fluxcapacitor os x patch WIP: https://idea.popcount.org/2013-07-19-how-to-sleep-a-million-years/

osx.patch

diff --git a/Makefile b/Makefile
index 60d0021..6a8d7a1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,8 @@
-LIBNAME=fluxcapacitor_preload.so
-TESTLIBNAME=fluxcapacitor_test.so
+LIBNAME=fluxcapacitor_preload.dylib
+TESTLIBNAME=fluxcapacitor_test.dylib
 LOADERNAME=fluxcapacitor
 
-LDOPTS+=-lrt -ldl -rdynamic
+LDOPTS+=-ldl -rdynamic
 COPTS+=$(CFLAGS) -g -ggdb -Wall -Wextra -Wno-unused-parameter -O3 -fPIC
 
 TESTLIB_FILES=src/testlib.c
@@ -16,11 +16,11 @@ build: $(TESTLIBNAME) $(LIBNAME) $(LOADERNAME)
 
 $(TESTLIBNAME): Makefile $(TESTLIB_FILES)
 	$(CC) $(COPTS) $(TESTLIB_FILES)	\
-		-fPIC -shared -Wl,-soname,$(TESTLIBNAME) -o $(TESTLIBNAME)
+		-dynamiclib -Wl,-headerpad_max_install_names,-undefined,dynamic_lookup,-compatibility_version,1.0,-current_version,1.0,-install_name,/usr/local/lib/$(TESTLIBNAME) -o $(TESTLIBNAME)
 
 $(LIBNAME): Makefile $(LIB_FILES)
 	$(CC) $(COPTS) $(LIB_FILES) $(LDOPTS) \
-		-fPIC -shared -Wl,-soname,$(LIBNAME) -o $(LIBNAME)
+		-dynamiclib -Wl,-headerpad_max_install_names,-undefined,dynamic_lookup,-compatibility_version,1.0,-current_version,1.0,-install_name,/usr/local/lib/$(LIBNAME) -o $(LIBNAME)
 
 $(LOADERNAME): Makefile $(LOADER_FILES)
 	$(CC) $(COPTS) $(LOADER_FILES) $(LDOPTS) \
diff --git a/src/preload.c b/src/preload.c
index f25d1ed..830ffdf 100644
--- a/src/preload.c
+++ b/src/preload.c
@@ -47,7 +47,7 @@ int clock_gettime(clockid_t clk_id, struct timespec *tp) {
 
 /* Translate to clock_gettime() */
 PUBLIC
-int gettimeofday(struct timeval *tv, struct timezone *tz) {
+int gettimeofday(struct timeval *tv, void *tz) {
 	long a = 0, b = 0;
 	if (tv) {
 		struct timespec ts;
@@ -97,6 +97,9 @@ int clock_nanosleep(clockid_t clk_id, int flags,
 	clock_gettime(CLOCK_REALTIME, &tmp);
 	u64 now = TIMESPEC_NSEC(&tmp);
 	u64 end, diff;
+#ifdef __APPLE__ && !defined(TIMER_ABSTIME)
+#define TIMER_ABSTIME 0
+#endif
 	if (flags & TIMER_ABSTIME) {
 		end = TIMESPEC_NSEC(request);
 		if (end > now) {
diff --git a/src/wrapper.c b/src/wrapper.c
index c616aa8..2d16650 100644
--- a/src/wrapper.c
+++ b/src/wrapper.c
@@ -2,7 +2,9 @@
 #include <stdlib.h>
 #include <errno.h>
 #include <time.h>
+#ifndef __APPLE__
 #include <sys/prctl.h>
+#endif
 
 #include "list.h"
 #include "types.h"
@@ -58,6 +60,7 @@ void wrapper_syscall_enter(struct child *child, struct trace_sysarg *sysarg) {
 		type = TYPE_TIMESPEC; value = sysarg->arg1;
 		break;
 
+#ifndef __APPLE__
 	/* Anti-debugging machinery. Prevent processes from disabling ptrace. */
 	case __NR_prctl:
 		if (sysarg->arg1 == PR_SET_DUMPABLE && sysarg->arg2 == 0) {
@@ -67,6 +70,7 @@ void wrapper_syscall_enter(struct child *child, struct trace_sysarg *sysarg) {
 			trace_setregs(child->process, sysarg);
 		}
 		break;
+#endif
 	}
 
 	if (!type)