problem building a package with C code (PR#13572)

Hi, my name is Paula. Im trying to learn how to build an R package in
Windows XP using a simple example which includes a C source code. The
foo.c file is located in mypkg/src/foo.c.

I used the command  Rcmd build --force --binary [pkgpath]. The problem is
when I install the zip file in R the function foo doesn?t exist.

The result a recieved during the building process is copied below.

I really appreciate some help....I very new on it and I have spent a lot
of time trying to solve the problem alone without success.

Thanks a lot

Paula Fari?a


C:\>cd C:\Archivos de programa\R\R-2.7.2\bin

C:\Archivos de programa\R\R-2.7.2\bin>Rcmd build --force --binary
D:\2009\c2r\my
pkg
* checking for file 'D:\2009\c2r\mypkg/DESCRIPTION' ... OK
* preparing 'D:\2009\c2r\mypkg':
* checking DESCRIPTION meta-information ... OK
* cleaning src
* removing junk files
* checking for LF line-endings in source and make files
    file 'mypkg/src/foo.c' had non-LF line endings
* checking for empty or unneeded directories
* building binary distribution
WARNING: some HTML links may not be found
installing R.css in C:/DOCUME~1/Lir/CONFIG~1/Temp/Rinst96073413

Using auto-selected zip options ''

---------- Making package mypkg ------------
  adding build stamp to DESCRIPTION
  making DLL ...
making foo.d from foo.c
gcc  -std=gnu99  -Ic:/ARCHIV~1/R/R-27~1.2/include     -O3 -Wall  -c foo.c
-o foo
.o
windres --preprocessor="gcc -E -xc -DRC_INVOKED" -I
c:/ARCHIV~1/R/R-27~1.2/inclu
de  -i mypkg_res.rc -o mypkg_res.o
gcc  -std=gnu99  -shared -s  -o mypkg.dll mypkg.def foo.o mypkg_res.o 
-Lc:/ARCH
IV~1/R/R-27~1.2/bin    -lR
  ... DLL made
  installing DLL
  installing R files
  installing data files
  installing man source files
  installing indices
  not zipping data
  installing help

 >>> Building/Updating help pages for package 'mypkg'

     Formats: text html latex example chm
  d                                 text    html    latex   example chm
  e                                 text    html    latex   example chm
  f                                 text    html    latex   example chm
  g                                 text    html    latex   example chm
  mypkg-package                     text    html    latex   example chm
Microsoft HTML Help Compiler 4.74.8702

Compiling c:\DOCUME~1\Lir\CONFIG~1\Temp\Rbuild96033789\mypkg\chm\mypkg.chm


Compile time: 0 minutes, 2 seconds
6       Topics
11      Local links
0       Internet links
1       Graphic


Created c:\DOCUME~1\Lir\CONFIG~1\Temp\Rbuild96033789\mypkg\chm\mypkg.chm,
18,792
 bytes
Compression increased file by 2,040 bytes.
  adding MD5 sums

packaged installation of package 'mypkg' as mypkg_1.0.zip
* DONE (mypkg)


C:\Archivos de programa\R\R-2.7.2\bin>