[Bioc-devel] ChemmineOB devl failing on windows x86_64

Kevin Horan khor@n @end|ng |rom c@@ucr@edu
Wed Oct 21 16:26:13 CEST 2026


I think OpenBabel needs to be installed on the windows x86_64 build 
machine. The error below indicates a header file for it is missing. 
Instructions for setting OpenBabel up on windows are here: 
https://github.com/girke-lab/ChemmineOB/blob/master/INSTALL.


Build error report: 
https://github.com/r-universe/bioc/actions/runs/36315653220/job/108610748908


using C++ compiler: 'G__~1.EXE (GCC) 14.3.0'

g++ -std=gnu++20 -I"C:/R/include" -DNDEBUG -I'C:/R/library/BH/include' 
-I'C:/R/library/Rcpp/include' 
-I"C:/rtools45/x86_64-w64-mingw32.static.posix/include" -I/x64/include 
-IC:/openbabel3/deps/eigen-3.4.0 -DHAVE_EIGEN -DHAVE_ISFINITE 
-Wno-misleading-indentation -fPIC -O2 -Wall -mfpmath=sse -msse2 
-mstackrealign -c ChemmineOB.cpp -o ChemmineOB.o
ChemmineOB.cpp:1569:10: fatal error: openbabel/obutil.h: No such file or 
directory
1569 | #include <openbabel/obutil.h>
| ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [C:/R/etc/x64/Makeconf:304: ChemmineOB.o] Error 1
ERROR: compilation failed for package 'ChemmineOB'
* removing 'D:/a/bioc/bioc/mylib/ChemmineOB'
Error: Process completed with exit code 1.

Kevin
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