Update build scripts to build for Mac Catalyst.

Makefile

@@ -7,6 +7,7 @@ all:
 	@$(MAKE) macos
 	@$(MAKE) ios
 	@$(MAKE) iossim
+	@$(MAKE) maccat
 	@$(MAKE) tvos
 	@$(MAKE) tvossim
 
@@ -15,6 +16,7 @@ all-debug:
 	@$(MAKE) macos-debug
 	@$(MAKE) ios-debug
 	@$(MAKE) iossim-debug
+	@$(MAKE) maccat-debug
 	@$(MAKE) tvos-debug
 	@$(MAKE) tvossim-debug
 
@@ -42,6 +44,14 @@ iossim:
 iossim-debug:
 	xcodebuild build -quiet -project "$(XC_PROJ)" -scheme "$(XC_SCHEME) (iOS only)" -destination "generic/platform=iOS Simulator" -configuration "Debug"
 
+.PHONY: maccat
+maccat:
+	xcodebuild build -quiet -project "$(XC_PROJ)" -scheme "$(XC_SCHEME) (iOS only)" -destination "generic/platform=macOS,variant=Mac Catalyst"
+
+.PHONY: maccat-debug
+maccat-debug:
+	xcodebuild build -quiet -project "$(XC_PROJ)" -scheme "$(XC_SCHEME) (iOS only)" -destination "generic/platform=macOS,variant=Mac Catalyst" -configuration "Debug"
+
 .PHONY: tvos
 tvos:
 	xcodebuild build -quiet -project "$(XC_PROJ)" -scheme "$(XC_SCHEME) (tvOS only)"

README.md

@@ -120,6 +120,7 @@ for which to build the external libraries. The platform choices include:
 	--macos 
 	--ios 
 	--iossim 
+	--maccat 
 	--tvos 
 	--tvossim
 
@@ -205,6 +206,7 @@ from the command line. The following `make` targets are provided:
 	make macos
 	make ios
 	make iossim
+	make maccat
 	make tvos
 	make tvossim
 	
@@ -212,6 +214,7 @@ from the command line. The following `make` targets are provided:
 	make macos-debug
 	make ios-debug
 	make iossim-debug
+	make maccat-debug
 	make tvos-debug
 	make tvossim-debug
 	

fetchDependencies

@@ -17,6 +17,9 @@
 #      --iossim
 #              Build the external libraries for the iOS Simulator platform.
 #
+#      --maccat
+#              Build the external libraries for the Mac Catalyst platform.
+#
 #      --tvos
 #              Build the external libraries for the tvOS platform.
 #
@@ -24,7 +27,7 @@
 #              Build the external libraries for the tvOS Simulator platform.
 #
 #      --all
-#              Equivalent to specifying [--macos --ios --iossim --tvos --tvossim].
+#              Equivalent to specifying [--macos --ios --iossim --maccat --tvos --tvossim].
 #              Results in one XCFramework for each external library, each containing
 #              binaries for all supported platforms.
 #
@@ -88,6 +91,7 @@ set -e
 BLD_NONE=""
 BLD_IOS=""
 BLD_IOS_SIM=""
+BLD_MAC_CAT=""
 BLD_TVOS=""
 BLD_TVOS_SIM=""
 BLD_MACOS=""
@@ -113,6 +117,10 @@ while (( "$#" )); do
          BLD_IOS_SIM="Y"
          shift 1
          ;;
+       --maccat)
+         BLD_MAC_CAT="Y"
+         shift 1
+         ;;
        --tvos)
          BLD_TVOS="Y"
          shift 1
@@ -128,6 +136,7 @@ while (( "$#" )); do
        --all)
          BLD_IOS="Y"
          BLD_IOS_SIM="Y"
+         BLD_MAC_CAT="Y"
          BLD_TVOS="Y"
          BLD_TVOS_SIM="Y"
          BLD_MACOS="Y"
@@ -388,22 +397,27 @@ echo Please be patient on first build
 
 # Build an Xcode scheme for an OS and platform
 # 1 - OS
-# 2 - platform
+# 2 - Platform
+# 3 - Destination (Optional. Defaults to same as platform)
 function build_impl() {
     BLD_SPECIFIED="Y"
 	XC_OS=${1}
 	XC_PLTFM=${2}
+	if [ "${3}" != "" ]; then
+		XC_DEST=${3};
+	else
+		XC_DEST=${XC_PLTFM};
+	fi
 
 	XC_SCHEME="${EXT_DEPS}-${XC_OS}"
 	XC_LCL_DD_PATH="${XC_DD_PATH}/Intermediates/${XC_PLTFM}"
-	XC_DEST="generic/platform=${XC_PLTFM}"
 
-	echo Building external libraries for ${XC_PLTFM}
+	echo Building external libraries for platform ${XC_PLTFM} and destination ${XC_DEST}
 
 	xcodebuild 													\
 		-project "${XC_PROJ}"									\
 		-scheme "${XC_SCHEME}"									\
-		-destination "${XC_DEST}"								\
+		-destination "generic/platform=${XC_DEST}"				\
 		-configuration "${XC_CONFIG}"							\
 		-enableAddressSanitizer "${XC_USE_ASAN}"				\
 		-enableThreadSanitizer "${XC_USE_TSAN}"					\
@@ -420,9 +434,9 @@ function build_impl() {
 # 2 - platform
 function build() {
 	if [ "$XC_USE_BCKGND" != "" ]; then
-		build_impl "${1}" "${2}" &
+		build_impl "${1}" "${2}" "${3}" &
 	else
-		build_impl "${1}" "${2}"
+		build_impl "${1}" "${2}" "${3}"
 	fi
 }
 
@@ -449,6 +463,10 @@ if [ "$BLD_IOS_SIM" != "" ]; then
 	build "iOS" "iOS Simulator"
 fi
 
+if [ "$BLD_MAC_CAT" != "" ]; then
+	build "iOS" "Mac Catalyst" "macOS,variant=Mac Catalyst"
+fi
+
 if [ "$BLD_TVOS" != "" ]; then
 	build "tvOS" "tvOS"
 fi