build: Use pkg-config to find liblzma in preference to AC_CHECK_LIB

This means that liblzma’s Libs.private will be included in LZMA_LIBS if
linking the libraries statically, ensuring that there are no undefined
symbol errors from liblzma’s private libraries.

If pkg-config isn’t installed, or if liblzma.pc couldn’t be found, fall
back to using AC_CHECK_LIB as before. This will cause static linking to
fail, but that’s not a regression.

This does not introduce a compile time dependency on pkg-config.

https://bugzilla.gnome.org/show_bug.cgi?id=711026
1 file changed
tree: d16ca7c734830a8bf62bca490f482c16676592dd
  1. bakefile/
  2. doc/
  3. example/
  4. include/
  5. macos/
  6. optim/
  7. python/
  8. result/
  9. test/
  10. vms/
  11. VxWorks/
  12. win32/
  13. xstc/
  14. .gitignore
  15. acinclude.m4
  16. AUTHORS
  17. autogen.sh
  18. buf.c
  19. buf.h
  20. build_glob.py
  21. c14n.c
  22. catalog.c
  23. ChangeLog
  24. check-relaxng-test-suite.py
  25. check-relaxng-test-suite2.py
  26. check-xinclude-test-suite.py
  27. check-xml-test-suite.py
  28. check-xsddata-test-suite.py
  29. chvalid.c
  30. chvalid.def
  31. configure.in
  32. Copyright
  33. dbgen.pl
  34. dbgenattr.pl
  35. debugXML.c
  36. dict.c
  37. DOCBparser.c
  38. elfgcchack.h
  39. enc.h
  40. encoding.c
  41. entities.c
  42. error.c
  43. genChRanges.py
  44. gentest.py
  45. genUnicode.py
  46. global.data
  47. globals.c
  48. HACKING
  49. hash.c
  50. HTMLparser.c
  51. HTMLtree.c
  52. INSTALL.libxml2
  53. legacy.c
  54. libxml-2.0-uninstalled.pc.in
  55. libxml-2.0.pc.in
  56. libxml.3
  57. libxml.h
  58. libxml.m4
  59. libxml.spec.in
  60. libxml2.doap
  61. libxml2.syms
  62. list.c
  63. MAINTAINERS
  64. Makefile.am
  65. Makefile.tests
  66. Makefile.win
  67. nanoftp.c
  68. nanohttp.c
  69. NEWS
  70. parser.c
  71. parserInternals.c
  72. pattern.c
  73. README
  74. README.cvs-commits
  75. README.tests
  76. regressions.py
  77. regressions.xml
  78. relaxng.c
  79. rngparser.c
  80. runsuite.c
  81. runtest.c
  82. runxmlconf.c
  83. save.h
  84. SAX.c
  85. SAX2.c
  86. schematron.c
  87. testapi.c
  88. testAutomata.c
  89. testC14N.c
  90. testchar.c
  91. testdict.c
  92. testdso.c
  93. testHTML.c
  94. testlimits.c
  95. testModule.c
  96. testOOM.c
  97. testOOMlib.c
  98. testOOMlib.h
  99. testReader.c
  100. testrecurse.c
  101. testRegexp.c
  102. testRelax.c
  103. testSAX.c
  104. testSchemas.c
  105. testThreads.c
  106. testThreadsWin32.c
  107. testURI.c
  108. testXPath.c
  109. threads.c
  110. timsort.h
  111. TODO
  112. TODO_SCHEMAS
  113. tree.c
  114. trio.c
  115. trio.h
  116. triodef.h
  117. trionan.c
  118. trionan.h
  119. triop.h
  120. triostr.c
  121. triostr.h
  122. uri.c
  123. valid.c
  124. xinclude.c
  125. xlink.c
  126. xml2-config.1
  127. xml2-config.in
  128. xml2Conf.sh.in
  129. xmlcatalog.c
  130. xmlIO.c
  131. xmllint.c
  132. xmlmemory.c
  133. xmlmodule.c
  134. xmlreader.c
  135. xmlregexp.c
  136. xmlsave.c
  137. xmlschemas.c
  138. xmlschemastypes.c
  139. xmlstring.c
  140. xmlunicode.c
  141. xmlwriter.c
  142. xpath.c
  143. xpointer.c
  144. xzlib.c
  145. xzlib.h