Handle cmake pre-3.1 for cxx standard version.

PDAL · Aug 14, 2018 · 333a51b · 333a51b
1 parent b8e6c7e
commit 333a51b
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/cmake/unix_compiler_options.cmake b/cmake/unix_compiler_options.cmake
@@ -1,6 +1,10 @@
 function(pdal_target_compile_settings target)
-    set_property(TARGET ${target} PROPERTY CXX_STANDARD 11)
-    set_property(TARGET ${target} PROPERTY CXX_STANDARD_REQUIRED TRUE)
+    if (NOT ${CMAKE_VERSION} VERSION_LESS 3.1)
+        set_property(TARGET ${target} PROPERTY CXX_STANDARD 11)
+        set_property(TARGET ${target} PROPERTY CXX_STANDARD_REQUIRED TRUE)
+    else()
+        set(PDAL_CXX_STANDARD "-std=c++11")
+    endif()
     if (${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
         #
         # VERSION_GREATER_EQUAL doesn't come until cmake 3.7