Build: Various improvements to install/pkg system

- GNUInstallDirs: any directory variable can now reference any other
  directory variable by including its name in angle brackets (<>).

- Changed the documentation of the directory variables in BUILDING.md
  accordingly.  This commit also includes some formatting tweaks to
  that section (using boldface for directory names, as is our
  convention.)

- Changed the package scripts such that they use
  CMAKE_INSTALL_DATAROOTDIR rather than CMAKE_INSTALL_DATADIR.

- We no longer override the install dir. defaults on Windows unless
  performing an official build.  It may be useful, for instance, to
  use the GNU defaults when installing into an MSYS environment.
6 files changed
tree: eed860572e145eda0e20d6839a7295d35a4933da
  1. ci/
  2. cmakescripts/
  3. doc/
  4. java/
  5. md5/
  6. release/
  7. sharedlib/
  8. simd/
  9. testimages/
  10. win/
  11. .gitattributes
  12. .travis.yml
  13. appveyor.yml
  14. bmp.c
  15. bmp.h
  16. BUILDING.md
  17. cderror.h
  18. cdjpeg.c
  19. cdjpeg.h
  20. change.log
  21. ChangeLog.md
  22. cjpeg.1
  23. cjpeg.c
  24. CMakeLists.txt
  25. coderules.txt
  26. djpeg.1
  27. djpeg.c
  28. doxygen-extra.css
  29. doxygen.config
  30. example.c
  31. jaricom.c
  32. jcapimin.c
  33. jcapistd.c
  34. jcarith.c
  35. jccoefct.c
  36. jccolext.c
  37. jccolor.c
  38. jcdctmgr.c
  39. jchuff.c
  40. jchuff.h
  41. jcinit.c
  42. jcmainct.c
  43. jcmarker.c
  44. jcmaster.c
  45. jcomapi.c
  46. jconfig.h.in
  47. jconfig.txt
  48. jconfigint.h.in
  49. jcparam.c
  50. jcphuff.c
  51. jcprepct.c
  52. jcsample.c
  53. jcstest.c
  54. jctrans.c
  55. jdapimin.c
  56. jdapistd.c
  57. jdarith.c
  58. jdatadst-tj.c
  59. jdatadst.c
  60. jdatasrc-tj.c
  61. jdatasrc.c
  62. jdcoefct.c
  63. jdcoefct.h
  64. jdcol565.c
  65. jdcolext.c
  66. jdcolor.c
  67. jdct.h
  68. jddctmgr.c
  69. jdhuff.c
  70. jdhuff.h
  71. jdinput.c
  72. jdmainct.c
  73. jdmainct.h
  74. jdmarker.c
  75. jdmaster.c
  76. jdmaster.h
  77. jdmerge.c
  78. jdmrg565.c
  79. jdmrgext.c
  80. jdphuff.c
  81. jdpostct.c
  82. jdsample.c
  83. jdsample.h
  84. jdtrans.c
  85. jerror.c
  86. jerror.h
  87. jfdctflt.c
  88. jfdctfst.c
  89. jfdctint.c
  90. jidctflt.c
  91. jidctfst.c
  92. jidctint.c
  93. jidctred.c
  94. jinclude.h
  95. jmemmgr.c
  96. jmemnobs.c
  97. jmemsys.h
  98. jmorecfg.h
  99. jpeg_nbits_table.h
  100. jpegcomp.h
  101. jpegint.h
  102. jpeglib.h
  103. jpegtran.1
  104. jpegtran.c
  105. jquant1.c
  106. jquant2.c
  107. jsimd.h
  108. jsimd_none.c
  109. jsimddct.h
  110. jstdhuff.c
  111. jutils.c
  112. jversion.h
  113. libjpeg.map.in
  114. libjpeg.txt
  115. LICENSE.md
  116. rdbmp.c
  117. rdcolmap.c
  118. rdgif.c
  119. rdjpgcom.1
  120. rdjpgcom.c
  121. rdppm.c
  122. rdrle.c
  123. rdswitch.c
  124. rdtarga.c
  125. README.ijg
  126. README.md
  127. structure.txt
  128. tjbench.c
  129. tjbenchtest.in
  130. tjbenchtest.java.in
  131. tjexampletest.in
  132. tjunittest.c
  133. tjutil.c
  134. tjutil.h
  135. transupp.c
  136. transupp.h
  137. turbojpeg-jni.c
  138. turbojpeg-mapfile
  139. turbojpeg-mapfile.jni
  140. turbojpeg.c
  141. turbojpeg.h
  142. usage.txt
  143. wizard.txt
  144. wrbmp.c
  145. wrgif.c
  146. wrjpgcom.1
  147. wrjpgcom.c
  148. wrppm.c
  149. wrppm.h
  150. wrrle.c
  151. wrtarga.c