[R-pkg-devel] R_MAKEVARS_USER fail to pass down to sub-makes?

Thank you Jeff for your comments.
Yet they does not seem to be related.
a) Environment variable is created inside `system` command, so env var
stays valid for the command. Which is confirmed in the first call that
properly shows CFLAGS.
b) Syntax passed checkbashisms so I expect no problems due to that.

On Mon, Jun 1, 2020 at 4:03 PM Jeff Newmiller
<jdnewmil at dcn.davis.ca.us> wrote:

I don't know anything about the function of that environment

variable, but

a) system() invokes a child process so environment variable changes

made using it will only affect the child process created by that system
call.

b) The syntax you have used is shell-specific, so does not look

portable.

On June 1, 2020 4:58:19 AM PDT, Jan Gorecki <j.gorecki at wit.edu.pl>

wrote:

Hi package devel support,

I am trying to use R_MAKEVARS_USER to customize build, rather than
.R/Makevars. It is properly displayed from config CFLAGS but during
package install it doesn't seem to work.

In R-admin in "6.3.3 Customizing package compilation" there is:

Note that these mechanisms do not work with packages which fail to

pass settings down to sub-makes, perhaps reading etc/Makeconf in
makefiles in subdirectories.

It seems that it applies to me. How should I debug that? to make

this

env var respected? Note that my pkg has src/Makevars to handle

openmp

switch nicely
Thank you

system("R_MAKEVARS_USER=library/gcc/O3/Makevars R CMD config

CFLAGS")

-O3

system("R_MAKEVARS_USER=library/gcc/O3/Makevars R CMD INSTALL
--library=library/gcc/O3 mypkg_1.0.0.tar.gz")
* installing *source* package 'mypkg' ...
** using staged installation
** libs
gcc -std=gnu99 -I"/usr/share/R/include" -DNDEBUG    -fopenmp -fpic 

-g

-O2 -fdebug-prefix-map=/build/r-base-V28x5H/r-base-3.6.3=.
-fstack-protector-strong -Wformat -Werror=format-security

-Wdate-time

-D_FORTIFY_SOURCE=2 -g  -c assign.c -o assign.o

--
Sent from my phone. Please excuse my brevity.