Allow build on macOS.

Author: MarcusCalhoun-Lopez

source/Paths.cpp

@@ -26,6 +26,8 @@
 #include <iostream>
 #if BOOST_OS_WINDOWS != 0
 #include <windows.h>
+#elif BOOST_OS_MACOS != 0
+#include <mach-o/dyld.h>
 #else
 #include <unistd.h>
 #endif
@@ -63,6 +65,17 @@ static std::string getExecutablePath() {
 		buffer.resize(buffer.size() * 2);
 	}
 }
+#elif BOOST_OS_MACOS != 0
+static std::string getExecutablePath() {
+	uint32_t bufferSize = 4096;
+	std::vector<char> buffer;
+	buffer.resize(bufferSize);
+	while (1) {
+		if (_NSGetExecutablePath(buffer.data(), &bufferSize) == 0)
+			return buffer.data();
+		buffer.resize(bufferSize);
+	}
+}
 #else
 #error getExecutablePath not implemented for current OS
 #endif