3 files changed, 7 insertions, 3 deletions
diff --git a/qxmpp.pri b/qxmpp.pri
index feb433b8..4879312d 100644
--- a/qxmpp.pri
+++ b/qxmpp.pri
@@ -37,3 +37,7 @@ symbian {
     QXMPP_LIBRARY_FILE = $${QXMPP_LIBRARY_DIR}/lib$${QXMPP_LIBRARY_NAME}.a
 }
 
+# Installation prefix
+isEmpty(PREFIX)  {
+    unix:PREFIX=/usr/local
+}
diff --git a/qxmpp.pro b/qxmpp.pro
index ead33bf5..71522af3 100644
--- a/qxmpp.pro
+++ b/qxmpp.pro
@@ -24,7 +24,7 @@ dist.depends = docs
 
 # Install rules
 htmldocs.files = doc/html
-htmldocs.path = $$[QT_INSTALL_PREFIX]/share/doc/qxmpp
+htmldocs.path = $$PREFIX/share/doc/qxmpp
 htmldocs.CONFIG += no_check_exist directory
 
 QMAKE_EXTRA_TARGETS += dist docs
diff --git a/src/src.pro b/src/src.pro
index db9d21c0..f163d288 100644
--- a/src/src.pro
+++ b/src/src.pro
@@ -181,8 +181,8 @@ SOURCES += \
 
 # Installation
 headers.files = $$INSTALL_HEADERS
-headers.path = $$[QT_INSTALL_PREFIX]/include/qxmpp
-target.path = $$[QT_INSTALL_LIBS]
+headers.path = $$PREFIX/include/qxmpp
+target.path = $$PREFIX/lib
 INSTALLS += headers target
 
 # pkg-config support