请教：gcc的静态与动态链接库的问题

liangtf

gcc -static  选项为指定程序所用库为静态链接，

请问我可不可以只指定某几个库为静态链接，另几个为动态链接呢？
怎么做呀？     

无双

FAQ中有-Bstatic用法
你看看

liangtf

对不起，老大，在哪个FAQ     

liangtf

是C/C++版顶上的吧？对不起对不起。。。

suzhengchun

我直接使用-static，报错找不到-lm。。。看了一下，系统中没有libm.a。。。。

man ld

手册页永远是最好的，我也是刚看的手册页，现分享如下：

       -l namespec
       --library=namespec
           Add the archive or object file specified by namespec to the list of
           files to link.  This option may be used any number of times.  If
           namespec is of the form :filename, ld will search the library path
           for a file called filename, otherwise it will search the library
           path for a file called libnamespec.a.

           On systems which support shared libraries, ld may also search for
           files other than libnamespec.a.  Specifically, on ELF and SunOS
           systems, ld will search a directory for a library called
           libnamespec.so before searching for one called libnamespec.a.  (By
           convention, a ".so" extension indicates a shared library.)  Note
           that this behavior does not apply to :filename, which always
           specifies a file called filename.

           The linker will search an archive only once, at the location where
           it is specified on the command line.  If the archive defines a
           symbol which was undefined in some object which appeared before the
           archive on the command line, the linker will include the
           appropriate file(s) from the archive.  However, an undefined symbol
           in an object appearing later on the command line will not cause the
           linker to search the archive again.

           See the -( option for a way to force the linker to search archives
           multiple times.

           You may list the same archive multiple times on the command line.

           This type of archive searching is standard for Unix linkers.
           However, if you are using ld on AIX, note that it is different from
           the behaviour of the AIX linker.



之前试了一个哥们说的-Bstatic和-Bdynamic选项，对我的RHEL6.2 Linux系统没有起作用：
aaaa@localhost:6:57:00:compress$ make -f Makefile.static
gcc  -o cpinfo -L…………lib  Time_use.o cpinfo.o  -lmfhdf -ldf -lsz -Bdynamic -lm -Bstatic -lhdf5_cpp -Bstatic -lhdf5_hl -Bstatic -lhdf5 -lstdc++
aaaaa@localhost:6:57:33:compress$ ldd cpinfo
        linux-vdso.so.1 =>  (0x00007fff5e1ff000)
        libm.so.6 => /lib64/libm.so.6 (0x0000003daf800000)
        libhdf5_cpp.so.7 => /………………/lib/libhdf5_cpp.so.7 (0x00007f618e658000)
        libhdf5_hl.so.7 => /…………lib/libhdf5_hl.so.7 (0x00007f618e42b000)
        libhdf5.so.7 => /…………/lib/libhdf5.so.7 (0x00007f618df68000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003f47a00000)
        libc.so.6 => /lib64/libc.so.6 (0x0000003daf000000)
        libsz.so.2 => /…………szip/lib/libsz.so.2 (0x00007f618dd54000)
        libz.so.1 => /lib64/libz.so.1 (0x0000003dafc00000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003db2800000)
        /lib64/ld-linux-x86-64.so.2 (0x0000003dae800000)


使用-l:lib***.a，然后就好了：
make -f Makefile.static
gcc  -o cpinfo -L………………/lib  Time_use.o cpinfo.o  -lmfhdf -ldf -lsz -lm -l:libhdf5_cpp.a -l:libhdf5_hl.a -l:libhdf5.a -l:libz.a -lstdc++
aaaaaa@localhost:7:06:56:compress$ ldd cpinfo
        linux-vdso.so.1 =>  (0x00007fff215ff000)
        libm.so.6 => /lib64/libm.so.6 (0x0000003daf800000)
        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x0000003f47a00000)
        libc.so.6 => /lib64/libc.so.6 (0x0000003daf000000)
        /lib64/ld-linux-x86-64.so.2 (0x0000003dae800000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003db2800000)