Dear All,
For a package we develop, OncoSimulR (https://bioconductor.org/packages/release/bioc/html/OncoSimulR.html), we have added new functionality (https://github.com/rdiaz02/OncoSimul/tree/freq-dep-fitness) that uses the ExprTk library[1] for parsing and evaluation of mathematical expressions. This works fine under Linux. But it is known[2] that ExprTk can fail when using MinGW with the "too many sections" error. A solution that has been suggested is to use -Wa,-mbig-obj with -O3 [3]. But I am unable to have R compile the package with -O3; -O3 is never placed at the right of the default -O2 no matter what I set in Makevars.win[4]. Any suggestions? Thanks, R. [1] http://www.partow.net/programming/exprtk/index.html [2] https://sourceforge.net/p/mingw-w64/discussion/723797/thread/c6b70624/. [3] https://github.com/MrKepzie/Natron/blob/master/Engine/ExprTk.cpp "// exprtk requires -Wa,-mbig-obj on mingw, but there is a bug that prevents linking if not using -O3" See also, for example, https://discourse.mc-stan.org/t/too-many-sections/6261 [4] https://stackoverflow.com/questions/23414448/r-makevars-file-to-overwrite-r-cmds-default-g-options Our package has CXX_STD = CXX11 And I've tried: ## To the left of -O2 PKG_CXXFLAGS = -Wa,-mbig-obj -O3 ## To the left of -O2 PKG_CXXFLAGS += -Wa,-mbig-obj -O3 ## Also to the left of -O2 PKG_CPPFLAGS = -Wa,-mbig-obj -O3 ## Also to the left of -O2 PKG_CPPFLAGS += -Wa,-mbig-obj -O3 ## Ignored PKG_CXX11FLAGS = -Wa,-mbig-obj -O3 ## Ignored PKG_CXX11FLAGS += -Wa,-mbig-obj -O3 -- Ramon Diaz-Uriarte Department of Biochemistry, Lab B-25 Facultad de Medicina Universidad Autónoma de Madrid Arzobispo Morcillo, 4 28029 Madrid Spain Phone: +34-91-497-2412 Email: rdia...@gmail.com ramon.d...@iib.uam.es http://ligarto.org/rdiaz _______________________________________________ Bioc-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/bioc-devel