如何在不使用LD_LIBRARY_PATH的情况下将共享库的特定版本链接到makefile中?

I know that LD_LIBRARY_PATH is evil and it's a good habit to avoid using it. I have a program called server.c on a remote Solaris 9 server that holds two versions of openssl library (0.9.8 and 1.0.0) and I'm using gcc 3.4.6. My program need to link to 1.0.0a version. Because it's work environment, I don't have the right to modify anything in the openssl library directory. I figured out to compile my program with both -L and -R options without setting LD_LIBRARY_PATH and it worked fine. (I noticed it won't work without setting -R option) But the compiled program kept linking to /usr/local/ssl/lib/libssl.so.0.9.8 instead of /.../libssl.so.1.0.0. Is there a work-around for this?

我知道LD_LIBRARY_PATH是邪恶的，它是避免使用它的好习惯。我有一个程序叫做服务器。在一个远程Solaris 9服务器上，它拥有两个版本的openssl库(0.9.8和1.0.0)，而我使用的是gcc 3.4.6。我的程序需要链接到1.0.0a版本。因为它是工作环境，所以我没有权限在openssl库目录中修改任何东西。我找到了在不设置LD_LIBRARY_PATH的情况下使用-L和-R选项编译我的程序，并且它运行良好。(我注意到它不会在没有设置-R选项的情况下工作)，但是编译后的程序会链接到/usr/local/ssl/lib/libssl.so.0.9.8而不是/…/ libssl.1.0.0。这有解决办法吗?

BTW, please correct me if I'm wrong: is it the -R option that actually "link" the shared libraries at runtime and -L option only "load" shared libraries at compile time?

顺便说一下，如果我错了，请纠正我:它是-R选项，实际上是在运行时“链接”共享库，而-L选项只在编译时“加载”共享库吗?

Any help will be much appreciated!

非常感谢您的帮助!

Z.Zen

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Here is my Makefile:

这是我的Makefile。

CC = gcc
OPENSSLDIR = /usr/local/ssl
CFLAGS = -g -Wall -W -I${OPENSSLDIR}/include -O2 -D_REENTRANT -D__EXTENSIONS__ 

RPATH = -R${OPENSSLDIR}/lib
LD = ${RPATH} -L${OPENSSLDIR}/lib -lssl -lcrypto -lsocket -lnsl -lpthread

OBJS = common.o

PROGS = server

all: ${PROGS}

server: server.o ${OBJS}
        ${CC} server.o ${OBJS} -o server ${LD}


clean:;
        ${RM} ${PROGS} *.ln *.BAK *.bak *.o

2 个解决方案

#1

I figured out that I can include the absolute path of the specific library that I want to link to and it worked fine for me:

我发现我可以将我想要链接的特定库的绝对路径包括进来，这对我来说很好:

LD = ${RPATH} -lsocket -lnsl -lpthread ${OPENSSLDIR}/lib/libssl.so.1.0.0 \
         ${OPENSSLDIR}/lib/libcrypto.so.1.0.0

If you are using g++, Piotr Lesnicki pointed out that -l:libssl.so.1.0.0 also works. See more at the original post.

如果使用g++， Piotr Lesnicki指出-l: libssl.1.0.0也有效。更多详情请见原文。

#2

Do you have any links to the SSL lib? If not, can you create a link to the the desired SSL lib like

你有SSL lib的链接吗?如果没有，您可以创建一个到所需的SSL lib的链接。

ln -s libssl.so.1.0.0 libssl.so

in the ssl directory and try it

在ssl目录中并尝试它。

#1