1 files changed, 59 insertions, 0 deletions
diff --git a/src/arrow/cpp/cmake_modules/FindgflagsAlt.cmake b/src/arrow/cpp/cmake_modules/FindgflagsAlt.cmake
new file mode 100644
index 000000000..e092ea3e9
--- /dev/null
+++ b/src/arrow/cpp/cmake_modules/FindgflagsAlt.cmake
@@ -0,0 +1,59 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+set(find_package_args)
+if(gflagsAlt_FIND_VERSION)
+  list(APPEND find_package_args ${gflagsAlt_FIND_VERSION})
+endif()
+if(gflagsAlt_FIND_QUIETLY)
+  list(APPEND find_package_args QUIET)
+endif()
+find_package(gflags ${find_package_args})
+if(gflags_FOUND)
+  set(gflagsAlt_FOUND TRUE)
+  return()
+endif()
+
+# TODO: Support version detection.
+
+if(gflags_ROOT)
+  find_library(gflags_LIB
+               NAMES gflags
+               PATHS ${gflags_ROOT}
+               PATH_SUFFIXES ${ARROW_LIBRARY_PATH_SUFFIXES}
+               NO_DEFAULT_PATH)
+  find_path(GFLAGS_INCLUDE_DIR
+            NAMES gflags/gflags.h
+            PATHS ${gflags_ROOT}
+            NO_DEFAULT_PATH
+            PATH_SUFFIXES ${ARROW_INCLUDE_PATH_SUFFIXES})
+else()
+  find_library(gflags_LIB NAMES gflags)
+  find_path(GFLAGS_INCLUDE_DIR
+            NAMES gflags/gflags.h
+            PATH_SUFFIXES ${ARROW_INCLUDE_PATH_SUFFIXES})
+endif()
+
+find_package_handle_standard_args(gflagsAlt REQUIRED_VARS gflags_LIB GFLAGS_INCLUDE_DIR)
+
+if(gflagsAlt_FOUND)
+  add_library(gflags::gflags UNKNOWN IMPORTED)
+  set_target_properties(gflags::gflags
+                        PROPERTIES IMPORTED_LOCATION "${gflags_LIB}"
+                                   INTERFACE_INCLUDE_DIRECTORIES "${GFLAGS_INCLUDE_DIR}")
+  set(GFLAGS_LIBRARIES gflags::gflags)
+endif()