/usr/share/cross-gcc/patches/gcc-6/ is in cross-gcc-dev 176.
This file is owned by root:root, with mode 0o755.
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/usr/share/cross-gcc/patches/gcc-6/0001-Allowing-with_deps_on_target_arch_deps-again.patch
/usr/share/cross-gcc/patches/gcc-6/0002-added-DEB_CROSS_NO_BIARCH-option-to-disable-biarch-s.patch
/usr/share/cross-gcc/patches/gcc-6/0003-Compilers-now-depend-on-cpp-instead-of-gcc-base.patch
/usr/share/cross-gcc/patches/gcc-6/0004-added-multi-arch-specific-install-location-patch.patch
/usr/share/cross-gcc/patches/gcc-6/0005-setting-all-the-various-paths-options-for-with_deps_.patch
/usr/share/cross-gcc/patches/gcc-6/0006-Allow-target-selection-via-dpkg-buildpackage-target-.patch
/usr/share/cross-gcc/patches/gcc-6/0007-Skip-libjit-when-we-re-cross-building.patch
/usr/share/cross-gcc/patches/gcc-6/0008-g-include-directories-functional-again.patch
/usr/share/cross-gcc/patches/gcc-6/0009-made-unstripped_exe-setting-overridable.patch
/usr/share/cross-gcc/patches/gcc-6/0010-gcc-.-base-dependencies-reverted-to-gcc-VER-base-whe.patch
/usr/share/cross-gcc/patches/gcc-6/0011-base-now-part-of-lib_binaries-again-not-arch_binarie.patch
/usr/share/cross-gcc/patches/gcc-6/series