Updated makefile for xcode projgen.

makefile

@@ -44,8 +44,8 @@ projgen: ## Generate project files for all configurations.
 	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --gcc=mingw-gcc       gmake
 	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --gcc=linux-gcc       gmake
 	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --gcc=osx             gmake
-	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --xcode=osx           xcode8
-	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --xcode=ios           xcode8
+	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --xcode=osx           xcode9
+	$(GENIE) --with-tools --with-combined-examples --with-shared-lib --xcode=ios           xcode9
 	$(GENIE)              --with-combined-examples --with-shared-lib --gcc=freebsd         gmake
 	$(GENIE)              --with-combined-examples                   --gcc=android-arm     gmake
 	$(GENIE)              --with-combined-examples                   --gcc=android-arm64   gmake