VERSION comments and multiarch

quazip/quazip/quazip.pro

@@ -1,9 +1,33 @@
 TEMPLATE = lib
 CONFIG += qt warn_on
 QT -= gui
+
+# The ABI version.
+
 !win32:VERSION = 1.0.0
 
+# 1.0.0 is the first stable ABI.
+# The next binary incompatible change will be 2.0.0 and so on.
+# The existing QuaZIP policy on changing ABI requires to bump the
+# major version of QuaZIP itself as well. Note that there may be
+# other reasons for chaging the major version of QuaZIP, so
+# in case where there is a QuaZIP major version bump but no ABI change,
+# the VERSION variable will stay the same.
+
+# For example:
+
+# QuaZIP 1.0 is released after some 0.x, keeping binary compatibility.
+# VERSION stays 1.0.0.
+# Then some binary incompatible change is introduced. QuaZIP goes up to
+# 2.0, VERSION to 2.0.0.
+# And so on.
+
+
+# This one handles dllimport/dllexport directives.
 DEFINES += QUAZIP_BUILD
+
+# You'll need to define this one manually if using a build system other
+# than qmake or using QuaZIP sources directly in your project.
 CONFIG(staticlib): DEFINES += QUAZIP_STATIC
 
 # Input
@@ -12,7 +36,7 @@ include(quazip.pri)
 unix:!symbian {
     headers.path=$$PREFIX/include/quazip
     headers.files=$$HEADERS
-    target.path=$$PREFIX/lib
+    target.path=$$PREFIX/lib/$${LIB_ARCH}
     INSTALLS += headers target
 
 	OBJECTS_DIR=.obj