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fix: toolchain — disable PCH (strtold missing from precompiled headers)

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GCC <cstdlib> needs ::strtold. -include stdlib.h works for normal
compilation but PCH compiles without -include flags. Disabling PCH
globally prevents strtold visibility issues in all Qt/KF6 packages.
This commit is contained in:
vasilito
2026-06-29 11:33:21 +03:00
parent c33d771031
commit b1b8c3865a
1 changed files with 3 additions and 3 deletions
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local/recipes/qt/redox-toolchain.cmake
+3 -3
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@@ -42,13 +42,13 @@ set(CMAKE_SYSTEM_VERSION 1)
# Redox userspace currently must not emit CET/IBT entry instructions (endbr64),
# because they trap as invalid opcode in the current runtime stack.
# Ensure C99 stdlib declarations (strtold etc.) are visible before Qt headers
# pull in <cstdlib>. Needed for KF6/Qt C++ builds on relibc which declares
# strtold but implements it via libredbear-qt-strtold-compat.so.
set(CMAKE_C_FLAGS "-fcf-protection=none -march=x86-64 -include strings.h -include stdlib.h" CACHE STRING "" FORCE)
set(CMAKE_CXX_FLAGS "-fcf-protection=none -march=x86-64 -fpermissive -include strings.h -include stdlib.h -I${COOKBOOK_SYSROOT}/usr/include/QtQml -I${COOKBOOK_SYSROOT}/usr/include/QtQuick" CACHE STRING "" FORCE)
set(CMAKE_C_FLAGS_RELEASE "-fcf-protection=none -march=x86-64 -include strings.h -include stdlib.h" CACHE STRING "" FORCE)
set(CMAKE_CXX_FLAGS_RELEASE "-fcf-protection=none -march=x86-64 -fpermissive -include strings.h -include stdlib.h" CACHE STRING "" FORCE)
# Disable precompiled headers — PCH compiles without -include flags,
# missing C99 stdlib declarations (strtold) needed by GCC <cstdlib>.
set(CMAKE_DISABLE_PRECOMPILE_HEADERS ON CACHE BOOL "" FORCE)
# Flag for redox.patch: enables REDOX-specific CMake code paths (mkspec, QPA plugin).
# QtPlatformSupport.cmake checks this variable. Set as CACHE INTERNAL so it persists