Get rid of the custom CHECK_SHARED_FUNCTION_EXISTS function

2 files changed, 9 insertions, 104 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 01baa040..21846be1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,6 @@ SET(CMAKE_MODULE_PATH "${OpenAL_SOURCE_DIR}/cmake")
 
 INCLUDE(CheckFunctionExists)
 INCLUDE(CheckLibraryExists)
-INCLUDE(CheckSharedFunctionExists)
 INCLUDE(CheckIncludeFile)
 INCLUDE(CheckIncludeFiles)
 INCLUDE(CheckSymbolExists)
@@ -697,8 +696,8 @@ SET(ALC_OBJS
     Alc/effects/modulator.cpp
     Alc/effects/null.cpp
     Alc/effects/pshifter.cpp
-    Alc/effects/vmorpher.cpp
     Alc/effects/reverb.cpp
+    Alc/effects/vmorpher.cpp
     Alc/filters/biquad.h
     Alc/filters/biquad.cpp
     Alc/filters/nfc.cpp
@@ -944,16 +943,14 @@ IF(HAVE_WINDOWS_H)
 
     # Check MMSystem backend
     CHECK_INCLUDE_FILES("windows.h;mmsystem.h" HAVE_MMSYSTEM_H)
-    IF(HAVE_MMSYSTEM_H)
-        CHECK_SHARED_FUNCTION_EXISTS(waveOutOpen "windows.h;mmsystem.h" winmm "" HAVE_LIBWINMM)
-        IF(HAVE_LIBWINMM)
-            OPTION(ALSOFT_BACKEND_WINMM "Enable Windows Multimedia backend" ON)
-            IF(ALSOFT_BACKEND_WINMM)
-                SET(HAVE_WINMM 1)
-                SET(BACKENDS  "${BACKENDS} WinMM,")
-                SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/winmm.cpp Alc/backends/winmm.h)
-                SET(EXTRA_LIBS winmm ${EXTRA_LIBS})
-            ENDIF()
+    FIND_LIBRARY(WINMM_LIBRARY NAMES winmm)
+    IF(HAVE_MMSYSTEM_H AND WINMM_LIBRARY)
+        OPTION(ALSOFT_BACKEND_WINMM "Enable Windows Multimedia backend" ON)
+        IF(ALSOFT_BACKEND_WINMM)
+            SET(HAVE_WINMM 1)
+            SET(BACKENDS  "${BACKENDS} WinMM,")
+            SET(ALC_OBJS  ${ALC_OBJS} Alc/backends/winmm.cpp Alc/backends/winmm.h)
+            SET(EXTRA_LIBS ${WINMM_LIBRARY} ${EXTRA_LIBS})
         ENDIF()
     ENDIF()
 
diff --git a/cmake/CheckSharedFunctionExists.cmake b/cmake/CheckSharedFunctionExists.cmake
deleted file mode 100644
index c691fa9c..00000000
--- a/cmake/CheckSharedFunctionExists.cmake
+++ /dev/null
@@ -1,92 +0,0 @@
-# - Check if a symbol exists as a function, variable, or macro
-# CHECK_SYMBOL_EXISTS(<symbol> <files> <variable>)
-#
-# Check that the <symbol> is available after including given header
-# <files> and store the result in a <variable>.  Specify the list
-# of files in one argument as a semicolon-separated list.
-#
-# If the header files define the symbol as a macro it is considered
-# available and assumed to work.  If the header files declare the
-# symbol as a function or variable then the symbol must also be
-# available for linking.  If the symbol is a type or enum value
-# it will not be recognized (consider using CheckTypeSize or
-# CheckCSourceCompiles).
-#
-# The following variables may be set before calling this macro to
-# modify the way the check is run:
-#
-#  CMAKE_REQUIRED_FLAGS = string of compile command line flags
-#  CMAKE_REQUIRED_DEFINITIONS = list of macros to define (-DFOO=bar)
-#  CMAKE_REQUIRED_INCLUDES = list of include directories
-#  CMAKE_REQUIRED_LIBRARIES = list of libraries to link
-
-#=============================================================================
-# Copyright 2003-2011 Kitware, Inc.
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
-
-MACRO(CHECK_SHARED_FUNCTION_EXISTS SYMBOL FILES LIBRARY LOCATION VARIABLE)
-  IF(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}")
-    SET(CMAKE_CONFIGURABLE_FILE_CONTENT "/* */\n")
-    SET(MACRO_CHECK_SYMBOL_EXISTS_FLAGS ${CMAKE_REQUIRED_FLAGS})
-    IF(CMAKE_REQUIRED_LIBRARIES)
-      SET(CHECK_SYMBOL_EXISTS_LIBS 
-        "-DLINK_LIBRARIES:STRING=${CMAKE_REQUIRED_LIBRARIES};${LIBRARY}")
-    ELSE(CMAKE_REQUIRED_LIBRARIES)
-      SET(CHECK_SYMBOL_EXISTS_LIBS
-        "-DLINK_LIBRARIES:STRING=${LIBRARY}")
-    ENDIF(CMAKE_REQUIRED_LIBRARIES)
-    IF(CMAKE_REQUIRED_INCLUDES)
-      SET(CMAKE_SYMBOL_EXISTS_INCLUDES
-        "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
-    ELSE(CMAKE_REQUIRED_INCLUDES)
-      SET(CMAKE_SYMBOL_EXISTS_INCLUDES)
-    ENDIF(CMAKE_REQUIRED_INCLUDES)
-    FOREACH(FILE ${FILES})
-      SET(CMAKE_CONFIGURABLE_FILE_CONTENT
-        "${CMAKE_CONFIGURABLE_FILE_CONTENT}#include <${FILE}>\n")
-    ENDFOREACH(FILE)
-    SET(CMAKE_CONFIGURABLE_FILE_CONTENT
-      "${CMAKE_CONFIGURABLE_FILE_CONTENT}\nvoid cmakeRequireSymbol(int dummy,...){(void)dummy;}\nint main()\n{\n  cmakeRequireSymbol(0,&${SYMBOL});\n  return 0;\n}\n")
-
-    CONFIGURE_FILE("${CMAKE_ROOT}/Modules/CMakeConfigurableFile.in"
-      "${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c" @ONLY)
-
-    MESSAGE(STATUS "Looking for ${SYMBOL} in ${LIBRARY}")
-    TRY_COMPILE(${VARIABLE}
-      ${CMAKE_CURRENT_BINARY_DIR}
-      ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c
-      COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
-      CMAKE_FLAGS 
-      -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_SYMBOL_EXISTS_FLAGS}
-      -DLINK_DIRECTORIES:STRING=${LOCATION}
-      "${CHECK_SYMBOL_EXISTS_LIBS}"
-      "${CMAKE_SYMBOL_EXISTS_INCLUDES}"
-      OUTPUT_VARIABLE OUTPUT)
-    IF(${VARIABLE})
-      MESSAGE(STATUS "Looking for ${SYMBOL} in ${LIBRARY} - found")
-      SET(${VARIABLE} 1 CACHE INTERNAL "Have symbol ${SYMBOL} in ${LIBRARY}")
-      FILE(APPEND ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
-        "Determining if the ${SYMBOL} "
-        "exist in ${LIBRARY} passed with the following output:\n"
-        "${OUTPUT}\nFile ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c:\n"
-        "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
-    ELSE(${VARIABLE})
-      MESSAGE(STATUS "Looking for ${SYMBOL} in ${LIBRARY} - not found.")
-      SET(${VARIABLE} "" CACHE INTERNAL "Have symbol ${SYMBOL} in ${LIBRARY}")
-      FILE(APPEND ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
-        "Determining if the ${SYMBOL} "
-        "exist in ${LIBRARY} failed with the following output:\n"
-        "${OUTPUT}\nFile ${CMAKE_CURRENT_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckSymbolExists.c:\n"
-        "${CMAKE_CONFIGURABLE_FILE_CONTENT}\n")
-    ENDIF(${VARIABLE})
-  ENDIF(NOT DEFINED "${VARIABLE}" OR "x${${VARIABLE}}" STREQUAL "x${VARIABLE}")
-ENDMACRO(CHECK_SHARED_FUNCTION_EXISTS)