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authorBrad King <brad.king@kitware.com>2022-06-02 16:14:20 -0400
committerBrad King <brad.king@kitware.com>2022-06-04 09:08:27 -0400
commitc7c3e39e4faa6fe4f6868b8bf83ee20bda5a5faf (patch)
tree8bd7255e484899809b0e2fa1ff4103292fda0c74 /Utilities/cmliblzma
parent3ba324b6b6acf8db34bde5a79563fe9161f9896c (diff)
downloadcmake-c7c3e39e4faa6fe4f6868b8bf83ee20bda5a5faf.tar.gz
Utilities: Activate POSIX APIs even without compiler extensions
Compile some third-party libraries with preprocessor definitions that activate POSIX APIs even when compiler extensions are not enabled. We already do this in libuv, inherited from the upstream buildsystem. This extends commit f034b0f663 (CMake compilation: do not use compiler extensions, 2020-03-14, v3.18.0-rc1~494^2). Issue: #20454
Diffstat (limited to 'Utilities/cmliblzma')
-rw-r--r--Utilities/cmliblzma/CMakeLists.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Utilities/cmliblzma/CMakeLists.txt b/Utilities/cmliblzma/CMakeLists.txt
index 0de1e97241..3121fbe4c2 100644
--- a/Utilities/cmliblzma/CMakeLists.txt
+++ b/Utilities/cmliblzma/CMakeLists.txt
@@ -166,6 +166,14 @@ 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_LIBRARY(cmliblzma STATIC ${LZMA_SRCS})
IF(CMAKE_C_COMPILER_ID STREQUAL "XL")