Commit e6c7ed6d authored by Saleem Abdulrasool's avatar Saleem Abdulrasool
Browse files

build: make `LLVM_ENABLE_ZLIB` a tri-bool for users 

Treat the flag `LLVM_ENABLE_ZLIB` as a tri-bool, `FORCE_ON` being `ON`,
and `ON` being an auto-detect.  This is needed as many of the builders
enable the flag without having zlib available.
parent 68a235d0

llvm/CMakeLists.txt

+1 −1
Original line number Diff line number Diff line
@@ -347,7 +347,7 @@ option(LLVM_ENABLE_LIBPFM "Use libpfm for performance counters if available." ON 


option(LLVM_ENABLE_THREADS "Use threads if available." ON)



option(LLVM_ENABLE_ZLIB "Use zlib for compression/decompression if available." ON)

set(LLVM_ENABLE_ZLIB "ON" CACHE STRING "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON")



set(LLVM_Z3_INSTALL_DIR "" CACHE STRING "Install directory of the Z3 solver.")

llvm/cmake/config-ix.cmake

+15 −5
Original line number Diff line number Diff line
@@ -117,10 +117,6 @@ endif() 
# Don't look for these libraries if we're using MSan, since uninstrumented third

# party code may call MSan interceptors like strlen, leading to false positives.

if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")

  if(LLVM_ENABLE_ZLIB)

    find_package(ZLIB REQUIRED)

  endif()



  # Don't look for these libraries on Windows.

  if (NOT PURE_WINDOWS)

    # Skip libedit if using ASan as it contains memory leaks.
@@ -506,7 +502,21 @@ else( LLVM_ENABLE_THREADS ) 
endif()



if(LLVM_ENABLE_ZLIB)

  if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON)

    find_package(ZLIB REQUIRED)

  else()

    find_package(ZLIB)

  endif()



  if(ZLIB_FOUND)

    set(LLVM_ENABLE_ZLIB "YES" CACHE STRING

      "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON"

      FORCE)

  else()

    set(LLVM_ENABLE_ZLIB "NO" CACHE STRING

      "Use zlib for compression/decompression if available. Can be ON, OFF, or FORCE_ON"

      FORCE)

  endif()

endif()



if (LLVM_ENABLE_DOXYGEN)

llvm/lib/Support/CMakeLists.txt

+4 −1
Original line number Diff line number Diff line 
if(LLVM_ENABLE_ZLIB)

  set(system_libs ${ZLIB_LIBRARY})

endif()



if( MSVC OR MINGW )

  # libuuid required for FOLDERID_Profile usage in lib/Support/Windows/Path.inc.

  # advapi32 required for CryptAcquireContextW in lib/Support/Windows/Path.inc.