Better Cygwin support.

- configure.ac: Add -lpthread only if acx_pthread_ok is yes. In cygwin, we use Windows' thread so that we don't need -lpthread.
- base/mutex.h: Define NOMINMAX before we include windows.h.
- glog/*.h: Make sure that dllimport doesn't appear in cygwin. Note that windows.h may define _WIN32 macro.
- utilities.h: Define OS_CYGWIN.


git-svn-id: https://google-glog.googlecode.com/svn/trunk@30 eb4d4688-79bd-11dd-afb4-1d65580434c0

configure

@@ -23786,8 +23786,9 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-# To make libglog depend on libpthread on Linux, we need to add
-# -lpthread in addition to -pthread.
+if test x"$acx_pthread_ok" = x"yes"; then
+  # To make libglog depend on libpthread on Linux, we need to add
+  # -lpthread in addition to -pthread.
 
 { echo "$as_me:$LINENO: checking for pthread_self in -lpthread" >&5
 echo $ECHO_N "checking for pthread_self in -lpthread... $ECHO_C" >&6; }
@@ -23859,6 +23860,7 @@ _ACEOF
 
 fi
 
+fi
 
 # Check if there is google-gflags library installed.
 { echo "$as_me:$LINENO: checking for main in -lgflags" >&5

configure.ac

@@ -92,9 +92,11 @@ AM_CONDITIONAL(X86_64, test "$is_x86_64" = yes)
 
 # Some of the code in this directory depends on pthreads
 ACX_PTHREAD
-# To make libglog depend on libpthread on Linux, we need to add
-# -lpthread in addition to -pthread.
-AC_CHECK_LIB(pthread, pthread_self)
+if test x"$acx_pthread_ok" = x"yes"; then
+  # To make libglog depend on libpthread on Linux, we need to add
+  # -lpthread in addition to -pthread.
+  AC_CHECK_LIB(pthread, pthread_self)
+fi
 
 # Check if there is google-gflags library installed.
 AC_CHECK_LIB(gflags, main, ac_cv_have_libgflags=1, ac_cv_have_libgflags=0)

src/base/mutex.h

@@ -79,7 +79,7 @@
 #elif defined(HAVE_PTHREAD)
 # include <pthread.h>
   typedef pthread_mutex_t MutexType;
-#elif defined(OS_WINDOWS)
+#elif defined(OS_WINDOWS) || defined(OS_CYGWIN)
 # define WIN32_LEAN_AND_MEAN  // We only need minimal includes
 # ifdef GMUTEX_TRYLOCK
   // We need Windows NT or later for TryEnterCriticalSection().  If you
@@ -91,6 +91,8 @@
 # endif
 // To avoid macro definition of ERROR.
 # define NOGDI
+// To avoid macro definition of min/max.
+# define NOMINMAX
 # include <windows.h>
   typedef CRITICAL_SECTION MutexType;
 #else

src/glog/log_severity.h

@@ -5,7 +5,7 @@
 
 // Annoying stuff for windows -- makes sure clients can import these functions
 #ifndef GOOGLE_GLOG_DLL_DECL
-# ifdef _WIN32
+# if defined(_WIN32) && !defined(__CYGWIN__)
 #   define GOOGLE_GLOG_DLL_DECL  __declspec(dllimport)
 # else
 #   define GOOGLE_GLOG_DLL_DECL

src/glog/logging.h.in

@@ -29,7 +29,7 @@
 
 // Annoying stuff for windows -- makes sure clients can import these functions
 #ifndef GOOGLE_GLOG_DLL_DECL
-# ifdef _WIN32
+# if defined(_WIN32) && !defined(__CYGWIN__)
 #   define GOOGLE_GLOG_DLL_DECL  __declspec(dllimport)
 # else
 #   define GOOGLE_GLOG_DLL_DECL

src/glog/raw_logging.h.in

@@ -15,7 +15,7 @@
 
 // Annoying stuff for windows -- makes sure clients can import these functions
 #ifndef GOOGLE_GLOG_DLL_DECL
-# ifdef _WIN32
+# if defined(_WIN32) && !defined(__CYGWIN__)
 #   define GOOGLE_GLOG_DLL_DECL  __declspec(dllimport)
 # else
 #   define GOOGLE_GLOG_DLL_DECL

src/glog/vlog_is_on.h.in

@@ -37,7 +37,7 @@
 
 // Annoying stuff for windows -- makes sure clients can import these functions
 #ifndef GOOGLE_GLOG_DLL_DECL
-# ifdef _WIN32
+# if defined(_WIN32) && !defined(__CYGWIN__)
 #   define GOOGLE_GLOG_DLL_DECL  __declspec(dllimport)
 # else
 #   define GOOGLE_GLOG_DLL_DECL

src/googletest.h

@@ -3,6 +3,8 @@
 #endif
 #define GOOGLETEST_H__
 
+#include "utilities.h"
+
 #include <ctype.h>
 #include <setjmp.h>
 #include <time.h>
@@ -491,7 +493,7 @@ class Thread {
   void Join() {
     pthread_join(th_, NULL);
   }
-#elif defined(OS_WINDOWS)
+#elif defined(OS_WINDOWS) || defined(OS_CYGWIN)
   void Start() {
     handle_ = CreateThread(NULL,
                            0,
@@ -517,9 +519,11 @@ class Thread {
     return NULL;
   }
 
-  pthread_t th_;
-#ifdef OS_WINDOWS
+#if defined(OS_WINDOWS) || defined(OS_CYGWIN)
   HANDLE handle_;
+  DWORD th_;
+#else
+  pthread_t th_;
 #endif
 };
 

src/utilities.h

@@ -6,8 +6,10 @@
 #ifndef UTILITIES_H__
 #define UTILITIES_H__
 
-#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
 # define OS_WINDOWS
+#elif defined(__CYGWIN__) || defined(__CYGWIN32__)
+# define OS_CYGWIN
 #elif defined(linux) || defined(__linux) || defined(__linux__)
 # define OS_LINUX
 #elif defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)
@@ -40,7 +42,7 @@
 
 #include <string>
 
-#if defined(OS_WINDOWS) && !defined(__CYGWIN__)
+#if defined(OS_WINDOWS)
 # include "port.h"
 #endif