Rename ARROW_STATIC_LIB because it conflicts with one in FindArrow.cm…

…ake (rapidsai#7518)

Rename `ARROW_STATIC_LIB` because it conflicts with CMake variable in Arrow's `FindArrow.cmake`.

Here's the new way to statically link Arrow with libcudf:
```
cmake -D CUDF_USE_ARROW_STATIC=ON ..
```

Authors:
  - Paul Taylor (@trxcllnt)

Approvers:
  - Keith Kraus (@kkraus14)

URL: rapidsai#7518

cpp/CMakeLists.txt

@@ -44,7 +44,7 @@ option(BUILD_TESTS "Configure CMake to build tests" ON)
 option(BUILD_BENCHMARKS "Configure CMake to build (google) benchmarks" OFF)
 option(BUILD_SHARED_LIBS "Build cuDF shared libraries" ON)
 option(JITIFY_USE_CACHE "Use a file cache for JIT compiled kernels" ON)
-option(ARROW_STATIC_LIB "Build and statically link Arrow libraries" OFF)
+option(CUDF_USE_ARROW_STATIC "Build and statically link Arrow libraries" OFF)
 option(PER_THREAD_DEFAULT_STREAM "Build with per-thread default stream" OFF)
 option(DISABLE_DEPRECATION_WARNING "Disable warnings generated from deprecated declarations." OFF)
 # Option to enable line info in CUDA device compilation to allow introspection when profiling / memchecking
@@ -57,7 +57,7 @@ message(VERBOSE "CUDF: Configure CMake to build tests: ${BUILD_TESTS}")
 message(VERBOSE "CUDF: Configure CMake to build (google) benchmarks: ${BUILD_BENCHMARKS}")
 message(VERBOSE "CUDF: Build cuDF shared libraries: ${BUILD_SHARED_LIBS}")
 message(VERBOSE "CUDF: Use a file cache for JIT compiled kernels: ${JITIFY_USE_CACHE}")
-message(VERBOSE "CUDF: Build and statically link Arrow libraries: ${ARROW_STATIC_LIB}")
+message(VERBOSE "CUDF: Build and statically link Arrow libraries: ${CUDF_USE_ARROW_STATIC}")
 message(VERBOSE "CUDF: Build with per-thread default stream: ${PER_THREAD_DEFAULT_STREAM}")
 message(VERBOSE "CUDF: Disable warnings generated from deprecated declarations: ${DISABLE_DEPRECATION_WARNING}")
 message(VERBOSE "CUDF: Enable the -lineinfo option for nvcc (useful for cuda-memcheck / profiler: ${CUDA_ENABLE_LINEINFO}")
@@ -97,6 +97,11 @@ if("$ENV{CONDA_BUILD}" STREQUAL "1")
     set(CONDA_INCLUDE_DIRS "$ENV{BUILD_PREFIX}/include" "$ENV{PREFIX}/include")
     set(CONDA_LINK_DIRS "$ENV{BUILD_PREFIX}/lib" "$ENV{PREFIX}/lib")
     message(VERBOSE "CUDF: Conda build detected, CMAKE_PREFIX_PATH set to: ${CMAKE_PREFIX_PATH}")
+elseif(DEFINED ENV{CONDA_PREFIX})
+    set(CMAKE_PREFIX_PATH "$ENV{CONDA_PREFIX};${CMAKE_PREFIX_PATH}")
+    set(CONDA_INCLUDE_DIRS "$ENV{CONDA_PREFIX}/include")
+    set(CONDA_LINK_DIRS "$ENV{CONDA_PREFIX}/lib")
+    message(VERBOSE "CUDF: Conda environment detected, CMAKE_PREFIX_PATH set to: ${CMAKE_PREFIX_PATH}")
 endif()
 
 ###################################################################################################

cpp/cmake/thirdparty/CUDF_GetArrow.cmake

@@ -49,6 +49,8 @@ function(find_and_configure_arrow VERSION BUILD_STATIC)
                         "ARROW_WITH_BACKTRACE ON"
                         "ARROW_CXXFLAGS -w"
                         "ARROW_JEMALLOC OFF"
+                        # Arrow modifies CMake's GLOBAL RULE_LAUNCH_COMPILE unless this is off
+                        "ARROW_USE_CCACHE OFF"
                         "ARROW_ARMV8_ARCH ${ARROW_ARMV8_ARCH}"
                         "ARROW_SIMD_LEVEL ${ARROW_SIMD_LEVEL}"
                         "ARROW_BUILD_STATIC ${ARROW_BUILD_STATIC}"
@@ -120,4 +122,4 @@ endfunction()
 
 set(CUDF_VERSION_Arrow 1.0.1)
 
-find_and_configure_arrow(${CUDF_VERSION_Arrow} ${ARROW_STATIC_LIB})
+find_and_configure_arrow(${CUDF_VERSION_Arrow} ${CUDF_USE_ARROW_STATIC})