Linux 构建 GCC 4.6 - libmpfr.so.4 - 无法打开共享对象文件
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Building GCC 4.6 - libmpfr.so.4 - cannot open shared object file
提问by user2023370
I'm trying to build GCC 4.6 under CentOS release 5.5 (Final). I've freshly built GMP-5.0.1, MPC-0.9, and MPFR-3.0.1, and have used the following configure command:
我正在尝试在 CentOS 5.5 版（最终版）下构建 GCC 4.6。我刚刚构建了 GMP-5.0.1、MPC-0.9 和 MPFR-3.0.1，并使用了以下配置命令：
../configure --prefix=/users/xxxx/apps/mygcc4.6 --disable-checking --enable-threads=posix --enable-languages=c,c++,fortran --with-mpfr=/users/xxxx/code/gcc/mpfr-3.0.1-install-cyprus --with-gmp=/users/xxxx/code/gcc/gmp-5.0.1-install-cyprus --with-mpc=/users/xxxx/code/gcc/mpc-0.9-install-cyprus
../configure --prefix=/users/xxxx/apps/mygcc4.6 --disable-checking --enable-threads=posix --enable-languages=c,c++,fortran --with-mpfr=/users/ xxxx/code/gcc/mpfr-3.0.1-install-cyprus --with-gmp=/users/xxxx/code/gcc/gmp-5.0.1-install-cyprus --with-mpc=/users/xxxx/代码/gcc/mpc-0.9-install-cyprus
After this, I run make and after about 5 minutes get the following error message:
在此之后，我运行 make 并在大约 5 分钟后收到以下错误消息：
checking for suffix of object files... configure: error: in /users/xxxx/code/gcc/gcc-4.6.0/obj/x86_64-unknown-linux-gnu/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
Seeconfig.log' for more details.
检查目标文件的后缀...配置：错误：在/users/xxxx/code/gcc/gcc-4.6.0/obj/x86_64-unknown-linux-gnu/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
Seeconfig.log 中了解更多详细信息。
The config.log indicates that a recently generated program (cc1) is involved:
config.log 表明涉及到最近生成的程序（cc1）：
/users/xxxx/code/gcc/gcc-4.6.0/obj/./gcc/cc1
/users/xxxx/code/gcc/gcc-4.6.0/obj/./gcc/cc1
Indeed if I run this program with no arguments I get the same error message found in config.log:
事实上，如果我不带参数运行这个程序，我会在 config.log 中得到相同的错误消息：
error while loading shared libraries: libmpfr.so.4: cannot open shared object file: No such file or directory
加载共享库时出错：libmpfr.so.4：无法打开共享对象文件：没有这样的文件或目录
However, libmpfr.so.4 is in the lib subdirectory of that provided to configure using the --with-mpfr flag, as seen above. I have LD_LIBRARY_PATH and LIBRARY_PATH empty. Any idea how I can get past this error?
但是，libmpfr.so.4 位于使用 --with-mpfr 标志提供配置的 lib 子目录中，如上所示。我有 LD_LIBRARY_PATH 和 LIBRARY_PATH 空。知道如何克服这个错误吗？
采纳答案by Gunther Piez
Make sure your library is acutally in the directory given and not in some libsubdirectory. Use export LD_LIBRARY_PATH=/users/xxxx/code/gcc/mpfr-3.0.1-install-cyprusas you have already suggested ;-)
确保您的库确实在给定的目录中，而不是在某个lib子目录中。使用export LD_LIBRARY_PATH=/users/xxxx/code/gcc/mpfr-3.0.1-install-cyprus你已经建议;-)
回答by that_IT_guy
I know this thread is pretty outdated. But, I had to comment and say that after 5+ hours of banging my head against the wall on a very similar issue (checking for suffix of object files... configure: error: cannot compute suffix of object files: cannot compile) and having read the install manual, a multitude of forums, and trying various things on the system in question I found this brief but very useful post. The issue was precisely related to LD_LIBRARY_PATH. Long story short, when building from source if you hit this wall export the LD_LIBRARY_PATH variable to point into the source build directory for the libs. Worked for me anyway.
我知道这个线程已经过时了。但是，我不得不评论并说，在一个非常相似的问题（检查目标文件的后缀...配置：错误：无法计算目标文件的后缀：无法编译）上我的头撞到墙上 5 个多小时之后，并且阅读安装手册、大量论坛并在相关系统上尝试各种操作后，我发现这篇简短但非常有用的帖子。该问题与 LD_LIBRARY_PATH 完全相关。长话短说，当从源代码构建时，如果你碰到这堵墙，导出 LD_LIBRARY_PATH 变量以指向 libs 的源构建目录。无论如何都为我工作。
Good luck folks.
祝大家好运。
回答by Arnab Sanyal
I know that this thread is pretty outdated. I faced similar issues while installing mpfron WSL. The build was fine and mpfr installed correctly but when I wrote a small C file to see if I could access the header file and print the version fo the installation - I could compile the C file but When I tried to run the compiled object - it would give me an error. The C file was,
我知道这个线程已经过时了。我在 WSL 上安装mpfr时遇到了类似的问题。构建很好并且 mpfr 安装正确，但是当我编写一个小的 C 文件以查看是否可以访问头文件并打印安装版本时 - 我可以编译 C 文件但是当我尝试运行编译对象时 - 它会给我一个错误。C文件是，
#include <stdio.h>
#include <mpfr.h>
int main (void) {
printf ("MPFR library: %-12s\nMPFR header: %s (based on %d.%d.%d)\n",
mpfr_get_version (), MPFR_VERSION_STRING, MPFR_VERSION_MAJOR,
MPFR_VERSION_MINOR, MPFR_VERSION_PATCHLEVEL);
return 0;
}
I was compiling this with,
我正在编译这个，
gcc -o version mpfr_presence.c -lmpfr -lgmp
But when I tried to run this with ./version, I would get the following error,
但是当我尝试用 运行它时./version，我会收到以下错误，
./version: error while loading shared libraries: libmpfr.so.6: cannot open shared object file: No such file or directory
I solved this error using,
我解决了这个错误，
sudo apt-get update
sudo apt-get install libmpfr4
And then when it said that libmpfr4was already at its latest version, just to be sure,
然后当它说libmpfr4已经是最新版本时，可以肯定的是，
sudo apt-get install --reinstall libmpfr4
Now ./versiongives me,
现在./version给我，
MPFR library: 4.0.1
MPFR header: 4.0.1 (based on 4.0.1)
