add support for 10.15 SDK

Author: devernay

README.md

@@ -18,7 +18,9 @@ I made the script XcodeLegacy.sh to extract these components (the links work if
 [Xcode 7.3.1](https://developer.apple.com/devcenter/download.action?path=/Developer_Tools/Xcode_7.3.1/Xcode_7.3.1.dmg) (10.11 SDK),
 [Xcode 8.3.3](https://download.developer.apple.com/Developer_Tools/Xcode_8.3.3/Xcode8.3.3.xip) (10.12 SDK),
 [Xcode 9.4.1](https://download.developer.apple.com/Developer_Tools/Xcode_9.4.1/Xcode_9.4.1.xip) (10.13 SDK),
-[Xcode 10.3](https://download.developer.apple.com/Developer_Tools/Xcode_10.3/Xcode_10.3.xip) (10.14 SDK) and install them in Xcode 4-12:
+[Xcode 10.3](https://download.developer.apple.com/Developer_Tools/Xcode_10.3/Xcode_10.3.xip) (10.14 SDK)
+[Xcode 11.7](https://download.developer.apple.com/Developer_Tools/Xcode_11.7/Xcode_11.7.xip) (10.15 SDK)
+and install them in Xcode 4-12:
 
 - GCC 4.0, GCC 4.2 and LLVM GCC 4.2 compilers
 - GCC 4.0, GCC 4.2 and LLVM GCC 4.2 Xcode plugins
@@ -61,6 +63,7 @@ Optionally, one of the following options can be passed as the *first* argument t
 * `-osx1012` : only install OSX 10.12 SDK
 * `-osx1013` : only install OSX 10.13 SDK
 * `-osx1014` : only install OSX 10.14 SDK
+* `-osx1015` : only install OSX 10.15 SDK
 * `-path=path` : install to custom Xcode at 'path'
 
 
@@ -124,6 +127,7 @@ Here are the latest versions of Xcode that are known to /run/ on each OS X versi
 - [Xcode 8.3.3](https://download.developer.apple.com/Developer_Tools/Xcode_8.3.3/Xcode_8.3.3.xip) on macOS 10.12 (Sierra), please see note on linking below. (\*\*)
 - [Xcode 9.4.1](https://developer.apple.com/devcenter/download.action?path=/Developer_Tools/Xcode_9.4.1/Xcode_9.4.1.xip) on macOS 10.13 (High Sierra), please see note on linking below. (\*\*)
 - [Xcode 10.3](https://developer.apple.com/devcenter/download.action?path=/Developer_Tools/Xcode_10.3/Xcode_10.3.xip) on macOS 10.14 (Mojave), please see note on linking below.
+- [Xcode 11.7](https://developer.apple.com/devcenter/download.action?path=/Developer_Tools/Xcode_11.7/Xcode_11.7.xip) on macOS 10.15 (Catalina).
 
 (\*) These Xcode versions were released before 26.03.2012 and may cause an "An unknown installation error" during installation, which is due to an expired certificate. Installing these may require disabling network time sync and setting the date to 01.01.2012 before installing. Network time sync may be re-enabled after install. See [this stackexchange question](https://apple.stackexchange.com/questions/45841/xcode-4-2-snow-leopard-doesnt-install) for more details.
 
@@ -226,4 +230,5 @@ History
 - 2.2 (10/01/2019): Xcode 10 dropped 10.13 SDK, get it from Xcode 9.4.1
 - 2.3 (27/03/2019): Added an option to install in a custom Xcode path
 - 2.4 (10/02/2020): Fix for buildpackages if Xcode 8 or Xcode 9 xip have expired signatures. Also now check for stray Xcode.app if extracting Xcode 9.4.1, Fixes for changed download paths and archive names.
-- 2.5 (01/05/2021): Xcode 11 dropped 10.14 SDK, get it from Xcode 10.3
+- 2.5 (31/04/2021): Xcode 11 dropped 10.14 SDK, get it from Xcode 10.3
+- 2.6 (01/05/2021): Xcode 12 dropped 10.15 SDK, get it from Xcode 11.7

XcodeLegacy.sh

@@ -30,6 +30,8 @@
 # 2.2 (12/02/2019): Added support for using macOS High Sierra 10.13 SDK from Xcode 9.4.1 for use on Xcode 10/macOS 10.14 Mojave, also changed source of OS X 10.12 SDK to Xcode 8.3.3
 # 2.3 (27/03/2019): Added an option to install in a custom Xcode path
 # 2.4 (10/02/2020): Fix for buildpackages if Xcode 8 or Xcode 9 xip have expired signatures. Also now check for stray Xcode.app if extracting Xcode 9.4.1, Fixes for changed download paths and archive names.
+# 2.5 (31/04/2021): Xcode 11 dropped 10.14 SDK, get it from Xcode 10.3
+# 2.6 (01/05/2021): Xcode 12 dropped 10.15 SDK, get it from Xcode 11.7
 
 #set -e # Exit immediately if a command exits with a non-zero status
 #set -u # Treat unset variables as an error when substituting.
@@ -47,6 +49,7 @@ osx1011=0
 osx1012=0
 osx1013=0
 osx1014=0
+osx1015=0
 gotoption=0
 error=0
 
@@ -112,6 +115,11 @@ while [[ $error = 0 ]] && [[ $# -gt 1 ]]; do
             osx1014=1
             gotoption=1
             shift
+            ;;
+		-osx1015)
+            osx1015=1
+            gotoption=1
+            shift
             ;;
         -path=*)
             CUSTOM_APP="${1#*=}"
@@ -138,6 +146,7 @@ if [ $gotoption = 0 ]; then
     osx1012=1
     osx1013=1
 	osx1014=1
+	osx1015=1
 fi
 
 if [ $# != 1 ]; then
@@ -167,6 +176,7 @@ if [ $# != 1 ]; then
     echo " -osx1012   : only install OSX 10.12 SDK"
     echo " -osx1013   : only install OSX 10.13 SDK"
 	echo " -osx1014   : only install OSX 10.14 SDK"
+	echo " -osx1015   : only install OSX 10.15 SDK"
     echo " -path=path : A alternative Xcode folder to use. Default is /Application/Xcode.app"
     echo "              e.g. -path=/Application/Xcode_8.3.1.app"
     echo "Note that these can be combined. For example, to build and install the 10.9"
@@ -233,6 +243,7 @@ xc7="$(( osx1011 != 0 ))"
 xc8="$(( osx1012 != 0 ))"
 xc9="$(( osx1013 != 0 ))"
 xc10="$(( osx1014 != 0 ))"
+xc11="$(( osx1015 != 0 ))"
 
 # The sole argument is the macOS version (e.g. 10.12)
 installSDK() {
@@ -377,6 +388,14 @@ case $1 in
             echo " https://download.developer.apple.com/Developer_Tools/Xcode_10.3/Xcode_10.3.xip"
             echo "and then run this script from within the same directory as the downloaded file"
             missingdmg=1
+        fi
+		if [ "$xc11" = 1 ] && [ ! -f Xcode_11.7.xip ]; then
+            echo "*** You should download Xcode 11.7. Login to:"
+            echo " https://developer.apple.com/downloads/"
+            echo "then download from:"
+            echo " https://download.developer.apple.com/Developer_Tools/Xcode_11.7/Xcode_11.7.xip"
+            echo "and then run this script from within the same directory as the downloaded file"
+            missingdmg=1
         fi
         if [ "$missingdmg" = 1 ]; then
             echo "*** at least one Xcode distribution is missing, cannot build packages - exiting now"
@@ -689,6 +708,18 @@ EOF
                 ( (cd "Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer" || exit; rm SDKs/MacOSX10.14.sdk; mv SDKs/MacOSX.sdk SDKs/MacOSX10.14.sdk; tar cf - SDKs/MacOSX10.14.sdk) | gzip -c > Xcode1014SDK.tar.gz) && echo "*** Created Xcode1014SDK.tar.gz in directory $(pwd)"
                 rm -rf Xcode.app
             fi
+        fi
+		if [ "$xc11" = 1 ]; then
+            if [ "$osx1015" = 1 ]; then
+                echo "Extracting Mac OS X 10.15 SDK from Xcode 11.7. Be patient - this will take some time"
+                open Xcode_11.7.xip
+                while [ ! -d Xcode.app ]; do
+                    sleep 5
+                done
+                sleep 5
+                ( (cd "Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer" || exit; rm SDKs/MacOSX10.15.sdk; mv SDKs/MacOSX.sdk SDKs/MacOSX10.15.sdk; tar cf - SDKs/MacOSX10.15.sdk) | gzip -c > Xcode1015SDK.tar.gz) && echo "*** Created Xcode1015SDK.tar.gz in directory $(pwd)"
+                rm -rf Xcode.app
+            fi
         fi
         rmdir "$MNTDIR"
         ;;
@@ -1107,6 +1138,10 @@ SPEC_EOF
             installSDK 10.14
         fi
 
+		if [ "$osx1015" = 1 ]; then
+            installSDK 10.15
+        fi
+
         if [ "$compilers" = 1 ]; then
             if [ -f /usr/bin/gcc-4.0 ]; then
                 #echo "*** Not installing xcode_3.2.6_gcc4.0.pkg (found installed in /usr/bin/gcc-4.0, uninstall first to force install)"
@@ -1241,6 +1276,9 @@ SPEC_EOF
 		if [ "$osx1014" = 1 ]; then
             rm Xcode1014SDK.tar.gz 2>/dev/null
         fi
+		if [ "$osx1015" = 1 ]; then
+            rm Xcode1015SDK.tar.gz 2>/dev/null
+        fi
 
         ;;
 
@@ -1357,6 +1395,10 @@ SPEC_EOF
             i=10.14
             [ -f "$SDKDIR/SDKs/MacOSX${i}.sdk/legacy" ] && rm -rf "$SDKDIR/SDKs/MacOSX${i}.sdk"
         fi
+		if [ "$osx1015" = 1 ]; then
+            i=10.15
+            [ -f "$SDKDIR/SDKs/MacOSX${i}.sdk/legacy" ] && rm -rf "$SDKDIR/SDKs/MacOSX${i}.sdk"
+        fi
 
         if [ "$compilers" = 1 ]; then
             if [ "$GCCINSTALLDIR/usr/bin/gcc" -ef "$GCCINSTALLDIR/usr/bin/clang" ]; then