Cannot compile from source with Rcpp on Windows 7
<p>I am running a new installation of R 3.3 on a Windows 7 virtual machine, and trying to install my own R package that uses Rcpp. The package is available on <a href="https://github.com/pbsag/tcadr" rel="nofollow noreferrer">GitHub</a>. I have installed Rtools and both <code>Rcpp</code> and <code>devtools</code></p>

<p>Using <code>devtools::install_github("pbsag/tcadr")</code>:</p>

<pre><code>&gt; devtools::install_github("pbsag/tcadr")
Downloading GitHub repo pbsag/tcadr@master
from URL https://api.github.com/repos/pbsag/tcadr/zipball/master
Installing tcadr
"C:/PROGRA~1/R/R-33~1.0/bin/x64/R" --no-site-file --no-environ --no-save  \
  --no-restore --quiet CMD INSTALL  \
  "C:/Users/Greg/AppData/Local/Temp/Rtmpwvw2qc/devtools1814572d2483/pbsag-tcadr-8ae1a82"  \
  --library="\\Mac/Home/Documents/R/win-library/3.3" --install-tests 

* installing *source* package 'tcadr' ...
** libs
c:/Rtools/mingw_64/bin/g++  -I"C:/PROGRA~1/R/R-33~1.0/include" -DNDEBUG    -I"\\Mac/Home/Documents/R/win-library/3.3/Rcpp/include" -I"d:/Compiler/gcc-4.9.3/local330/include"     -O2 -Wall  -mtune=core2 -c RcppExports.cpp -o RcppExports.o
RcppExports.cpp:4:18: fatal error: Rcpp.h: No such file or directory
 #include &lt;Rcpp.h&gt;
                  ^
compilation terminated.
make: *** [RcppExports.o] Error 1
Warning: running command 'make -f "C:/PROGRA~1/R/R-33~1.0/etc/x64/Makeconf" -f "C:/PROGRA~1/R/R-33~1.0/share/make/winshlib.mk" SHLIB_LDFLAGS='$(SHLIB_CXXLDFLAGS)' SHLIB_LD='$(SHLIB_CXXLD)' SHLIB="tcadr.dll" WIN=64 TCLBIN=64 OBJECTS="RcppExports.o get_df_from_binary.o write_df_to_binary.o"' had status 2
ERROR: compilation failed for package 'tcadr'
* removing '\\Mac/Home/Documents/R/win-library/3.3/tcadr'
Error: Command failed (1)
</code></pre>

<p>Cloning the repo and building within Rstudio:</p>

<pre><code>==&gt; Rcmd.exe INSTALL --no-multiarch --with-keep.source tcadr

* installing to library '\\Mac/Home/Documents/R/win-library/3.3'
* installing *source* package 'tcadr' ...
** libs
c:/Rtools/mingw_64/bin/g++ -shared -s -static-libgcc -o tcadr.dll tmp.def RcppExports.o get_df_from_binary.o write_df_to_binary.o -Ld:/Compiler/gcc-4.9.3/local330/lib/x64 -Ld:/Compiler/gcc-4.9.3/local330/lib -LC:/PROGRA~1/R/R-33~1.0/bin/x64 -lR
C:\Rtools\mingw_64\bin\nm.exe: RcppExports.o: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: get_df_from_binary.o: File format not recognized
C:\Rtools\mingw_64\bin\nm.exe: write_df_to_binary.o: File format not recognized
RcppExports.o: file not recognized: File format not recognized
collect2.exe: error: ld returned 1 exit status
no DLL was created
ERROR: compilation failed for package 'tcadr'
* removing '\\Mac/Home/Documents/R/win-library/3.3/tcadr'

Exited with status 1.
</code></pre>

<p><a href="https://stackoverflow.com/questions/37189183/o-file-format-not-recognized-on-windows-7">This question</a> has the same error, but that accepted answer does not apply because I don't have any compiled object files in my git repository.</p>

<p>Note that I have no problems building this package in 3.2 on Windows 7 or on Mac.</p>

<hr>

<h3>Session Info</h3>

<pre><code>R version 3.3.0 (2016-05-03)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United States.1252   
[3] LC_MONETARY=English_United States.1252 LC_NUMERIC=C                          
[5] LC_TIME=English_United States.1252    

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

other attached packages:
[1] devtools_1.11.1

loaded via a namespace (and not attached):
[1] httr_1.1.0     R6_2.1.2       tools_3.3.0    withr_1.0.1    rstudioapi_0.5
[6] curl_0.9.7     memoise_1.0.0  git2r_0.15.0   digest_0.6.9 
</code></pre>