[cmake] Drop the support of CMake 2.x.

* CMakeLists.txt: Require CMake 3.0 (released on 2014) or newer.

The issue #1059 reports the difficulty to support both of
CMake 2.x and newer one by single CMakeLists.txt without
the inflation of cmake_policy() workarounds.

For better maintainability, the support of CMake 2.x is
dropped.
This commit is contained in:
suzuki toshiya 2022-02-20 23:55:32 +09:00
parent 6c5522c6f8
commit bcdfa38692
1 changed files with 3 additions and 4 deletions

View File

@ -106,10 +106,9 @@
# (this is compatible with the same CMake variables in zlib's CMake
# support).
# FreeType explicitly marks the API to be exported and relies on the compiler
# to hide all other symbols. CMake supports a C_VISBILITY_PRESET property
# starting with 2.8.12.
cmake_minimum_required(VERSION 2.8.12)
# To minimize the number of cmake_policy() workarounds,
# CMake >= 3 is requested.
cmake_minimum_required(VERSION 3.0)
if (NOT CMAKE_VERSION VERSION_LESS 3.3)
# Allow symbol visibility settings also on static libraries. CMake < 3.3