I originally posted on this topic on a different thread: https://stat.ethz.ch/pipermail/r-devel/2016-August/072938.html
These sources suggested that a safe practice might be to put double quotes around symbol names in EXPORTS in case the symbol name is the same as a linker keyword: - https://sourceware.org/binutils/docs/ld/Symbols.html#Symbols - https://msdn.microsoft.com/en-us/library/163abkbh.aspx I wasn't sure how that related specifically to what Rtools is using, but when I made the following change to winshlib.mk (double quotes around symbol names in tmp.def), I was able to compile code without issue and get symbols like BASE (or other keywords) exported. Kyle ## ${R_HOME}/share/make/winshlib.mk 6a7,8 > ADDQU = 's/[^ ][^ ]*/"&"/g' > 17c19 < $(NM) $^ | $(SED) -n $(SYMPAT) $(NM_FILTER) >> tmp.def; \ --- > $(NM) $^ | $(SED) -n $(SYMPAT) $(NM_FILTER) | $(SED) $(ADDQU) >> tmp.def; > \ code <- ' void BASE(int *nin, double *x) { int n = nin[0]; for (int i=0; i<n; i++) x[i] = x[i] * x[i]; } void rd(int *nin, double *x) { int n = nin[0]; for (int i=0; i<n; i++) x[i] = x[i] * x[i]; } double EXPORTS = 2.1; int LIBRARY = 3; ' writeLines(code, "src1.c") system("R CMD SHLIB src1.c") dyn.load("src1.dll") is.loaded("EXPORTS",PACKAGE="src1") is.loaded("BASE",PACKAGE="src1") is.loaded("rd",PACKAGE="src1") dyn.unload("src1.dll") -- Kyle Baron Metrum Research Group ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
