求帮忙分析编译动态库的问题？

[luxihua]

我平台上编译不了啊
cat hello.c
void hello()
{
}
g++ -shared hello.c -o libhello.so
/usr/lib64/gcc/x86_64-suse-linux/4.1.2/../../../../x86_64-suse-linux/bin/ld: /tmp/cca0uT7R.o: relocation R_X86
_64_32 against `__gxx_personality_v0' can not be used when making a shared object; recompile with -fPIC
/tmp/cca0uT7R.o: could not read symbols: Bad value
collect2: ld returned 1 exit status

[太乙]

g++ -shared hello.c -o libhello.so -fPIC

[justkk]

试试
g++ -fPIC -shared hello.c -o libhello.so

[太乙]

g++ -shared hello.c -o libhello.so -fPIC

[luxihua]

惭愧 刚加了-fpic，但是还是编译错了
这个区分大小写啊

[luxihua]

还是谢谢呵 ，
刚不知道出什么问题了，
现在编译过了。

[justkk]

-fPIC
           If supported for the target machine, emit position-independent code, suitable for dynamic linking and avoiding any limit on the size of the global off-
           set table.  This option makes a difference on the m68k, PowerPC and SPARC.

           Position-independent code requires special support, and therefore works only on certain machines.

[luxihua]

那为什么不加这个就不行呢

[luxihua]

是编译成位置无关的库吗，啥意思不太明白？