[r] Resolve interaction between ccache and package build

[johnkerl]

Follow-on from chanzuckerberg/cellxgene-census#809.

Repro:

docker run --rm -ti eddelbuettel/r2u:jammy
apt-get update
apt-get install -y cmake git ccache

Rscript -e 'install.packages("tiledbsoma", repos = c("https://tiledb-inc.r-universe.dev", "https://cloud.r-project.org"))'
Rscript -e 'update.packages(ask=FALSE)'
Rscript -e 'remotes::install_github(repo="TileDB-Inc/TileDB-R@0.20.3")'
Rscript -e 'tiledbsoma::show_package_versions()'

If ~/.R/Makevars does not exist, or lacks ccache lines, this works as intended. However, in the following scenario

$ cat ~/.R/Makevars
#VER=-13
CCACHE=ccache
CC=$(CCACHE) gcc$(VER)
CXX=$(CCACHE) g++$(VER)
CXX11=$(CCACHE) g++$(VER) #-std=c++11
CXX14=$(CCACHE) g++$(VER) #-std=c++14
CXX17=$(CCACHE) g++$(VER) #-std=c++17

then

Rscript -e 'install.packages("tiledbsoma", repos = c("https://tiledb-inc.r-universe.dev", "https://cloud.r-project.org"))'

results in a compile error at the spdlog step which includes

  The C compiler

    "/usr/bin/ccache"

  is not able to compile a simple test program.

[eddelbuettel]

Should we first demonstrate that the issue persists on current versions? I don't think it is under tiledb dev.

[johnkerl]

@eddelbuettel I'll remind myself to test this out with 1.5.0 when we release it.

[eddelbuettel]

As you know I live on dev and it completely changed how this is done (and I gave in being different, so even when I have Ubuntu builds this now takes over but caches) so I now build 'everything' too (under vcpkg cache) and I have had no issues.

So all hail TileDB 2.18 where this is sorted out. I'd close this one.

[johnkerl]

@eddelbuettel I will test this out with 2.18 and then close. Thank you!

[eddelbuettel]

In case it matters, my current ~/.R/Makevars minus its copious commented-out lines

edd@rob:~$ grep -v "^#" .R/Makevars

PEDANTIC=-pedantic

XTRAFLAGS=-fdiagnostics-color=always
DEBUG_OPTIM=-g -O3


CFLAGS=               $(DEBUG_OPTIM) -Wall -pipe            $(XTRAFLAGS)

CXXFLAGS=               $(DEBUG_OPTIM) -Wall -pipe $(PEDANTIC) $(XTRAFLAGS) $(LTO)
CXX1XFLAGS=             $(DEBUG_OPTIM) -Wall -pipe $(PEDANTIC) $(XTRAFLAGS) $(LTO)
CXX11FLAGS=             $(DEBUG_OPTIM) -Wall -pipe $(PEDANTIC) $(XTRAFLAGS) $(LTO)
CXX14FLAGS=             $(DEBUG_OPTIM) -Wall -pipe $(PEDANTIC) $(XTRAFLAGS) $(LTO)
CXX17FLAGS=             $(DEBUG_OPTIM) -Wall -pipe $(PEDANTIC) $(XTRAFLAGS) $(LTO)
CXX20FLAGS=             $(DEBUG_OPTIM) -Wall -pipe $(PEDANTIC) $(XTRAFLAGS) $(LTO)

FLAGS=-Wall -O3 -g -pipe $(PEDANTIC) $(XTRAFLAGS)


FFLAGS=-O3 -g0 -Wall -pipe
FCFLAGS=-O3 -g0 -Wall -pipe

VER=-12
CCACHE=ccache
CC=$(CCACHE) gcc$(VER)
CXX=$(CCACHE) g++$(VER)
CXX11=$(CCACHE) g++$(VER) #-std=c++11
CXX14=$(CCACHE) g++$(VER) #-std=c++14
CXX17=$(CCACHE) g++$(VER) #-std=c++17
CXX20=$(CCACHE) g++$(VER) #-std=c++20

SHLIB_CXXLD=$(CCACHE) g++$(VER)

STRIP=-Wl,-S
SHLIB_CXXLDFLAGS = $(STRIP) -shared $(LTO_LD)
SHLIB_CXX11LDFLAGS = $(STRIP) -shared $(LTO_LD)
SHLIB_CXX14LDFLAGS = $(STRIP) -shared $(LTO_LD)
SHLIB_CXX17LDFLAGS = $(STRIP) -shared $(LTO_LD)
SHLIB_CXX20LDFLAGS = $(STRIP) -shared $(LTO_LD)
SHLIB_FCLDFLAGS = $(STRIP) -shared $(LTO_LD)
SHLIB_LDFLAGS = $(STRIP) -shared $(LTO_LD)

FC=$(CCACHE) gfortran
F77=$(CCACHE) gfortran
F95=$(CCACHE) gfortran


edd@rob:~$