[C++] arrow.pc with system RE2 2023-06-01 or later has missing dependencies

[kou]

Describe the enhancement requested

Because RE2 2023-06-01 or later require Abseil but we always use only libre2.a to avoid -std=c++:

arrow/cpp/cmake_modules/ThirdpartyToolchain.cmake

Lines 2596 to 2608 in 22f2cfd

	if(ARROW_WITH_RE2)
	# Don't specify "PC_PACKAGE_NAMES re2" here because re2.pc may
	# include -std=c++11. It's not compatible with C source and C++
	# source not uses C++ 11.
	resolve_dependency(re2 HAVE_ALT TRUE)
	if(${re2_SOURCE} STREQUAL "SYSTEM" AND ARROW_BUILD_STATIC)
	get_target_property(RE2_TYPE re2::re2 TYPE)
	if(NOT RE2_TYPE STREQUAL "INTERFACE_LIBRARY")
	string(APPEND ARROW_PC_LIBS_PRIVATE " $<TARGET_FILE:re2::re2>")
	endif()
	endif()
	add_definitions(-DARROW_WITH_RE2)
	endif()

I can't remember which platform's re2.pc has -std=c++11 when I wrote #10626... but it may not exist now.

Component(s)

C++