mac 由于libiconv导致编译PHP7 ld: symbol(s) not found for architecture x86_64错误
从源码手动编译 PHP 时出现如下错误：
Undefined symbols for architecture x86_64:
"_libiconv", referenced from:
_php_iconv_string in iconv.o
__php_iconv_strlen in iconv.o
__php_iconv_substr in iconv.o
__php_iconv_strpos in iconv.o
__php_iconv_mime_encode in iconv.o
__php_iconv_appendl in iconv.o
_php_iconv_stream_filter_append_bucket in iconv.o
...
"_libiconv_close", referenced from:
_php_iconv_string in iconv.o
__php_iconv_strlen in iconv.o
__php_iconv_substr in iconv.o
__php_iconv_strpos in iconv.o
__php_iconv_mime_encode in iconv.o
__php_iconv_mime_decode in iconv.o
_php_iconv_stream_filter_dtor in iconv.o
...
"_libiconv_open", referenced from:
_php_iconv_string in iconv.o
__php_iconv_strlen in iconv.o
__php_iconv_substr in iconv.o
__php_iconv_strpos in iconv.o
__php_iconv_mime_encode in iconv.o
__php_iconv_mime_decode in iconv.o
_php_iconv_stream_filter_ctor in iconv.o
...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [sapi/cli/php] Error 1
这个是因为我在编译的时候设置–with-iconv的路径，猜测应该是iconv的问题。
参照文章 compile php with openssl on mac osx error找到了一些灵感
MakeFile 里面找到类似下面这一行：
EXTRA_LIBS = -lresolv -liconv -liconv -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm删除所有 -liconv 在后面填写 libiconv.dylib和libcharset.dylib的路径
如果你是用homebrew安卓的libiconv那么路径就是 /usr/local/opt/libiconv/lib
附上我修改后的 MakeFile EXTRA_LIBS 那一行：
EXTRA_LIBS = -lresolv -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm -lxml2 -lz -licucore -lm /usr/local/opt/libiconv/lib/libiconv.dylib /usr/local/opt/libiconv/lib/libcharset.dylib然后重新运行make命令
