Add CMake support

.gitignore

@@ -5,3 +5,4 @@ lib*.so.*
 debian-template/wiringPi
 debian-template/wiringpi-*.deb
 gpio/gpio
+build2

CMakeLists.txt

@@ -0,0 +1,26 @@
+#
+# Copyright (c)2021- Alligator Descartes <http://www.hermitretro.com>
+#
+# This file is part of WiringPi
+#
+#     WiringPi is free software: you can redistribute it and/or modify
+#     it under the terms of the GNU General Public License as published by
+#     the Free Software Foundation, either version 3 of the License, or
+#     (at your option) any later version.
+#
+#     WiringPi is distributed in the hope that it will be useful,
+#     but WITHOUT ANY WARRANTY; without even the implied warranty of
+#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#     GNU General Public License for more details.
+#
+#     You should have received a copy of the GNU General Public License
+#     along with WiringPi.  If not, see <https://www.gnu.org/licenses/>.
+
+cmake_minimum_required (VERSION 2.8)
+
+project (WiringPi)
+
+add_subdirectory(${PROJECT_SOURCE_DIR}/devLib/)
+add_subdirectory(${PROJECT_SOURCE_DIR}/wiringPi/)
+add_subdirectory(${PROJECT_SOURCE_DIR}/gpio/)
+

devLib/CMakeLists.txt

@@ -0,0 +1,25 @@
+#
+# Copyright (c)2021- Alligator Descartes <http://www.hermitretro.com>
+#
+# This file is part of WiringPi
+#
+#     WiringPi is free software: you can redistribute it and/or modify
+#     it under the terms of the GNU General Public License as published by
+#     the Free Software Foundation, either version 3 of the License, or
+#     (at your option) any later version.
+#
+#     WiringPi is distributed in the hope that it will be useful,
+#     but WITHOUT ANY WARRANTY; without even the implied warranty of
+#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#     GNU General Public License for more details.
+#
+#     You should have received a copy of the GNU General Public License
+#     along with WiringPi.  If not, see <https://www.gnu.org/licenses/>.
+
+include_directories(${PROJECT_SOURCE_DIR}/wiringPi)
+
+add_compile_options(-D_FILE_OFFSET_BITS=64 -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast)
+
+file(GLOB_RECURSE SOURCES "*.c")
+
+add_library(devLib STATIC ${SOURCES})

gpio/CMakeLists.txt

@@ -0,0 +1,27 @@
+#
+# Copyright (c)2021- Alligator Descartes <http://www.hermitretro.com>
+#
+# This file is part of WiringPi
+#
+#     WiringPi is free software: you can redistribute it and/or modify
+#     it under the terms of the GNU General Public License as published by
+#     the Free Software Foundation, either version 3 of the License, or
+#     (at your option) any later version.
+#
+#     WiringPi is distributed in the hope that it will be useful,
+#     but WITHOUT ANY WARRANTY; without even the implied warranty of
+#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#     GNU General Public License for more details.
+#
+#     You should have received a copy of the GNU General Public License
+#     along with WiringPi.  If not, see <https://www.gnu.org/licenses/>.
+
+include_directories(${PROJECT_SOURCE_DIR}/wiringPi)
+
+add_compile_options(-D_FILE_OFFSET_BITS=64 -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast)
+
+file(GLOB_RECURSE SOURCES "*.c")
+
+link_directories(${PROJECT_SOURCE_DIR}/wiringPi ${PROJECT_SOURCE_DIR}/devLib)
+add_executable(gpio ${SOURCES})
+target_link_libraries(gpio wiringPi devLib m rt pthread crypt)

wiringPi/CMakeLists.txt

@@ -0,0 +1,25 @@
+#
+# Copyright (c)2021- Alligator Descartes <http://www.hermitretro.com>
+#
+# This file is part of WiringPi
+#
+#     WiringPi is free software: you can redistribute it and/or modify
+#     it under the terms of the GNU General Public License as published by
+#     the Free Software Foundation, either version 3 of the License, or
+#     (at your option) any later version.
+#
+#     WiringPi is distributed in the hope that it will be useful,
+#     but WITHOUT ANY WARRANTY; without even the implied warranty of
+#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#     GNU General Public License for more details.
+#
+#     You should have received a copy of the GNU General Public License
+#     along with WiringPi.  If not, see <https://www.gnu.org/licenses/>.
+
+include_directories(${PROJECT_SOURCE_DIR}/wiringPi)
+
+add_compile_options(-D_FILE_OFFSET_BITS=64 -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast)
+
+file(GLOB_RECURSE SOURCES "*.c")
+
+add_library(wiringPi STATIC ${SOURCES})