Include sys/time.h for cycleclock.h when building on MinGW (#680)

When building for ARM, there is a fallback codepath that uses gettimeofday, which requires sys/time.h. The Windows SDK doesn't have this header, but MinGW does have it. Thus, this fixes building for Windows on ARM with MinGW headers/libraries, while Windows on ARM with the Windows SDK still is broken.

Include sys/time.h for cycleclock.h when building on MinGW (#680)
439d6b1c · Martin Storsjö · Dominic Hamon · 52613079 · 439d6b1c · 439d6b1c
Commit 439d6b1c authored Sep 19, 2018 by Martin Storsjö Committed by Dominic Hamon Sep 19, 2018
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cycleclock.h src/cycleclock.h +1 -1

internal_macros.h src/internal_macros.h +3 -0

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--- a/src/cycleclock.h
+++ b/src/cycleclock.h
@@ -41,7 +41,7 @@ extern "C" uint64_t __rdtsc();
 #pragma intrinsic(__rdtsc)
 #endif
-#ifndef BENCHMARK_OS_WINDOWS
+#if !defined(BENCHMARK_OS_WINDOWS) || defined(BENCHMARK_OS_MINGW)
 #include <sys/time.h>
 #include <time.h>
 #endif

--- a/src/internal_macros.h
+++ b/src/internal_macros.h
@@ -40,6 +40,9 @@
  #define BENCHMARK_OS_CYGWIN 1
 #elif defined(_WIN32)
  #define BENCHMARK_OS_WINDOWS 1
+  #if defined(__MINGW32__)
+    #define BENCHMARK_OS_MINGW 1
+  #endif
 #elif defined(__APPLE__)
  #define BENCHMARK_OS_APPLE 1
  #include "TargetConditionals.h"