fix for llvm 10.0.0
diff --git a/GNUmakefile.llvm b/GNUmakefile.llvm
index 2bb0263..cc28695 100644
--- a/GNUmakefile.llvm
+++ b/GNUmakefile.llvm
@@ -357,7 +357,7 @@
 	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@ $(LDFLAGS)
 
 ./afl-cc: src/afl-cc.c instrumentation/afl-common.o
-	$(CC) $(CLANG_CFL) $(CFLAGS) $(CPPFLAGS) $< instrumentation/afl-common.o -o $@ -DLLVM_MAJOR=$(LLVM_MAJOR) $(LDFLAGS) -DCFLAGS_OPT=\"$(CFLAGS_OPT)\"
+	$(CC) $(CLANG_CFL) $(CFLAGS) $(CPPFLAGS) $< instrumentation/afl-common.o -o $@ -DLLVM_MINOR=$(LLVM_MINOR) -DLLVM_MAJOR=$(LLVM_MAJOR) $(LDFLAGS) -DCFLAGS_OPT=\"$(CFLAGS_OPT)\"
 	@ln -sf afl-cc ./afl-c++
 	@ln -sf afl-cc ./afl-gcc
 	@ln -sf afl-cc ./afl-g++
diff --git a/src/afl-cc.c b/src/afl-cc.c
index 46468dd..a1c1d67 100644
--- a/src/afl-cc.c
+++ b/src/afl-cc.c
@@ -38,6 +38,12 @@
 #if !defined(LLVM_MAJOR)
   #define LLVM_MAJOR 0
 #endif
+#if (LLVM_MINOR - 0 == 0)
+  #undef LLVM_MINOR
+#endif
+#if !defined(LLVM_MINOR)
+  #define LLVM_MINOR 0
+#endif
 
 static u8 * obj_path;                  /* Path to runtime libraries         */
 static u8 **cc_params;                 /* Parameters passed to the real CC  */