[已解决]fatal error: bits/c++config.h: No such file or directory

xg-sco

人造人 发表于 2021-8-9 22:40

[root@localhost chapter5]# g++ test2.cpp 
In file included from test2.cpp:1:0:
/usr/include/c++/4.8.2/iostream:38:28: fatal error: bits/c++config.h: No such file or directory
 #include <bits/c++config.h>
                            ^
compilation terminated.
[root@localhost chapter5]# file a.out
a.out: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=7ee0b059020fb47c71749930feab22cd4877bddf, not stripped

人造人

g++ -I /usr/include/c++/4.8.2/i686-redhat-linux test2.cpp
file a.out

xg-sco

人造人 发表于 2021-8-9 22:43

[root@localhost chapter5]# g++ -I /usr/include/c++/4.8.2/i686-redhat-linux test2.cpp
[root@localhost chapter5]# file a.out
a.out: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=7ee0b059020fb47c71749930feab22cd4877bddf, not stripped

人造人

xg-sco 发表于 2021-8-9 22:45

ls -F /usr/include/c++/4.8.2/i686-redhat-linux

xg-sco

人造人 发表于 2021-8-9 22:47

[root@localhost chapter5]# ls -F /usr/include/c++/4.8.2/i686-redhat-linux
bits/  ext/

人造人

xg-sco 发表于 2021-8-9 22:48

ls -F /usr/include/c++/4.8.2/i686-redhat-linux/ext/

xg-sco

人造人 发表于 2021-8-9 22:51

[root@localhost chapter5]# ls -F /usr/include/c++/4.8.2/i686-redhat-linux/ext/
opt_random.h

人造人

ls -F /usr/include/c++/4.8.5/x86_64-redhat-linux
ls -F /usr/include/c++/4.8.5

xg-sco

人造人 发表于 2021-8-9 23:03

[root@localhost chapter5]# ls -F /usr/include/c++/4.8.5/x86_64-redhat-linux
ls: cannot access /usr/include/c++/4.8.5/x86_64-redhat-linux: No such file or directory
[root@localhost chapter5]# ls -F /usr/include/c++/4.8.5
/usr/include/c++/4.8.5@

人造人

32
ignoring nonexistent directory "/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/x86_64-redhat-linux/32"

64
ignoring nonexistent directory "/usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../include/c++/4.8.5/x86_64-redhat-linux"

现在是 x86_64-redhat-linux 这个目录不存在，只有 i686-redhat-linux，而且这个目录是在 4.8.2 下面，当前的编译器版本是 4.8.5
而且这个 i686 是真的 i686，因为这里面没有 32 目录
我不知道为什么会发生这种情况，既然 4.8.5 下面没有这个目录，那就用 4.8.2 下面的 i686 版本吧
如果手动引用这个目录的话，32 位编译和 64 位编译都能过
那么，修复 4.8.5 下面的目录
cp -r /usr/include/c++/4.8.2/i686-redhat-linux /usr/include/c++/4.8.5/x86_64-redhat-linux
cd /usr/include/c++/4.8.5/x86_64-redhat-linux
ls -s . 32

cd
g++ test2.cpp
g++ -m32 test2.cpp
g++ -m64 test2.cpp

人造人

参考：https://stackoverflow.com/questi ... t-program-on-32-bit

xg-sco

人造人 发表于 2021-8-9 23:16

[root@localhost chapter5]# cp -r /usr/include/c++/4.8.2/i686-redhat-linux /usr/include/c++/4.8.5/x86_64-redhat-linux
[root@localhost chapter5]# cd /usr/include/c++/4.8.5/x86_64-redhat-linux
[root@localhost x86_64-redhat-linux]# ls -s . 32
ls: cannot access 32: No such file or directory
.:
total 4
4 bits  0 ext
[root@localhost chapter5]# g++ test2.cpp 
[root@localhost chapter5]# g++ -m32 test2.cpp 
In file included from test2.cpp:1:0:
/usr/include/c++/4.8.2/iostream:38:28: fatal error: bits/c++config.h: No such file or directory
 #include <bits/c++config.h>
                            ^
compilation terminated.
[root@localhost chapter5]# g++ -m64 test2.cpp 

人造人

xg-sco 发表于 2021-8-9 23:26

我不知道该说什么好，^_^
我居然把 ln 写成 ls
cd /usr/include/c++/4.8.5/x86_64-redhat-linux
ln -s .32
cd

g++ test2.cpp
g++ -m32 test2.cpp
g++ -m64 test2.cpp

人造人

cd /usr/include/c++/4.8.5/x86_64-redhat-linux
ln -s . 32

cd
g++ test2.cpp
g++ -m32 test2.cpp
g++ -m64 test2.cpp

xg-sco

人造人 发表于 2021-8-9 23:29
我不知道该说什么好，^_^
我居然把 ln 写成 ls
cd /usr/include/c++/4.8.5/x86_64-redhat-linux

好了，终于弄好了^_^

人造人

xg-sco 发表于 2021-8-9 23:34
好了，终于弄好了^_^

^_^