然而,(这是一个更新),似乎readline本身没有正确安装！

这是我迄今为止所尝试的：

重新安装xcode(4.1)(我也先删除了Developer文件夹)

按照http://trac.macports.org/wiki/Migration清理并重新安装所有端口

按照：https://rvm.beginrescueend.com/packages/readline/重新安装readline

使用特定的readline版本：

rvm install 1.9.2 --with-readline-dir=$rvm_path/usr

我也完全重新安装了rvm.还没去这是我目前看到的错误：

ERROR: Error running 'make ',please read /Users/tristankromer/.rvm/log/ruby-1.9.2-p290/make.log
ERROR: There has been an error while running make. Halting the installation.

…和随附的日志文件.

make[1]: Entering directory `/Users/tristankromer/.rvm/src/ruby-1.9.2-p290/ext/readline'
/usr/bin/gcc-4.2 -I. -I../../.ext/include/x86_64-darwin11.0.0 -I../.././include -I../.././ext/readline -DRUBY_EXTCONF_H=\"extconf.h\" -I/Users/tristankromer/.rvm/usr/include -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 readline.o -c readline.c
readline.c: In function ‘username_completion_proc_call’:
readline.c:1386: error: ‘username_completion_function’ undeclared (first use in this function)
readline.c:1386: error: (Each undeclared identifier is reported only once
readline.c:1386: error: for each function it appears in.)
make[1]: *** [readline.o] Error 1
make[1]: Leaving directory `/Users/tristankromer/.rvm/src/ruby-1.9.2-p290/ext/readline'
make: *** [mkmain.sh] Error 1

所以经过很多调查,我试图手动安装readline：(from：RVM Does Not Install Ruby 1.9.2 on Snow Leopard: ‘Error running ‘make ‘)

curl -O ftp://ftp.gnu.org/gnu/readline/readline-6.1.tar.gz
tar xzvf readline-6.1.tar.gz
cd readline-6.1
./configure --prefix=/usr/local
make
sudo make install
cd ..

当我收到错误编译readline时,我得到了

gcc-4.2 -dynamic -arch_only `/usr/bin/arch` -install_name /usr/local/lib/libreadline.6.1.dylib -current_version 6.1 -compatibility_version 6 -v -o libreadline.6.1.dylib readline.so vi_mode.so funmap.so keymaps.so parens.so search.so rltty.so complete.so bind.so isearch.so display.so signals.so util.so kill.so undo.so macro.so input.so callback.so terminal.so text.so nls.so misc.so xmalloc.so history.so histexpand.so histfile.so histsearch.so shell.so mbutil.so tilde.so compat.so -lncurses
Using built-in specs.
Target: i686-apple-darwin11
Configured with: /private/var/tmp/gcc/gcc-5666.3~278/src/configure --disable-checking --enable-werror --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++ --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin11 --program-prefix=i686-apple-darwin11- --host=x86_64-apple-darwin11 --target=i686-apple-darwin11 --with-gxx-include-dir=/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
i686-apple-darwin11-gcc-4.2.1: -compatibility_version only allowed with -dynamiclib
make[1]: *** [libreadline.6.1.dylib] Error 1
make[1]: Leaving directory `/Users/tristankromer/src/readline-6.1/shlib'
make: [shared] Error 2 (ignored)

所以似乎甚至安装readline我有一个问题,由于readline.

然后,我通过添加到.bash_profile中,从Andy(下面)中的指导：

export ARCHFLAGS="-arch x86_64"

跑了：

brew install readline
brew link readline
brew install libxml2
brew link libxml2
rvm install 1.9.2 -C --with-readline-dir=/usr/local/Cellar/readline/6.2.1/ --with-libxml2-dir=/usr/local/Cellar/xml2/2.7.8

现在我似乎有一个不同的错误：

make[1]: Entering directory `/Users/tristankromer/.rvm/src/ruby-1.9.2-p290/ext/tk'
/usr/bin/gcc-4.2 -dynamic -bundle -o ../../.ext/x86_64-darwin11.0.0/tcltklib.bundle stubs.o tcltklib.o -L. -L../.. -L/System/Library/Frameworks/Tcl.framework -L/System/Library/Frameworks/Tk.framework -L. -L/usr/local/lib   -lpthread -framework CoreFoundation  -F/System/Library/Frameworks -framework Tcl    -lpthread -framework CoreFoundation -framework Cocoa -framework Carbon -framework IOKit   -lpthread -framework CoreFoundation  -F/System/Library/Frameworks -framework Tk -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace  -lruby.1.9.1 -lm -ldl  -lpthread -ldl -lobjc
ld: in /usr/local/lib/libiconv.2.dylib,missing required architecture x86_64 in file for architecture x86_64
collect2: ld returned 1 exit status
make[1]: *** [../../.ext/x86_64-darwin11.0.0/tcltklib.bundle] Error 1
make[1]: Leaving directory `/Users/tristankromer/.rvm/src/ruby-1.9.2-p290/ext/tk'
make: *** [mkmain.sh] Error 1