From: Rafael Sadowski <rafael@sizeofvoid.org>
Subject: Re: [libcxx22] qt6/qtshadertools build fix
To: Theo Buehler <tb@theobuehler.org>
Cc: ports@openbsd.org
Date: Thu, 20 Aug 2026 07:40:36 +0200

On Thu Aug 20, 2026 at 05:57:48AM +0200, Theo Buehler wrote:
> The build of doc.cpp ends with "LLVM ERROR: out of memory" because c++
> just gobbles up all the memory. That's probably a compiler bug. Using
> -O1 avoids this problem and unlocks a few hundred ports by way of
> qt6/qtdeclarative.

Thanks, ok rsadowski

> 
> Index: Makefile
> ===================================================================
> RCS file: /cvs/ports/x11/qt6/qtshadertools/Makefile,v
> diff -u -p -r1.11 Makefile
> --- Makefile	16 Nov 2024 06:55:00 -0000	1.11
> +++ Makefile	20 Aug 2026 03:13:58 -0000
> @@ -1,6 +1,7 @@
>  QT6NAME =	QtShaderTools
>  COMMENT =	Qt6 shader tools module
>  PKGSPEC =	qt6-qtshadertools-${QT6_PKGSPEC}
> +REVISION =	0
>  
>  SHARED_LIBS =  Qt6ShaderTools              3.0 # 6.7
>  
> Index: patches/patch-src_glslang_CMakeLists_txt
> ===================================================================
> RCS file: patches/patch-src_glslang_CMakeLists_txt
> diff -N patches/patch-src_glslang_CMakeLists_txt
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ patches/patch-src_glslang_CMakeLists_txt	20 Aug 2026 03:15:12 -0000
> @@ -0,0 +1,13 @@
> +build with libcxx22 runs out of memory with -O2
> +
> +Index: src/glslang/CMakeLists.txt
> +--- src/glslang/CMakeLists.txt.orig
> ++++ src/glslang/CMakeLists.txt
> +@@ -31,6 +31,7 @@ qt_internal_add_3rdparty_library(BundledGlslang_Spirv
> + )
> + qt_disable_warnings(BundledGlslang_Spirv)
> + qt_set_symbol_visibility_hidden(BundledGlslang_Spirv)
> ++set_source_files_properties(../3rdparty/glslang/SPIRV/doc.cpp PROPERTIES COMPILE_OPTIONS "-O1")
> + 
> + ## Scopes:
> + #####################################################################
>