Add patch to allow partclone to build.

patch/filesystem/fs.patch

@@ -0,0 +1,117 @@
+diff --git a/Config.in b/Config.in
+index d3bf6000ca..b3e0c9ff64 100644
+--- a/Config.in
++++ b/Config.in
+@@ -687,6 +687,24 @@ config BR2_GLOBAL_PATCH_DIR
+
+ menu "Advanced"
+
++config BR2_COMPILER_PARANOID_UNSAFE_PATH
++	bool "paranoid check of library/header paths"
++	default y
++	help
++	  By default, when this option is disabled, when the Buildroot
++	  cross-compiler will encounter an unsafe library or header path
++	  (such as /usr/include, or /usr/lib), the compiler will display
++	  a warning.
++
++	  By enabling this option, this warning is turned into an error,
++	  which will completely abort the build when such unsafe paths
++	  are encountered.
++
++	  Note that this mechanism is available for both the internal
++	  toolchain (through the toolchain wrapper and binutils patches)
++	  and external toolchain backends (through the toolchain
++	  wrapper).
++
+ config BR2_FORCE_HOST_BUILD
+ 	bool "Force the building of host dependencies"
+ 	help
+diff --git a/package/Makefile.in b/package/Makefile.in
+index 7e6ae19559..8ffabdea55 100644
+--- a/package/Makefile.in
++++ b/package/Makefile.in
+@@ -428,8 +428,9 @@ else ifeq ($(BR2_SHARED_STATIC_LIBS),y)
+ SHARED_STATIC_LIBS_OPTS = --enable-static --enable-shared
+ endif
+
+-# Used by our binutils patches.
++ifeq ($(BR2_COMPILER_PARANOID_UNSAFE_PATH),y)
+ export BR_COMPILER_PARANOID_UNSAFE_PATH=enabled
++endif
+
+ include package/pkg-download.mk
+ include package/pkg-autotools.mk
+diff --git a/support/config-fragments/minimal.config b/support/config-fragments/minimal.config
+index 3430fcce11..71344e2c69 100644
+--- a/support/config-fragments/minimal.config
++++ b/support/config-fragments/minimal.config
+@@ -4,4 +4,5 @@ BR2_INIT_NONE=y
+ BR2_SYSTEM_BIN_SH_NONE=y
+ # BR2_PACKAGE_BUSYBOX is not set
+ # BR2_TARGET_ROOTFS_TAR is not set
++BR2_COMPILER_PARANOID_UNSAFE_PATH=y
+ BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
+diff --git a/toolchain/toolchain-wrapper.c b/toolchain/toolchain-wrapper.c
+index f66e588bfd..8d856bac44 100644
+--- a/toolchain/toolchain-wrapper.c
++++ b/toolchain/toolchain-wrapper.c
+@@ -157,6 +157,7 @@ static const struct str_len_s unsafe_opts[] = {
+  */
+ static void check_unsafe_path(const char *arg,
+ 			      const char *path,
++			      int paranoid,
+ 			      int arg_has_path)
+ {
+ 	const struct str_len_s *p;
+@@ -165,12 +166,14 @@ static void check_unsafe_path(const char *arg,
+ 		if (strncmp(path, p->str, p->len))
+ 			continue;
+ 		fprintf(stderr,
+-			"%s: ERROR: unsafe header/library path used in cross-compilation: '%s%s%s'\n",
++			"%s: %s: unsafe header/library path used in cross-compilation: '%s%s%s'\n",
+ 			program_invocation_short_name,
++			paranoid ? "ERROR" : "WARNING",
+ 			arg,
+ 			arg_has_path ? "" : "' '", /* close single-quote, space, open single-quote */
+ 			arg_has_path ? "" : path); /* so that arg and path are properly quoted. */
+-		exit(1);
++		if (paranoid)
++			exit(1);
+ 	}
+ }
+
+@@ -245,6 +248,8 @@ int main(int argc, char **argv)
+ 	char *progpath = argv[0];
+ 	char *basename;
+ 	char *env_debug;
++	char *paranoid_wrapper;
++	int paranoid;
+ 	int ret, i, count = 0, debug = 0, found_shared = 0;
+
+ 	/* Debug the wrapper to see arguments it was called with.
+@@ -463,6 +468,12 @@ int main(int argc, char **argv)
+ #endif
+ 	}
+
++	paranoid_wrapper = getenv("BR_COMPILER_PARANOID_UNSAFE_PATH");
++	if (paranoid_wrapper && strlen(paranoid_wrapper) > 0)
++		paranoid = 1;
++	else
++		paranoid = 0;
++
+ 	/* Check for unsafe library and header paths */
+ 	for (i = 1; i < argc; i++) {
+ 		const struct str_len_s *opt;
+@@ -479,9 +490,9 @@ int main(int argc, char **argv)
+ 				i++;
+ 				if (i == argc)
+ 					break;
+-				check_unsafe_path(argv[i-1], argv[i], 0);
++				check_unsafe_path(argv[i-1], argv[i], paranoid, 0);
+ 			} else
+-				check_unsafe_path(argv[i], argv[i] + opt->len, 1);
++				check_unsafe_path(argv[i], argv[i] + opt->len, paranoid, 1);
+ 		}
+ 	}
+