Re: [Buildroot] [PATCH v2 2/2] package/boost: remove dependencies on Boost.System

[Arnout Vandecappelle via buildroot <buildroot@buildroot.org>]

In reply of:
> Boost.System is a header only library since Boost 1.69.0 [0].
> 
> A Stub Library remained for backward compatibility. This
> mainly affects CMake Packages that use FindPackage and
> explicitly list 'system'.
> 
> For Boost internal modules this is not the case so remove this
> dependency.
> 
> Buildroot packages should select BR2_PACKAGE_BOOST_SYSTEM explicitly
> if needed and not rely on a proxy dependency from other boost packages.
> 
> [0] https://github.com/boostorg/system/blob/develop/doc/system/changes.adoc#changes-in-boost-169
> 
> Signed-off-by: Michael Nosthoff <buildroot@heine.tech>

Applied to 2025.02.x and 2025.11.x. Thanks

> ---
>  package/boost/Config.in | 19 ++++---------------
>  1 file changed, 4 insertions(+), 15 deletions(-)
> 
> diff --git a/package/boost/Config.in b/package/boost/Config.in
> index c7c90aa9ab..fc7fd1c6cb 100644
> --- a/package/boost/Config.in
> +++ b/package/boost/Config.in
> @@ -24,7 +24,6 @@ config BR2_PACKAGE_BOOST_ATOMIC
>  
>  config BR2_PACKAGE_BOOST_CHRONO
>  	bool "boost-chrono"
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  Useful time utilities. C++11.
>  
> @@ -62,7 +61,6 @@ config BR2_PACKAGE_BOOST_CONTRACT
>  	bool "boost-contract"
>  	# pthread_condattr_setclock
>  	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  Contract programming for C++.
>  
> @@ -77,7 +75,6 @@ config BR2_PACKAGE_BOOST_COROUTINE
>  	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # boost-context, boost-thread
>  	select BR2_PACKAGE_BOOST_CHRONO
>  	select BR2_PACKAGE_BOOST_CONTEXT
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	select BR2_PACKAGE_BOOST_THREAD
>  	help
>  	  deprecated coroutine library, the non-deprecated coroutine2
> @@ -117,7 +114,6 @@ config BR2_PACKAGE_BOOST_FIBER
>  	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
>  	select BR2_PACKAGE_BOOST_CONTEXT
>  	select BR2_PACKAGE_BOOST_FILESYSTEM
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  C++11 userland threads library.
>  
> @@ -134,7 +130,6 @@ config BR2_PACKAGE_BOOST_FILESYSTEM
>  	bool "boost-filesystem"
>  	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
>  	select BR2_PACKAGE_BOOST_ATOMIC
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  The Boost Filesystem Library provides portable facilities to
>  	  query and manipulate paths, files, and directories.
> @@ -184,7 +179,6 @@ config BR2_PACKAGE_BOOST_LOCALE
>  	depends on !(BR2_TOOLCHAIN_HAS_GCC_BUG_64735 && BR2_PACKAGE_ICU) # boost-thread
>  	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS \
>  		|| !BR2_PACKAGE_ICU # boost-thread
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	select BR2_PACKAGE_BOOST_THREAD if BR2_PACKAGE_ICU
>  	select BR2_PACKAGE_LIBICONV if !BR2_ENABLE_LOCALE
>  	help
> @@ -209,7 +203,6 @@ config BR2_PACKAGE_BOOST_LOG
>  	select BR2_PACKAGE_BOOST_DATE_TIME
>  	select BR2_PACKAGE_BOOST_FILESYSTEM
>  	select BR2_PACKAGE_BOOST_REGEX
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	select BR2_PACKAGE_BOOST_THREAD
>  	help
>  	  Logging library.
> @@ -279,7 +272,6 @@ config BR2_PACKAGE_BOOST_PYTHON
>  
>  config BR2_PACKAGE_BOOST_RANDOM
>  	bool "boost-random"
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  A complete system for random number generation.
>  
> @@ -306,13 +298,14 @@ comment "boost-stacktrace needs a toolchain w/ dynamic library"
>  config BR2_PACKAGE_BOOST_SYSTEM
>  	bool "boost-system"
>  	help
> -	  Operating system support, including the diagnostics support
> -	  that will be part of the C++0x standard library.
> +	  Extensible Error Reporting.      
> +
> +	  This library is now header only. Building a stub library
> +	  is still supported for backward compatibility.
>  
>  config BR2_PACKAGE_BOOST_TEST
>  	bool "boost-test"
>  	depends on BR2_USE_MMU # fork()
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	select BR2_PACKAGE_BOOST_TIMER
>  	help
>  	  Support for simple program testing, full unit testing, and for
> @@ -323,7 +316,6 @@ config BR2_PACKAGE_BOOST_THREAD
>  	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
>  	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::current_exception
>  	select BR2_PACKAGE_BOOST_CHRONO
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  Portable C++ multi-threading. C++11, C++14.
>  
> @@ -333,7 +325,6 @@ comment "boost-thread needs a toolchain not affected by GCC bug 64735"
>  config BR2_PACKAGE_BOOST_TIMER
>  	bool "boost-timer"
>  	select BR2_PACKAGE_BOOST_CHRONO
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	help
>  	  Event timer, progress timer, and progress display classes.
>  
> @@ -341,7 +332,6 @@ config BR2_PACKAGE_BOOST_TYPE_ERASURE
>  	bool "boost-type_erasure"
>  	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-thread
>  	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # boost-thread
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	select BR2_PACKAGE_BOOST_THREAD
>  	help
>  	  Runtime polymorphism based on concepts.
> @@ -371,7 +361,6 @@ config BR2_PACKAGE_BOOST_WAVE
>  	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # boost-thread
>  	select BR2_PACKAGE_BOOST_DATE_TIME
>  	select BR2_PACKAGE_BOOST_FILESYSTEM
> -	select BR2_PACKAGE_BOOST_SYSTEM
>  	select BR2_PACKAGE_BOOST_THREAD
>  	help
>  	  The Boost.Wave library is a Standards conformant, and highly
> -- 
> 2.43.0
> 
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