Fix cmake usage under macOS

local.env

@@ -101,13 +101,13 @@ else
 fi
 
 if [ "${MACOS_UNIVERSAL_10_15}" -eq 1 ]; then
-    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES=arm64;x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.15"
+    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES='arm64;x86_64' -DCMAKE_OSX_DEPLOYMENT_TARGET=10.15 -DCMAKE_OSX_SYSROOT=macosx"
 elif [ "${MACOS_UNIVERSAL}" -eq 1 ]; then
-    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES=arm64;x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.12"
+    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES='arm64;x86_64' -DCMAKE_OSX_DEPLOYMENT_TARGET=10.12 -DCMAKE_OSX_SYSROOT=macosx"
 elif [ "${MACOS_UNIVERSAL}" -eq 1 ]; then
-    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES=arm64;x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.12"
+    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES='arm64;x86_64' -DCMAKE_OSX_DEPLOYMENT_TARGET=10.12 -DCMAKE_OSX_SYSROOT=macosx"
 elif [ "${MACOS}" -eq 1 ]; then
-    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES=x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.8"
+    CMAKE="${CMAKE} -DCMAKE_OSX_ARCHITECTURES=x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=10.8 -DCMAKE_OSX_SYSROOT=macosx"
 elif [ "${WIN32}" -eq 1 ]; then
     CMAKE="${CMAKE} -DCMAKE_RC_COMPILER=${WINDRES}"
 fi

setup/functions.sh

@@ -348,6 +348,7 @@ function build_cmake() {
         fi
         extraconfrules+=" -DCMAKE_OSX_ARCHITECTURES=${OSX_ARCHS}"
         extraconfrules+=" -DCMAKE_OSX_DEPLOYMENT_TARGET=${OSX_TARGET}"
+        extraconfrules+=" -DCMAKE_OSX_SYSROOT=macosx"
     elif [ "${WIN32}" -eq 1 ]; then
         extraconfrules+=" -DCMAKE_RC_COMPILER=${WINDRES}"
     fi