From: "k0kubun (Takashi Kokubun) via ruby-core" <ruby-core@...>
Date: 2024-07-29T03:02:46+00:00
Subject: [ruby-core:118719] [Ruby master Bug#20088] Ruby 3.3.0 does not cross-complie on arm64-darwin
Issue #20088 has been updated by k0kubun (Takashi Kokubun).
Thanks, I cherry-picked the revision to `ruby_3_3`.
Since this ticket wasn't flagged as a backport request, I also added @mdalessio and @stanhu to the "Ruby master" project as "Contributor" so that you can update the "Backport" field yourself to request a backport next time https://github.com/ruby/ruby/wiki/How-To-Request-Backport.
You may also file a pull request to `ruby_3_3` branch on GitHub, which would be more helpful in case there's any conflict.
----------------------------------------
Bug #20088: Ruby 3.3.0 does not cross-complie on arm64-darwin
https://bugs.ruby-lang.org/issues/20088#change-109254
* Author: stanhu (Stan Hu)
* Status: Closed
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: DONE
----------------------------------------
To reproduce:
```shell
docker run -it ghcr.io/rake-compiler/rake-compiler-dock-image:1.4.0.rc2-mri-arm64-darwin bash
cd /tmp
export CPPFLAGS=''
export CFLAGS='-O1 -fno-omit-frame-pointer -fno-fast-math -fstack-protector-strong '
export LDFLAGS='-pipe '
export CC=aarch64-apple-darwin-clang
export MAKE='make V=1'
rake-compiler cross-ruby VERSION=3.3.0 HOST=aarch64-apple-darwin
```
This errors out with:
```shell
aarch64-apple-darwin-clang -O1 -fno-omit-frame-pointer -fno-fast-math -fstack-protector-strong -fdeclspec -O3 -fno-fast-math -ggdb3 -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition -Wmissing-noreturn -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter -Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef -pipe -march=arm64 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fno-strict-overflow -fvisibility=hidden -DRUBY_EXPORT -fPIE -I. -I.ext/include/arm64-darwin -I/usr/local/rake-compiler/sources/ruby-3.3.0/include -I/usr/local/rake-compiler/sources/ruby-3.3.0 -I/usr/local/rake-compiler/sources/ruby-3.3.0/prism -I/usr/local/rake-compiler/sources/ruby-3.3.0/e
nc/unicode/15.0.0 -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -o main.o -c /usr/local/rake-compiler/sources/ruby-3.3.0/main.c
clang: error: the clang compiler does not support '-march=arm64'
make: *** [uncommon.mk:1291: main.o] Error 1
```
This appears to be a regression due to https://github.com/ruby/ruby/pull/9250. `RUBY_DEFAULT_ARCH("$target_cpu")` is called, and this `case` statement is hit:
```ac
AS_CASE([$build_os],
[darwin*], [ARCH_FLAG="-arch "$1],
[ARCH_FLAG=-march=$1]
```
I'm not sure this test is correct, since `$build_os` appears to be `linux-gnu`. This results in `-march=arm64` being used, which is not a valid option even in `clang` 15.0.0.
Should `$target_cpu` and `$target_os` be considered instead?
The `configure` output shows:
```
Configuration summary for ruby version 3.3.0
* Installation prefix: /usr/local/rake-compiler/ruby/aarch64-apple-darwin/ruby-3.3.0
* exec prefix: ${prefix}
* arch: arm64-darwin
* site arch: ${arch}
* RUBY_BASE_NAME: ruby
* enable shared: no
* ruby lib prefix: ${libdir}/${RUBY_BASE_NAME}
* site libraries path: ${rubylibprefix}/${sitearch}
* vendor path: ${rubylibprefix}/vendor_ruby
* target OS: darwin
* compiler: aarch64-apple-darwin-clang
* with thread: pthread
* with coroutine: arm64
* enable shared libs: no
* dynamic library ext: bundle
* CFLAGS: -fdeclspec ${optflags} ${debugflags} ${warnflags}
* LDFLAGS: -L. -pipe -fstack-protector-strong
* DLDFLAGS: -pipe -Wl,-multiply_defined,suppress -Wl,-undefined,dynamic_lookup
* optflags: -O3 -fno-fast-math
* debugflags: -ggdb3
* warnflags: -Wall -Wextra -Wextra-tokens -Wdeprecated-declarations -Wdivision-by-zero -Wdiv-by-zero -Wimplicit-function-declaration -Wimplicit-int -Wpointer-arith -Wshorten-64-to-32 -Wwrite-strings -Wold-style-definition \
-Wmissing-noreturn -Wno-constant-logical-operand -Wno-long-long -Wno-missing-field-initializers -Wno-overlength-strings -Wno-parentheses-equality -Wno-self-assign -Wno-tautological-compare -Wno-unused-parameter \
-Wno-unused-value -Wunused-variable -Wmisleading-indentation -Wundef
* strip command: aarch64-apple-darwin-strip -A -n
* install doc: no
* YJIT support: no
* RJIT support: no
* man page type: man
* BASERUBY -v: ruby 3.1.3p185 (2022-11-24 revision 1a6b16756e) [x86_64-linux]
```
The `configure` statement for reference:
```
./configure --host=aarch64-apple-darwin --target=aarch64-apple-darwin --build=x86_64-pc-linux-gnu --enable-install-static-library --disable-jit-support --disable-install-doc --with-ext= --enable-static --disable-shared --prefix=/usr/local/rake-compiler/ruby/aarch64-apple-darwin/ruby-3.3.0
```
This was first reported in a CI failure in https://github.com/rake-compiler/rake-compiler-dock/pull/112#issuecomment-1869367367.
--
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