Installation fails on Apple aarch64

[Mankka]

Installation of sass fails, probably due to wrong or missing header files. Installation of devtools also fails for similar dependency issues (one of them sass). Platform is

R version 4.4.2 (2024-10-31) -- "Pile of Leaves"
Copyright (C) 2024 The R Foundation for Statistical Computing
Platform: aarch64-apple-darwin24.1.0

See details for first error message. I can investigate further, but I'm not very experienced in R development so I don't know where to start.

> remotes::install_github("rstudio/sass")
Downloading GitHub repo rstudio/sass@HEAD
Running `R CMD build`...
* checking for file ‘/private/var/folders/l0/x1xgt3z53wvbypr79wc0tznm0000gn/T/RtmpNGtseY/remotesf0f66aca1212/rstudio-sass-9228fcf/DESCRIPTION’ ... OK
* preparing ‘sass’:
* checking DESCRIPTION meta-information ... OK
* cleaning src
* checking for LF line-endings in source and make files and shell scripts
* checking for empty or unneeded directories
Removed empty directory ‘sass/scripts’
* building ‘sass_0.4.9.9000.tar.gz’
Installing package into ‘/Users/henrik/Library/R/arm64/4.4/library’
(as ‘lib’ is unspecified)
* installing *source* package ‘sass’ ...
** using staged installation
** libs
/opt/local/Library/Frameworks/R.framework/Resources/share/make/shlib.mk:18: warning: overriding commands for target `shlib-clean'
Makevars:12: warning: ignoring old commands for target `shlib-clean'
using C compiler: ‘clang version 18.1.8’
using C++ compiler: ‘clang version 18.1.8’
using SDK: ‘MacOSX15.2.sdk’
/opt/local/Library/Frameworks/R.framework/Resources/share/make/shlib.mk:18: warning: overriding commands for target `shlib-clean'
Makevars:12: warning: ignoring old commands for target `shlib-clean'
/opt/local/bin/clang-mp-18 -I"/opt/local/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I./libsass/include  -I/opt/local/include -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk    -fPIC  -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64  -c compile.c -o compile.o
/opt/local/bin/clang++-mp-18 -std=gnu++17 -I"/opt/local/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I./libsass/include  -I/opt/local/include -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk    -fPIC  -pipe -Os -stdlib=libc++ -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64   -c init.cpp -o init.o
MAKEFLAGS= CC="/opt/local/bin/clang-mp-18" CFLAGS="-pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64 " CXX="/opt/local/bin/clang++-mp-18 -std=gnu++17" AR="ar" LDFLAGS="-L/opt/local/lib -Wl,-headerpad_max_install_names -Wl,-rpath,/opt/local/lib/libgcc -Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64" make -C libsass
/opt/local/bin/clang-mp-18 -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64  -O2 -I ./include  -fPIC -c -o src/cencode.o src/cencode.c
/opt/local/bin/clang++-mp-18 -std=gnu++17 -Wall -O2 -std=c++11 -I ./include  -stdlib=libc++ -fPIC -c -o src/ast.o src/ast.cpp
In file included from src/ast.cpp:3:
In file included from src/sass.hpp:55:
In file included from src/memory.hpp:8:
In file included from src/memory/allocator.hpp:8:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/vector:308:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/__algorithm/copy.h:12:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/__algorithm/copy_move_common.h:18:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/__string/constexpr_c_functions.h:14:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/__memory/construct_at.h:23:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/new:364:
In file included from /opt/local/libexec/llvm-18/bin/../include/c++/v1/cstdlib:87:
/opt/local/libexec/llvm-18/bin/../include/c++/v1/stdlib.h:145:30: error: unknown type name 'ldiv_t'
  145 | inline _LIBCPP_HIDE_FROM_ABI ldiv_t div(long __x, long __y) _NOEXCEPT { return ::ldiv(__x, __y); }
      |                              ^
/opt/local/libexec/llvm-18/bin/../include/c++/v1/stdlib.h:145:82: error: no member named 'ldiv' in the global namespace
  145 | inline _LIBCPP_HIDE_FROM_ABI ldiv_t div(long __x, long __y) _NOEXCEPT { return ::ldiv(__x, __y); }

[Mankka]

I noticed that the installation used CFLAGS="-pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX15.sdk -arch arm64 " but that there was no corresponding CXXFLAGS. I am not familiar enough with the build process, so I resorted to a hack. I downloaded the source and edited the Makevars file to force it. Now everything works.

Is this an error in the package or the build process?

[gadenbuie]

Can you share the output of sessioninfo::session_info()? I can't reproduce the issue and I'm on a very similar OS and hardware

─ Session info ──────────────────────────────────────────────
 setting  value
 version  R version 4.4.2 (2024-10-31)
 os       macOS Sequoia 15.1.1
 system   aarch64, darwin20
 ui       X11
 language (EN)
 collate  en_US.UTF-8
 ctype    en_US.UTF-8
 tz       America/New_York
 date     2024-12-20
 pandoc   3.6 @ /opt/homebrew/bin/pandoc

[Mankka]

> sessioninfo::session_info()
─ Session info ─────────
 setting  value
 version  R version 4.4.2 (2024-10-31)
 os       macOS Sequoia 15.2
 system   aarch64, darwin24.1.0
 ui       unknown
 language (EN)
 collate  C
 ctype    UTF-8
 tz       Europe/Helsinki
 date     2024-12-20
 pandoc   NA

─ Packages ───────────
 package     * version date (UTC) lib source
 cli           3.6.3   2024-06-21 [1] CRAN (R 4.4.2)
 sessioninfo   1.2.2   2021-12-06 [1] CRAN (R 4.4.2)

 [1] /Users/henrik/Library/R/arm64/4.4/library
 [2] /opt/local/Library/Frameworks/R.framework/Versions/4.4/Resources/library

──────────────

[Mankka]

I think the main issue is the absence of the isysroot for the c++ compiler, but I have no idea of why it wasn't there.