[PATCH 1/6] GNU/Hurd: mark support mmap, write. fix misuse macro.

[Yuqian Yang <crupest@crupest.life>]

Current platform feature detection does not work
for GNU/Hurd. One place misuse __MACH__ for detection
of Apple platform. Correct them all for GNU/Hurd.
---
 absl/base/config.h                | 2 +-
 absl/base/internal/raw_logging.cc | 2 +-
 absl/log/stripping_test.cc        | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/absl/base/config.h b/absl/base/config.h
index 0b22167e..8bb27b6e 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -380,7 +380,7 @@ static_assert(ABSL_INTERNAL_INLINE_NAMESPACE_STR[0] != 'h' ||
     defined(__asmjs__) || defined(__EMSCRIPTEN__) || defined(__Fuchsia__) || \
     defined(__sun) || defined(__myriad2__) || defined(__HAIKU__) ||          \
     defined(__OpenBSD__) || defined(__NetBSD__) || defined(__QNX__) ||       \
-    defined(__VXWORKS__) || defined(__hexagon__)
+    defined(__VXWORKS__) || defined(__hexagon__) || defined(__GNU__)
 #define ABSL_HAVE_MMAP 1
 #endif
 
diff --git a/absl/base/internal/raw_logging.cc b/absl/base/internal/raw_logging.cc
index d32b40a8..81630372 100644
--- a/absl/base/internal/raw_logging.cc
+++ b/absl/base/internal/raw_logging.cc
@@ -44,7 +44,7 @@
 #if defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__) || \
     defined(__hexagon__) || defined(__Fuchsia__) ||                     \
     defined(__native_client__) || defined(__OpenBSD__) ||               \
-    defined(__EMSCRIPTEN__) || defined(__ASYLO__)
+    defined(__EMSCRIPTEN__) || defined(__ASYLO__) || defined(__GNU__)
 
 #include <unistd.h>
 
diff --git a/absl/log/stripping_test.cc b/absl/log/stripping_test.cc
index 271fae1d..20231b9f 100644
--- a/absl/log/stripping_test.cc
+++ b/absl/log/stripping_test.cc
@@ -33,7 +33,7 @@
 
 #include <stdio.h>
 
-#if defined(__MACH__)
+#if defined(__APPLE__)
 #include <mach-o/dyld.h>
 #elif defined(_WIN32)
 #include <Windows.h>
@@ -191,7 +191,7 @@ class StrippingTest : public ::testing::Test {
       absl::FPrintF(stderr, "Failed to open /pkg/bin/<binary name>: %s\n", err);
     }
     return fp;
-#elif defined(__MACH__)
+#elif defined(__APPLE__)
     uint32_t size = 0;
     int ret = _NSGetExecutablePath(nullptr, &size);
     if (ret != -1) {
-- 
Yuqian Yang <crupest@crupest.life>