use at least macos 10.12

Author: isuruf

Tools/pixi-packages/build.sh

@@ -17,6 +17,18 @@ else
     exit 1
 fi
 
+# rattler-build by default set a target of 10.9
+# override it to at least 10.12
+case ${MACOSX_DEPLOYMENT_TARGET:-10.12} in
+    10.12|10.13|10.14|10.15|10.16)
+        ;;
+    10.*)
+        export MACOSX_DEPLOYMENT_TARGET=10.12
+        ;;
+    *)
+        ;;
+esac
+
 BUILD_DIR="../build_${PYTHON_VARIANT}"
 mkdir -p "${BUILD_DIR}"
 cd "${BUILD_DIR}"

Tools/pixi-packages/default/recipe.yaml

@@ -38,6 +38,9 @@ outputs:
     build:
       - ${{ compiler('c') }}
       - ${{ compiler('cxx') }}
+      # Note that we are not using stdlib arguments which means the packages
+      # are built for the build settings and are not relocatable to a different
+      # machine that has a older system version. (eg: macOS/glibc version)
       - make
       - pkg-config
       # configure script looks for llvm-ar for lto