okay, sometimes this variable doesn't exist?

rerun-io · Mar 1, 2024 · df6703e · df6703e
1 parent 656d199
commit df6703e
Showing 1 changed file with 12 additions and 2 deletions.
diff --git a/rerun_cpp/download_and_build_arrow.cmake b/rerun_cpp/download_and_build_arrow.cmake
@@ -6,8 +6,18 @@ function(download_and_build_arrow)
     include(ExternalProject)
 
     set(ARROW_DOWNLOAD_PATH ${CMAKE_BINARY_DIR}/arrow)
-    set(ARROW_LIB_PATH ${ARROW_DOWNLOAD_PATH}/${CMAKE_INSTALL_LIBDIR})
-    set(ARROW_BIN_PATH ${ARROW_DOWNLOAD_PATH}/${CMAKE_INSTALL_BINDIR})
+
+    if(NOT DEFINED CMAKE_INSTALL_LIBDIR OR CMAKE_INSTALL_LIBDIR STREQUAL "")
+        set(ARROW_LIB_PATH ${ARROW_DOWNLOAD_PATH}/${CMAKE_INSTALL_LIBDIR})
+    else()
+        set(ARROW_LIB_PATH ${ARROW_DOWNLOAD_PATH}/lib)
+    endif()
+
+    if(NOT DEFINED CMAKE_INSTALL_BINDIR OR CMAKE_INSTALL_BINDIR STREQUAL "")
+        set(ARROW_BIN_PATH ${ARROW_DOWNLOAD_PATH}/${CMAKE_INSTALL_BINDIR})
+    else()
+        set(ARROW_BIN_PATH ${ARROW_DOWNLOAD_PATH}/bin)
+    endif()
 
     if(RERUN_ARROW_LINK_SHARED)
         set(ARROW_BUILD_SHARED ON)