Keep full libarchive distribution in vendor branch (prep for 3.2.0 update)

1 files changed, 48 insertions, 0 deletions

diff --git a/build/cmake/FindLZMA.cmake b/build/cmake/FindLZMA.cmake
new file mode 100644
index 000000000000..0b46b2cdd125
--- /dev/null
+++ b/build/cmake/FindLZMA.cmake
@@ -0,0 +1,48 @@
+# - Find lzma and lzmadec
+# Find the native LZMA includes and library
+#
+#  LZMA_INCLUDE_DIR    - where to find lzma.h, etc.
+#  LZMA_LIBRARIES      - List of libraries when using liblzma.
+#  LZMA_FOUND          - True if liblzma found.
+#  LZMADEC_INCLUDE_DIR - where to find lzmadec.h, etc.
+#  LZMADEC_LIBRARIES   - List of libraries when using liblzmadec.
+#  LZMADEC_FOUND       - True if liblzmadec found.
+
+IF (LZMA_INCLUDE_DIR)
+  # Already in cache, be silent
+  SET(LZMA_FIND_QUIETLY TRUE)
+ENDIF (LZMA_INCLUDE_DIR)
+
+FIND_PATH(LZMA_INCLUDE_DIR lzma.h)
+FIND_LIBRARY(LZMA_LIBRARY NAMES lzma liblzma)
+
+# handle the QUIETLY and REQUIRED arguments and set LZMA_FOUND to TRUE if 
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZMA DEFAULT_MSG LZMA_LIBRARY LZMA_INCLUDE_DIR)
+
+IF(LZMA_FOUND)
+  SET( LZMA_LIBRARIES ${LZMA_LIBRARY} )
+ELSE(LZMA_FOUND)
+  SET( LZMA_LIBRARIES )
+
+  IF (LZMADEC_INCLUDE_DIR)
+    # Already in cache, be silent
+    SET(LZMADEC_FIND_QUIETLY TRUE)
+  ENDIF (LZMADEC_INCLUDE_DIR)
+
+  FIND_PATH(LZMADEC_INCLUDE_DIR lzmadec.h)
+  FIND_LIBRARY(LZMADEC_LIBRARY NAMES lzmadec )
+
+  # handle the QUIETLY and REQUIRED arguments and set LZMADEC_FOUND to TRUE if 
+  # all listed variables are TRUE
+  INCLUDE(FindPackageHandleStandardArgs)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZMADEC DEFAULT_MSG LZMADEC_LIBRARY
+    LZMADEC_INCLUDE_DIR)
+
+  IF(LZMADEC_FOUND)
+    SET( LZMADEC_LIBRARIES ${LZMADEC_LIBRARY} )
+  ELSE(LZMADEC_FOUND)
+    SET( LZMADEC_LIBRARIES )
+  ENDIF(LZMADEC_FOUND)
+ENDIF(LZMA_FOUND)