Question

我想将/opt/vertica/lib64添加到系统库路径中，因此我执行以下步骤：
（1）将/opt/vertica/lib64添加到/etc/ld.so.conf，然后运行ldconfig，
（2）检查：

 bash# ldconfig -p | grep vertica
    libverticaodbc.so (libc6,x86-64) => /opt/vertica/lib64/libverticaodbc.so
    ......

但是当我跑＃34; ld -lverticaodbc --verbose＆＃34;命令：

==================================================
attempt to open /usr/x86_64-redhat-linux/lib64/libverticaodbc.so failed
attempt to open /usr/x86_64-redhat-linux/lib64/libverticaodbc.a failed
attempt to open /usr/local/lib64/libverticaodbc.so failed
attempt to open /usr/local/lib64/libverticaodbc.a failed
attempt to open /lib64/libverticaodbc.so failed
attempt to open /lib64/libverticaodbc.a failed
attempt to open /usr/lib64/libverticaodbc.so failed
attempt to open /usr/lib64/libverticaodbc.a failed
attempt to open /usr/x86_64-redhat-linux/lib/libverticaodbc.so failed
attempt to open /usr/x86_64-redhat-linux/lib/libverticaodbc.a failed
attempt to open /usr/lib64/libverticaodbc.so failed
attempt to open /usr/lib64/libverticaodbc.a failed
attempt to open /usr/local/lib/libverticaodbc.so failed
attempt to open /usr/local/lib/libverticaodbc.a failed
attempt to open /lib/libverticaodbc.so failed
attempt to open /lib/libverticaodbc.a failed
attempt to open /usr/lib/libverticaodbc.so failed
attempt to open /usr/lib/libverticaodbc.a failed
ld: cannot find -lverticaodbc

ld无法从verticaodbc找到/opt/vertica/lib64。

有人能提供一些线索吗？非常感谢！

Answer 1

ld是静态 linker。 ld.so是dynamic linker（ldconfig＆amp; ldd与动态链接器相关。）

您需要在链接时将-L/opt/vertica/lib64/添加到ld个参数中（通常应与gcc或g++相关联）。实际上，这意味着编辑您的构建基础架构 - 例如。你的Makefile - 添加几十个字符。

见ld.so(8)，ldd(1)，ld(1)，ldconfig(8)

另请阅读Drepper's paper: How To Write Shared Libraries，Program Library HowTo＆amp; Levine's book: Linkers and Loaders

为什么不能从/etc/ld.so.conf中的路径找到库？

1 个答案: