uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/servers/foundationdb/patches/gcc-fixes.patch

@@ -0,0 +1,138 @@
+diff --git a/fdbrpc/ContinuousSample.h b/fdbrpc/ContinuousSample.h
+index 54ff1b109..577c228ae 100644
+--- a/fdbrpc/ContinuousSample.h
++++ b/fdbrpc/ContinuousSample.h
+@@ -26,6 +26,7 @@
+ #include "flow/IRandom.h"
+ #include <vector>
+ #include <algorithm>
++#include <cmath>
+ 
+ template <class T>
+ class ContinuousSample {
+diff --git a/fdbrpc/Smoother.h b/fdbrpc/Smoother.h
+index 3ed8e6e98..fb4694750 100644
+--- a/fdbrpc/Smoother.h
++++ b/fdbrpc/Smoother.h
+@@ -23,6 +23,7 @@
+ #pragma once
+ 
+ #include "flow/flow.h"
++#include <cmath>
+ 
+ struct Smoother {
+ 	// Times (t) are expected to be nondecreasing
+@@ -90,4 +91,4 @@ struct TimerSmoother {
+ 	double time, total, estimate;
+ };
+ 
+-#endif
+\ No newline at end of file
++#endif
+diff --git a/fdbrpc/libcoroutine/Coro.c b/fdbrpc/libcoroutine/Coro.c
+index cbfdc8fde..9993cee44 100644
+--- a/fdbrpc/libcoroutine/Coro.c
++++ b/fdbrpc/libcoroutine/Coro.c
+@@ -66,6 +66,8 @@ VALGRIND_STACK_DEREGISTER((coro)->valgrindStackId)
+ #define STACK_DEREGISTER(coro)
+ #endif
+ 
++#pragma GCC diagnostic ignored "-Wreturn-local-addr"
++
+ // Define outside
+ extern intptr_t g_stackYieldLimit;
+ 
+diff --git a/fdbserver/Knobs.cpp b/fdbserver/Knobs.cpp
+index 819c513c6..acfbfe7db 100644
+--- a/fdbserver/Knobs.cpp
++++ b/fdbserver/Knobs.cpp
+@@ -20,6 +20,7 @@
+ 
+ #include "Knobs.h"
+ #include "fdbrpc/Locality.h"
++#include <cmath>
+ 
+ ServerKnobs const* SERVER_KNOBS = new ServerKnobs();
+ 
+diff --git a/flow/Knobs.cpp b/flow/Knobs.cpp
+index b485a8495..82541d439 100644
+--- a/flow/Knobs.cpp
++++ b/flow/Knobs.cpp
+@@ -20,6 +20,7 @@
+ 
+ #include "Knobs.h"
+ #include "flow/flow.h"
++#include <cmath>
+ 
+ FlowKnobs const* FLOW_KNOBS = new FlowKnobs();
+ 
+diff --git a/flow/Platform.cpp b/flow/Platform.cpp
+index 69dac889a..62bda9edb 100644
+--- a/flow/Platform.cpp
++++ b/flow/Platform.cpp
+@@ -40,6 +40,7 @@
+ #include <algorithm>
+ 
+ #include <sys/types.h>
++#include <sys/sysmacros.h>
+ #include <time.h>
+ #include <sys/stat.h>
+ #include <fcntl.h>
+@@ -623,7 +624,7 @@ void getDiskStatistics(std::string const& directory, uint64_t& currentIOs, uint6
+ 		unsigned int minorId;
+ 		disk_stream >> majorId;
+ 		disk_stream >> minorId;
+-		if(majorId == (unsigned int) major(buf.st_dev) && minorId == (unsigned int) minor(buf.st_dev)) {
++		if(majorId == (unsigned int) gnu_dev_major(buf.st_dev) && minorId == (unsigned int) gnu_dev_minor(buf.st_dev)) {
+ 			std::string ignore;
+ 			uint64_t rd_ios;	/* # of reads completed */
+ 			//	    This is the total number of reads completed successfully.
+diff --git a/flow/Profiler.actor.cpp b/flow/Profiler.actor.cpp
+index 27af613e6..69f38c237 100644
+--- a/flow/Profiler.actor.cpp
++++ b/flow/Profiler.actor.cpp
+@@ -35,8 +35,6 @@
+ 
+ extern volatile int profilingEnabled;
+ 
+-static uint64_t gettid() { return syscall(__NR_gettid); }
+-
+ struct SignalClosure {
+ 	void (* func)(int, siginfo_t*, void*, void*);
+ 	void *userdata;
+diff --git a/flow/TDMetric.actor.h b/flow/TDMetric.actor.h
+index 5421b83b5..711a96093 100755
+--- a/flow/TDMetric.actor.h
++++ b/flow/TDMetric.actor.h
+@@ -36,6 +36,7 @@
+ #include "CompressedInt.h"
+ #include <algorithm>
+ #include <functional>
++#include <cmath>
+ 
+ struct MetricNameRef {
+ 	MetricNameRef() {}
+diff --git a/flow/flow.h b/flow/flow.h
+index 0c220afae..f685fbc63 100644
+--- a/flow/flow.h
++++ b/flow/flow.h
+@@ -248,19 +248,6 @@ public:
+ 		}
+ 	}
+ 
+-	bool operator == (ErrorOr const& o) const {
+-		return error == o.error && (!present() || get() == o.get());
+-	}
+-	bool operator != (ErrorOr const& o) const {
+-		return !(*this == o);
+-	}
+-
+-	bool operator < (ErrorOr const& o) const {
+-		if (error != o.error) return error < o.error;
+-		if (!present()) return false;
+-		return get() < o.get();
+-	}
+-
+ 	bool isError() const { return error.code() != invalid_error_code; }
+ 	bool isError(int code) const { return error.code() == code; }
+ 	Error getError() const { ASSERT(isError()); return error; }