The funny thing is: at work (with Windows 7 Pro 32bit)I just needed to install the DirectX SDK, too. After that I the QT5Multimedia.dll (and some otheres DLLs files) were created.

At home (Windows 7 64bit ultimate) I installed the DirectX SDK, too. I added the "-audio-backend" flag to the configure command, but I am still missing some DLLs.

Here ist my configure command:

Qt Code:
  1. configure -debug-and-release -opensource -confirm-license -platform win32-g++ -developer-build -c++11 -icu -opengl desktop -openssl -plugin-sql-odbc -qt-style-windowsxp -qt-style-windowsvista -audio-backend -nomake tests
To copy to clipboard, switch view to plain text mode 

The output of this command is the following:

Qt Code:
  1. Environment:
  2. INCLUDE=
  3. C:\Qt\qt5_deps\icu\dist\include
  4. C:\Qt\qt5_deps\openssl-1.0.1c\dist\include
  5. LIB=
  6. C:\Qt\qt5_deps\icu\dist\lib
  7. C:\Qt\qt5_deps\openssl-1.0.1c\dist\lib
  8. PATH=
  9. C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common
  10. C:\Program Files (x86)\CollabNet\Subversion Client
  11. C:\Windows\system32
  12. C:\Windows
  13. C:\Windows\System32\Wbem
  14. C:\Windows\System32\WindowsPowerShell\v1.0\
  15. C:\Program Files (x86)\QuickTime\QTSystem\
  16. C:\Program Files\TortoiseSVN\bin
  17. C:\Program Files (x86)\WinMerge
  18. C:\strawberry\c\bin
  19. C:\strawberry\perl\site\bin
  20. C:\strawberry\perl\bin
  21. C:\qt\qt5\qtbase\bin
  22. C:\qt\qt5\gnuwin32\bin
  23. c:\QT\mingw64-4.7.2\bin
  24. C:\QT\Strawberry\perl\bin
  25. c:\qt\phyton27
  26. C:\Ruby193\bin
  27. C:\Qt\qt5_deps\icu\dist\lib:C:\Qt\qt5_deps\openssl-1.0.1c\dist\bin
  28. C:\Windows\System32
  29. Configuration:
  30. minimal-config
  31. small-config
  32. medium-config
  33. large-config
  34. full-config
  35. pcre
  36. debug
  37. Qt Configuration:
  38. private_tests
  39. debug_and_release build_all release
  40. debug
  41. c++11
  42. shared
  43. system-zlib
  44. icu
  45. system-jpeg
  46. png
  47. system-png
  48. freetype
  49. build_all
  50. accessibility
  51. opengl
  52. openssl
  53. audio-backend
  54. native-gestures
  55. qpa
  56. iconv
  57. concurrent
  58. minimal-config
  59. small-config
  60. medium-config
  61. large-config
  62. full-config
  63.  
  64. QMAKESPEC................... (commandline)
  65. Architecture................x86_64, features: mmx sse sse2
  66. Host Architecture...........x86_64, features: mmx sse sse2
  67. Maketool....................mingw32-make
  68. Debug build.................yes (combined)
  69. Default build...............debug
  70. Force debug info............no
  71. C++11 support...............yes
  72. Link Time Code Generation...no
  73. Accessibility support.......yes
  74. RTTI support................yes
  75. SSE2 support................yes
  76. SSE3 support................yes
  77. SSSE3 support...............yes
  78. SSE4.1 support..............yes
  79. SSE4.2 support..............yes
  80. AVX support.................yes
  81. AVX2 support................no
  82. NEON support................no
  83. IWMMXT support..............no
  84. OpenGL support..............yes
  85. Large File support..........yes
  86. NIS support.................no
  87. Iconv support...............yes
  88. Inotify support.............no
  89. Glib support................no
  90. CUPS support................no
  91. OpenVG support..............no
  92. OpenSSL support.............yes
  93. QtDBus support..............no
  94. QtWidgets module support....yes
  95. QML debugging...............yes
  96. DirectWrite support.........no
  97. Use system proxies..........no
  98.  
  99. Third Party Libraries:
  100. ZLIB support............system
  101. GIF support.............plugin
  102. JPEG support............plugin
  103. PNG support.............yes
  104. FreeType support........yes
  105.  
  106. PCRE support............qt
  107. ICU support.............yes
  108. ANGLE...................no
  109. Styles:
  110. Windows.................yes
  111. Windows XP..............yes
  112. Windows Vista...........yes
  113. Fusion..................yes
  114. Windows CE..............no
  115. Windows Mobile..........no
  116.  
  117. Sql Drivers:
  118. ODBC....................plugin
  119. MySQL...................no
  120. OCI.....................no
  121. PostgreSQL..............no
  122. TDS.....................no
  123. DB2.....................no
  124. SQLite..................plugin (qt)
  125. SQLite2.................no
  126. InterBase...............no
  127.  
  128. Sources are in..............C:\QT\qt5\qtbase
  129. Build is done in............C:\QT\qt5\qtbase
  130. Install prefix..............C:\QT\qt5\qtbase
  131. Headers installed to........C:\QT\qt5\qtbase\include
  132. Libraries installed to......C:\QT\qt5\qtbase\lib
  133. Arch-dep. data to...........C:\QT\qt5\qtbase
  134. Plugins installed to........C:\QT\qt5\qtbase\plugins
  135. Library execs installed to..
  136. QML1 imports installed to...C:\QT\qt5\qtbase\imports
  137. QML2 imports installed to...C:\QT\qt5\qtbase\qml
  138. Binaries installed to.......C:\QT\qt5\qtbase\bin
  139. Arch-indep. data to.........C:\QT\qt5\qtbase
  140. Docs installed to...........C:\QT\qt5\qtbase\doc
  141. Translations installed to...C:\QT\qt5\qtbase\translations
  142. Examples installed to.......C:\QT\qt5\qtbase\examples
  143. Tests installed to..........C:\QT\qt5\qtbase\tests
  144. Using internal configuration.
  145.  
  146. Generating Makefiles...
  147.  
  148.  
  149. Qt is now configured for building. Just run mingw32-make.
  150. To reconfigure, run mingw32-make confclean and configure.
  151.  
  152. + C:/QT/qt5/qtbase/bin/qmake C:/QT/qt5/qtsdk.pro
  153.  
  154. C:\QT\qt5>
To copy to clipboard, switch view to plain text mode 

And the listing of my files in the QTbase\bin foldes ist the following:

Qt Code:
  1. Volume in Laufwerk C: hat keine Bezeichnung.
  2. Volumeseriennummer: 64A7-7777
  3.  
  4. Verzeichnis von C:\QT\qt5\qtbase\bin
  5.  
  6. 12.01.2013 07:07 <DIR> .
  7. 12.01.2013 07:07 <DIR> ..
  8. 11.01.2013 23:17 284.160 dumpcpp.exe
  9. 12.01.2013 07:07 0 files.txt
  10. 18.12.2012 21:03 6.356 findtr
  11. 18.12.2012 21:03 6.198 fixqt4headers.pl
  12. 11.01.2013 20:09 20.852.230 icudt50.dll
  13. 11.01.2013 20:09 3.340.836 icuin50.dll
  14. 11.01.2013 20:09 126.478 icuio50.dll
  15. 11.01.2013 20:09 407.757 icule50.dll
  16. 11.01.2013 20:09 135.152 iculx50.dll
  17. 11.01.2013 20:09 155.945 icutest50.dll
  18. 11.01.2013 20:09 295.310 icutu50.dll
  19. 11.01.2013 20:09 1.978.215 icuuc50.dll
  20. 11.01.2013 23:13 33.280 idc.exe
  21. 11.01.2013 19:43 1.655.808 libeay32.dll
  22. 11.01.2013 22:35 1.273.856 moc.exe
  23. 11.01.2013 22:36 2.655.232 qdoc.exe
  24. 11.01.2013 22:33 4.604.928 qmake.exe
  25. 11.01.2013 22:33 29 qt.conf
  26. 11.01.2013 22:39 29.696 Qt5Concurrent.dll
  27. 11.01.2013 22:39 551.477 Qt5Concurrentd.dll
  28. 11.01.2013 22:38 4.816.384 Qt5Core.dll
  29. 11.01.2013 22:39 81.579.316 Qt5Cored.dll
  30. 11.01.2013 22:44 3.661.824 Qt5Gui.dll
  31. 11.01.2013 22:45 145.383.770 Qt5Guid.dll
  32. 11.01.2013 22:42 1.313.792 Qt5Network.dll
  33. 11.01.2013 22:42 33.500.144 Qt5Networkd.dll
  34. 11.01.2013 22:51 377.344 Qt5OpenGL.dll
  35. 11.01.2013 22:51 12.084.335 Qt5OpenGLd.dll
  36. 11.01.2013 22:51 272.384 Qt5PrintSupport.dll
  37. 11.01.2013 22:51 7.176.203 Qt5PrintSupportd.dll
  38. 12.01.2013 00:12 1.797.120 Qt5Script.dll
  39. 12.01.2013 00:09 86.139.600 Qt5Scriptd.dll
  40. 12.01.2013 00:36 700.928 Qt5ScriptTools.dll
  41. 12.01.2013 00:38 22.316.791 Qt5ScriptToolsd.dll
  42. 11.01.2013 22:40 221.184 Qt5Sql.dll
  43. 11.01.2013 22:40 5.199.078 Qt5Sqld.dll
  44. 11.01.2013 23:03 304.128 Qt5Svg.dll
  45. 11.01.2013 23:03 7.494.250 Qt5Svgd.dll
  46. 11.01.2013 22:40 147.968 Qt5Test.dll
  47. 11.01.2013 22:40 2.360.828 Qt5Testd.dll
  48. 11.01.2013 22:49 5.526.528 Qt5Widgets.dll
  49. 11.01.2013 22:50 145.616.118 Qt5Widgetsd.dll
  50. 11.01.2013 22:39 212.480 Qt5Xml.dll
  51. 11.01.2013 22:39 1.732.176 Qt5Xmld.dll
  52. 12.01.2013 00:31 5.440.000 Qt5XmlPatterns.dll
  53. 12.01.2013 00:30 150.414.298 Qt5XmlPatternsd.dll
  54. 11.01.2013 22:35 1.082.368 rcc.exe
  55. 11.01.2013 19:43 377.856 ssleay32.dll
  56. 18.12.2012 21:03 52.802 syncqt
  57. 18.12.2012 21:03 2.128 syncqt.bat
  58. 11.01.2013 22:36 1.475.584 uic.exe
  59. 12.01.2013 00:34 1.071.569 xmlpatterns.exe
  60. 12.01.2013 00:34 300.734 xmlpatternsvalidator.exe
  61. 53 Datei(en), 768.544.955 Bytes
  62. 2 Verzeichnis(se), 77.468.102.656 Bytes frei
To copy to clipboard, switch view to plain text mode 

Can you see any reason why it doesn't work?