--- build/make/configure.sh.orig	2019-02-09 23:18:41.000000000 -0800
+++ build/make/configure.sh	2019-02-09 23:29:38.000000000 -0800
@@ -767,37 +767,9 @@
 
     # detect tgt_os
     case "$gcctarget" in
-      *darwin10*)
+      *darwin*)
         tgt_isa=x86_64
-        tgt_os=darwin10
-        ;;
-      *darwin11*)
-        tgt_isa=x86_64
-        tgt_os=darwin11
-        ;;
-      *darwin12*)
-        tgt_isa=x86_64
-        tgt_os=darwin12
-        ;;
-      *darwin13*)
-        tgt_isa=x86_64
-        tgt_os=darwin13
-        ;;
-      *darwin14*)
-        tgt_isa=x86_64
-        tgt_os=darwin14
-        ;;
-      *darwin15*)
-        tgt_isa=x86_64
-        tgt_os=darwin15
-        ;;
-      *darwin16*)
-        tgt_isa=x86_64
-        tgt_os=darwin16
-        ;;
-      *darwin17*)
-        tgt_isa=x86_64
-        tgt_os=darwin17
+        tgt_os=darwin
         ;;
       x86_64*mingw32*)
         tgt_os=win64
@@ -890,58 +862,6 @@
       ;;
   esac
 
-  case ${toolchain} in
-    *-darwin8-*)
-      add_cflags  "-mmacosx-version-min=10.4"
-      add_ldflags "-mmacosx-version-min=10.4"
-      ;;
-    *-darwin9-*)
-      add_cflags  "-mmacosx-version-min=10.5"
-      add_ldflags "-mmacosx-version-min=10.5"
-      ;;
-    *-darwin10-*)
-      add_cflags  "-mmacosx-version-min=10.6"
-      add_ldflags "-mmacosx-version-min=10.6"
-      ;;
-    *-darwin11-*)
-      add_cflags  "-mmacosx-version-min=10.7"
-      add_ldflags "-mmacosx-version-min=10.7"
-      ;;
-    *-darwin12-*)
-      add_cflags  "-mmacosx-version-min=10.8"
-      add_ldflags "-mmacosx-version-min=10.8"
-      ;;
-    *-darwin13-*)
-      add_cflags  "-mmacosx-version-min=10.9"
-      add_ldflags "-mmacosx-version-min=10.9"
-      ;;
-    *-darwin14-*)
-      add_cflags  "-mmacosx-version-min=10.10"
-      add_ldflags "-mmacosx-version-min=10.10"
-      ;;
-    *-darwin15-*)
-      add_cflags  "-mmacosx-version-min=10.11"
-      add_ldflags "-mmacosx-version-min=10.11"
-      ;;
-    *-darwin16-*)
-      add_cflags  "-mmacosx-version-min=10.12"
-      add_ldflags "-mmacosx-version-min=10.12"
-      ;;
-    *-darwin17-*)
-      add_cflags  "-mmacosx-version-min=10.13"
-      add_ldflags "-mmacosx-version-min=10.13"
-      ;;
-    *-iphonesimulator-*)
-      add_cflags  "-miphoneos-version-min=${IOS_VERSION_MIN}"
-      add_ldflags "-miphoneos-version-min=${IOS_VERSION_MIN}"
-      iossim_sdk_dir="$(show_darwin_sdk_path iphonesimulator)"
-      if [ -d "${iossim_sdk_dir}" ]; then
-        add_cflags  "-isysroot ${iossim_sdk_dir}"
-        add_ldflags "-isysroot ${iossim_sdk_dir}"
-      fi
-      ;;
-  esac
-
   # Handle Solaris variants. Solaris 10 needs -lposix4
   case ${toolchain} in
     sparc-solaris-*)