目前，我正在尝试在某些Linux测试服务器上安装PHP 5.3.0。由于我们急切地等待ext/intl，我们想检查一下它提供的功能。
我使用以下参数成功运行configure

./configure
    --with-apxs2=/usr/local/apache2/bin/apxs
    --prefix=/usr/local/php
    --with-zlib-dir=/usr/local/zlib
    --with-imap=/.../imap-2006k
    --with-imap-ssl
    --with-openssl=shared
    --with-iconv=shared
    --with-zlib=shared
    --with-curl=shared
    --with-curlwrappers
    --enable-exif
    --with-ldap=shared,/usr/local/openldap
    --with-ldap-sasl
    --enable-mbstring=shared
    --with-mcrypt
    --enable-soap=shared
    --enable-sockets
    --enable-zip=shared
    --enable-pdo=shared
    --with-pdo-sqlite=shared
    --with-sqlite=shared
    --with-mysql=shared,/usr/local/mysql
    --with-pdo-mysql=shared,/usr/local/mysql
    --with-mysqli=shared,/usr/local/mysql/bin/mysql_config
    --with-mhash=shared,/usr/local/mhash
    --with-libxml-dir=/usr/local/libxml2
    --with-xsl=shared,/usr/local/libxslt
    --enable-xmlreader=shared
    --enable-xmlwriter=shared
    --with-gmp=shared
    --with-icu-dir=/usr/local/icu
    --enable-intl

ext/intl/grapheme/.libs/grapheme_util.o(.text+0xbab):/.../php-5.3.0/ext/intl/grapheme/grapheme_util.c:208: undefined reference to `ubrk_close_4_2'

export LD_LIBRARY_PATH=/usr/local/icu/lib

lrwxrwxrwx  1 root root       20 Jul  1 09:56 libicudata.so -> libicudata.so.42.0.1
lrwxrwxrwx  1 root root       20 Jul  1 09:56 libicudata.so.42 -> libicudata.so.42.0.1
-rw-r--r--  1 root root 16015140 Jul  1 09:56 libicudata.so.42.0.1
lrwxrwxrwx  1 root root       20 Jul  1 09:56 libicui18n.so -> libicui18n.so.42.0.1
lrwxrwxrwx  1 root root       20 Jul  1 09:56 libicui18n.so.42 -> libicui18n.so.42.0.1
-rwxr-xr-x  1 root root  2454770 Jul  1 09:56 libicui18n.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicuio.so -> libicuio.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicuio.so.42 -> libicuio.so.42.0.1
-rwxr-xr-x  1 root root    65299 Jul  1 09:56 libicuio.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicule.so -> libicule.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicule.so.42 -> libicule.so.42.0.1
-rwxr-xr-x  1 root root   356125 Jul  1 09:56 libicule.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libiculx.so -> libiculx.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libiculx.so.42 -> libiculx.so.42.0.1
-rwxr-xr-x  1 root root    75110 Jul  1 09:56 libiculx.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicutu.so -> libicutu.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicutu.so.42 -> libicutu.so.42.0.1
-rwxr-xr-x  1 root root   159330 Jul  1 09:56 libicutu.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicuuc.so -> libicuuc.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicuuc.so.42 -> libicuuc.so.42.0.1
-rwxr-xr-x  1 root root  1660769 Jul  1 09:56 libicuuc.so.42.0.1

[All tests passed successfully...]
Elapsed Time: 00:00:25.000
make[2]: Leaving directory `/.../icu-4.2/source/test/cintltst'
---------------
ALL TESTS SUMMARY:
All tests OK:  testdata intltest iotest cintltst
make[1]: Leaving directory `/.../icu-4.2/source/test'
make[1]: Entering directory `/.../icu-4.2/source'
verifying that icu-config --selfcheck can operate
verifying that make -f Makefile.inc selfcheck can operate
PASS: config selfcheck OK
make[1]: Leaving directory `/.../icu-4.2/source'

/usr/local/icu/bin/icu-config --version
4.2.0.1

/usr/local/icu/bin/icu-config --prefix
/usr/local/icu

/usr/local/icu/bin/icu-config --cppflags-searchpath
-I/usr/local/icu/include

/usr/local/icu/bin/icu-config --ldflags --ldflags-icuio
-lpthread -lm   -L/usr/local/icu/lib -licui18n -licuuc -licudata  -lpthread -lm   -licuio

objdump -C /usr/local/icu/lib/libicuuc.so.42.0.1
// doesn't work because of unrecognized argument -C

objdump -t /usr/local/icu/lib/libicuuc.so.42.0.1 | grep ubrk_close
00000000000d2484 g     F .text  000000000000002d              ubrk_close_4_2

/usr/lib64/gcc-lib/x86_64-suse-linux/3.3.5/../../../../lib64/libicuuc.so

libicuuc.so.42

最佳答案

问题似乎是二进制文件链接到错误的(共享)库文件。
首先，对我认为问题的原因进行冗长而无聊的解释。请记住，我不是Linux专家。我真的希望您理解我的思路，以便您可以确定这是否可行和/或我错了。
第一个(原始)解决方案很容易逆转。运行另一个./configure，所有更改均为历史记录。我认为这很节省。

为什么首先要具有icu 4-2特定的依赖关系？让我们看一下php的intl扩展的源文件(ext/intl/grapheme/grapheme_string.c)

#include <unicode/ubrk.h>
...
PHP_FUNCTION(grapheme_substr)
{
   ...
   ubrk_close(bi);
   ...

ICU_CONFIG="$PHP_ICU_DIR/bin/icu-config"
ICU_INCS=`$ICU_CONFIG --cppflags-searchpath`
ICU_LIBS=`$ICU_CONFIG --ldflags --ldflags-icuio`

PHP_FUNCTION(grapheme_substr)
{
   ...
   ubrk_close_4_2(bi);
   ...

-lpthread -lm -L/usr/local/icu/lib -licui18n -licuuc -licudata -lpthread -lm -licuio

lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicuuc.so -> libicuuc.so.42.0.1
lrwxrwxrwx  1 root root       18 Jul  1 09:56 libicuuc.so.42 -> libicuuc.so.42.0.1
-rwxr-xr-x  1 root root  1660769 Jul  1 09:56 libicuuc.so.42.0.1

关于php - 无法通过intl-support安装PHP 5.3.0，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/1078412/