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Creating a Windows import lib from R.dll (x64)?
3 messages · Dominick Samperi, Joe Conway
On 10/18/2010 10:00 PM, Dominick Samperi wrote:
The procedure for creating an import library (Rdll.lib) that is documented
in gnuwin32/README.packages works fine using the i386 architecture, but
it doesn't seem to work under x64.
Specifically, the procedure is:
pexports R.dll > R.exp
lib /def:R.exp /out:Rdll.lib /machine:X86 R.dll
There are two issues under x64:
1. Older version of pexports crash when applied to an x64 R.dll.
The work-around is to use one of the newer versions that have
been fixed (pexports-9.44, say).
2. When lib is applied to an x64 R.dll it complains as follows:
R.dll : fatal error LNK1107: invalid or corrupt file: cannot read at 0x318
This happens even when the /def:R.exp parameter is left out, for
example, with lib /out:Rdll.lib R.dll.
Any tips would be much appreciated.
I successfully did the following recently in order to build 64 bit PL/R on Windows 7: ---------------- dumpbin /exports R.dll > R.dump.csv Note that I used the csv extension so OpenOffice would import the file into a spreadsheet conveniently. Edit R.dump.csv to produce a one column file of symbols called R.def. Add the following two lines to the top of the file: LIBRARY R EXPORTS Then run the following using R.def lib /def:R.def /out:R.lib ---------------- HTH, Joe
Joe Conway credativ LLC: http://www.credativ.us Linux, PostgreSQL, and general Open Source Training, Service, Consulting, & 24x7 Support -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 899 bytes Desc: OpenPGP digital signature URL: <https://stat.ethz.ch/pipermail/r-devel/attachments/20101018/e04a59e7/attachment.bin>
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