On 12 May 2025 at 09:43, Charles Plessy wrote: | - A src/Makevars file containing +CXXFLAGS = -fsigned-char
a) maybe use += instead of = ? b) maybe use PKG_CXXFLAGS instead as CXXFLAGS get overridden ? b) should work but it's late-ish on a sunday eve here ... This should be fixable. I'll try to take a look tomorrow afternoon if nobody beats me to it... | - export DEB_CXXFLAGS_MAINT_APPEND = -fsigned-char in debian/rules | - Pass it directly through --configure-vars, with the following | debian/rules file: | | ----------------------------------------------------------- | #!/usr/bin/make -f | | CXXFLAGS := $(shell dpkg-buildflags --get CXXFLAGS) -fsigned-char | | %: | dh $@ --buildsystem R | | override_dh_auto_install: | mkdir -p ./debian/r-cran-bigmemory/usr/lib/R/site-library | R CMD INSTALL \ | --configure-vars='CXXFLAGS="$(CXXFLAGS)"' \ | -l ./debian/r-cran-bigmemory/usr/lib/R/site-library \ | --clean . \ | --built-timestamp='Wed, 17 Jan 2024 14:04:25 +0100' | ----------------------------------------------------------- | | In none of these attempts I could see -fsigned-char in the build logs. | | I am hitting a wall there as I have little knowledge about the use of | C/C++ in R packages. There sadly are a few un(der)documented corners. | Do you know how to pass compiler flags to R CMD INSTALL in the context | of dh $@ --buildsystem R ? First step is to get it to work via 'R CMD INSTALL ...' and the Debian wrapper come thereafter. Cheers, Dirk -- dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org
