无法在 ruby​​ 1.9.2 上构建 iconv gem

Question

由于奇怪的构建错误，我无法安装“iconv”gem。
我已经从源代码构建了“libiconv”，并将 .h 和 .dylib 链接到了 rvm 的 include 和 lib 目录中。 当我运行

gem install iconv

Gem 时输出奇怪的构建错误：

构建本机扩展。这可能需要一段时间...

ERROR:  Error installing iconv:
    ERROR: Failed to build gem native extension.

/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/bin/ruby extconf.rb
checking for iconv() in iconv.h... no
checking for iconv() in -liconv... yes
checking for const of iconv() 2nd argument... no
creating Makefile

make
gcc -I. -I/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1/x86_64-darwin10.4.0 -I/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1/ruby/backward -I/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe  -o iconv.o -c iconv.c
In file included from iconv.c:21:
/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1/ruby/backward/st.h:2:2: warning: #warning use "ruby/st.h" instead of bare "st.h"
iconv.c:22:20: error: intern.h: No such file or directory
iconv.c: In function ‘map_charset’:
iconv.c:139: error: ‘struct RHash’ has no member named ‘tbl’
iconv.c:139: error: ‘struct RHash’ has no member named ‘tbl’
iconv.c:142: error: ‘struct RHash’ has no member named ‘tbl’
iconv.c: In function ‘iconv_create’:
iconv.c:187: error: ‘struct RString’ has no member named ‘len’
iconv.c:188: error: ‘struct RString’ has no member named ‘len’
iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:192: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:193: error: ‘struct RString’ has no member named ‘len’
iconv.c: In function ‘iconv_fail’:
iconv.c:328: error: ‘struct RString’ has no member named ‘len’
iconv.c: In function ‘iconv_fail_retry’:
iconv.c:352: error: ‘ruby_errinfo’ undeclared (first use in this function)
iconv.c:352: error: (Each undeclared identifier is reported only once
iconv.c:352: error: for each function it appears in.)
iconv.c: In function ‘rb_str_derive’:
iconv.c:371: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:371: error: ‘struct RString’ has no member named ‘len’
iconv.c:373: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:373: error: ‘struct RString’ has no member named ‘len’
iconv.c:374: error: ‘struct RString’ has no member named ‘ptr’
iconv.c: In function ‘iconv_convert’:
iconv.c:418: error: ‘struct RArray’ has no member named ‘len’
iconv.c:418: error: ‘struct RArray’ has no member named ‘ptr’
iconv.c:436: error: ‘struct RString’ has no member named ‘len’
iconv.c:437: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:455: warning: comparison of unsigned expression >= 0 is always true
iconv.c:458: warning: comparison between signed and unsigned
iconv.c:459: warning: comparison between signed and unsigned
iconv.c:491: warning: implicit conversion shortens 64-bit value into a 32-bit value
iconv.c:494: warning: implicit conversion shortens 64-bit value into a 32-bit value
iconv.c:497: error: ‘struct RArray’ has no member named ‘len’
iconv.c:498: error: ‘struct RArray’ has no member named ‘ptr’
iconv.c:499: error: ‘struct RArray’ has no member named ‘ptr’
iconv.c:501: error: ‘struct RString’ has no member named ‘len’
iconv.c:502: error: ‘struct RString’ has no member named ‘ptr’
iconv.c:514: warning: implicit conversion shortens 64-bit value into a 32-bit value
iconv.c: In function ‘iconv_s_convert’:
iconv.c:615: error: ‘struct RString’ has no member named ‘len’
make: *** [iconv.o] Error 1


Gem files will remain installed in /Users/myusername/.rvm/gems/ruby-1.9.2-rc2/gems/iconv-0.1 for inspection.
Results logged to /Users/myusername/.rvm/gems/ruby-1.9.2-rc2/gems/iconv-0.1/ext/iconv/gem_make.out

我如何正确安装和构建它。

谢谢

Answer 1

对于它的价值 - 我能够使用 RVM 构建 1.9.2 p136 并链接到我用 Homebrew 安装的 libiconv。这让我可以毫无问题地使用 JSON gem。我在这里写了一篇关于它的快速博客文章： http://www.v25media.com/blog/read /forcing_ruby_1_9_2_via_rvm_to_use_iconv 但其要点是：

$ brew install libiconv
$ rvm remove 1.9.2
$ rvm install 1.9.2 --with-iconv-dir=/usr/local/Cellar/libiconv/1.13.1

Answer 2

就我而言，我只是为 mechanize 安装 iconv，这样我就可以运行

我已经安装了 libiconv 的脚本 w/brew

gem install iconv -- --with-iconv-dir=/usr/local/Cellar/libiconv/1.13 .1

Herp derp

Answer 3

你为什么/如何构建 iconv ？更重要的是，你把它安装在哪里？因为我认为 gem 可以找到系统 libiconv 但无法找到标头，因为它们不在正常的搜索路径中。

一些建议：

最简单的方法可能是使用 MacPorts 并安装 iconv：sudo port install或者

，如果您想要/需要安装自己的版本，请确保将其安装在 /usr/local 子树中（它适用于管理员编译的软件，这正是您所需要的）正在做）。因此，您最终应该得到 /usr/local/include/iconv.h 和 /usr/local/lib/libiconv.dylib。

Answer 4

我有完全相同的问题。我新安装的 OS X 10.6 没有 iconv，所以我从 下载了 iconv http://ftp.gnu.org/gnu/libiconv/ 并运行

./configure
make
sudo make install

安装得很好， iconv.h 和 libiconv.dylib 位于它们应该在的位置，但是 gem 安装 rvm gem install iconv< /code> 失败并出现相同的错误。

我没有足够的 C-fu 来进一步解释这个问题，但我猜这可能是某种版本不匹配的结果？也许 iconv gem 期望有一些旧版本的 libiconv ？在我用随机版本的 iconv 来修改我的系统之前，我希望得到一些确认。

Answer 5

我想我已经找到原因了！
看起来 Iconv gem 尚未兼容 1.9.x，因此无法构建。

Answer 6

在 Lion 下，这两行代码有效：

brew 安装 libiconv

brew 链接 libiconv

Answer 7

@DarkDust 和 @Vee 的建议组合对我来说是这样的：

sudo port install libiconv
gem install iconv -- --with-iconv-dir=/opt/local

您可以运行

port contents libiconv

到 libiconv 现在安装在 /opt/local/include/ 和 下>/opt/local/include/lib.我还应该提到我正在使用 ruby​​ 1.9.3p286。

Answer 8

尝试安装 iconv rvm 包，然后重新安装 ruby​​ 1.9.2：

$ rvm pkg install iconv
$ rvm reinstall 1.9.2 --with-iconv-dir=$rvm_path/usr