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麻烦在64位RHEL5上构建gcc

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天儿真好，

在64位RHEL5盒子上，我们需要安装我们的32位应用程序 . 由于某些原因，我们需要使用gcc 4.0.3，所以我尝试首先在目标机器上安装该版本，就像我在32位目标平台上做了一千次 .

然而，这一次，我遇到了问题 . 我已经引导并将gcc 4.0.3转换为路径，让我们说/ foo . 像往常一样，我将LD_LIBRARY_PATH设置为指向包含共享库的目录：

$ echo $LD_LIBRARY_PATH
/foo/lib:/foo/lib/gcc/x86_64-unknown-linux-gnu/lib64:/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3:/lib64

这些目录中确实有必要的库：

$ ls /foo/lib/gcc/x86_64-unknown-linux-gnu/lib64
libgcc_s.so  libgcc_s.so.1
 $ ls /foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3
32           crtendS.o      libgcov.a        libmudflap.so.0.0.0  libmudflapth.so.0.0.0  libstdc++.so.6.0.7
crtbegin.o   include        libmudflap.a     libmudflapth.a       libstdc++.a            libsupc++.a
crtbeginS.o  install-tools  libmudflap.la    libmudflapth.la      libstdc++.la           libsupc++.la
crtbeginT.o  libgcc.a       libmudflap.so    libmudflapth.so      libstdc++.so
crtend.o     libgcc_eh.a    libmudflap.so.0  libmudflapth.so.0    libstdc++.so.6

但是，如果我尝试创建一个简单的程序，ld找不到libgcc_s：

$ gcc-4.0 t.cc
/foo/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/bin/ld: cannot find -lgcc_s
collect2: ld returned 1 exit status

为什么找不到libgcc_s.so库？

任何帮助赞赏！

斯特凡

gcc

2 回答

  • 1

    看来你的文件夹/ foo / lib / gcc / x86_64-unknown-linux-gnu / lib64里面没有包含libgcc_s.so . 为了实验，这样做：

    gcc-4.0 -v t.cc -L / foo / lib / gcc / x86_64-unknown-linux-gnu / lib64

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  • 0
    $ gcc-4.0 -v t.cc
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.0.3/configure --prefix=/foo --program-suffix=-4.0 --enable-version-specific-runtime-libs --enable-languages=c,c++ --with-gnu-as --with-gnu-ld
Thread model: posix
gcc version 4.0.3
 /foo/i686-pc-linux-gnu/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.0.3/cc1plus -quiet -v -iprefix /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/ -D_GNU_SOURCE t.cc -quiet -dumpbase t.cc -mtune=k8 -auxbase t -version -o /tmp/ccDiWiMk.s
ignoring nonexistent directory "/foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/include"
ignoring duplicate directory "/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include/c++"
ignoring duplicate directory "/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include/c++/x86_64-unknown-linux-gnu"
ignoring duplicate directory "/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include/c++/backward"
ignoring duplicate directory "/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include"
ignoring nonexistent directory "/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include  search starts here:
 /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include/c++
 /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include/c++/x86_64-unknown-linux-gnu
 /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include/c++/backward
 /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/include
 /usr/local/include
 /foo/include
 /usr/include
End of search list.
GNU C++ version 4.0.3 (x86_64-unknown-linux-gnu)
        compiled by GNU C version 4.1.2 20080704 (Red Hat 4.1.2-46).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
 /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/bin/as -V -Qy -o /tmp/ccAemlDJ.o /tmp/ccDiWiMk.s
GNU assembler version 2.19.1 (x86_64-unknown-linux-gnu) using BFD version (GNU Binutils) 2.19.1
 /foo/i686-pc-linux-gnu/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.0.3/collect2 --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 /usr/lib/../lib64/crt1.o /usr/lib/../lib64/crti.o /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/crtbegin.o -L/foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3 -L/foo/i686-pc-linux-gnu/bin/../lib/gcc -L/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3 -L/foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/lib -L/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/lib -L/foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../lib64 -L/foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../.. -L/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../lib64 -L/foo/lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../.. -L/lib/../lib64 -L/usr/lib/../lib64 /tmp/ccAemlDJ.o -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/crtend.o /usr/lib/../lib64/crtn.o
/foo/i686-pc-linux-gnu/bin/../lib/gcc/x86_64-unknown-linux-gnu/4.0.3/../../../../x86_64-unknown-linux-gnu/bin/ld: cannot find -lgcc_s
collect2: ld returned 1 exit status
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