I am learning how to load C code into R-1.8.0 on Windows 98. To this end I wrote a small c program, downloaded the tools, perl, and mingw on the "building R for windows" page, and proceeded to create libR.a & libRblas.a as explained in the readme.packages. I started with a simple c program called mysum.c that can be found on:
http://www.okada.jp.org/RWiki/?R%A4%AB%A4%E9%C2%BE%B8%C0%B8%EC%CD%F8%CD%D1 If the c program is called mysum.c, I type, after cd'ing into R_home\bin on the MS-DOS shell: > rcmd shlib [-o mysum.dll] mysum.c and the output reads: >MkRules:93: warning: overriding commands for target `.c.d' >C:/R/RW1080/src/gnuwin32/MkRules:93: warning: ignoring old commands for target ` >.c.d' >MkRules:97: warning: overriding commands for target `.cc.d' >C:/R/RW1080/src/gnuwin32/MkRules:97: warning: ignoring old commands for target ` >.cc.d' >MkRules:101: warning: overriding commands for target `.cpp.d' >C:/R/RW1080/src/gnuwin32/MkRules:101: warning: ignoring old commands for target >`.cpp.d' >MkRules:105: warning: overriding commands for target `.C.d' >C:/R/RW1080/src/gnuwin32/MkRules:105: warning: ignoring old commands for target >`.C.d' >MkRules:109: warning: overriding commands for target `.c.o' >C:/R/RW1080/src/gnuwin32/MkRules:109: warning: ignoring old commands for target >`.c.o' >MkRules:112: warning: overriding commands for target `.f.o' >C:/R/RW1080/src/gnuwin32/MkRules:112: warning: ignoring old commands for target >`.f.o' >MkRules:115: warning: overriding commands for target `.cc.o' >C:/R/RW1080/src/gnuwin32/MkRules:115: warning: ignoring old commands for target >`.cc.o' >MkRules:118: warning: overriding commands for target `.cpp.o' >C:/R/RW1080/src/gnuwin32/MkRules:118: warning: ignoring old commands for target >`.cpp.o' >MkRules:121: warning: overriding commands for target `.C.o' >C:/R/RW1080/src/gnuwin32/MkRules:121: warning: ignoring old commands for target >`.C.o' But nevertheless creates the dll file mysum.dll. I go to Rgui. At the prompt I type: > dyn.load("R_home\\bin\\mysum.dll") # and I tried 'dyn.load("R_home\\bin\\mysum")' which gives the response: Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library "C:/R/rw1080/bin/mysum.dll": LoadLibrary failure: The operation completed successfully. and of course, > is.loaded("mysum") # or is.loaded("mysum.dll") [1] FALSE Below is how I set up the path in the autoexec.bat: PATH = c:\cygwin; C:\MinGW\mingw32\bin; C:\Perl\bin\; C:\WINDOWS; C:\Windows\Command cygwin is where the tools are, and perl, minGW are from the "building R from windows" page. I tried this with the same path as above, except with "C:\MinGW\mingw32\bin" replaced with "C:\MinGW\bin" but only to get the same results. I am using Dev-C++ Version 4 to compile my C source code. If I need to edit MkRules, what precisely do I need to change and how should I change it? Do I need a different compiler (lcc?) ? What examply am I not doing right? Thanks in advance for your time, Kenichi Okamoto --------------------------------- Do You Yahoo!? Yahoo! BB is Broadband by Yahoo! http://bb.yahoo.co.jp/ [[alternative HTML version deleted]] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
