title: Error in busybox cross-compilation to arm
body: <p>I'm trying to compile busybox for arm on my x86_64 desktop, using buildroot 2012.11.<br>
  I think my buildroot build config was correct : </p>
  
  <p>The file is on pastebin for readability and spacing reasons : <a href="http://pastebin.com/tSZvcEqe" rel="nofollow">http://pastebin.com/tSZvcEqe</a></p>
  
  <p>Still, when i try to compile, i get this error (apparently something is wrong with the "rlimit-fsize" system variable.</p>
  
  <pre><code>  CC      loginutils/passwd.o
  loginutils/passwd.c: In function ‘passwd_main’:
  loginutils/passwd.c:104:16: error: storage size of ‘rlimit_fsize’ isn’t known
  loginutils/passwd.c:188:2: warning: implicit declaration of function ‘setrlimit‘ [-Wimplicit-function-declaration]
  loginutils/passwd.c:188:12: error: ‘RLIMIT_FSIZE’ undeclared (first use in this function)
  loginutils/passwd.c:188:12: note: each undeclared identifier is reported only once for each function it appears in
  loginutils/passwd.c:104:16: warning: unused variable ‘rlimit_fsize’ [-Wunused-variable]
  make[1]: *** [loginutils/passwd.o] Error 
  make: *** [loginutils] Error 2
  </code></pre>
  
  <p>Following is the busybox build config file :</p>
  
  <pre><code>#
  # Automatically generated make config: don't edit
  # Busybox version: 1.20.2
  # Mon Dec 10 21:45:20 2012
  #
  CONFIG_HAVE_DOT_CONFIG=y
  
  #
  # Busybox Settings
  #
  
  [...]
  
  
  #
  # Login/Password Management Utilities
  #
  CONFIG_ADD_SHELL=y
  CONFIG_REMOVE_SHELL=y
  CONFIG_FEATURE_SHADOWPASSWDS=y
  CONFIG_USE_BB_PWD_GRP=y
  CONFIG_USE_BB_SHADOW=y
  CONFIG_USE_BB_CRYPT=y
  CONFIG_USE_BB_CRYPT_SHA=y
  CONFIG_ADDUSER=y
  CONFIG_FEATURE_ADDUSER_LONG_OPTIONS=y
  # CONFIG_FEATURE_CHECK_NAMES is not set
  CONFIG_FIRST_SYSTEM_ID=100
  CONFIG_LAST_SYSTEM_ID=999
  CONFIG_ADDGROUP=y
  CONFIG_FEATURE_ADDGROUP_LONG_OPTIONS=y
  CONFIG_FEATURE_ADDUSER_TO_GROUP=y
  CONFIG_DELUSER=y
  CONFIG_DELGROUP=y
  CONFIG_FEATURE_DEL_USER_FROM_GROUP=y
  CONFIG_GETTY=y
  CONFIG_LOGIN=y
  # CONFIG_LOGIN_SESSION_AS_CHILD is not set
  # CONFIG_PAM is not set
  CONFIG_LOGIN_SCRIPTS=y
  CONFIG_FEATURE_NOLOGIN=y
  CONFIG_FEATURE_SECURETTY=y
  CONFIG_PASSWD=y
  # CONFIG_FEATURE_PASSWD_WEAK_CHECK is not set
  CONFIG_CRYPTPW=y
  CONFIG_CHPASSWD=y
  CONFIG_FEATURE_DEFAULT_PASSWD_ALGO="des"
  CONFIG_SU=y
  CONFIG_FEATURE_SU_SYSLOG=y
  CONFIG_FEATURE_SU_CHECKS_SHELLS=y
  CONFIG_SULOGIN=y
  CONFIG_VLOCK=y
  
  [...]
  </code></pre>
  
  <p>Other than that, the host system is an up-to-date archlinux x86_64 desktop 
      Linux samhildanach 3.6.9-1-ARCH #1 SMP PREEMPT Tue Dec 4 08:04:10 CET 2012 x86_64 GNU/Linux</p>
  
  <p>Thanks for any help.</p>