Fix build of jar file with cmake >= 3.12 (try #2).

[simgrid.git] / buildtools / Cmake / MakeJava.cmake

diff --git a/buildtools/Cmake/MakeJava.cmake b/buildtools/Cmake/MakeJava.cmake
index a861c10..f7c69b4 100644 (file)
--- a/buildtools/Cmake/MakeJava.cmake
+++ b/buildtools/Cmake/MakeJava.cmake
@@ -2,43 +2,52 @@ cmake_minimum_required(VERSION 2.8.6)
 
 include(UseJava)
 
-# Rules to build libSG_java
+# Rules to build libsimgrid-java
 #
-add_library(SG_java SHARED ${JMSG_C_SRC})
-set_target_properties(SG_java PROPERTIES VERSION ${libSG_java_version})
+add_library(simgrid-java SHARED ${JMSG_C_SRC})
+set_target_properties(simgrid-java PROPERTIES VERSION ${libsimgrid-java_version})
 if (CMAKE_VERSION VERSION_LESS "2.8.8")
   include_directories(${JNI_INCLUDE_DIRS})
 
   message(WARNING "[Java] Try to workaround missing feature in older CMake.  You should better update CMake to version 2.8.8 or above.")
   get_directory_property(CHECK_INCLUDES INCLUDE_DIRECTORIES)
 else()
-  get_target_property(COMMON_INCLUDES SG_java INCLUDE_DIRECTORIES)
+  get_target_property(COMMON_INCLUDES simgrid-java INCLUDE_DIRECTORIES)
   if (COMMON_INCLUDES)
-    set_target_properties(SG_java PROPERTIES
+    set_target_properties(simgrid-java PROPERTIES
       INCLUDE_DIRECTORIES "${COMMON_INCLUDES};${JNI_INCLUDE_DIRS}")
   else()
-    set_target_properties(SG_java PROPERTIES
+    set_target_properties(simgrid-java PROPERTIES
       INCLUDE_DIRECTORIES "${JNI_INCLUDE_DIRS}")
   endif()
-  add_dependencies(SG_java simgrid)
+  add_dependencies(simgrid-java simgrid)
 
-  get_target_property(CHECK_INCLUDES SG_java INCLUDE_DIRECTORIES)
+  get_target_property(CHECK_INCLUDES simgrid-java INCLUDE_DIRECTORIES)
 endif()
-message("-- [Java] SG_java includes: ${CHECK_INCLUDES}")
+message("-- [Java] simgrid-java includes: ${CHECK_INCLUDES}")
+
+target_link_libraries(simgrid-java simgrid)
+
+
+
 
 if(WIN32)
-  get_target_property(SIMGRID_LIB_NAME_NAME SG_java LIBRARY_OUTPUT_NAME)
-  set_target_properties(SG_java PROPERTIES
-    LINK_FLAGS "-Wl,--subsystem,windows,--kill-at ${SIMGRID_LIB_NAME}"
+  exec_program("java -d32 -version"
+                OUTPUT_VARIABLE IS_32_BITS_JVM)
+  STRING( FIND ${IS_32_BITS_JVM} "Error" POSITION )
+  if(${POSITION} GREATER -1) 
+    message(FATAL_ERROR "Java JVM needs to be 32 bits to be able to run with Simgrid on Windows for now")
+  endif()
+
+  set_target_properties(simgrid-java PROPERTIES
+    LINK_FLAGS "-Wl,--subsystem,windows,--kill-at"
     PREFIX "")
   find_path(PEXPORTS_PATH NAMES pexports.exe PATHS NO_DEFAULT_PATHS)
   message(STATUS "pexports: ${PEXPORTS_PATH}")
   if(PEXPORTS_PATH)
-    add_custom_command(TARGET SG_java POST_BUILD
-      COMMAND ${PEXPORTS_PATH}/pexports.exe ${CMAKE_BINARY_DIR}/SG_java.dll > ${CMAKE_BINARY_DIR}/SG_java.def)
+    add_custom_command(TARGET simgrid-java POST_BUILD
+      COMMAND ${PEXPORTS_PATH}/pexports.exe ${CMAKE_BINARY_DIR}/lib/simgrid-java.dll > ${CMAKE_BINARY_DIR}/lib/simgrid-java.def)
   endif(PEXPORTS_PATH)
-else()
-  target_link_libraries(SG_java simgrid)
 endif()
 
 # Rules to build simgrid.jar
@@ -49,9 +58,9 @@ endif()
 set(SIMGRID_JAR "${CMAKE_BINARY_DIR}/simgrid.jar")
 set(MANIFEST_FILE "${CMAKE_HOME_DIRECTORY}/src/bindings/java/MANIFEST.MF")
 set(LIBSIMGRID_SO
-  ${CMAKE_SHARED_LIBRARY_PREFIX}simgrid${CMAKE_SHARED_LIBRARY_SUFFIX})
-set(LIBSG_JAVA_SO
-  ${CMAKE_SHARED_LIBRARY_PREFIX}SG_java${CMAKE_SHARED_LIBRARY_SUFFIX})
+  libsimgrid${CMAKE_SHARED_LIBRARY_SUFFIX})
+set(LIBSIMGRID_JAVA_SO
+  ${CMAKE_SHARED_LIBRARY_PREFIX}simgrid-java${CMAKE_SHARED_LIBRARY_SUFFIX})
 
 ## Name of the "NATIVE" folder in simgrid.jar
 ##
@@ -63,7 +72,7 @@ if(CMAKE_SYSTEM_PROCESSOR MATCHES ".86")
   endif()
 else()
   message(WARNING "Unknown system type. Processor: ${CMAKE_SYSTEM_PROCESSOR}; System: ${CMAKE_SYSTEM_NAME}")
-  set(JSG_BUNDLE "NATIVE/${CMAKE_SYSTEM_NAME}/${CMAKE_SYSTEM_PROCESSOR/")
+  set(JSG_BUNDLE "NATIVE/${CMAKE_SYSTEM_NAME}/${CMAKE_SYSTEM_PROCESSOR}/")
 endif()
 message("-- [Java] Native libraries bundled into: ${JSG_BUNDLE}")
 
@@ -77,16 +86,20 @@ endif()
 
 ## Here is how to build simgrid.jar
 ##
-set(CMAKE_JAVA_TARGET_OUTPUT_NAME simgrid)
-add_jar(SG_java_pre_jar ${JMSG_JAVA_SRC})
+if(CMAKE_VERSION VERSION_LESS "2.8.12")
+  set(CMAKE_JAVA_TARGET_OUTPUT_NAME simgrid)
+  add_jar(simgrid-java_pre_jar ${JMSG_JAVA_SRC})
+else()
+  add_jar(simgrid-java_pre_jar ${JMSG_JAVA_SRC} OUTPUT_NAME simgrid)
+endif()
 
 add_custom_command(
   COMMENT "Finalize simgrid.jar..."
   OUTPUT ${SIMGRID_JAR}_finalized
-  DEPENDS simgrid SG_java SG_java_pre_jar
+  DEPENDS simgrid simgrid-java simgrid-java_pre_jar
           ${SIMGRID_JAR} ${MANIFEST_FILE}
           ${CMAKE_BINARY_DIR}/lib/${LIBSIMGRID_SO}
-          ${CMAKE_BINARY_DIR}/lib/${LIBSG_JAVA_SO}
+          ${CMAKE_BINARY_DIR}/lib/${LIBSIMGRID_JAVA_SO}
           ${CMAKE_HOME_DIRECTORY}/COPYING
           ${CMAKE_HOME_DIRECTORY}/ChangeLog
           ${CMAKE_HOME_DIRECTORY}/ChangeLog.SimGrid-java
@@ -95,8 +108,8 @@ add_custom_command(
   COMMAND ${CMAKE_COMMAND} -E make_directory "${JSG_BUNDLE}"
   COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/lib/${LIBSIMGRID_SO}" "${JSG_BUNDLE}"
   COMMAND ${STRIP_COMMAND} -S "${JSG_BUNDLE}/${LIBSIMGRID_SO}"
-  COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/lib/${LIBSG_JAVA_SO}" "${JSG_BUNDLE}"
-  COMMAND ${STRIP_COMMAND} -S "${JSG_BUNDLE}/${LIBSG_JAVA_SO}"
+  COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_BINARY_DIR}/lib/${LIBSIMGRID_JAVA_SO}" "${JSG_BUNDLE}"
+  COMMAND ${STRIP_COMMAND} -S "${JSG_BUNDLE}/${LIBSIMGRID_JAVA_SO}"
   COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_HOME_DIRECTORY}/COPYING" "${JSG_BUNDLE}"
   COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_HOME_DIRECTORY}/ChangeLog" "${JSG_BUNDLE}"
   COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_HOME_DIRECTORY}/ChangeLog.SimGrid-java" "${JSG_BUNDLE}"
@@ -105,4 +118,4 @@ add_custom_command(
   COMMAND ${CMAKE_COMMAND} -E remove ${SIMGRID_JAR}_finalized
   COMMAND ${CMAKE_COMMAND} -E touch ${SIMGRID_JAR}_finalized
   )
-add_custom_target(SG_java_jar ALL DEPENDS ${SIMGRID_JAR}_finalized)
+add_custom_target(simgrid-java_jar ALL DEPENDS ${SIMGRID_JAR}_finalized)