OS X compatibility fixes

8 files changed, 138 insertions, 19 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f8aa75ea5..464070c24 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -162,7 +162,12 @@ else()
 		endif(APPLE)
 	endif(BUILD_CLIENT)
 	find_package(ZLIB REQUIRED)
-	set(PLATFORM_LIBS -lpthread -lrt ${CMAKE_DL_LIBS})
+	set(PLATFORM_LIBS -lpthread ${CMAKE_DL_LIBS})
+	if(APPLE)
+		set(PLATFORM_LIBS "-framework CoreFoundation" ${PLATFORM_LIBS})
+	else()
+		set(PLATFORM_LIBS -lrt ${PLATFORM_LIBS})
+	endif(APPLE)
 	#set(CLIENT_PLATFORM_LIBS -lXxf86vm)
 	# This way Xxf86vm is found on OpenBSD too
 	find_library(XXF86VM_LIBRARY Xxf86vm)
@@ -504,7 +509,7 @@ set(EXECUTABLE_OUTPUT_PATH "${CMAKE_SOURCE_DIR}/bin")
 if(BUILD_CLIENT)
 	add_executable(${PROJECT_NAME} ${minetest_SRCS})
 	add_dependencies(${PROJECT_NAME} GenerateVersion)
-	target_link_libraries(
+	set(minetest_LIBS
 		${PROJECT_NAME}
 		${ZLIB_LIBRARIES}
 		${IRRLICHT_LIBRARY}
@@ -522,6 +527,16 @@ if(BUILD_CLIENT)
 		${PLATFORM_LIBS}
 		${CLIENT_PLATFORM_LIBS}
 	)
+	if(APPLE)
+		target_link_libraries(
+			${minetest_LIBS}
+			${ICONV_LIBRARY}
+		)
+	else()
+		target_link_libraries(
+			${minetest_LIBS}
+		)
+	endif()
 	if(USE_CURL)
 		target_link_libraries(
 			${PROJECT_NAME}
@@ -605,7 +620,9 @@ if(MSVC)
 
 else()
 	# Probably GCC
-
+	if(APPLE)
+		SET( CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -pagezero_size 10000 -image_base 100000000" )
+	endif()
 	if(WARN_ALL)
 		set(RELEASE_WARNING_FLAGS "-Wall")
 	else()
@@ -623,12 +640,12 @@ else()
 		set(OTHER_FLAGS "-mthreads -fexceptions")
 	endif()
 
+	set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${RELEASE_WARNING_FLAGS} ${WARNING_FLAGS} ${OTHER_FLAGS} -ffast-math -Wall -pipe -funroll-loops")
 	if(APPLE)
-		set(CMAKE_OSX_ARCHITECTURES i386 CACHE STRING "do not build for 64-bit" FORCE)
-		set(ARCH i386)
-	endif()
-
-	set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG ${RELEASE_WARNING_FLAGS} ${WARNING_FLAGS} ${OTHER_FLAGS} -O3 -ffast-math -Wall -fomit-frame-pointer -pipe -funroll-loops")
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -Os")
+	else()
+		set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -fomit-frame-pointer")
+	endif(APPLE)
 	set(CMAKE_CXX_FLAGS_DEBUG "-g -O1 -Wall ${WARNING_FLAGS} ${OTHER_FLAGS}")
 
 	if(USE_GPROF)
diff --git a/src/cguittfont/irrUString.h b/src/cguittfont/irrUString.h
index 8d7a23aa4..32efaa683 100644
--- a/src/cguittfont/irrUString.h
+++ b/src/cguittfont/irrUString.h
@@ -45,6 +45,8 @@
 #define __BYTE_ORDER 0
 #define __LITTLE_ENDIAN 0
 #define __BIG_ENDIAN 1
+#elif __MACH__
+#include <machine/endian.h>
 #else
 #include <endian.h>
 #endif
diff --git a/src/jthread/jevent.h b/src/jthread/jevent.h
index d31d8e654..f97e09ca0 100644
--- a/src/jthread/jevent.h
+++ b/src/jthread/jevent.h
@@ -30,6 +30,11 @@
 
 #ifdef _WIN32
 #include <windows.h>
+#elif __MACH__
+#include <mach/mach.h>
+#include <mach/task.h>
+#include <mach/semaphore.h>
+#include <sys/semaphore.h>
 #else
 #include <semaphore.h>
 #endif
@@ -38,6 +43,8 @@
 class Event {
 #ifdef _WIN32
 	HANDLE hEvent;
+#elif __MACH__
+	semaphore_t sem;
 #else
 	sem_t sem;
 #endif
diff --git a/src/jthread/jsemaphore.h b/src/jthread/jsemaphore.h
index bdce2e4ae..53538da1c 100644
--- a/src/jthread/jsemaphore.h
+++ b/src/jthread/jsemaphore.h
@@ -24,6 +24,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <windows.h>
 #include <assert.h>
 #define MAX_SEMAPHORE_COUNT 1024
+#elif __MACH__
+#include <pthread.h>
+#include <mach/mach.h>
+#include <mach/task.h>
+#include <mach/semaphore.h>
+#include <sys/semaphore.h>
+#include <errno.h>
+#include <time.h>
 #else
 #include <pthread.h>
 #include <semaphore.h>
@@ -44,9 +52,13 @@ public:
 private:
 #if defined(WIN32)
 	HANDLE m_hSemaphore;
+#elif __MACH__
+	semaphore_t m_semaphore;
 #else
 	sem_t m_semaphore;
 #endif
+    int semcount;
 };
 
+
 #endif /* JSEMAPHORE_H_ */
diff --git a/src/jthread/pthread/jevent.cpp b/src/jthread/pthread/jevent.cpp
index 26a6fb05c..6a45a37d2 100644
--- a/src/jthread/pthread/jevent.cpp
+++ b/src/jthread/pthread/jevent.cpp
@@ -29,6 +29,19 @@
 
 #define UNUSED(expr) do { (void)(expr); } while (0)
 
+#ifdef __MACH__
+#undef sem_t
+#define sem_t semaphore_t
+#undef sem_init
+#define sem_init(s, p, c) semaphore_create(mach_task_self(), (s), 0, (c))
+#undef sem_wait
+#define sem_wait(s) semaphore_wait(*(s))
+#undef sem_post
+#define sem_post(s) semaphore_signal(*(s))
+#undef sem_destroy
+#define sem_destroy(s) semaphore_destroy(mach_task_self(), *(s))
+#endif
+
 Event::Event() {
 	int sem_init_retval = sem_init(&sem, 0, 0);
 	assert(sem_init_retval == 0);
diff --git a/src/jthread/pthread/jsemaphore.cpp b/src/jthread/pthread/jsemaphore.cpp
index ee1431065..f6d7f022f 100644
--- a/src/jthread/pthread/jsemaphore.cpp
+++ b/src/jthread/pthread/jsemaphore.cpp
@@ -20,13 +20,33 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include <errno.h>
 #include <sys/time.h>
 #include "jthread/jsemaphore.h"
+#ifdef __MACH__
+#include <unistd.h>
+#endif
 
 #define UNUSED(expr) do { (void)(expr); } while (0)
 
+#ifdef __MACH__
+#undef sem_t
+#undef sem_init
+#undef sem_wait
+#undef sem_post
+#undef sem_destroy
+#define sem_t             semaphore_t
+#define sem_init(s, p, c) semaphore_create(mach_task_self(), (s), 0, (c))
+#define sem_wait(s)       semaphore_wait(*(s))
+#define sem_post(s)       semaphore_signal(*(s))
+#define sem_destroy(s)    semaphore_destroy(mach_task_self(), *(s))
+pthread_mutex_t semcount_mutex;
+#endif
+
 JSemaphore::JSemaphore() {
 	int sem_init_retval = sem_init(&m_semaphore,0,0);
 	assert(sem_init_retval == 0);
 	UNUSED(sem_init_retval);
+#ifdef __MACH__
+	semcount = 0;
+#endif
 }
 
 JSemaphore::~JSemaphore() {
@@ -45,16 +65,32 @@ void JSemaphore::Post() {
 	int sem_post_retval = sem_post(&m_semaphore);
 	assert(sem_post_retval == 0);
 	UNUSED(sem_post_retval);
+#ifdef __MACH__
+	pthread_mutex_lock(&semcount_mutex);
+	semcount++;
+	pthread_mutex_unlock(&semcount_mutex);
+#endif
 }
 
 void JSemaphore::Wait() {
 	int sem_wait_retval = sem_wait(&m_semaphore);
 	assert(sem_wait_retval == 0);
 	UNUSED(sem_wait_retval);
+#ifdef __MACH__
+	pthread_mutex_lock(&semcount_mutex);
+	semcount--;
+	pthread_mutex_unlock(&semcount_mutex);
+#endif
 }
 
 bool JSemaphore::Wait(unsigned int time_ms) {
+#ifdef __MACH__
+	mach_timespec_t waittime;
+	waittime.tv_sec = time_ms / 1000;
+	waittime.tv_nsec = 1000000 * (time_ms % 1000);
+#else
 	struct timespec waittime;
+#endif
 	struct timeval now;
 
 	if (gettimeofday(&now, NULL) == -1) {
@@ -62,15 +98,26 @@ bool JSemaphore::Wait(unsigned int time_ms) {
 		return false;
 	}
 
+#ifndef __MACH__
 	waittime.tv_nsec = ((time_ms % 1000) * 1000 * 1000) + (now.tv_usec * 1000);
 	waittime.tv_sec  = (time_ms / 1000) + (waittime.tv_nsec / (1000*1000*1000)) + now.tv_sec;
 	waittime.tv_nsec %= 1000*1000*1000;
+#endif
 
 	errno = 0;
-	int sem_wait_retval = sem_timedwait(&m_semaphore,&waittime);
+#ifdef __MACH__
+	int sem_wait_retval = semaphore_timedwait(m_semaphore, waittime);
+#else
+	int sem_wait_retval = sem_timedwait(&m_semaphore, &waittime);
+#endif
 
 	if (sem_wait_retval == 0)
 	{
+#ifdef __MACH__
+		pthread_mutex_lock(&semcount_mutex);
+		semcount--;
+		pthread_mutex_unlock(&semcount_mutex);
+#endif
 		return true;
 	}
 	else {
@@ -81,10 +128,14 @@ bool JSemaphore::Wait(unsigned int time_ms) {
 }
 
 int JSemaphore::GetValue() {
-
 	int retval = 0;
-	sem_getvalue(&m_semaphore,&retval);
-
+#ifdef __MACH__
+	pthread_mutex_lock(&semcount_mutex);
+	retval = semcount;
+	pthread_mutex_unlock(&semcount_mutex);
+#else
+	sem_getvalue(&m_semaphore, &retval);
+#endif
 	return retval;
 }
 
diff --git a/src/porting.cpp b/src/porting.cpp
index d1e3cdd70..3c2a5c824 100644
--- a/src/porting.cpp
+++ b/src/porting.cpp
@@ -25,10 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "porting.h"
 
-#if defined(__APPLE__)
-	#include <mach-o/dyld.h>
-	#include "CoreFoundation/CoreFoundation.h"
-#elif defined(__FreeBSD__)
+#if defined(__FreeBSD__)
 	#include <sys/types.h>
 	#include <sys/sysctl.h>
 #elif defined(_WIN32)
diff --git a/src/porting.h b/src/porting.h
index 383d4377a..b5a5d00f2 100644
--- a/src/porting.h
+++ b/src/porting.h
@@ -123,6 +123,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #define PADDING(x, y) ((ALIGNOF(y) - ((uintptr_t)(x) & (ALIGNOF(y) - 1))) & (ALIGNOF(y) - 1))
 
+#if defined(__APPLE__)
+	#include <mach-o/dyld.h>
+	#include <CoreFoundation/CoreFoundation.h>
+#endif
+
 namespace porting
 {
 
@@ -220,9 +225,13 @@ void initIrrlicht(irr::IrrlichtDevice * );
 	}
 	
 #else // Posix
-	#include <sys/time.h>
-	#include <time.h>
-	
+#include <sys/time.h>
+#include <time.h>
+#ifdef __MACH__
+#include <mach/clock.h>
+#include <mach/mach.h>
+#endif
+
 	inline u32 getTimeS()
 	{
 		struct timeval tv;
@@ -247,7 +256,18 @@ void initIrrlicht(irr::IrrlichtDevice * );
 	inline u32 getTimeNs()
 	{
 		struct timespec ts;
+		// from http://stackoverflow.com/questions/5167269/clock-gettime-alternative-in-mac-os-x
+#ifdef __MACH__ // OS X does not have clock_gettime, use clock_get_time
+		clock_serv_t cclock;
+		mach_timespec_t mts;
+		host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
+		clock_get_time(cclock, &mts);
+		mach_port_deallocate(mach_task_self(), cclock);
+		ts.tv_sec = mts.tv_sec;
+		ts.tv_nsec = mts.tv_nsec;
+#else
 		clock_gettime(CLOCK_REALTIME, &ts);
+#endif
 		return ts.tv_sec * 1000000000 + ts.tv_nsec;
 	}