Support building in cygwin.

Revised the compiler platform macros. Building goes like
$ AMDAPPSDKROOT= CPPFLAGS=-I/usr/include/ncurses ./configure

adl.c

@@ -9,32 +9,32 @@
 
 #include "config.h"
 
-#if defined(HAVE_ADL) && (defined(__linux) || defined (WIN32))
+#if defined(HAVE_ADL) && (defined(__unix__) || defined (WIN32))
 
 #include <stdio.h>
 #include <string.h>
 #include <math.h>
 
 #ifdef HAVE_CURSES
-#include <curses.h>
+#	include <curses.h>
 #endif
 
 #include "miner.h"
 #include "ADL_SDK/adl_sdk.h"
 #include "compat.h"
 
-#if defined (__linux)
-#include <dlfcn.h>
-#include <stdlib.h>
-#include <unistd.h>
+#if defined (__unix__)
+#	include <dlfcn.h>
+#	include <stdlib.h>
+#	include <unistd.h>
 #else /* WIN32 */
-#include <windows.h>
-#include <tchar.h>
+#	include <windows.h>
+#	include <tchar.h>
 #endif
 #include "adl_functions.h"
 
 #ifndef HAVE_CURSES
-#define wlogprint(...)  applog(LOG_WARNING, __VA_ARGS__)
+#	define wlogprint(...)  applog(LOG_WARNING, __VA_ARGS__)
 #endif
 
 bool adl_active;
@@ -69,7 +69,7 @@ static void __stdcall ADL_Main_Memory_Free (void **lpBuffer)
 	}
 }
 
-#if defined (LINUX)
+#if defined (UNIX)
 // equivalent functions in linux
 static void *GetProcAddress(void *pLibrary, const char *name)
 {
@@ -114,7 +114,7 @@ static	ADL_OVERDRIVE6_FANSPEED_SET		ADL_Overdrive6_FanSpeed_Set;
 static	ADL_OVERDRIVE6_STATE_SET		ADL_Overdrive6_State_Set;
 static	ADL_OVERDRIVE6_POWERCONTROL_SET		ADL_Overdrive6_PowerControl_Set;
 
-#if defined (LINUX)
+#if defined (UNIX)
 	static void *hDLL;	// Handle to .so library
 #else
 	HINSTANCE hDLL;		// Handle to DLL
@@ -266,7 +266,7 @@ static bool prepare_adl(void)
 {
 	int result;
 
-#if defined (LINUX)
+#if defined (UNIX)
 	hDLL = dlopen( "libatiadlxx.so", RTLD_LAZY|RTLD_GLOBAL);
 #else
 	hDLL = LoadLibrary("atiadlxx.dll");
@@ -397,7 +397,7 @@ void init_adl(int nDevs)
 		       "strUDID:%s "
 		       "iBusNumber:%d "
 		       "iDeviceNumber:%d "
-#if defined(__linux)
+#if defined(__linux__)
 		       "iDrvIndex:%d "
 #endif
 		       "iFunctionNumber:%d "
@@ -409,7 +409,7 @@ void init_adl(int nDevs)
 		       lpInfo[i].strUDID,
 		       lpInfo[i].iBusNumber,
 		       lpInfo[i].iDeviceNumber,
-#if defined(__linux)
+#if defined(__linux__)
 		       lpInfo[i].iDrvIndex,
 #endif
 		       lpInfo[i].iFunctionNumber,
@@ -1584,7 +1584,7 @@ static void free_adl(void)
 {
 	ADL_Main_Memory_Free ((void **)&lpInfo);
 	ADL_Main_Control_Destroy ();
-#if defined (LINUX)
+#if defined (UNIX)
 	dlclose(hDLL);
 #else
 	FreeLibrary(hDLL);

adl_functions.h

@@ -29,13 +29,13 @@
 // AMD ADL function types from Version 3.0
 // ------------------------------------------------------------------------------------------------------------
 
-#if defined (linux)
- #include <dlfcn.h>	//dyopen, dlsym, dlclose
- #include <stdlib.h>
- #include <string.h>	//memeset
+#if defined (__unix__)
+#	include <dlfcn.h>	//dyopen, dlsym, dlclose
+#	include <stdlib.h>
+#	include <string.h>	//memeset
 #else
- #include <windows.h>
- #include <tchar.h>
+#	include <windows.h>
+#	include <tchar.h>
 #endif
 
 #include "ADL_SDK/adl_sdk.h"
@@ -267,7 +267,7 @@ typedef int ( *ADL_WORKSTATION_LOADBALANCING_CAPS ) (int iAdapterIndex, int *lpR
 
 // ------------------------------------------------------------------------------------------------------------
 
-#ifdef LINUX
+#ifdef __linux__
 // ADL Linux
 typedef int ( *ADL_ADAPTER_MEMORYINFO_GET ) (int iAdapterIndex, ADLMemoryInfo *lpMemoryInfo);
 typedef int ( *ADL_CONTROLLER_COLOR_SET ) (int iAdapterIndex, int iControllerIndex, ADLGamma adlGamma);

api.c

@@ -152,23 +152,19 @@ static const char *SCRYPTSTR = "scrypt";
 static const char *DEVICECODE = "GPU ";
 
 static const char *OSINFO =
-#if defined(__linux)
+#if defined(__linux__)
 			"Linux";
-#else
-#if defined(__APPLE__)
+#elif defined(__APPLE__)
 			"Apple";
-#else
-#if defined (WIN32)
+#elif defined(WIN32)
 			"Windows";
-#else
-#if defined(unix)
+#elif defined(__CYGWIN__)
+			"Cygwin";
+#elif defined(__unix__)
 			"Unix";
 #else
 			"Unknown";
 #endif
-#endif
-#endif
-#endif
 
 #define _DEVS		"DEVS"
 #define _POOLS		"POOLS"

configure.ac

@@ -297,10 +297,10 @@ AM_CONDITIONAL(USE_GIT_VERSION, [test x$usegitver = xyes])
 #check execv signature
 AC_COMPILE_IFELSE([AC_LANG_SOURCE([
 		   #include <process.h>
-		   int execv(const char*, const char*const*);
+		   int execv(const char*, char *const*);
 		   ])],
-		   AC_DEFINE([EXECV_2ND_ARG_TYPE], [const char* const*], [int execv(const char*, const char*const*);]),
-		   AC_DEFINE([EXECV_2ND_ARG_TYPE], [char* const*], [int execv(const char*, char*const*);]))
+		   AC_DEFINE([EXECV_2ND_ARG_TYPE], [char* const*], [int execv(const char*, char*const*);]),
+		   AC_DEFINE([EXECV_2ND_ARG_TYPE], [const char* const*], [int execv(const char*, const char*const*);]))
 
 dnl CCAN wants to know a lot of vars.
 # All the configuration checks.  Regrettably, the __attribute__ checks will

miner.h

@@ -84,10 +84,11 @@ static inline int fsync (int fd)
 #endif
 #endif /* __MINGW32__ */
 
-#if defined (__linux)
- #ifndef LINUX
-  #define LINUX
- #endif
+#if defined (__unix__) && !defined(UNIX)
+# define UNIX
+#endif
+#if defined (__linux__) && !defined(LINUX)
+# define LINUX
 #endif
 
 #ifdef WIN32

util.c

@@ -25,7 +25,7 @@
 #include <sys/types.h>
 #ifndef WIN32
 #include <fcntl.h>
-# ifdef __linux
+# ifdef __linux__
 #  include <sys/prctl.h>
 # endif
 # include <sys/socket.h>
@@ -63,15 +63,16 @@ static void keep_sockalive(SOCKETTYPE fd)
 #endif
 
 	setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (const void *)&tcp_one, sizeof(tcp_one));
+#ifndef __linux__
 	if (!opt_delaynet)
-#ifndef __linux
 		setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (const void *)&tcp_one, sizeof(tcp_one));
-#else /* __linux */
+#else /* __linux__ */
+	if (!opt_delaynet)
 		setsockopt(fd, SOL_TCP, TCP_NODELAY, (const void *)&tcp_one, sizeof(tcp_one));
 	setsockopt(fd, SOL_TCP, TCP_KEEPCNT, &tcp_one, sizeof(tcp_one));
 	setsockopt(fd, SOL_TCP, TCP_KEEPIDLE, &tcp_keepidle, sizeof(tcp_keepidle));
 	setsockopt(fd, SOL_TCP, TCP_KEEPINTVL, &tcp_keepintvl, sizeof(tcp_keepintvl));
-#endif /* __linux */
+#endif /* __linux__ */
 
 #ifdef __APPLE_CC__
 	setsockopt(fd, IPPROTO_TCP, TCP_KEEPALIVE, &tcp_keepintvl, sizeof(tcp_keepintvl));