| Byron |
10-15-2023 09:19 AM |
Anyone else having trouble with cmake for his ffmpeg build? Specifically ffmpeg 5.1.3 and building the game music emulator lib? I've never really used cmake before, but I think the problem lies in the version I'm using? Could someone confirm whether it's demanding I use an older/newer version of cmake for this?
A relevant extract from the CMakeLists.txt found in the build env for gme leads me to believe I need a version under 2.7:
Code:
# 2.6+ always assumes FATAL_ERROR, but 2.4 and below don't.
# Of course, 2.4 might work, in which case you're welcome to drop
# down the requirement, but I can't test that.
cmake_minimum_required(VERSION 2.6 FATAL_ERROR)
but then when I try running the cmake command in the build env itself, I get this warning:
Code:
CMake Deprecation Warning at CMakeLists.txt:12 (cmake_minimum_required):
Compatibility with CMake < 2.8.12 will be removed from a future version of
CMake.
Update the VERSION argument <min> value or use a ...<max> suffix to tell
CMake that the project does not need compatibility with older versions.
CMake Error at CMakeLists.txt:72 (if):
if given arguments:
"(" "VERSION_GREATER" "4.1" ")" "OR" "(" "VERSION_EQUAL" "4.1" ")"
Unknown arguments specified
Which, in the larger context of its original stanza:
Code:
# gcc <4.1 had poor support for symbol visibility
if ((${_gcc_version} VERSION_GREATER "4.1") OR (${_gcc_version} VERSION_EQUAL "4.1"))
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
set (ENABLE_VISIBILITY ON)
add_definitions (-DLIBGME_VISIBILITY)
# GCC >= 4.2 also correctly supports making inline members have hidden
# visibility by default.
if ((${_gcc_version} VERSION_GREATER "4.2") OR (${_gcc_version} VERSION_EQUAL "4.2"))
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden")
endif()
endif()
endif() # test visibility
leads me to believe that versions greater than 2.6 should work.
I'm currently using cmake 3.21.4 and just updated and upgraded my system yesterday. I'm on 15.0 stable. Was this package built with slackware -current in mind maybe? |
