diff --git a/CMakeLists.txt b/CMakeLists.txt
index 162c22b32..f5b228975 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,16 +66,16 @@ if(NOT DEFINED WEECHAT_LIBDIR)
   set(WEECHAT_LIBDIR ${LIBDIR}/${PROJECT_NAME})
 endif()
 
-if(NOT DEFINED SHAREDIR)
-  set(SHAREDIR ${CMAKE_INSTALL_PREFIX}/share)
+if(NOT DEFINED DATAROOTDIR)
+  set(DATAROOTDIR ${CMAKE_INSTALL_PREFIX}/share)
 endif()
 
 if(NOT DEFINED MANDIR)
-  set(MANDIR ${SHAREDIR}/man)
+  set(MANDIR ${DATAROOTDIR}/man)
 endif()
 
 if(NOT DEFINED LOCALEDIR)
-  set(LOCALEDIR ${SHAREDIR}/locale)
+  set(LOCALEDIR ${DATAROOTDIR}/locale)
 endif()
 
 if(DEFINED INCLUDEDIR)
@@ -297,12 +297,12 @@ if(CYGWIN)
     ${CMAKE_CURRENT_SOURCE_DIR}/Contributing.adoc
     ${CMAKE_CURRENT_SOURCE_DIR}/README.adoc
     ${CMAKE_CURRENT_SOURCE_DIR}/ReleaseNotes.adoc
-    DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME}
+    DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME}
   )
 endif()
 
 # desktop file
-install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/weechat.desktop DESTINATION ${SHAREDIR}/applications)
+install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/weechat.desktop DESTINATION ${DATAROOTDIR}/applications)
 
 # packages
 set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Fast, light and extensible chat client")
diff --git a/config.h.cmake b/config.h.cmake
index e160f0c6c..41d47ce21 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -14,7 +14,7 @@
 #define PACKAGE_NAME "@PROJECT_NAME@"
 #define PACKAGE_STRING "@PKG_STRING@"
 #define WEECHAT_LIBDIR "@WEECHAT_LIBDIR@"
-#define WEECHAT_SHAREDIR "@SHAREDIR@"
+#define WEECHAT_SHAREDIR "@DATAROOTDIR@"
 #define LOCALEDIR "@LOCALEDIR@"
 #define WEECHAT_HOME "@WEECHAT_HOME@"
 #define CA_FILE "@CA_FILE@"
diff --git a/doc/cs/CMakeLists.txt b/doc/cs/CMakeLists.txt
index 56f19956f..5b418d206 100644
--- a/doc/cs/CMakeLists.txt
+++ b/doc/cs/CMakeLists.txt
@@ -66,6 +66,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.cs.html"
   )
   add_custom_target(doc-quickstart-cs ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.cs.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.cs.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.cs.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/de/CMakeLists.txt b/doc/de/CMakeLists.txt
index 08f5ddb8e..d7b744a13 100644
--- a/doc/de/CMakeLists.txt
+++ b/doc/de/CMakeLists.txt
@@ -71,7 +71,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_user.de.html"
   )
   add_custom_target(doc-user-de ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.de.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.de.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.de.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # scripting guide
   add_custom_command(
@@ -84,7 +84,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_scripting.de.html"
   )
   add_custom_target(doc-scripting-de ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.de.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.de.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.de.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # FAQ
   add_custom_command(
@@ -97,7 +97,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_faq.de.html"
   )
   add_custom_target(doc-faq-de ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.de.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.de.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.de.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # quickstart
   add_custom_command(
@@ -110,7 +110,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.de.html"
   )
   add_custom_target(doc-quickstart-de ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.de.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.de.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.de.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # tester's guide
   add_custom_command(
@@ -123,6 +123,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_tester.de.html"
   )
   add_custom_target(doc-tester-de ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.de.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.de.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.de.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/en/CMakeLists.txt b/doc/en/CMakeLists.txt
index 42ee60c56..f6050857d 100644
--- a/doc/en/CMakeLists.txt
+++ b/doc/en/CMakeLists.txt
@@ -72,7 +72,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_user.en.html"
   )
   add_custom_target(doc-user-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # plugin API reference
   add_custom_command(
@@ -86,7 +86,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_plugin_api.en.html"
   )
   add_custom_target(doc-plugin-api-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # scripting guide
   add_custom_command(
@@ -99,7 +99,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_scripting.en.html"
   )
   add_custom_target(doc-scripting-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # FAQ
   add_custom_command(
@@ -112,7 +112,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_faq.en.html"
   )
   add_custom_target(doc-faq-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # quickstart
   add_custom_command(
@@ -125,7 +125,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.en.html"
   )
   add_custom_target(doc-quickstart-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # tester's guide
   add_custom_command(
@@ -138,7 +138,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_tester.en.html"
   )
   add_custom_target(doc-tester-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # relay protocol
   add_custom_command(
@@ -151,7 +151,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_relay_protocol.en.html"
   )
   add_custom_target(doc-relay-protocol-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # developer's guide
   add_custom_command(
@@ -164,6 +164,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_dev.en.html"
   )
   add_custom_target(doc-dev-en ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.en.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.en.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.en.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/es/CMakeLists.txt b/doc/es/CMakeLists.txt
index 856430087..4013d0b09 100644
--- a/doc/es/CMakeLists.txt
+++ b/doc/es/CMakeLists.txt
@@ -30,6 +30,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.es.html"
   )
   add_custom_target(doc-quickstart-es ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.es.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.es.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.es.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/fr/CMakeLists.txt b/doc/fr/CMakeLists.txt
index 01bf40a16..080e556e0 100644
--- a/doc/fr/CMakeLists.txt
+++ b/doc/fr/CMakeLists.txt
@@ -72,7 +72,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_user.fr.html"
   )
   add_custom_target(doc-user-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # plugin API reference
   add_custom_command(
@@ -86,7 +86,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_plugin_api.fr.html"
   )
   add_custom_target(doc-plugin-api-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # scripting guide
   add_custom_command(
@@ -99,7 +99,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_scripting.fr.html"
   )
   add_custom_target(doc-scripting-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # FAQ
   add_custom_command(
@@ -112,7 +112,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_faq.fr.html"
   )
   add_custom_target(doc-faq-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # quickstart
   add_custom_command(
@@ -125,7 +125,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.fr.html"
   )
   add_custom_target(doc-quickstart-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # tester's guide
   add_custom_command(
@@ -138,7 +138,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_tester.fr.html"
   )
   add_custom_target(doc-tester-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # relay protocol
   add_custom_command(
@@ -151,7 +151,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_relay_protocol.fr.html"
   )
   add_custom_target(doc-relay-protocol-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # developer's guide
   add_custom_command(
@@ -164,6 +164,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_dev.fr.html"
   )
   add_custom_target(doc-dev-fr ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.fr.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.fr.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.fr.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/it/CMakeLists.txt b/doc/it/CMakeLists.txt
index ecccec2b9..7a0422c33 100644
--- a/doc/it/CMakeLists.txt
+++ b/doc/it/CMakeLists.txt
@@ -72,7 +72,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_user.it.html"
   )
   add_custom_target(doc-user-it ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.it.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.it.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.it.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # plugin API reference
   add_custom_command(
@@ -86,7 +86,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_plugin_api.it.html"
   )
   add_custom_target(doc-plugin-api-it ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.it.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.it.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.it.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # scripting guide
   add_custom_command(
@@ -99,7 +99,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_scripting.it.html"
   )
   add_custom_target(doc-scripting-it ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.it.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.it.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.it.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # FAQ
   add_custom_command(
@@ -112,7 +112,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_faq.it.html"
   )
   add_custom_target(doc-faq-it ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.it.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.it.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.it.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # quickstart
   add_custom_command(
@@ -125,7 +125,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.it.html"
   )
   add_custom_target(doc-quickstart-it ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.it.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.it.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.it.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # tester's guide
   add_custom_command(
@@ -138,6 +138,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_tester.it.html"
   )
   add_custom_target(doc-tester-it ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.it.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.it.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.it.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/ja/CMakeLists.txt b/doc/ja/CMakeLists.txt
index ffefff934..ee4c76a13 100644
--- a/doc/ja/CMakeLists.txt
+++ b/doc/ja/CMakeLists.txt
@@ -72,7 +72,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_user.ja.html"
   )
   add_custom_target(doc-user-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # plugin API reference
   add_custom_command(
@@ -86,7 +86,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_plugin_api.ja.html"
   )
   add_custom_target(doc-plugin-api-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_plugin_api.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # scripting guide
   add_custom_command(
@@ -99,7 +99,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_scripting.ja.html"
   )
   add_custom_target(doc-scripting-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # FAQ
   add_custom_command(
@@ -112,7 +112,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_faq.ja.html"
   )
   add_custom_target(doc-faq-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # quickstart
   add_custom_command(
@@ -125,7 +125,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.ja.html"
   )
   add_custom_target(doc-quickstart-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # tester's guide
   add_custom_command(
@@ -138,7 +138,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_tester.ja.html"
   )
   add_custom_target(doc-tester-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # relay protocol
   add_custom_command(
@@ -151,7 +151,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_relay_protocol.ja.html"
   )
   add_custom_target(doc-relay-protocol-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_relay_protocol.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # developer's guide
   add_custom_command(
@@ -164,6 +164,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_dev.ja.html"
   )
   add_custom_target(doc-dev-ja ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.ja.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.ja.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_dev.ja.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/pl/CMakeLists.txt b/doc/pl/CMakeLists.txt
index 6cbaf67f8..d6ae72dd9 100644
--- a/doc/pl/CMakeLists.txt
+++ b/doc/pl/CMakeLists.txt
@@ -71,7 +71,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_user.pl.html"
   )
   add_custom_target(doc-user-pl ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.pl.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.pl.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_user.pl.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # scripting guide
   add_custom_command(
@@ -84,7 +84,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_scripting.pl.html"
   )
   add_custom_target(doc-scripting-pl ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.pl.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.pl.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_scripting.pl.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # FAQ
   add_custom_command(
@@ -97,7 +97,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_faq.pl.html"
   )
   add_custom_target(doc-faq-pl ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.pl.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.pl.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_faq.pl.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # quickstart
   add_custom_command(
@@ -110,7 +110,7 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.pl.html"
   )
   add_custom_target(doc-quickstart-pl ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.pl.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.pl.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.pl.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
   # tester's guide
   add_custom_command(
@@ -123,6 +123,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_tester.pl.html"
   )
   add_custom_target(doc-tester-pl ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.pl.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.pl.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_tester.pl.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/doc/ru/CMakeLists.txt b/doc/ru/CMakeLists.txt
index 42fa6d6e8..8e2991c64 100644
--- a/doc/ru/CMakeLists.txt
+++ b/doc/ru/CMakeLists.txt
@@ -66,6 +66,6 @@ if(ENABLE_DOC)
     COMMENT "Building weechat_quickstart.ru.html"
   )
   add_custom_target(doc-quickstart-ru ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.ru.html)
-  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.ru.html DESTINATION ${SHAREDIR}/doc/${PROJECT_NAME})
+  install(FILES ${CMAKE_CURRENT_BINARY_DIR}/weechat_quickstart.ru.html DESTINATION ${DATAROOTDIR}/doc/${PROJECT_NAME})
 
 endif()
diff --git a/icons/CMakeLists.txt b/icons/CMakeLists.txt
index 68a23f5a9..1c410caac 100644
--- a/icons/CMakeLists.txt
+++ b/icons/CMakeLists.txt
@@ -18,5 +18,5 @@
 #
 
 foreach(size 16 32 64 128 256 512)
-  install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/${size}x${size}/weechat.png DESTINATION ${SHAREDIR}/icons/hicolor/${size}x${size}/apps)
+  install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/${size}x${size}/weechat.png DESTINATION ${DATAROOTDIR}/icons/hicolor/${size}x${size}/apps)
 endforeach()