./configure --prefix=/usr/local/php52

make时提示：

.....................................................

ext/iconv/.libs/iconv.o(.text+0x1738): In function `zif_iconv_mime_encode':

/usr/src/php-5.2.0/ext/iconv/iconv.c:1017: undefined reference to `libiconv_open'

ext/iconv/.libs/iconv.o(.text+0x1756):/usr/src/php-5.2.0/ext/iconv/iconv.c:1031: undefined reference to `libiconv_open'

ext/iconv/.libs/iconv.o(.text+0x1993):/usr/src/php-5.2.0/ext/iconv/iconv.c:1290: undefined reference to `libiconv_close'

ext/iconv/.libs/iconv.o(.text+0x19ad):/usr/src/php-5.2.0/ext/iconv/iconv.c:1293: undefined reference to `libiconv_close'

ext/iconv/.libs/iconv.o(.text+0x1b01):/usr/src/php-5.2.0/ext/iconv/iconv.c:1102: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x1b33):/usr/src/php-5.2.0/ext/iconv/iconv.c:1134: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x1b5e):/usr/src/php-5.2.0/ext/iconv/iconv.c:1150: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x1e10):/usr/src/php-5.2.0/ext/iconv/iconv.c:1202: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x1e3c):/usr/src/php-5.2.0/ext/iconv/iconv.c:1233: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x207f):/usr/src/php-5.2.0/ext/iconv/iconv.c:1277: more undefined references to `libiconv' follow

ext/iconv/.libs/iconv.o(.text+0x2c08): In function `php_iconv_stream_filter_dtor':

/usr/src/php-5.2.0/ext/iconv/iconv.c:2393: undefined reference to `libiconv_close'

ext/iconv/.libs/iconv.o(.text+0x2cf2): In function `php_iconv_stream_filter_append_bucket':

/usr/src/php-5.2.0/ext/iconv/iconv.c:2543: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x2d34):/usr/src/php-5.2.0/ext/iconv/iconv.c:2543: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x2de7):/usr/src/php-5.2.0/ext/iconv/iconv.c:2465: undefined reference to `libiconv'

ext/iconv/.libs/iconv.o(.text+0x30e2): In function `php_iconv_stream_filter_factory_create':

/usr/src/php-5.2.0/ext/iconv/iconv.c:2419: undefined reference to `libiconv_open'

collect2: ld returned 1 exit status

make: *** [sapi/cli/php] Error 1

解决方法：

#wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.13.1.tar.gz#tar -zxvf libiconv-1.13.1.tar.gz#cd libiconv-1.13.1# ./configure --prefix=/usr/local/libiconv# make# make install

方法一：法为去除iconv模块也能正常编译php，如下：

編輯 Makefile 大約 77 行左右的地方:

EXTRA_LIBS = ..... -lcrypt

在最後加上 -liconv，例如:

EXTRA_LIBS = ..... -lcrypt -liconv

再检查php，指定 iconv的位置  --with-iconv=/usr/local/libiconv#./configure --prefix=/usr/local/php52 --with-iconv=/usr/local/libiconv#make#make install

再运行make就可以了。

最后一种方法：

#make ZEND_EXTRA_LIBS='-liconv'

#make install