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无法在Solaris 10上使用GCC 5.5包含cmath

solaris-10 solaris gcc c++

bisarch · 技术社区 · 6 年前

我尝试使用gcc5.5.0在solaris10sparc机器上运行以下测试程序

#include <iostream>
#include <cmath>

int main()
{
    std::cout << "exp2(4) = " << std::exp2(4) << '\n'
              << "exp2(0.5) = " << std::exp2(0.5) << '\n'
              << "exp2(-4) = " << std::exp2(-4) << '\n';
    return 0;
}

下面是操作系统的详细信息,

~$ uname -a
SunOS sovms577 5.10 Generic_147147-26 sun4v sparc SUNW,SPARC-Enterprise-T5220
~$ cat /etc/release 
                   Oracle Solaris 10 1/13 s10s_u11wos_24a SPARC
  Copyright (c) 1983, 2013, Oracle and/or its affiliates. All rights reserved.
                            Assembled 17 January 2013

使用以下命令进行编译时,

g++ -std=c++11 -Wall test.cpp

我发现了以下错误,

In file included from /opt/csw/include/c++/5.5.0/cmath:44:0,
                 from test.cpp:2:
/opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/math.h:52:12: error: âstd::float_tâ has not been declared
 using std::float_t;
            ^
/opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/math.h:53:12: error: âstd::double_tâ has not been declared
 using std::double_t;
            ^
/opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/math.h:55:12: error: âstd::fpclassifyâ has not been declared
 using std::fpclassify;
            ^
/opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include-fixed/math.h:56:12: error: âstd::isfiniteâ has not been declared
 using std::isfinite;

here

0 回复 | 直到 6 年前

codeDr 6 年前

我发现了同样的错误。 /opt/csw/lib/gcc/sparc-sun-solaris2.10/5.5.0/include fixed/math.h 我替换了行:

#if __cplusplus >= 201103L
using std::float_t;

具有

#if 0 && __cplusplus >= 201103L
using std::float_t;

2019年4月24日更新

If you are attempting to compile C++11 on an unpatched, unupdated 
installation of Solaris 10, and are presenting this as a "fix", 
you do not understand what you are doing.

binutils-2.27.tar.bz2
cloog-0.18.1.tar.gz
gcc-5.5.0.tar.gz
gmp-5.1.2.tar.xz
mpc-1.0.1.tar.gz
mpfr-3.1.2.tar.xz

../configure --prefix=$TARGET_PATH/sx64
make
make install

我对gcc使用了以下配置:

../configure --prefix=$TARGET_PATH/sx64 --enable-languages=c,c++ --enable-threads=posix --enable-version-specific-runtime-libs --disable-libsanitizer --with-as=$TARGET_PATH/sx64/bin/as --with-ld=$TARGET_PATH/sx64/bin/ld --with-gnu-ld --with-gnu-as
make bootstrap
make install

必须使用--with as和--with ld让gcc使用构建的binutils版本,而不是损坏的系统版本。