DOC: add comment to why these steps?

65dc2602 · Rashad Kanavath · 1b8d1046 · 65dc2602
Commit 65dc2602 authored Jul 31, 2017 by Rashad Kanavath
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SuperBuild/CMake/External_zlib.cmake SuperBuild/CMake/External_zlib.cmake +2 -0

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--- a/SuperBuild/CMake/External_zlib.cmake
+++ b/SuperBuild/CMake/External_zlib.cmake
@@ -39,12 +39,14 @@ ExternalProject_Add(ZLIB
  LOG_INSTALL 1
  )

+#patch zlib cmake to disable static build on request
 if(UNIX)
  ExternalProject_Add_Step(ZLIB remove_static
    COMMAND ${CMAKE_COMMAND} -E remove ${SB_INSTALL_PREFIX}/lib/libz.a
    DEPENDEES install)
 endif()

+#check who uses zdll.lib and remove this hack
 if(MSVC)
  ExternalProject_Add_Step(ZLIB msvc_copy_hell
    COMMAND ${CMAKE_COMMAND} -E copy ${ZLIB_SB_BUILD_DIR}/zlib.lib ${SB_INSTALL_PREFIX}/lib/zdll.lib