Terrain height probe (#186)

* ignore binaries

* Add terrain probe

* requested changes part 1

* try mac os build check

* Revert "try mac os build check"

This reverts commit 46fa8adde4f825c3a7f2a8bea7f543ad55a79765.

* update debug message label

xpcPlugin/xpcPlugin.xcodeproj/project.pbxproj

@@ -230,6 +230,10 @@
 				MACH_O_TYPE = mh_bundle;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				ONLY_ACTIVE_ARCH = YES;
+				OTHER_CPLUSPLUSFLAGS = (
+					"$(OTHER_CFLAGS)",
+					"-DXPLM200",
+				);
 				OTHER_LDFLAGS = (
 					"$(OTHER_LDFLAGS)",
 					"-Wl,-exported_symbol",
@@ -278,6 +282,10 @@
 				);
 				MACH_O_TYPE = mh_bundle;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
+				OTHER_CPLUSPLUSFLAGS = (
+					"$(OTHER_CFLAGS)",
+					"-DXPLM200",
+				);
 				OTHER_LDFLAGS = (
 					"$(OTHER_LDFLAGS)",
 					"-Wl,-exported_symbol",