Keeping cmake-based version.gen generating in history

[quassel.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index ba3948c..a5cf417 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,14 +3,16 @@
 # -DBUILD=<string> : Select binaries to build. <string> may contain any combination
 #                    of "core", "client", "mono" or "all".
 # -DQT=/path/to/qt : Choose a Qt4 installation to use instead of the system Qt4
+# -DSTATIC=1       : Enable static building of Quassel, most useful with a static Qt.
 # -DSPUTDEV        : Do not use.
+#
+# NOTE: You need to remove CMakeCache.txt if you plan to change any of these values!
 
 project(QuasselIRC)
 
 cmake_minimum_required(VERSION 2.4.5)
 
 set(QT_MIN_VERSION "4.4.0")
-find_package(Qt4 REQUIRED)
 
 # By default, we build all binaries
 if(NOT DEFINED BUILD)
@@ -43,6 +45,7 @@ endif(BUILD MATCHES all)
 if(DEFINED QT)
   # FindQt4 will look for the qmake binary in $PATH, so we just prepend the Qt dir
   set(ENV{PATH} ${QT}/bin:$ENV{PATH})
+  #SET(QT_QMAKE_EXECUTABLE ${QT}/bin/qmake CACHE FILEPATH "" FORCE)
 endif(DEFINED QT)
 
 # Enable mostly b0rked stuff (new ChatView), do not enable this unless you know what you do...
@@ -50,6 +53,9 @@ if(SPUTDEV)
   add_definitions(-DSPUTDEV)
 endif(SPUTDEV)
 
+# Now that we have the correct $PATH, lets find Qt!
+find_package(Qt4 REQUIRED)
+
 # Add needed subdirs
 add_subdirectory(src/common)
 include_directories(src/common)
@@ -71,6 +77,48 @@ qt4_add_resources(RES_I18N ${CMAKE_SOURCE_DIR}/i18n/i18n.qrc)
 qt4_add_resources(RES_ICONS ${CMAKE_SOURCE_DIR}/src/icons/icons.qrc)
 qt4_add_resources(RES_SQL ${CMAKE_SOURCE_DIR}/src/core/sql.qrc)
 
+# Set global buildflags
+if(DEFINED STATIC)
+  set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc ${CMAKE_EXE_LINKER_FLAGS}")
+  link_directories(${CMAKE_BINARY_DIR}/staticlibs)
+endif(DEFINED STATIC)
+
+# Now see if we can generate a decent version.gen.
+# First, check if we have a git repo and git-describe gives reasonable output...
+# NOTE: This may fail if we have .git but not git binaries installed...
+if(EXISTS ${CMAKE_SOURCE_DIR}/.git)
+  execute_process(COMMAND git-describe --long
+                  WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+                  RESULT_VARIABLE GIT_RESULT
+                  OUTPUT_VARIABLE GIT_OUTPUT)
+  if(GIT_RESULT OR ${GIT_OUTPUT} MATCHES "fatal")
+    set(GIT_OUTPUT )
+  endif(GIT_RESULT OR ${GIT_OUTPUT} MATCHES "fatal")
+endif(EXISTS ${CMAKE_SOURCE_DIR}/.git)
+
+# Now if we got a valid revision, let's use it...
+# A git-describe string has the form "version-commitcount-gdeadbeef"
+if(GIT_OUTPUT)
+  string(REGEX REPLACE "(.*)-0-g[0-9a-f]+" "\\1" VERSION_STRING ${GIT_OUTPUT})
+  string(REGEX REPLACE "(.*)-([0-9]+)-g([0-9a-f]+)\n" "\\1:git-\\3+\\2" VERSION_STRING ${VERSION_STRING})
+endif(GIT_OUTPUT)
+
+# If got something valid out of it, write it to the file
+if(VERSION_STRING)
+  file(WRITE ${CMAKE_BINARY_DIR}/src/common/version.gen
+       "quasselGeneratedVersion = \"${VERSION_STRING}\";\n")
+elseif(VERSION_STRING)
+  # Maybe we have a version.dist?
+  if(EXISTS ${CMAKE_SOURCE_DIR}/version.dist)
+    file(READ ${CMAKE_SOURCE_DIR}/version.dist VERSION_DIST)
+    file(WRITE ${CMAKE_BINARY_DIR}/src/common/version.gen ${VERSION_DIST})
+  elseif(EXISTS ${CMAKE_SOURCE_DIR}/version.dist)
+    # Ah well, just touch it then
+    file(WRITE ${CMAKE_BINARY_DIR}/src/common/version.gen "\n")
+  endif(EXISTS ${CMAKE_SOURCE_DIR}/version.dist)
+endif(VERSION_STRING)
+
+
 # Here comes the dirty part. Our targets need different Qt4 modules, i.e. different libs
 # and defines. We can't simply include UseQt4 several times, since definitions add up.
 # We workaround this by only setting up QtCore first, and adding additional stuff later.
@@ -80,13 +128,14 @@ include_directories(${QT_INCLUDES})
 
 # This macro sets variables for additional Qt modules.
 macro(setup_qt4_variables)
-  set(QUASSEL_QT_DEFINITIONS )
+  set(QUASSEL_QT_DEFINITIONS ${QT_DEFINITIONS})
   set(QUASSEL_QT_LIBRARIES )
   foreach(qtmod ${ARGV})
     # This needs to be a string, not a list, otherwise set_target_properties screws up...
     set(QUASSEL_QT_DEFINITIONS "${QUASSEL_QT_DEFINITIONS} -DQT_${qtmod}_LIB")
     set(QUASSEL_QT_LIBRARIES ${QUASSEL_QT_LIBRARIES} ${QT_QT${qtmod}_LIBRARY} ${QT_${qtmod}_LIB_DEPENDENCIES})
   endforeach(qtmod ${ARGV})
+  set(QUASSEL_QT_LIBRARIES ${QUASSEL_QT_LIBRARIES} ${QT_LIBRARIES})
 endmacro(setup_qt4_variables)
 
 # Now we have everything, so just glue the right pieces together :)