Re: [Buildroot] [PATCH/RFC 2/3] package/taglib: needs gcc >= 7

[Thomas Perale via buildroot <buildroot@buildroot.org>]

In reply of:
> Fixes a build error caught by the Gitlab pipelines:
> 
> /builds/bkuhls/buildroot/br-test-pkg/bootlin-aarch64-glibc-old/build/taglib-2.3/taglib/mpeg/mpegfile.cpp:113:10:
>  error: expected primary-expression before ‘const’
>        if(const Header header(&file, headerOffset + i, true); header.isValid()) {
> 
> which was introduced by code format changes in upstream commit
> https://github.com/taglib/taglib/commit/dfe2aa52532fc9f73a67499dd17fb527a856a22f
> 
> which was first released with taglib 2.0, added to buildroot with commit
> 9cd3464afa13fd0190fb3e94fd850cc8063cf297.
> 
> Signed-off-by: Bernd Kuhls <bernd@kuhls.net>

Applied to 2025.02.x & 2026.05.x. Thanks

> ---
> I have no idea if this patch is correct, at least blocking gcc 6 makes
> the Gitlab pipelines happy. It seems to me that the upstream commit uses
> newer language features not supported by gcc 6, but with my limited
> knowledge about C++ I could not find evidence to support my theory.
> 
>  package/gstreamer1/gst1-plugins-good/Config.in | 6 ++++--
>  package/taglib/Config.in                       | 6 ++++--
>  2 files changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/package/gstreamer1/gst1-plugins-good/Config.in b/package/gstreamer1/gst1-plugins-good/Config.in
> index 6a738faa00..c4eb4efb65 100644
> --- a/package/gstreamer1/gst1-plugins-good/Config.in
> +++ b/package/gstreamer1/gst1-plugins-good/Config.in
> @@ -403,13 +403,15 @@ config BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_SPEEX
>  config BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_TAGLIB
>  	bool "taglib"
>  	depends on BR2_INSTALL_LIBSTDCPP
> +	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # C++17
>  	depends on BR2_USE_WCHAR
>  	select BR2_PACKAGE_TAGLIB
>  	help
>  	  Taglib tagging plugin library
>  
> -comment "taglib needs a toolchain w/ C++, wchar"
> -	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR
> +comment "taglib needs a toolchain w/ C++, wchar, gcc >= 7"
> +	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR \
> +		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_7
>  
>  config BR2_PACKAGE_GST1_PLUGINS_GOOD_PLUGIN_TWOLAME
>  	bool "twolame"
> diff --git a/package/taglib/Config.in b/package/taglib/Config.in
> index 5b641a9653..9a43c82a5e 100644
> --- a/package/taglib/Config.in
> +++ b/package/taglib/Config.in
> @@ -1,6 +1,7 @@
>  config BR2_PACKAGE_TAGLIB
>  	bool "taglib"
>  	depends on BR2_INSTALL_LIBSTDCPP
> +	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # C++17
>  	depends on BR2_USE_WCHAR
>  	select BR2_PACKAGE_UTFCPP
>  	help
> @@ -12,5 +13,6 @@ config BR2_PACKAGE_TAGLIB
>  
>  	  http://taglib.org/
>  
> -comment "taglib needs a toolchain w/ C++, wchar"
> -	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR
> +comment "taglib needs a toolchain w/ C++, wchar, gcc >= 7"
> +	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR \
> +		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_7
> -- 
> 2.47.3
> 
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