First cut at reviving the External Core tools

[ghc-hetmet.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 9175078..cd8b0ff 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -819,6 +819,23 @@ AC_ARG_ENABLE(dotnet,
 )
 AC_SUBST(DotnetSupport)
 
+dnl ** Mac OS X: explicit deployment target
+dnl --------------------------------------------------------------
+AC_ARG_WITH([macosx-deployment-target],
+[AC_HELP_STRING([--with-macosx-deployment-target=VERSION],
+        [Build for Mac OS VERSION and higher  (default= version of build host)])],
+[FP_MACOSX_DEPLOYMENT_TARGET="$withval"
+ if test "x$TargetOS_CPP-$TargetVendor_CPP" != "xdarwin-apple"; then
+   # ignore everywhere, but on Mac OS
+   AC_MSG_WARN([--macosx-deployment-target is only available on Mac OS X])
+   FP_MACOSX_DEPLOYMENT_TARGET=none
+ fi],
+[FP_MACOSX_DEPLOYMENT_TARGET=none]
+)
+FP_CHECK_MACOSX_DEPLOYMENT_TARGET
+AC_SUBST(MACOSX_DEPLOYMENT_VERSION)
+AC_SUBST(MACOSX_DEPLOYMENT_SDK)
+
 dnl --------------------------------------------------------------
 dnl End of configure script option section
 dnl --------------------------------------------------------------