[Rd] Build error/zlib question

[James MacDonald]

Hi,

I am unable to build a package I maintain using a relatively current
build of R-2.4.0 alpha, whereas the package builds just fine on R-2.3.1.
Both versions of R were built from source. I'm hoping a guRu might be
able to give some help.

Some snippets from the build process:

R-2.3.1

  making DLL ...
gcc  -Ic:/R-2.3.1/src/extra/zlib -DHAVE_ZLIB -Ic:/R-2.3.1/include -Wall
-O2   -c read_cdffile.c -o read_cdffile.o
read_cdffile.c: In function `readQC':
read_cdffile.c:565: warning: unused variable `param_unit'
windres --include-dir c:/R-2.3.1/include  -i makecdfenv_res.rc -o
makecdfenv_res.o
gcc  -shared -s  -o makecdfenv.dll makecdfenv.def read_cdffile.o
makecdfenv_res.o  -Lc:/R-2.3.1/bin   -lR
  ... DLL made

R-2.4.0 beta

   making DLL ...
gcc  -Ic:/rw2040dev/src/extra/zlib -DHAVE_ZLIB -Ic:/rw2040dev/include 
-Wall -O2 -std=gnu99   -c read_cdffile.c -o read_cdffile.o
read_cdffile.c: In function `readQC':
read_cdffile.c:565: warning: unused variable `param_unit'
windres --include-dir c:/rw2040dev/include  -i makecdfenv_res.rc -o
makecdfenv_res.o
gcc  -shared -s  -o makecdfenv.dll makecdfenv.def read_cdffile.o
makecdfenv_res.o  -Lc:/rw2040dev/bin   -lR
read_cdffile.o:read_cdffile.c:(.text+0x42): undefined reference to
`gzgets'
read_cdffile.o:read_cdffile.c:(.text+0xf3): undefined reference to
`gzopen'
read_cdffile.o:read_cdffile.c:(.text+0x10f): undefined reference to
`gzgets'
read_cdffile.o:read_cdffile.c:(.text+0x140): undefined reference to
`gzrewind'
read_cdffile.o:read_cdffile.c:(.text+0x177): undefined reference to
`gzclose'
collect2: ld returned 1 exit status
make[3]: *** [makecdfenv.dll] Error 1
make[2]: *** [srcDynlib] Error 2
make[1]: *** [all] Error 2
make: *** [pkg-makecdfenv] Error 2

> version
               _                                        
platform       i386-pc-mingw32                          
arch           i386                                     
os             mingw32                                  
system         i386, mingw32                            
status         alpha                                    
major          2                                        
minor          4.0                                      
year           2006                                     
month          09                                       
day            10                                       
svn rev        39242                                    
language       R                                        
version.string R version 2.4.0 alpha (2006-09-10 r39242)

TIA,

Jim

James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
1500 E. Medical Center Drive
7410 CCGC
Ann Arbor MI 48109
734-647-5623


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