From: Matthias Maier Date: Wed, 1 Apr 2015 16:41:05 +0000 (+0200) Subject: Documentation: Update CMake part to reflect the latest changes X-Git-Tag: v8.3.0-rc1~326^2~1 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99aa902959352adbcb9fb1b87ff613e37c0170fe;p=dealii.git Documentation: Update CMake part to reflect the latest changes --- diff --git a/doc/users/cmakelists.html b/doc/users/cmakelists.html index 782e6d3d14..a3e204cdb1 100644 --- a/doc/users/cmakelists.html +++ b/doc/users/cmakelists.html @@ -66,7 +66,7 @@ 
 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.8)
 
-FIND_PACKAGE(deal.II 8.0 REQUIRED
+FIND_PACKAGE(deal.II 8.3 REQUIRED
   HINTS ${DEAL_II_DIR} ../ ../../ $ENV{DEAL_II_DIR}
   )
 DEAL_II_INITIALIZE_CACHED_VARIABLES()
@@ -87,16 +87,15 @@ DEAL_II_SETUP_TARGET(mycode)
 

   Next, we find our deal.II installation with the help of the
   FIND_PACKAGE command. In this case requiring at least
-  version 8.0, which is the first version using CMake. The
-  HINTS are a list of directories where the install directory
-  of deal.II is likely to be found. First, the location possibly defined in
-  the CMake variable DEAL_II_DIR is considered. After that, we
-  check whether we are in a subdirectory (first and second level) of the
-  deal.II installation and otherwise use the environment variable
-  DEAL_II_DIR. If all of these hints fail the default system
-  locations /usr/ and /usr/local/ are considered.
-  The list after HINTS can be changed according to your
-  preferences.
+  version 8.3. The HINTS are a list of directories where the
+  install directory of deal.II is likely to be found. First, the location
+  possibly defined in the CMake variable DEAL_II_DIR is
+  considered. After that, we check whether we are in a subdirectory (first
+  and second level) of the deal.II installation and otherwise use the
+  environment variable DEAL_II_DIR. If all of these hints fail
+  the default system locations /usr/ and
+  /usr/local/ are considered. The list after
+  HINTS can be changed according to your preferences.
 

 
 

@@ -114,8 +113,9 @@ DEAL_II_SETUP_TARGET(mycode)
 

   Finally, the last two lines define the executable that is to be produced
   and its source code. The 
-  DEAL_II_SETUP_TARGET macro will set up necessary
-  include directories, compile definitions and the link interface.
+  DEAL_II_SETUP_TARGET macro will set up necessary include
+  directories, compile flags, compile definitions, link flags and the link
+  interface.
 

 
 
@@ -445,19 +445,52 @@ source file you have to touch a CMakeLists.txt file or to run
 
 
DEAL_II_SETUP_TARGET revisited

 

-The DEAL_II_SETUP_TARGET macro is responsible for setting up a
-target to compile and link against deal.II. It will append the
-INCLUDE_DIRECTORIES property with the location of the deal.II
-include directories, and the compile definitions and linker flags property
-COMPILE_DEFINITIONS and LINK_FLAGS by their
-respective values (depending on build type and available debug and/or
-optimized flavor of the library).
+  The DEAL_II_SETUP_TARGET macro is responsible for setting up
+  a target to compile and link against deal.II. It will append the
+  INCLUDE_DIRECTORIES property with the location of the
+  deal.II include directories, and append the properties
+  COMPILE_FLAGS, COMPILE_DEFINITIONS and
+  LINK_FLAGS by their respective values from the deal.II
+  configuration (depending on build type and available debug and/or
+  optimized flavor of the library).
+

+

+  Except in the case of an object library, the specified target will also
+  be set up to link against deal.II (and its transitive link interface) as
+  well.
 

+
 

-Except in the case of an object library, the specified target will be set
-up to link against deal.II (and its transitive link interface) as well.
+  Optionally, the DEAL_II_SETUP_TARGET macro takes an
+  additional argument DEBUG, or RELEASE, after
+  the target name to explicitly state the library flavor the target should
+  be set up for. If the parameter is omitted, the correct choice is deduced
+  from the current build type (with DEBUG taking precedence in
+  case of DebugRelease as build type).
 

 
+

+  Note: The flags that are added with DEAL_II_SETUP_TARGET to
+  the target come last in the final link compiler invocation, or linker
+  invocation. This means they take precedence over all flags defined via
+  globally via CMAKE_CXX_FLAGS, etc., or as a directory
+  property. If you wish to modify flags or preprocessor definitions set up
+  with DEAL_II_SETUP_TARGET modify on of the following
+  variables (see the section about deal.IIConfig.cmake for
+  details):
+
+DEAL_II_CXX_FLAGS
+DEAL_II_CXX_FLAGS_DEBUG
+DEAL_II_CXX_FLAGS_RELEASE
+DEAL_II_LINKER_FLAGS
+DEAL_II_LINKER_FLAGS_DEBUG
+DEAL_II_LINKER_FLAGS_RELEASE
+DEAL_II_USER_DEFINITIONS
+DEAL_II_USER_DEFINITIONS_DEBUG
+DEAL_II_USER_DEFINITIONS_RELEASE
+

+
 
 
 
DEAL_II_INITIALIZE_CACHED_VARIABLES revisited

@@ -477,15 +510,24 @@ The macro will set an uninitialized CMAKE_BUILD_TYPE variable
 to Debug (or Release if the debug library is not
 available). If CMAKE_BUILD_TYPE is specified it will
 automatically be reset if the given value is unsupported by the deal.II
-installation.
+installation (i.e., if it is not equal to Debug,
+Release, or DebugRelease).
 

 

-Furthermore, this macro sets the C++ compiler and the compile flags to
-default values (the same values that were used to compile deal.II itself).
-These are CMAKE_CXX_COMPILER and DEAL_II_CXX_FLAGS,
-as well as - depending on the configuration -
-DEAL_II_CXX_FLAGS_DEBUG, or DEAL_II_CXX_FLAGS_RELEASE, or
-both.
+Furthermore, this macro sets the C++ compiler to the one used for compiling
+the deal.II library. The variables will CMAKE_CXX_FLAGS,
+CMAKE_CXX_FLAGS_DEBUG, and
+CMAKE_CXX_FLAGS_RELEASE will be initialized with the empty
+string.
+

+
+

+Note: If you wish to override the flags and definitions set by the
+DEAL_II_SETUP_TARGET macro you have to override the
+corresponding DEAL_II_* variable instead. See the
+documentation of DEAL_II_SETUP_TARGET
+for further details.
 

 
 
@@ -761,6 +803,17 @@ DEAL_II_USER_DEFINITIONS         - compile definitions for all configurations
 DEAL_II_USER_DEFINITIONS_DEBUG   - _additional_ compile definitions for debug configuration
 DEAL_II_USER_DEFINITIONS_RELEASE - _additional_ compile definitions for release configuration
 
+#
+# Information about MPI runtime for the mpi implementation used in the
+# deal.II library
+#
+
+DEAL_II_MPIEXEC
+DEAL_II_MPIEXEC_NUMPROC_FLAG
+DEAL_II_MPIEXEC_PREFLAGS
+DEAL_II_MPIEXEC_POSTFLAGS
+
+
 DEAL_II_STATIC_EXECUTABLE        - true if the link interface is set up to
                                    compile resulting executables statically