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reduce the differences between the s4u_async examples
[simgrid.git] / FindSimGrid.cmake
index 9a1cf4f..e92af15 100644 (file)
@@ -1,86 +1,60 @@
-#IF YOU HAVE INSTALL SIMGRID IN A SPECIAL DIRECTORY
-#YOU CAN SPECIFY SIMGRID_ROOT OR GRAS_ROOT
-
-# TO CALL THIS FILE USE
-       #set(CMAKE_MODULE_PATH 
-       #${CMAKE_MODULE_PATH}
-       #${CMAKE_HOME_DIRECTORY}/buildtools/Cmake/Modules
-       #)
-
-find_library(HAVE_SIMGRID_LIB
-    NAME simgrid
-    HINTS
-    $ENV{LD_LIBRARY_PATH}
-    $ENV{GRAS_ROOT}
-       $ENV{SIMGRID_ROOT}
-    PATH_SUFFIXES lib64 lib
-    PATHS
-    /opt
-    /opt/local
-    /opt/csw
-    /sw
-    /usr
+# Cmake macro to search for the SimGrid library. 
+
+# Copyright (c) 2016. The SimGrid Team (version 20161210).
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the license (GNU LGPL) which comes with this package.
+
+# The user can hint a path using the SimGrid_PATH option.
+#
+# Once done, the following will be defined:
+#  
+#  SimGrid_INCLUDE_DIR - the SimGrid include directories
+#  SimGrid_LIBRARY - link your simulator against it to use SimGrid
+#
+# Afterward, you should probably do the following:
+#
+#  include_directories("${SimGrid_INCLUDE_DIR}" SYSTEM)
+#  target_link_libraries(your-simulator ${SimGrid_LIBRARY})
+#
+# This could be improved in many ways (patches welcome):
+#  - Not finding SimGrid is fatal. But who would want to 
+#    overcome such a desperate situation anyway? ;)
+#  - No way to specify a minimal version
+#  - No proper find_package() integration
+
+set(SimGrid_PATH ${SimGrid_PATH} CACHE PATH "Path to SimGrid library and include")
+find_path(SimGrid_INCLUDE_DIR
+  NAMES simgrid_config.h
+  HINTS ${SimGrid_PATH}/include /usr/include /usr/local/include /opt/simgrid/include
 )
 )
-
-find_path(HAVE_GRAS_H gras.h
-    HINTS
-    $ENV{GRAS_ROOT}
-       $ENV{SIMGRID_ROOT}
-    PATH_SUFFIXES include
-    PATHS
-    /opt
-    /opt/local
-    /opt/csw
-    /sw
-    /usr
+find_library(SimGrid_LIBRARY
+  NAMES simgrid
+  HINTS ${SimGrid_PATH}/lib /usr/lib /usr/local/lib /opt/simgrid/lib
 )
 )
+mark_as_advanced(SimGrid_INCLUDE_DIR)
+mark_as_advanced(SimGrid_LIBRARY)
 
 
-find_program(HAVE_TESH
-       NAMES tesh
-       HINTS
-       $ENV{GRAS_ROOT}
-       $ENV{SIMGRID_ROOT}
-       PATH_SUFFIXES bin
-       PATHS
-       /opt
-       /opt/local
-       /opt/csw
-       /sw
-       /usr
-)
+if (NOT EXISTS "${SimGrid_INCLUDE_DIR}")
+  message(FATAL_ERROR "Unable to find SimGrid header file. Please point the SimGrid_PATH variable to the installation directory.")
+endif ()
+if (NOT EXISTS "${SimGrid_LIBRARY}")
+  message(FATAL_ERROR "Unable to find SimGrid library. Please point the SimGrid_PATH variable to the installation directory.")
+endif ()
 
 
-find_program(HAVE_GRAS_STUB
-       NAMES gras_stub_generator
-       HINTS
-       $ENV{GRAS_ROOT}
-       $ENV{SIMGRID_ROOT}
-       PATH_SUFFIXES bin
-       PATHS
-       /opt
-       /opt/local
-       /opt/csw
-       /sw
-       /usr
-)
+# Extract the actual path
+if (NOT "$SimGrid_INCLUDE_DIR" STREQUAL "${SimGrid_PATH}/include")
+      string(REGEX REPLACE "(.*)/include" "\\1" SimGrid_PATH "${SimGrid_INCLUDE_DIR}")
+endif()
 
 
-message(STATUS "Looking for lib SimGrid")
-if(HAVE_SIMGRID_LIB)
-message(STATUS "Looking for lib SimGrid - found")
-else(HAVE_SIMGRID_LIB)
-message(STATUS "Looking for lib SimGrid - not found")
-endif(HAVE_SIMGRID_LIB)
+# Extract the actual version number
+file(READ "${SimGrid_INCLUDE_DIR}/simgrid_config.h" _SimGrid_CONFIG_H_CONTENTS)
+set(_SimGrid_VERSION_REGEX ".*#define SIMGRID_VERSION_STRING \"SimGrid version ([^\"]*)\".*")
+if ("${_SimGrid_CONFIG_H_CONTENTS}" MATCHES "${_SimGrid_VERSION_REGEX}")
+      string(REGEX REPLACE "${_SimGrid_VERSION_REGEX}" "\\1" SimGrid_VERSION "${_SimGrid_CONFIG_H_CONTENTS}")
+endif ("${_SimGrid_CONFIG_H_CONTENTS}" MATCHES "${_SimGrid_VERSION_REGEX}")
+  
 
 
-message(STATUS "Looking for gras.h")
-if(HAVE_GRAS_H)
-message(STATUS "Looking for gras.h - found")
-else(HAVE_GRAS_H)
-message(STATUS "Looking for gras.h - not found")
-endif(HAVE_GRAS_H)
+message("-- SimGrid found in ${SimGrid_PATH} (version ${SimGrid_VERSION})")
 
 
-if(HAVE_TESH)
-message(STATUS "Found Tesh: ${HAVE_TESH}")
-endif(HAVE_TESH)
 
 
-if(HAVE_GRAS_STUB)
-message(STATUS "Found gras_stub_generator: ${HAVE_GRAS_STUB}")
-endif(HAVE_GRAS_STUB)
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