Moved shared/static library detection to separate module

[alexxy/gromacs.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8cb3353b726a4b9c465de8007aa96a35a70263e2..42da569ad0a51a38d213a4d98a95531e0909eb95 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -363,87 +363,12 @@ endif()
 ########################################################################
 include(gmxManageMPI)
 
+
 ########################################################################
-# Shared/static library settings
+#Process shared/static library settings
 ########################################################################
-# Determine the defaults (this block has no effect if the variables have
-# already been set)
-if(APPLE OR CYGWIN OR ${CMAKE_SYSTEM_NAME} MATCHES "Linux|.*BSD")
-    # Maybe Solaris should be here? Patch this if you know!
-    SET(SHARED_LIBS_DEFAULT ON)
-elseif(WIN32 OR ${CMAKE_SYSTEM_NAME} MATCHES "BlueGene")
-    # Support for shared libs on native Windows is a bit new. Its
-    # default might change later if/when we sort things out. Also,
-    # Cray should go here. What variable value can detect it?
-    SET(SHARED_LIBS_DEFAULT OFF)
-else()
-    if (NOT DEFINED BUILD_SHARED_LIBS)
-        message(STATUS "Defaulting to building static libraries")
-    endif()
-    SET(SHARED_LIBS_DEFAULT OFF)
-endif()
-if (GMX_PREFER_STATIC_LIBS)
-    if (NOT DEFINED BUILD_SHARED_LIBS AND SHARED_LIBS_DEFAULT)
-        message("Searching for static libraries requested, so the GROMACS libraries will also be built statically (BUILD_SHARED_LIBS=OFF)")
-    endif()
-    set(SHARED_LIBS_DEFAULT OFF)
-endif()
-set(GMX_PREFER_STATIC_LIBS_DEFAULT OFF)
-if (WIN32 AND NOT CYGWIN AND NOT BUILD_SHARED_LIBS)
-    set(GMX_PREFER_STATIC_LIBS_DEFAULT ON)
-endif()
+include(gmxManageSharedLibraries)
 
-# Declare the user-visible options
-option(BUILD_SHARED_LIBS "Enable shared libraries (can be problematic e.g. with MPI, or on some HPC systems)" ${SHARED_LIBS_DEFAULT})
-if (UNIX)
-    set(GMX_PREFER_STATIC_LIBS_DESCRIPTION
-        "When finding libraries prefer static archives (it will only work if static versions of external dependencies are available and found)")
-elseif (WIN32 AND NOT CYGWIN)
-    set(GMX_PREFER_STATIC_LIBS_DESCRIPTION
-        "When finding libraries prefer static system libraries (MT instead of MD)")
-endif()
-option(GMX_PREFER_STATIC_LIBS "${GMX_PREFER_STATIC_LIBS_DESCRIPTION}"
-       ${GMX_PREFER_STATIC_LIBS_DEFAULT})
-mark_as_advanced(GMX_PREFER_STATIC_LIBS)
-
-# Act on the set values
-if (UNIX AND GMX_PREFER_STATIC_LIBS)
-    if(BUILD_SHARED_LIBS)
-        # Warn the user about the combination. But don't overwrite the request.
-        message(WARNING "Searching for static libraries requested, and building shared Gromacs libraries requested. This might cause problems linking later.")
-    endif()
-    # On Linux .a is the static library suffix, on Mac OS X .lib can also
-    # be used, so we'll add both to the preference list.
-    SET(CMAKE_FIND_LIBRARY_SUFFIXES ".lib;.a" ${CMAKE_FIND_LIBRARY_SUFFIXES})
-endif()
-IF( WIN32 AND NOT CYGWIN)
-  if (NOT BUILD_SHARED_LIBS)
-      if(NOT GMX_PREFER_STATIC_LIBS)
-          message(WARNING "Shared system libraries requested, and static Gromacs libraries requested.")
-      endif()
-  else()
-      message(FATAL_ERROR "BUILD_SHARED_LIBS=ON not yet working for Windows in the master branch")
-      if(GMX_PREFER_STATIC_LIBS)
-          #this combination segfaults (illegal passing of file handles)
-          message(FATAL_ERROR "Static system libraries requested, and shared Gromacs libraries requested.")
-      endif()
-      add_definitions(-DUSE_VISIBILITY -DTMPI_USE_VISIBILITY)
-      set(PKG_CFLAGS "$PKG_CFLAGS -DUSE_VISIBILITY -DTMPI_USE_VISIBILITY")
-  endif()
-
-  IF (GMX_PREFER_STATIC_LIBS)
-      #Only setting Debug and Release flags. Others configurations are current not used.
-      STRING(REPLACE /MD /MT CMAKE_C_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE})
-      STRING(REPLACE /MD /MT CMAKE_C_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})
-      STRING(REPLACE /MD /MT CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
-      STRING(REPLACE /MD /MT CMAKE_CXX_FLAGS_DEBUG ${CMAKE_CXX_FLAGS_DEBUG})
-  ENDIF()
-  IF( CMAKE_C_COMPILER_ID MATCHES "Intel" )
-    if(BUILD_SHARED_LIBS) #not sure why incremental building with shared libs doesn't work
-        STRING(REPLACE "/INCREMENTAL:YES" "" CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS})
-    endif()
-  ENDIF()
-ENDIF()
 
 ########################################################################
 # Find external packages                                               #