我从源代码构建pcre并将其安装到我的主目录，现在我在$ HOME/build/lib目录下，发现很多软链接，只是对此感到困惑，为什么pcre会生成这么多软链接？
ls -l
total 792
-rw-r--r-- 1 hugemeow hugemeow 380308 Oct 2 19:21 libpcre.a
-rw-r--r-- 1 hugemeow hugemeow 35998 Oct 2 19:21 libpcrecpp.a
-rwxr-xr-x 1 hugemeow hugemeow 1008 Oct 2 19:21 libpcrecpp.la
lrwxrwxrwx 1 hugemeow hugemeow 19 Oct 2 19:21 libpcrecpp.so -> libpcrecpp.so.0.0.0
lrwxrwxrwx 1 hugemeow hugemeow 19 Oct 2 19:21 libpcrecpp.so.0 -> libpcrecpp.so.0.0.0
-rwxr-xr-x 1 hugemeow hugemeow 41246 Oct 2 19:21 libpcrecpp.so.0.0.0
-rwxr-xr-x 1 hugemeow hugemeow 939 Oct 2 19:21 libpcre.la
-rw-r--r-- 1 hugemeow hugemeow 10860 Oct 2 19:21 libpcreposix.a
-rwxr-xr-x 1 hugemeow hugemeow 1022 Oct 2 19:21 libpcreposix.la
lrwxrwxrwx 1 hugemeow hugemeow 21 Oct 2 19:21 libpcreposix.so -> libpcreposix.so.0.0.2
lrwxrwxrwx 1 hugemeow hugemeow 21 Oct 2 19:21 libpcreposix.so.0 -> libpcreposix.so.0.0.2
-rwxr-xr-x 1 hugemeow hugemeow 13140 Oct 2 19:21 libpcreposix.so.0.0.2
lrwxrwxrwx 1 hugemeow hugemeow 16 Oct 2 19:21 libpcre.so -> libpcre.so.1.2.1
lrwxrwxrwx 1 hugemeow hugemeow 16 Oct 2 19:21 libpcre.so.1 -> libpcre.so.1.2.1
-rwxr-xr-x 1 hugemeow hugemeow 294214 Oct 2 19:21 libpcre.so.1.2.1
drwxrwxr-x 2 hugemeow hugemeow 4096 Oct 2 19:21 pkgconfig