在R中安装xml2时出现问题

Question

当我尝试在RStudio服务器上安装xml2时，出现以下错误：

xml2_url.cpp: In function ‘Rcpp::List url_parse(Rcpp::CharacterVector)’:
xml2_url.cpp:85: error: ‘struct _xmlURI’ has no member named ‘query_raw’
xml2_url.cpp:85: error: ‘struct _xmlURI’ has no member named ‘query_raw’
make: *** [xml2_url.o] Error 1
ERROR: compilation failed for package ‘xml2’

我的会话信息是

> sessionInfo()
R version 3.1.1 (2014-07-10)
Platform: x86_64-unknown-linux-gnu (64-bit)

locale: 
[1] LC_CTYPE=en_US.UTF-8   LC_NUMERIC=C  LC_TIME=en_US.UTF-8   LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8   
[6] LC_MESSAGES=en_US.UTF-8    LC_PAPER=en_US.UTF-8       LC_NAME=C                  LC_ADDRESS=C               LC_TELEPHONE=C            
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C       

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
[1] devtools_1.8.0  digest_0.6.8    git2r_0.10.1    grid_3.1.1      httr_0.6.1      memoise_0.2.1   RCurl_1.95-4.3  rversions_1.0.0 stringr_0.6.2  
[10] tools_3.1.1     XML_3.98-1.1   

xml2 R-package完美地安装在我的macbook air ...