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-rw-r--r--Utilities/cmbzip2/CMakeLists.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Utilities/cmbzip2/CMakeLists.txt b/Utilities/cmbzip2/CMakeLists.txt
index 52efe14ced..1d7b265d4c 100644
--- a/Utilities/cmbzip2/CMakeLists.txt
+++ b/Utilities/cmbzip2/CMakeLists.txt
@@ -8,6 +8,14 @@ elseif(CMAKE_C_COMPILER_ID STREQUAL "PathScale")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -woffall")
endif()
+# Activate POSIX APIs.
+if(CMAKE_SYSTEM_NAME MATCHES "^(AIX|OS400)$")
+ add_definitions(-D_ALL_SOURCE)
+endif()
+if(NOT CMAKE_SYSTEM_NAME MATCHES "BSD|Darwin|Windows")
+ add_definitions(-D_XOPEN_SOURCE=600)
+endif()
+
add_definitions(-D_FILE_OFFSET_BITS=64)
add_library(cmbzip2
blocksort.c huffman.c crctable.c randtable.c compress.c decompress.c bzlib.c)