dynamic loading - w32

From: "Edward Susko" <susko at mscs.dal.ca>
To: <r-help at stat.math.ethz.ch>
Subject: [R] dynamic loading - w32
Date: Tue, 26 Jan 1999 11:22:26 -0400
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
Importance: Normal
X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3

Has something changed in dyn.load between rw0630 and rw0632

The compiler used to dynamically load a routine to compute the sum of
a vector in the folllowing example is mingw32-egcs-1.1 (Win98):

[C:/usr/home/slib/test] gcc -c test.c
[C:/usr/home/slib/test] dllwrap -o test.dll --def test.def test.o -lm

Using rw0630:

dyn.load("test.dll")
a <- c(1, 3.5, 5, 6)
f <- 0
n <- 4
.C("mysum", as.integer(n), as.double(a), as.double(f))[[3]]

[1] 15.5

Using rw0632:

dyn.load("test.dll")

Error in dyn.load(x) : unable to load shared library
"C:\usr\home\slib\test\test.dll"