[87623] trunk/dports/lang/apple-gcc42/Portfile

[jeremyhu at macports.org]

Revision: 87623
          http://trac.macports.org/changeset/87623
Author:   jeremyhu at macports.org
Date:     2011-11-28 20:43:53 -0800 (Mon, 28 Nov 2011)
Log Message:
-----------
apple-gcc42: Bail out if libunwind-headers is installed

Modified Paths:
--------------
    trunk/dports/lang/apple-gcc42/Portfile

Modified: trunk/dports/lang/apple-gcc42/Portfile
===================================================================
--- trunk/dports/lang/apple-gcc42/Portfile	2011-11-29 02:29:07 UTC (rev 87622)
+++ trunk/dports/lang/apple-gcc42/Portfile	2011-11-29 04:43:53 UTC (rev 87623)
@@ -117,6 +117,17 @@
 	}
 }
 
+pre-build {
+    foreach {badport badfile} "libunwind-headers ${prefix}/include/unwind.h" {
+        if {[file exists ${badfile}]} {
+            ui_error "${name} cannot be built while ${badport} is active."
+            ui_error "Please deactivate ${badport} and try again."
+            ui_error "You can reactivate ${badport} again later."
+            return -code error "${badport} is installed"
+        }
+    }
+}
+
 # TODO: Use MacPorts dependencies
 build.env \
 	LIBRARY_PATH="/usr/lib" \
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