diff -rupN a/doomsday/build/build.pro b/doomsday/build/build.pro
--- a/doomsday/build/build.pro	2013-01-25 21:10:34.527416378 -0600
+++ b/doomsday/build/build.pro	2013-01-25 21:54:28.198490959 -0600
@@ -13,7 +13,7 @@ QMAKE_STRIP = true
 
 # Update the PK3 files.
 !deng_nopackres {
-    system(cd $$PWD/scripts/ && python packres.py --quiet \"$$OUT_PWD/..\")
+    system(cd $$PWD/scripts/ && python2 packres.py --quiet \"$$OUT_PWD/..\")
 }
 
 # Install the launcher.
diff -rupN a/doomsday/libdeng2/libdeng2.pro b/doomsday/libdeng2/libdeng2.pro
--- a/doomsday/libdeng2/libdeng2.pro	2013-01-25 21:10:34.510416591 -0600
+++ b/doomsday/libdeng2/libdeng2.pro	2013-01-25 21:52:33.008931027 -0600
@@ -34,7 +34,7 @@ win32 {
     TARGET_EXT = .dll
 
     # For Windows, an .rc file is generated for embedded version info in the binary.
-    system(python "$$PWD/res/win32/generate_rc.py" "$$PWD/res/win32/deng2.rc" \
+    system(python2 "$$PWD/res/win32/generate_rc.py" "$$PWD/res/win32/deng2.rc" \
         $$LIBDENG2_MAJOR_VERSION $$LIBDENG2_MINOR_VERSION $$LIBDENG2_PATCHLEVEL \
         $$LIBDENG2_RELEASE_LABEL $$DENG_BUILD)
     RC_FILE = res/win32/deng2.rc
diff -rupN a/doomsday/versions.pri b/doomsday/versions.pri
--- a/doomsday/versions.pri	2013-01-25 21:10:34.527416378 -0600
+++ b/doomsday/versions.pri	2013-01-25 21:51:46.088517612 -0600
@@ -6,14 +6,14 @@
 # be on the system path.
 
 defineReplace(findVersion) {
-    info = $$system(python \"$$PWD/../distrib/build_version.py\" \"$$PWD/$$1\")
+    info = $$system(python2 \"$$PWD/../distrib/build_version.py\" \"$$PWD/$$1\")
     # Result: versionbase buildnum reltype winver
     # Just use the base version (x.y.z) for now.
     return($$member(info, 0))
 }
 
 defineReplace(dengReleaseType) {
-    info = $$system(python \"$$PWD/../distrib/build_version.py\"  \"$$PWD/engine/api/dd_version.h\")
+    info = $$system(python2 \"$$PWD/../distrib/build_version.py\"  \"$$PWD/engine/api/dd_version.h\")
     return($$member(info, 2))
 }