Update Makefile

Author: bucanero

tools/geohot/Makefile

@@ -33,7 +33,7 @@ ifneq (,$(findstring CYGWIN,$(UNAME)))
 endif
 
 ifneq (,$(findstring Darwin,$(UNAME)))
-	SDK			:= /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk 
+	SDK			:= /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk 
 	OSXCFLAGS	:= -mmacosx-version-min=10.14 -arch x86_64
 	OSXCXXFLAGS	:=	$(OSXCFLAGS)
 	CXXFLAGS	+=	-fvisibility=hidden