Mac 10.7 - 安裝 xcode 後無法使用 make 實用程式

Question

我正在嘗試安裝從 CPAN 手動下載的 perl 模組，但遇到了困難。

$perl Makefile.PL 
Welcome to JSON (v.2.53)
=============================
If you install JSON::XS v.2.27, it makes JSON faster.

 ************************** CAUTION **************************
 * This is 'JSON version 2' and there are many differences   *
 * to version 1.xx                                           *
 * Please check your applications useing old version.        *
 *   See to 'INCOMPATIBLE CHANGES TO OLD VERSION' and 'TIPS' *
 *************************************************************


Writing Makefile for JSON
$make
make: *** No rule to make target `/System/Library/Perl/5.12/darwin-thread-multi-2level/CORE/config.h', needed by `Makefile'.  Stop.

有人遇到同樣的問題，但我無法讓他的解決方案為我工作。

https://stackoverflow.com/questions/6793499/perl-config-h-needed-by-makefile-problem-after-osx-lion-upgrade

我安裝了 Xcode - 和命令列工具包。輸入“which make”輸出：

$which make
/Applications/Xcode.app/Contents/Developer/usr/bin/make

哪個 perl 輸出：

$which perl
/usr/bin/perl

我做錯了什麼？這是 Perl 的問題嗎？