Update re2

third_party/re2/CMakeLists.txt

Index: third_party/re2/CMakeLists.txt
diff --git a/third_party/re2/CMakeLists.txt b/third_party/re2/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..c6c606030c23553bf5b637fb83a6df67e640a5f7
--- /dev/null
+++ b/third_party/re2/CMakeLists.txt
@@ -0,0 +1,112 @@
+# Copyright 2015 The RE2 Authors.  All Rights Reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# Old enough to support Ubuntu Precise.
+cmake_minimum_required(VERSION 2.8.7)
+
+project(RE2 CXX)
+option(BUILD_SHARED_LIBS "build shared libraries" OFF)
+option(USEPCRE "use PCRE in tests and benchmarks" OFF)
+
+set(EXTRA_TARGET_LINK_LIBRARIES)
+
+if(WIN32)
+  add_definitions(-DUNICODE -D_UNICODE -DSTRICT -DNOMINMAX)
+  set(THREADING threadwin)
+else()
+  set(THREADING thread)
+  list(APPEND EXTRA_TARGET_LINK_LIBRARIES -pthread)
+endif()
+
+if(USEPCRE)
+  add_definitions(-DUSEPCRE)
+  list(APPEND EXTRA_TARGET_LINK_LIBRARIES pcre)
+endif()
+
+include_directories(${CMAKE_SOURCE_DIR})
+
+set(RE2_LIBRARY_SOURCES
+    re2/bitstate.cc
+    re2/compile.cc
+    re2/dfa.cc
+    re2/filtered_re2.cc
+    re2/mimics_pcre.cc
+    re2/nfa.cc
+    re2/onepass.cc
+    re2/parse.cc
+    re2/perl_groups.cc
+    re2/prefilter.cc
+    re2/prefilter_tree.cc
+    re2/prog.cc
+    re2/re2.cc
+    re2/regexp.cc
+    re2/set.cc
+    re2/simplify.cc
+    re2/stringpiece.cc
+    re2/tostring.cc
+    re2/unicode_casefold.cc
+    re2/unicode_groups.cc
+    util/hash.cc
+    util/logging.cc
+    util/rune.cc
+    util/stringprintf.cc
+    util/strutil.cc
+    util/valgrind.cc
+    )
+
+add_library(re2 ${RE2_LIBRARY_SOURCES})
+
+set(TEST_LIBRARY_SOURCES
+    re2/testing/backtrack.cc
+    re2/testing/dump.cc
+    re2/testing/exhaustive_tester.cc
+    re2/testing/null_walker.cc
+    re2/testing/regexp_generator.cc
+    re2/testing/string_generator.cc
+    re2/testing/tester.cc
+    util/pcre.cc
+    util/random.cc
+    util/${THREADING}.cc
+    )
+
+add_library(test STATIC ${TEST_LIBRARY_SOURCES} util/test.cc)
+add_library(benchmark STATIC ${TEST_LIBRARY_SOURCES} util/benchmark.cc)
+
+set(TEST_TARGETS
+    charclass_test
+    compile_test
+    filtered_re2_test
+    mimics_pcre_test
+    parse_test
+    possible_match_test
+    re2_test
+    re2_arg_test
+    regexp_test
+    required_prefix_test
+    search_test
+    set_test
+    simplify_test
+    string_generator_test
+
+    dfa_test
+    exhaustive1_test
+    exhaustive2_test
+    exhaustive3_test
+    exhaustive_test
+    random_test
+    )
+
+set(BENCHMARK_TARGETS
+    regexp_benchmark
+    )
+
+foreach(target ${TEST_TARGETS})
+  add_executable(${target} re2/testing/${target}.cc)
+  target_link_libraries(${target} test re2 ${EXTRA_TARGET_LINK_LIBRARIES})
+endforeach(target)
+
+foreach(target ${BENCHMARK_TARGETS})
+  add_executable(${target} re2/testing/${target}.cc)
+  target_link_libraries(${target} benchmark re2 ${EXTRA_TARGET_LINK_LIBRARIES})
+endforeach(target)