安装PostGIS 2.1.1 时遇到checking for library containing GDALAllRegister... no

在postgis中执行./configure时，遇到 checking for library containing GDALAllRegister... no 的错误信息

[root@test postgis-2.1.1]# ./configure
...
...
...
checking for library containing GDALAllRegister... no
configure: error: could not find GDAL

解决办法：将PostgreSQL的lib目录（/postgresql/lib）和GDAL的lib文件目录（/usr/local/lib）添加到系统的库文件目录中

echo '/postgresql/lib' >> /etc/ld.so.conf
echo '/usr/local/lib' >> /etc/ld.so.conf

ldconfig

检查是否生效
[root@test postgis-2.1.1]# ldconfig -p | grep libpq
    libpqwalreceiver.so (libc6,x86-64) => /postgresql/lib/libpqwalreceiver.so
    libpq.so.5 (libc6,x86-64) => /postgresql/lib/libpq.so.5
    libpq.so (libc6,x86-64) => /postgresql/lib/libpq.so

[root@test postgis-2.1.1]# ldconfig -p | grep gdal
    libgdal.so.1 (libc6,x86-64) => /usr/local/lib/libgdal.so.1
    libgdal.so (libc6,x86-64) => /usr/local/lib/libgdal.so

再执行./configure就正常了。