configure: support libunwind of LLVM

The libunwind headers of LLVM are located in the subdirectory
/usr/include/libunwind. Search that subdirectory when the default
header test fails. Also extend the include path due to the transitive
include of `<__libunwind_config.h>`.

Closes: #894
1 file changed
tree: a6ff6d3cd63c573e5914bdc35e127d2bd76fc9d7
  1. .github/
  2. darwin/
  3. docs/
  4. dragonflybsd/
  5. freebsd/
  6. generic/
  7. iwyu/
  8. linux/
  9. netbsd/
  10. openbsd/
  11. pcp/
  12. scripts/
  13. solaris/
  14. unsupported/
  15. zfs/
  16. .editorconfig
  17. .gitignore
  18. .travis.yml
  19. Action.c
  20. Action.h
  21. Affinity.c
  22. Affinity.h
  23. AffinityPanel.c
  24. AffinityPanel.h
  25. AUTHORS
  26. autogen.sh
  27. AvailableColumnsPanel.c
  28. AvailableColumnsPanel.h
  29. AvailableMetersPanel.c
  30. AvailableMetersPanel.h
  31. BatteryMeter.c
  32. BatteryMeter.h
  33. CategoriesPanel.c
  34. CategoriesPanel.h
  35. ChangeLog
  36. ClockMeter.c
  37. ClockMeter.h
  38. ColorsPanel.c
  39. ColorsPanel.h
  40. ColumnsPanel.c
  41. ColumnsPanel.h
  42. CommandLine.c
  43. CommandLine.h
  44. CommandScreen.c
  45. CommandScreen.h
  46. Compat.c
  47. Compat.h
  48. configure.ac
  49. CONTRIBUTING.md
  50. COPYING
  51. CPUMeter.c
  52. CPUMeter.h
  53. CRT.c
  54. CRT.h
  55. DateMeter.c
  56. DateMeter.h
  57. DateTimeMeter.c
  58. DateTimeMeter.h
  59. DiskIOMeter.c
  60. DiskIOMeter.h
  61. DisplayOptionsPanel.c
  62. DisplayOptionsPanel.h
  63. DynamicColumn.c
  64. DynamicColumn.h
  65. DynamicMeter.c
  66. DynamicMeter.h
  67. EnvScreen.c
  68. EnvScreen.h
  69. FunctionBar.c
  70. FunctionBar.h
  71. Hashtable.c
  72. Hashtable.h
  73. Header.c
  74. Header.h
  75. HeaderLayout.h
  76. HeaderOptionsPanel.c
  77. HeaderOptionsPanel.h
  78. HostnameMeter.c
  79. HostnameMeter.h
  80. htop.1.in
  81. htop.c
  82. htop.desktop
  83. htop.png
  84. htop.svg
  85. IncSet.c
  86. IncSet.h
  87. InfoScreen.c
  88. InfoScreen.h
  89. ListItem.c
  90. ListItem.h
  91. LoadAverageMeter.c
  92. LoadAverageMeter.h
  93. Macros.h
  94. MainPanel.c
  95. MainPanel.h
  96. Makefile.am
  97. MemoryMeter.c
  98. MemoryMeter.h
  99. MemorySwapMeter.c
  100. MemorySwapMeter.h
  101. Meter.c
  102. Meter.h
  103. MetersPanel.c
  104. MetersPanel.h
  105. NetworkIOMeter.c
  106. NetworkIOMeter.h
  107. NEWS
  108. Object.c
  109. Object.h
  110. OpenFilesScreen.c
  111. OpenFilesScreen.h
  112. OptionItem.c
  113. OptionItem.h
  114. Panel.c
  115. Panel.h
  116. pcp-htop.5.in
  117. pcp-htop.c
  118. Process.c
  119. Process.h
  120. ProcessList.c
  121. ProcessList.h
  122. ProcessLocksScreen.c
  123. ProcessLocksScreen.h
  124. ProvideCurses.h
  125. README
  126. RichString.c
  127. RichString.h
  128. ScreenManager.c
  129. ScreenManager.h
  130. ScreensPanel.c
  131. ScreensPanel.h
  132. Settings.c
  133. Settings.h
  134. SignalsPanel.c
  135. SignalsPanel.h
  136. SwapMeter.c
  137. SwapMeter.h
  138. SysArchMeter.c
  139. SysArchMeter.h
  140. TasksMeter.c
  141. TasksMeter.h
  142. test_spec.lua
  143. TESTPLAN
  144. TraceScreen.c
  145. TraceScreen.h
  146. UptimeMeter.c
  147. UptimeMeter.h
  148. UsersTable.c
  149. UsersTable.h
  150. Vector.c
  151. Vector.h
  152. XUtils.c
  153. XUtils.h