error: no input files
compilation terminated.
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gcc: error: unrecognized command line option '-qversion'; did you mean '--version'?
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compilation terminated.
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g++ (Ubuntu 9.4.0-1ubuntu1~20.04.2) 9.4.0
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

configure:5228: $? = 0
configure:5217: g++ -v >&5
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none:hsa
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.4.0-1ubuntu1~20.04.2' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-9-9QDOt0/gcc-9-9.4.0/debian/tmp-nvptx/usr,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.2) 
configure:5228: $? = 0
configure:5217: g++ -V >&5
g++: error: unrecognized command line option '-V'
g++: fatal error: no input files
compilation terminated.
configure:5228: $? = 1
configure:5217: g++ -qversion >&5
g++: error: unrecognized command line option '-qversion'; did you mean '--version'?
g++: fatal error: no input files
compilation terminated.
configure:5228: $? = 1
configure:5232: checking whether we are using the GNU C++ compiler
configure:5251: g++ -c   conftest.cpp >&5
configure:5251: $? = 0
configure:5260: result: yes
configure:5269: checking whether g++ accepts -g
configure:5289: g++ -c -g  conftest.cpp >&5
configure:5289: $? = 0
configure:5330: result: yes
configure:5379: checking whether g++ accepts -static-libstdc++ -static-libgcc
configure:5396: g++ -o conftest -g -O2   -static-libstdc++ -static-libgcc conftest.cpp  >&5
configure:5396: $? = 0
configure:5397: result: yes
configure:5461: checking for gnatbind
configure:5491: result: no
configure:5553: checking for gnatmake
configure:5583: result: no
configure:5602: checking whether compiler driver understands Ada and is recent enough
configure:5629: result: no
configure:5683: checking for gdc
configure:5713: result: no
configure:5732: checking whether the D compiler works
configure:5749: result: no
configure:5757: checking how to compare bootstrapped objects
configure:5782: result: cmp --ignore-initial=16 $$f1 $$f2
configure:5849: checking whether g++ supports C++11 features by default
configure:6145: g++ -c -g -O2  conftest.cpp >&5
configure:6145: $? = 0
configure:6152: result: yes
configure:7926: checking for objdir
configure:7941: result: .libs
configure:8111: checking for the correct version of gmp.h
configure:8130: gcc -c -g -O2   conftest.c >&5
configure:8130: $? = 0
configure:8148: gcc -c -g -O2   conftest.c >&5
configure:8148: $? = 0
configure:8149: result: yes
configure:8165: checking for the correct version of mpfr.h
configure:8183: gcc -c -g -O2   conftest.c >&5
configure:8183: $? = 0
configure:8200: gcc -c -g -O2   conftest.c >&5
configure:8200: $? = 0
configure:8201: result: yes
configure:8218: checking for the correct version of mpc.h
configure:8235: gcc -c -g -O2   conftest.c >&5
configure:8235: $? = 0
configure:8251: gcc -c -g -O2   conftest.c >&5
configure:8251: $? = 0
configure:8252: result: yes
configure:8270: checking for the correct version of the gmp/mpfr libraries
configure:8294: gcc -o conftest -g -O2    conftest.c  -lmpc -lmpfr -lgmp >&5
configure:8294: $? = 0
configure:8295: result: yes
configure:8310: checking for the correct version of the mpc libraries
configure:8331: gcc -o conftest -g -O2    conftest.c  -lmpc -lmpfr -lgmp >&5
configure:8331: $? = 0
configure:8332: result: yes
configure:8557: checking for isl 0.15 or later
configure:8570: gcc -o conftest -g -O2      -lisl -lmpc -lmpfr -lgmp conftest.c  -lisl -lgmp >&5
conftest.c:11:10: fatal error: isl/schedule.h: No such file or directory
   11 | #include <isl/schedule.h>
      |          ^~~~~~~~~~~~~~~~
compilation terminated.
configure:8570: $? = 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define HAVE_CXX11 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h.  */
| #include <isl/schedule.h>
| int
| main ()
| {
| isl_options_set_schedule_serialize_sccs (NULL, 0);
|   ;
|   return 0;
| }
configure:8577: result: no
configure:8581: result: required isl version is 0.15 or later
configure:9804: checking for default BUILD_CONFIG
configure:9836: result: 
configure:9841: checking for --enable-vtable-verify
configure:9854: result: no
configure:10509: checking for bison
configure:10525: found /usr/bin/bison
configure:10536: result: bison -y
configure:10556: checking for bison
configure:10572: found /usr/bin/bison
configure:10583: result: bison
configure:10603: checking for gm4
configure:10633: result: no
configure:10603: checking for gnum4
configure:10633: result: no
configure:10603: checking for m4
configure:10619: found /usr/bin/m4
configure:10630: result: m4
configure:10650: checking for flex
configure:10666: found /usr/bin/flex
configure:10677: result: flex
configure:10698: checking for flex
configure:10714: found /usr/bin/flex
configure:10725: result: flex
configure:10745: checking for makeinfo
configure:10775: result: no
configure:10806: checking for expect
configure:10836: result: no
configure:10855: checking for runtest
configure:10885: result: no
configure:11000: checking for ar
configure:11016: found /usr/bin/ar
configure:11027: result: ar
configure:11141: checking for as
configure:11157: found /usr/bin/as
configure:11168: result: as
configure:11282: checking for dlltool
configure:11312: result: no
configure:11423: checking for dsymutil
configure:11439: found /usr/bin/dsymutil
configure:11450: result: dsymutil
configure:11564: checking for ld
configure:11580: found /usr/bin/ld
configure:11591: result: ld
configure:11705: checking for lipo
configure:11735: result: no
configure:11846: checking for nm
configure:11862: found /usr/bin/nm
configure:11873: result: nm
configure:11987: checking for ranlib
configure:12003: found /usr/bin/ranlib
configure:12014: result: ranlib
configure:12123: checking for strip
configure:12139: found /usr/bin/strip
configure:12150: result: strip
configure:12259: checking for windres
configure:12289: result: no
configure:12400: checking for windmc
configure:12430: result: no
configure:12541: checking for objcopy
configure:12557: found /usr/bin/objcopy
configure:12568: result: objcopy
configure:12682: checking for objdump
configure:12698: found /usr/bin/objdump
configure:12709: result: objdump
configure:12823: checking for otool
configure:12853: result: no
configure:12964: checking for readelf
configure:12980: found /usr/bin/readelf
configure:12991: result: readelf
configure:13021: checking for -plugin option
configure:13141: result: --plugin /usr/lib/gcc/x86_64-linux-gnu/9/liblto_plugin.so
configure:13288: checking for cc
configure:13304: found /usr/bin/cc
configure:13315: result: cc
configure:13449: checking for c++
configure:13465: found /usr/bin/c++
configure:13476: result: c++
configure:13610: checking for gcc
configure:13626: found /usr/bin/gcc
configure:13637: result: gcc
configure:13766: checking for gfortran
configure:13782: found /usr/bin/gfortran
configure:13793: result: gfortran
configure:13927: checking for gccgo
configure:13957: result: no
configure:14088: checking for gdc
configure:14118: result: no
configure:14249: checking for gm2
configure:14279: result: no
configure:14340: checking for ar
configure:14373: result: no
configure:14490: checking for ar
configure:14506: found /usr/bin/ar
configure:14517: result: ar
configure:14570: checking for as
configure:14603: result: no
configure:14720: checking for as
configure:14736: found /usr/bin/as
configure:14747: result: as
configure:14800: checking for dlltool
configure:14833: result: no
configure:14950: checking for dlltool
configure:14980: result: no
configure:15030: checking for dsymutil
configure:15063: result: no
configure:15180: checking for dsymutil
configure:15196: found /usr/bin/dsymutil
configure:15207: result: dsymutil
configure:15260: checking for ld
configure:15293: result: no
configure:15410: checking for ld
configure:15426: found /usr/bin/ld
configure:15437: result: ld
configure:15490: checking for lipo
configure:15523: result: no
configure:15640: checking for lipo
configure:15670: result: no
configure:15720: checking for nm
configure:15753: result: no
configure:15870: checking for nm
configure:15886: found /usr/bin/nm
configure:15897: result: nm
configure:15950: checking for objcopy
configure:15983: result: no
configure:16100: checking for objcopy
configure:16116: found /usr/bin/objcopy
configure:16127: result: objcopy
configure:16180: checking for objdump
configure:16213: result: no
configure:16330: checking for objdump
configure:16346: found /usr/bin/objdump
configure:16357: result: objdump
configure:16410: checking for otool
configure:16443: result: no
configure:16560: checking for otool
configure:16590: result: no
configure:16640: checking for ranlib
configure:16673: result: no
configure:16790: checking for ranlib
configure:16806: found /usr/bin/ranlib
configure:16817: result: ranlib
configure:16870: checking for readelf
configure:16903: result: no
configure:17020: checking for readelf
configure:17036: found /usr/bin/readelf
configure:17047: result: readelf
configure:17100: checking for strip
configure:17133: result: no
configure:17250: checking for strip
configure:17266: found /usr/bin/strip
configure:17277: result: strip
configure:17330: checking for windres
configure:17363: result: no
configure:17480: checking for windres
configure:17510: result: no
configure:17560: checking for windmc
configure:17593: result: no
configure:17710: checking for windmc
configure:17740: result: no
configure:17768: checking where to find the target ar
configure:17801: result: host tool
configure:17810: checking where to find the target as
configure:17843: result: host tool
configure:17852: checking where to find the target cc
configure:17875: result: just compiled
configure:17894: checking where to find the target c++
configure:17920: result: just compiled
configure:17939: checking where to find the target c++ for libstdc++
configure:17965: result: just compiled
configure:17984: checking where to find the target dlltool
configure:18017: result: host tool
configure:18026: checking where to find the target dsymutil
configure:18048: result: host tool
configure:18057: checking where to find the target gcc
configure:18080: result: just compiled
configure:18099: checking where to find the target gfortran
configure:18125: result: just compiled
configure:18144: checking where to find the target gccgo
configure:18180: result: host tool
configure:18189: checking where to find the target gdc
configure:18225: result: host tool
configure:18234: checking where to find the target gm2
configure:18270: result: host tool
configure:18279: checking where to find the target ld
configure:18312: result: host tool
configure:18321: checking where to find the target lipo
configure:18343: result: host tool
configure:18352: checking where to find the target nm
configure:18385: result: host tool
configure:18394: checking where to find the target objcopy
configure:18427: result: host tool
configure:18436: checking where to find the target objdump
configure:18469: result: host tool
configure:18478: checking where to find the target otool
configure:18500: result: host tool
configure:18509: checking where to find the target ranlib
configure:18542: result: host tool
configure:18551: checking where to find the target readelf
configure:18584: result: host tool
configure:18593: checking where to find the target strip
configure:18626: result: host tool
configure:18635: checking where to find the target windres
configure:18668: result: host tool
configure:18677: checking where to find the target windmc
configure:18710: result: host tool
configure:18747: checking whether to enable maintainer-specific portions of Makefiles
configure:18756: result: no
configure:18993: creating ./config.status

## ---------------------- ##
## Running config.status. ##
## ---------------------- ##

This file was extended by config.status, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = 
  CONFIG_HEADERS  = 
  CONFIG_LINKS    = 
  CONFIG_COMMANDS = 
  $ ./config.status 

on weslleyp-XPS-15-9510

config.status:1087: creating Makefile

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_c_compiler_gnu=yes
ac_cv_cxx_compiler_gnu=yes
ac_cv_env_AR_FOR_TARGET_set=
ac_cv_env_AR_FOR_TARGET_value=
ac_cv_env_AR_set=
ac_cv_env_AR_value=
ac_cv_env_AS_FOR_TARGET_set=
ac_cv_env_AS_FOR_TARGET_value=
ac_cv_env_AS_set=
ac_cv_env_AS_value=
ac_cv_env_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_FOR_TARGET_set=
ac_cv_env_CC_FOR_TARGET_value=
ac_cv_env_CC_set=
ac_cv_env_CC_value=
ac_cv_env_CFLAGS_set=
ac_cv_env_CFLAGS_value=
ac_cv_env_CPPFLAGS_set=
ac_cv_env_CPPFLAGS_value=
ac_cv_env_CXXFLAGS_set=
ac_cv_env_CXXFLAGS_value=
ac_cv_env_CXX_FOR_TARGET_set=
ac_cv_env_CXX_FOR_TARGET_value=
ac_cv_env_CXX_set=
ac_cv_env_CXX_value=
ac_cv_env_DLLTOOL_FOR_TARGET_set=
ac_cv_env_DLLTOOL_FOR_TARGET_value=
ac_cv_env_DLLTOOL_set=
ac_cv_env_DLLTOOL_value=
ac_cv_env_DSYMUTIL_FOR_TARGET_set=
ac_cv_env_DSYMUTIL_FOR_TARGET_value=
ac_cv_env_DSYMUTIL_set=
ac_cv_env_DSYMUTIL_value=
ac_cv_env_GCC_FOR_TARGET_set=
ac_cv_env_GCC_FOR_TARGET_value=
ac_cv_env_GDC_FOR_TARGET_set=
ac_cv_env_GDC_FOR_TARGET_value=
ac_cv_env_GFORTRAN_FOR_TARGET_set=
ac_cv_env_GFORTRAN_FOR_TARGET_value=
ac_cv_env_GM2_FOR_TARGET_set=
ac_cv_env_GM2_FOR_TARGET_value=
ac_cv_env_GOC_FOR_TARGET_set=
ac_cv_env_GOC_FOR_TARGET_value=
ac_cv_env_LDFLAGS_set=
ac_cv_env_LDFLAGS_value=
ac_cv_env_LD_FOR_TARGET_set=
ac_cv_env_LD_FOR_TARGET_value=
ac_cv_env_LD_set=
ac_cv_env_LD_value=
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_LIPO_FOR_TARGET_set=
ac_cv_env_LIPO_FOR_TARGET_value=
ac_cv_env_LIPO_set=
ac_cv_env_LIPO_value=
ac_cv_env_NM_FOR_TARGET_set=
ac_cv_env_NM_FOR_TARGET_value=
ac_cv_env_NM_set=
ac_cv_env_NM_value=
ac_cv_env_OBJCOPY_FOR_TARGET_set=
ac_cv_env_OBJCOPY_FOR_TARGET_value=
ac_cv_env_OBJCOPY_set=
ac_cv_env_OBJCOPY_value=
ac_cv_env_OBJDUMP_FOR_TARGET_set=
ac_cv_env_OBJDUMP_FOR_TARGET_value=
ac_cv_env_OBJDUMP_set=
ac_cv_env_OBJDUMP_value=
ac_cv_env_OTOOL_FOR_TARGET_set=
ac_cv_env_OTOOL_FOR_TARGET_value=
ac_cv_env_OTOOL_set=
ac_cv_env_OTOOL_value=
ac_cv_env_RANLIB_FOR_TARGET_set=
ac_cv_env_RANLIB_FOR_TARGET_value=
ac_cv_env_RANLIB_set=
ac_cv_env_RANLIB_value=
ac_cv_env_READELF_FOR_TARGET_set=
ac_cv_env_READELF_FOR_TARGET_value=
ac_cv_env_READELF_set=
ac_cv_env_READELF_value=
ac_cv_env_STRIP_FOR_TARGET_set=
ac_cv_env_STRIP_FOR_TARGET_value=
ac_cv_env_STRIP_set=
ac_cv_env_STRIP_value=
ac_cv_env_WINDMC_FOR_TARGET_set=
ac_cv_env_WINDMC_FOR_TARGET_value=
ac_cv_env_WINDMC_set=
ac_cv_env_WINDMC_value=
ac_cv_env_WINDRES_FOR_TARGET_set=
ac_cv_env_WINDRES_FOR_TARGET_value=
ac_cv_env_WINDRES_set=
ac_cv_env_WINDRES_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_build_configargs_set=
ac_cv_env_build_configargs_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_host_configargs_set=
ac_cv_env_host_configargs_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_env_target_configargs_set=
ac_cv_env_target_configargs_value=
ac_cv_host=x86_64-pc-linux-gnu
ac_cv_objext=o
ac_cv_path_SED=/usr/bin/sed
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_AR=ar
ac_cv_prog_AR_FOR_TARGET=ar
ac_cv_prog_AS=as
ac_cv_prog_AS_FOR_TARGET=as
ac_cv_prog_AWK=gawk
ac_cv_prog_BISON=bison
ac_cv_prog_CC_FOR_TARGET=cc
ac_cv_prog_CXX_FOR_TARGET=c++
ac_cv_prog_DSYMUTIL=dsymutil
ac_cv_prog_DSYMUTIL_FOR_TARGET=dsymutil
ac_cv_prog_FLEX=flex
ac_cv_prog_GCC_FOR_TARGET=gcc
ac_cv_prog_GFORTRAN_FOR_TARGET=gfortran
ac_cv_prog_LD=ld
ac_cv_prog_LD_FOR_TARGET=ld
ac_cv_prog_LEX=flex
ac_cv_prog_M4=m4
ac_cv_prog_NM=nm
ac_cv_prog_NM_FOR_TARGET=nm
ac_cv_prog_OBJCOPY=objcopy
ac_cv_prog_OBJCOPY_FOR_TARGET=objcopy
ac_cv_prog_OBJDUMP=objdump
ac_cv_prog_OBJDUMP_FOR_TARGET=objdump
ac_cv_prog_RANLIB=ranlib
ac_cv_prog_RANLIB_FOR_TARGET=ranlib
ac_cv_prog_READELF=readelf
ac_cv_prog_READELF_FOR_TARGET=readelf
ac_cv_prog_STRIP=strip
ac_cv_prog_STRIP_FOR_TARGET=strip
ac_cv_prog_YACC='bison -y'
ac_cv_prog_ac_ct_CC=gcc
ac_cv_prog_ac_ct_CXX=g++
ac_cv_prog_cc_c89=
ac_cv_prog_cc_c99=
ac_cv_prog_cc_g=yes
ac_cv_prog_cxx_g=yes
ac_cv_target=x86_64-pc-linux-gnu
acx_cv_cc_gcc_supports_ada=no
acx_cv_d_compiler_works=no
acx_cv_prog_LN=ln
ax_cv_cxx_compile_cxx11=yes
gcc_cv_isl=no
gcc_cv_prog_cmp_skip='cmp --ignore-initial=16 $$f1 $$f2'
gcc_cv_tool_dirs=/usr/local/libexec/gcc/x86_64-pc-linux-gnu/14.0.0:/usr/local/libexec/gcc/x86_64-pc-linux-gnu:/usr/lib/gcc/x86_64-pc-linux-gnu/14.0.0:/usr/lib/gcc/x86_64-pc-linux-gnu:/usr/local/x86_64-pc-linux-gnu/bin/x86_64-pc-linux-gnu/14.0.0:/usr/local/x86_64-pc-linux-gnu/bin:
gcc_cv_tool_prefix=/usr/local
lt_cv_objdir=.libs

## ----------------- ##
## Output variables. ##
## ----------------- ##

AR='ar'
AR_FOR_BUILD='$(AR)'
AR_FOR_TARGET='$(AR)'
AR_PLUGIN_OPTION='--plugin /usr/lib/gcc/x86_64-linux-gnu/9/liblto_plugin.so'
AS='as'
AS_FOR_BUILD='$(AS)'
AS_FOR_TARGET='$(AS)'
AWK='gawk'
BISON='bison'
BUILD_CONFIG=''
CC='gcc'
CC_FOR_BUILD='$(CC)'
CC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
CFLAGS='-g -O2'
CFLAGS_FOR_BUILD='-g -O2'
CFLAGS_FOR_TARGET='-g -O2'
COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'
CONFIGURE_GDB_TK=''
CPPFLAGS=''
CPPFLAGS_FOR_BUILD=''
CPP_FOR_BUILD=''
CXX='g++'
CXXFLAGS='-g -O2'
CXXFLAGS_FOR_BUILD='-g -O2'
CXXFLAGS_FOR_TARGET='-g -O2'
CXX_FOR_BUILD='$(CXX)'
CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xg++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `if test -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags; then $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes; else echo -funconfigured-libstdc++-v3 ; fi` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs'
DEBUG_PREFIX_CFLAGS_FOR_TARGET=''
DEFS='-DPACKAGE_NAME=\"\" -DPACKAGE_TARNAME=\"\" -DPACKAGE_VERSION=\"\" -DPACKAGE_STRING=\"\" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DHAVE_CXX11=1 -DLT_OBJDIR=\".libs/\"'
DLLTOOL='dlltool'
DLLTOOL_FOR_BUILD='$(DLLTOOL)'
DLLTOOL_FOR_TARGET='$(DLLTOOL)'
DSYMUTIL='dsymutil'
DSYMUTIL_FOR_BUILD='$(DSYMUTIL)'
DSYMUTIL_FOR_TARGET='$(DSYMUTIL)'
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EXEEXT=''
EXPECT='expect'
FLAGS_FOR_TARGET=' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
FLEX='flex'
GCC_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/'
GCC_SHLIB_SUBDIR=''
GDB_TK=''
GDC='no'
GDCFLAGS='-g -O2'
GDC_FOR_BUILD='$(GDC)'
GDC_FOR_TARGET='$(GDC)'
GFORTRAN_FOR_BUILD='$(GFORTRAN)'
GFORTRAN_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/'
GM2_FOR_TARGET='$(GM2)'
GNATBIND='no'
GNATMAKE='no'
GOC_FOR_BUILD='$(GOC)'
GOC_FOR_TARGET='$(GOC)'
HAVE_CXX11='1'
HAVE_CXX11_FOR_BUILD=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_GDB_TK=''
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
LD='ld'
LDFLAGS=''
LDFLAGS_FOR_BUILD=''
LDFLAGS_FOR_TARGET=''
LD_FOR_BUILD='$(LD)'
LD_FOR_TARGET='$(LD)'
LEX='flex'
LIBOBJS=''
LIBS=''
LIPO='lipo'
LIPO_FOR_TARGET='$(LIPO)'
LN='ln'
LN_S='ln -s'
LTLIBOBJS=''
M4='m4'
MAINT='#'
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE='#'
MAKEINFO='/home/weslleyp/storage/gcc/missing makeinfo'
NM='nm'
NM_FOR_BUILD='$(NM)'
NM_FOR_TARGET='$(NM)'
OBJCOPY='objcopy'
OBJCOPY_FOR_TARGET='$(OBJCOPY)'
OBJDUMP='objdump'
OBJDUMP_FOR_TARGET='$(OBJDUMP)'
OBJEXT='o'
OTOOL='otool'
OTOOL_FOR_TARGET='$(OTOOL)'
PACKAGE_BUGREPORT=''
PACKAGE_NAME=''
PACKAGE_STRING=''
PACKAGE_TARNAME=''
PACKAGE_URL=''
PACKAGE_VERSION=''
PATH_SEPARATOR=':'
PGO_BUILD_GEN_CFLAGS=''
PGO_BUILD_LTO_CFLAGS=''
PGO_BUILD_USE_CFLAGS=''
PICFLAG=''
PKG_CONFIG_PATH='/opt/intel/oneapi/vtune/2023.2.0/include/pkgconfig/lib64:/opt/intel/oneapi/tbb/2021.10.0/env/../lib/pkgconfig:/opt/intel/oneapi/mpi/2021.10.0/lib/pkgconfig:/opt/intel/oneapi/mkl/2023.2.0/lib/pkgconfig:/opt/intel/oneapi/dpl/2022.2.0/lib/pkgconfig:/opt/intel/oneapi/compiler/2023.2.1/lib/pkgconfig'
RANLIB='ranlib'
RANLIB_FOR_BUILD='$(RANLIB)'
RANLIB_FOR_TARGET='$(RANLIB)'
RANLIB_PLUGIN_OPTION='--plugin /usr/lib/gcc/x86_64-linux-gnu/9/liblto_plugin.so'
RAW_CXX_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/libsupc++/.libs'
READELF='readelf'
READELF_FOR_TARGET='$(READELF)'
RPATH_ENVVAR='LD_LIBRARY_PATH'
RUNTEST='runtest'
SED='/usr/bin/sed'
SHELL='/bin/bash'
STRIP='strip'
STRIP_FOR_TARGET='$(STRIP)'
SYSROOT_CFLAGS_FOR_TARGET=''
TOPLEVEL_CONFIGURE_ARGUMENTS='../gcc/configure --disable-multilib --disable-bootstrap'
WINDMC='windmc'
WINDMC_FOR_BUILD='$(WINDMC)'
WINDMC_FOR_TARGET='$(WINDMC)'
WINDRES='windres'
WINDRES_FOR_BUILD='$(WINDRES)'
WINDRES_FOR_TARGET='$(WINDRES)'
YACC='bison -y'
ac_ct_CC='gcc'
ac_ct_CXX='g++'
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias=''
build_configargs=' --cache-file=./config.cache '\''--disable-multilib'\'' '\''--disable-bootstrap'\'' '\''--enable-languages=c,c++,fortran,lto,objc'\'' --program-transform-name='\''s,y,y,'\'' --disable-option-checking --disable-year2038'
build_configdirs=' libiberty libcpp fixincludes'
build_cpu='x86_64'
build_libsubdir='build-x86_64-pc-linux-gnu'
build_noncanonical='x86_64-pc-linux-gnu'
build_os='linux-gnu'
build_subdir='build-x86_64-pc-linux-gnu'
build_tooldir='${exec_prefix}/x86_64-pc-linux-gnu'
build_vendor='pc'
compare_exclusions='gcc/cc*-checksum$(objext) | gcc/ada/*tools/* | gcc/m2/gm2-compiler-boot/M2Version* | gcc/m2/gm2-compiler-boot/SYSTEM* | gcc/m2/gm2version*'
configdirs=' intl libiberty zlib libbacktrace libcpp libcody libdecnumber fixincludes gcc libcc1 c++tools lto-plugin'
datadir='${datarootdir}'
datarootdir='${prefix}/share'
do_compare='cmp --ignore-initial=16 $$f1 $$f2'
docdir='${datarootdir}/doc/${PACKAGE}'
dvidir='${docdir}'
exec_prefix='${prefix}'
extra_host_libiberty_configure_flags='--enable-shared'
extra_host_zlib_configure_flags=''
extra_isl_gmp_configure_flags=''
extra_linker_plugin_configure_flags=''
extra_linker_plugin_flags=''
extra_mpc_gmp_configure_flags=''
extra_mpc_mpfr_configure_flags=''
extra_mpfr_configure_flags=''
gcc_host_pie=''
get_gcc_base_ver='cat'
gmpinc=''
gmplibs='-lmpc -lmpfr -lgmp'
host='x86_64-pc-linux-gnu'
host_alias=''
host_configargs=' --cache-file=./config.cache  '\''--disable-multilib'\'' '\''--disable-bootstrap'\'' '\''--enable-languages=c,c++,fortran,lto,objc'\'' --program-transform-name='\''s,y,y,'\'' --disable-option-checking --disable-year2038'
host_cpu='x86_64'
host_libs_picflag=''
host_noncanonical='x86_64-pc-linux-gnu'
host_os='linux-gnu'
host_pie='no'
host_shared='no'
host_subdir='.'
host_vendor='pc'
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
islinc=''
isllibs=''
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
oldincludedir='/usr/include'
pdfdir='${docdir}'
poststage1_ldflags='-static-libstdc++ -static-libgcc'
poststage1_libs=''
prefix='/usr/local'
program_transform_name='s,y,y,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
stage1_cflags='-g'
stage1_checking='--enable-checking=yes,types,extra'
stage1_languages='c,c++,lto'
stage1_ldflags='-static-libstdc++ -static-libgcc'
stage1_libs=''
stage2_werror_flag='--enable-werror-always'
sysconfdir='${prefix}/etc'
target='x86_64-pc-linux-gnu'
target_alias=''
target_configargs='--cache-file=./config.cache   '\''--disable-multilib'\'' '\''--disable-bootstrap'\'' '\''--enable-languages=c,c++,fortran,lto,objc'\'' --program-transform-name='\''s,y,y,'\'' --disable-option-checking --disable-year2038'
target_configdirs=' libgcc libbacktrace libgomp libatomic libitm libstdc++-v3 libsanitizer libvtv libssp libquadmath libgfortran libobjc'
target_cpu='x86_64'
target_noncanonical='x86_64-pc-linux-gnu'
target_os='linux-gnu'
target_subdir='x86_64-pc-linux-gnu'
target_vendor='pc'
tooldir='${exec_prefix}/x86_64-pc-linux-gnu'

## ------------------- ##
## File substitutions. ##
## ------------------- ##

alphaieee_frag='/dev/null'
host_makefile_frag='/dev/null'
ospace_frag='/dev/null'
serialization_dependencies='serdep.tmp'
target_makefile_frag='../gcc/config/mt-gnu'

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME ""
#define PACKAGE_TARNAME ""
#define PACKAGE_VERSION ""
#define PACKAGE_STRING ""
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define HAVE_CXX11 1
#define LT_OBJDIR ".libs/"

configure: exit 0