The GNU R project provides a toolchain (gcc 4.9.3 / mingw-w64) with utils in a bundle called Rtools [1] for Windows users to compile contributed packages
The current Rtools includes make 3.79.1. We are trying to upgrade to a newer version, however the behavior of 'make' seems to have changed in a way that breaks our infrastructure. The main issue is how 'make' parses quoted paths. R generates rules like this: c:/Rtools/mingw_64/bin/gcc -I"C:/PROGRA~1/R/R-33~1.1/include" -DNDEBUG -Iyajl/api -I"d:/Compiler/gcc-4.9.3/local330/include" -O2 -Wall -std=gnu99 -mtune=core2 -c base64.c -o base64.o The line above works with the old 'make', however with make 4.2.1 this gives an error that headers cannot be found. The problem seems to be the quotation of paths. It looks like make does not parse the quotes and assumes the path as is, with the quotes. If I take away the quotes, the problem disappears. However given that there are over 10k R packages with hardcoded windows make files, altering behavior at this point is not an option. I am already compiling 'make' with ac_cv_dos_paths=yes. Are there any other configure options required to build a version that parses the quotes as our old 'make' does it, so that we can upgrade 'make' without massive disruptions? [1] https://cran.r-project.org/bin/windows/Rtools/ _______________________________________________ Help-make mailing list Help-make@gnu.org https://lists.gnu.org/mailman/listinfo/help-make
