8.2.28: Add sendmail and switch build to wasixcc

[zebreus]

The same as #11 and #16 but for php 8.2.28

[Copilot]

Pull request overview

This pull request migrates PHP 8.2.28 from a custom clang-20 based build toolchain to the wasixcc toolchain wrapper, and replaces the custom Rust-based sendmail implementation with the standard sendmail binary approach. This change aligns with PR #11 but is specifically for PHP 8.2.28.

Changes:

• Switched from manual clang-20 toolchain configuration to wasixcc/wasixcc++ wrapper tools
• Replaced custom wasix_sendmail Rust library with standard sendmail binary via package dependency
• Updated Wasmer volume mounting from --mapdir to --volume syntax
• Consolidated and streamlined CI/CD workflow using matrix strategy

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
wasmer-64.toml	Added wasmer/bash and sendmail/sendmail package dependencies
wasmer-32.toml	Added wasmer/bash and sendmail/sendmail package dependencies
wasix-test-server.sh	Migrated from --mapdir to --volume for directory mounting
wasix-execute-eh.sh	Migrated from --mapdir to --volume and removed SMTP configuration parameters
wasix-configure-eh.sh	Switched from clang-20 toolchain to wasixcc, removed SYSROOT dependency, added PROG_SENDMAIL configuration
wasix-configure.sh	Deleted - consolidated into wasixcc-based configuration
wasix-execute.sh	Deleted - no longer needed
wasix-build.sh	Deleted - build handled by wasix-build-eh.sh
main/main.c	Removed sendmail_username and sendmail_password INI entries
ext/standard/mail.c	Removed custom wasix_sendmail Rust implementation and SMTP credential handling
ext/standard/config.m4	Removed WASIX_SENDMAIL_LIBS linker configuration
build/php.m4	Changed C++ standard library from libstdc++ to libc++ for WASIX compatibility
.github/workflows/wasix-pr.yaml	Switched to wasixcc action, removed secrets, added matrix strategy, simplified workflow
.github/workflows/release.yaml	Removed sendmail credential secrets
.github/workflows/release-dev.yaml	Removed sendmail credential secrets

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[Copilot]

The SYSROOT environment variable is being set to a path that no longer exists. Since the wasixcc toolchain is now being used (installed via the wasix-org/wasixcc action at line 44), the sysroot is managed internally by wasixcc and this manual SYSROOT export is no longer needed. The wasix-configure-eh.sh script has been updated to use wasixcc which doesn't reference the SYSROOT environment variable. This line should be removed to avoid confusion.

Suggested change

export SYSROOT=$(pwd)/sysroot/wasix-sysroot-eh/sysroot

[Copilot]

The script uses --use amin/bash but the wasmer.toml files (wasmer-32.toml and wasmer-64.toml) declare a dependency on "wasmer/bash" = "=1.0.25". This inconsistency could cause runtime issues if the bash package locations don't match. Consider updating this to use --use wasmer/bash to match the dependency declaration, or verify that amin/bash is the correct package to use.

Suggested change

	--use amin/bash \
	--use wasmer/bash \

[Copilot]

There are two spaces between --with-imagick and --with-iconv which appears to be a formatting inconsistency. Consider using a single space for consistency with the rest of the configuration line.

Suggested change

	--with-pdo-sqlite --enable-ftp --enable-igbinary --with-imagick --with-iconv="$PHP_WASIX_DEPS"/iconv-eh \
	--with-pdo-sqlite --enable-ftp --enable-igbinary --with-imagick --with-iconv="$PHP_WASIX_DEPS"/iconv-eh \