Core/Build: Force minimum ACE (5.8.3) and OpenSSL (1.0.0) version detection

Core/Build: Do not ignore command line cmake options: ACE_INCLUDE_DIR, ACE_LIBRARY and OPENSSL_INCLUDE_DIR

3 files changed, 112 insertions, 43 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b5db167fa22..c3e8d8d2b11 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,6 +48,9 @@ endif()
 include(CheckPlatform)
 
 # basic packagesearching and setup (further support will be needed, this is a preliminary release!)
+set(OPENSSL_EXPECTED_VERSION 1.0.0)
+set(ACE_EXPECTED_VERSION 5.8.3)
+
 find_package(PCHSupport)
 find_package(ACE REQUIRED)
 find_package(OpenSSL REQUIRED)
diff --git a/cmake/macros/FindACE.cmake b/cmake/macros/FindACE.cmake
index 4ade5f64b03..bd534fb33db 100644
--- a/cmake/macros/FindACE.cmake
+++ b/cmake/macros/FindACE.cmake
@@ -1,6 +1,6 @@
 #
 # Find the ACE client includes and library
-# 
+#
 
 # This module defines
 # ACE_INCLUDE_DIR, where to find ace.h
@@ -13,47 +13,66 @@
 set( ACE_FOUND 0 )
 
 if ( UNIX )
-  FIND_PATH( ACE_INCLUDE_DIR
-    NAMES
-      ace/ACE.h
-    PATHS
-      /usr/include
-      /usr/include/ace
-      /usr/local/include
-      /usr/local/include/ace
-      $ENV{ACE_ROOT}
-      $ENV{ACE_ROOT}/include
-      ${CMAKE_SOURCE_DIR}/externals/ace
-  DOC
-    "Specify include-directories that might contain ace.h here."
-  )
-  FIND_LIBRARY( ACE_LIBRARY 
-    NAMES
-      ace ACE
-    PATHS
-      /usr/lib
-      /usr/lib/ace
-      /usr/local/lib
-      /usr/local/lib/ace
-      /usr/local/ace/lib
-      $ENV{ACE_ROOT}/lib
-      $ENV{ACE_ROOT}
-    DOC "Specify library-locations that might contain the ACE library here."
-  )
+  if (NOT ACE_INCLUDE_DIR)
+    FIND_PATH( ACE_INCLUDE_DIR
+      NAMES
+        ace/ACE.h
+      PATHS
+        /usr/include
+        /usr/include/ace
+        /usr/local/include
+        /usr/local/include/ace
+        $ENV{ACE_ROOT}
+        $ENV{ACE_ROOT}/ace
+        $ENV{ACE_ROOT}/include
+        ${CMAKE_SOURCE_DIR}/externals/ace
+    DOC
+      "Specify include-directories that might contain ace.h here."
+    )
+  endif()
+
+  if (NOT ACE_LIBRARY)
+    FIND_LIBRARY( ACE_LIBRARY
+      NAMES
+        ace ACE
+      PATHS
+        /usr/lib
+        /usr/lib/ace
+        /usr/local/lib
+        /usr/local/lib/ace
+        /usr/local/ace/lib
+        $ENV{ACE_ROOT}/lib
+        $ENV{ACE_ROOT}
+      DOC "Specify library-locations that might contain the ACE library here."
+    )
 
-#  FIND_LIBRARY( ACE_EXTRA_LIBRARIES
-#    NAMES
-#      z zlib
-#    PATHS
-#      /usr/lib
-#      /usr/local/lib
-#    DOC
-#      "if more libraries are necessary to link into ACE, specify them here."
-#  )
+  #  FIND_LIBRARY( ACE_EXTRA_LIBRARIES
+  #    NAMES
+  #      z zlib
+  #    PATHS
+  #      /usr/lib
+  #      /usr/local/lib
+  #    DOC
+  #      "if more libraries are necessary to link into ACE, specify them here."
+  #  )
+  endif()
 
   if ( ACE_LIBRARY )
     if ( ACE_INCLUDE_DIR )
-      set( ACE_FOUND 1 )
+      if (_ACE_VERSION)
+        set(ACE_VERSION "${_ACE_VERSION}")
+      else (_ACE_VERSION)
+        file(STRINGS "${ACE_INCLUDE_DIR}/ace/Version.h" ACE_VERSION_STR REGEX "^#define ACE_VERSION \".*\"")
+        string(REGEX REPLACE "^.*ACE_VERSION \"([0-9].[0-9].[0-9a-z]).*$"
+           "\\1" ACE_VERSION "${ACE_VERSION_STR}")
+      endif (_ACE_VERSION)
+
+      include(EnsureVersion)
+      ENSURE_VERSION( "${ACE_EXPECTED_VERSION}" "${ACE_VERSION}" ACE_FOUND)
+      if (NOT ACE_FOUND)
+        message(FATAL_ERROR "TrinityCore needs ACE version ${ACE_EXPECTED_VERSION} but found version ${ACE_VERSION}")
+      endif()
+
       message( STATUS "Found ACE library: ${ACE_LIBRARY}")
       message( STATUS "Found ACE headers: ${ACE_INCLUDE_DIR}")
     else ( ACE_INCLUDE_DIR )
diff --git a/cmake/macros/FindOpenSSL.cmake b/cmake/macros/FindOpenSSL.cmake
index 245a91d4199..1cc34b36a4c 100644
--- a/cmake/macros/FindOpenSSL.cmake
+++ b/cmake/macros/FindOpenSSL.cmake
@@ -171,10 +171,57 @@ ELSE(WIN32 AND NOT CYGWIN)
 
 ENDIF(WIN32 AND NOT CYGWIN)
 
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(OpenSSL DEFAULT_MSG
-  OPENSSL_LIBRARIES 
-  OPENSSL_INCLUDE_DIR
-)
+if (NOT OPENSSL_INCLUDE_DIR)
+  include(FindPackageHandleStandardArgs)
+  find_package_handle_standard_args(OpenSSL DEFAULT_MSG
+    OPENSSL_LIBRARIES
+    OPENSSL_INCLUDE_DIR
+  )
+endif()
+
+if (OPENSSL_INCLUDE_DIR)
+  message( STATUS "Found OpenSSL library: ${OPENSSL_LIBRARIES}")
+  message( STATUS "Found OpenSSL headers: ${OPENSSL_INCLUDE_DIR}")
+  if (_OPENSSL_VERSION)
+    set(OPENSSL_VERSION "${_OPENSSL_VERSION}")
+  else (_OPENSSL_VERSION)
+    file(STRINGS "${OPENSSL_INCLUDE_DIR}/openssl/opensslv.h" openssl_version_str
+         REGEX "^#define[\t ]+OPENSSL_VERSION_NUMBER[\t ]+0x[0-9][0-9][0-9][0-9][0-9][0-9].*")
+
+    # The version number is encoded as 0xMNNFFPPS: major minor fix patch status
+    # The status gives if this is a developer or prerelease and is ignored here.
+    # Major, minor, and fix directly translate into the version numbers shown in
+    # the string. The patch field translates to the single character suffix that
+    # indicates the bug fix state, which 00 -> nothing, 01 -> a, 02 -> b and so
+    # on.
+
+    string(REGEX REPLACE "^.*OPENSSL_VERSION_NUMBER[\t ]+0x([0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f][0-9a-f])([0-9a-f]).*$"
+           "\\1;\\2;\\3;\\4;\\5" OPENSSL_VERSION_LIST "${openssl_version_str}")
+    list(GET OPENSSL_VERSION_LIST 0 OPENSSL_VERSION_MAJOR)
+    list(GET OPENSSL_VERSION_LIST 1 OPENSSL_VERSION_MINOR)
+    list(GET OPENSSL_VERSION_LIST 2 OPENSSL_VERSION_FIX)
+    list(GET OPENSSL_VERSION_LIST 3 OPENSSL_VERSION_PATCH)
+
+    string(REGEX REPLACE "^0(.)" "\\1" OPENSSL_VERSION_MINOR "${OPENSSL_VERSION_MINOR}")
+    string(REGEX REPLACE "^0(.)" "\\1" OPENSSL_VERSION_FIX "${OPENSSL_VERSION_FIX}")
+
+    if (NOT OPENSSL_VERSION_PATCH STREQUAL "00")
+      # 96 is the ASCII code of 'a' minus 1
+      math(EXPR OPENSSL_VERSION_PATCH_ASCII "${OPENSSL_VERSION_PATCH} + 96")
+      # Once anyone knows how OpenSSL would call the patch versions beyond 'z'
+      # this should be updated to handle that, too. This has not happened yet
+      # so it is simply ignored here for now.
+      string(ASCII "${OPENSSL_VERSION_PATCH_ASCII}" OPENSSL_VERSION_PATCH_STRING)
+    endif (NOT OPENSSL_VERSION_PATCH STREQUAL "00")
+
+    set(OPENSSL_VERSION "${OPENSSL_VERSION_MAJOR}.${OPENSSL_VERSION_MINOR}.${OPENSSL_VERSION_FIX}${OPENSSL_VERSION_PATCH_STRING}")
+  endif (_OPENSSL_VERSION)
+
+  include(EnsureVersion)
+  ENSURE_VERSION( "${OPENSSL_EXPECTED_VERSION}" "${OPENSSL_VERSION}" OPENSSL_VERSION_OK)
+  if (NOT OPENSSL_VERSION_OK)
+      message(FATAL_ERROR "TrinityCore needs OpenSSL version ${OPENSSL_EXPECTED_VERSION} but found version ${OPENSSL_VERSION}")
+  endif()
+endif (OPENSSL_INCLUDE_DIR)
 
 MARK_AS_ADVANCED(OPENSSL_INCLUDE_DIR OPENSSL_LIBRARIES)