make/autoconf/flags.m4

@@ -1111,14 +1111,15 @@
         -Wsign-compare -Wundef -Wunused-function -Wformat=2"
   fi
 
   # Additional macosx handling
   if test "x$OPENJDK_$1_OS" = xmacosx; then
-    # MACOSX_VERSION_MIN is the c++ and ld is -mmacosx-version-min argument. The expected
-    # format is X.Y.Z. It's hard-coded to the minimum OSX version on which the
-    # JDK can be built and makes the linked binaries compatible even if built on
-    # a newer version of the OS.
+    # MACOSX_VERSION_MIN specifies the lowest version of Macosx that the built
+    # binaries should be compatible with, even if compiled on a newer version
+    # of the OS. It currently has a hard coded value. Setting this also limits
+    # exposure to API changes in header files. Bumping this is likely to
+    # require code changes to build.
     MACOSX_VERSION_MIN=10.7.0
     AC_SUBST(MACOSX_VERSION_MIN)
 
     # Setting --with-macosx-version-max=<version> makes it an error to build or
     # link to macosx APIs that are newer than the given OS version. The expected

@@ -1148,10 +1149,11 @@
         -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
     $2LDFLAGS_JDK="[$]$2LDFLAGS_JDK -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
     $2JVM_CFLAGS="[$]$2JVM_CFLAGS \
         -DMAC_OS_X_VERSION_MIN_REQUIRED=\$(subst .,,\$(MACOSX_VERSION_MIN)) \
         -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
+    $2ARFLAGS="$2$ARFLAGS -mmacosx-version-min=\$(MACOSX_VERSION_MIN)"
 
     if test -n "$MACOSX_VERSION_MAX"; then
         $2COMMON_CCXXFLAGS_JDK="[$]$2COMMON_CCXXFLAGS_JDK \
             -DMAC_OS_X_VERSION_MAX_ALLOWED=\$(subst .,,\$(MACOSX_VERSION_MAX))"
         $2JVM_CFLAGS="[$]$2JVM_CFLAGS \