README.txt for the standalone version of earth
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. This package contains the files to build a standalone 
  version of earth (it uses the R DLLs and they are included
  in this package).

. To build under Visual C 6.0:

    cl -nologo -DSTANDALONE -DMAIN -TP -Zi -W3 -MLd -I. -Fo"Debug/" -c earth.c
    link -nologo -debug:full -out:earthmain-vc6.exe Debug\earth.obj Rdll.lib Rblas.lib
    earthmain-vc6.exe

  That builds a Debug version.  For a Release version, change
  the flags in cl and link above as appropriate.  

. To build and under mingw gcc (tested on gcc 4.2.1-sjlj mingw32-2)

    gcc -DSTANDALONE -DMAIN -Wall -pedantic -Wextra -O3 -std=gnu99 -I. earth.c Rdll.lib Rblas.lib -o earthmain-gcc.exe
    earthmain-gcc.exe

. To modify earth for your environment, look at the 
  main() routine in earth.c

. Most of these files in this package were copied from the 
  standard R directories.  Have a look at get-files.bat
  in this directory for details.  Also check out the
  other batch files in this directory.

Have fun!

Steve Milborrow
Forden Wales Aug 2007