fix: undef _GLIBCXX_USE_C99_STDLIB for all Qt/KF6 via toolchain
GCC <cstdlib> uses C99 stdlib wrappers (strtold etc.) gated by this macro. relibc declares but doesn't implement strtold. Undef at toolchain level prevents 'using ::strtold' errors in KF6/Qt C++ builds.
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@@ -40,6 +40,8 @@ cmake "${COOKBOOK_SOURCE}" \
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-DCMAKE_INSTALL_PREFIX=/usr \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_PREFIX_PATH="${COOKBOOK_SYSROOT}" \
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-DCMAKE_C_FLAGS="-U_GLIBCXX_USE_C99_STDLIB" \
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-DCMAKE_CXX_FLAGS="-U_GLIBCXX_USE_C99_STDLIB" \
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-DCMAKE_C_STANDARD_LIBRARIES="-liconv" \
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-DCMAKE_CXX_STANDARD_LIBRARIES="-liconv" \
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-DCMAKE_SHARED_LINKER_FLAGS="-liconv" \
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@@ -42,10 +42,10 @@ set(CMAKE_SYSTEM_VERSION 1)
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# Redox userspace currently must not emit CET/IBT entry instructions (endbr64),
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# because they trap as invalid opcode in the current runtime stack.
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set(CMAKE_C_FLAGS "-fcf-protection=none -march=x86-64 -include strings.h -include stdlib.h" CACHE STRING "" FORCE)
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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)
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set(CMAKE_C_FLAGS_RELEASE "-fcf-protection=none -march=x86-64 -include strings.h -include stdlib.h" CACHE STRING "" FORCE)
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set(CMAKE_CXX_FLAGS_RELEASE "-fcf-protection=none -march=x86-64 -fpermissive -include strings.h -include stdlib.h" CACHE STRING "" FORCE)
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set(CMAKE_C_FLAGS "-fcf-protection=none -march=x86-64 -include strings.h -include stdlib.h -U_GLIBCXX_USE_C99_STDLIB" CACHE STRING "" FORCE)
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set(CMAKE_CXX_FLAGS "-fcf-protection=none -march=x86-64 -fpermissive -include strings.h -include stdlib.h -U_GLIBCXX_USE_C99_STDLIB -I${COOKBOOK_SYSROOT}/usr/include/QtQml -I${COOKBOOK_SYSROOT}/usr/include/QtQuick" CACHE STRING "" FORCE)
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set(CMAKE_C_FLAGS_RELEASE "-fcf-protection=none -march=x86-64 -include strings.h -include stdlib.h -U_GLIBCXX_USE_C99_STDLIB" CACHE STRING "" FORCE)
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set(CMAKE_CXX_FLAGS_RELEASE "-fcf-protection=none -march=x86-64 -fpermissive -include strings.h -include stdlib.h -U_GLIBCXX_USE_C99_STDLIB" CACHE STRING "" FORCE)
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# Flag for redox.patch: enables REDOX-specific CMake code paths (mkspec, QPA plugin).
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# QtPlatformSupport.cmake checks this variable. Set as CACHE INTERNAL so it persists
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