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Take advantage of IrrlichtMt CMake target (#11287)
With the CMake changes to IrrlichtMt, it's now possible to use a target for IrrlichtMt.
Besides greatly improving the ease of setting up IrrlichtMt for users building the client, it removes the need for Minetest's CMake to include transitive dependencies such as image libraries, cleaning it up a tiny bit. The PR works by finding the IrrlichtMt package and linking to the target it provides. If the package isn't found and it isn't building the client, it will still fall back to using just the headers of old Irrlicht or IrrlichtMt.
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JosiahWI committed Jul 27, 2021
1 parent 216728c commit cf136914cf421ee52f6806eda2fa97740d0ee552
@@ -9,7 +9,7 @@ stages:
- deploy

variables:
IRRLICHT_TAG: "1.9.0mt1"
IRRLICHT_TAG: "1.9.0mt2"
MINETEST_GAME_REPO: "https://github.com/minetest/minetest_game.git"
CONTAINER_IMAGE: registry.gitlab.com/$CI_PROJECT_PATH

@@ -19,14 +19,10 @@ variables:
- apt-get update
- apt-get -y install build-essential git cmake libpng-dev libjpeg-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libleveldb-dev libogg-dev libvorbis-dev libopenal-dev libcurl4-gnutls-dev libfreetype6-dev zlib1g-dev libgmp-dev libjsoncpp-dev
script:
- git clone https://github.com/minetest/irrlicht -b $IRRLICHT_TAG
- cd irrlicht
- cmake . -DBUILD_SHARED_LIBS=OFF
- make -j2
- cd ..
- git clone https://github.com/minetest/irrlicht -b $IRRLICHT_TAG lib/irrlichtmt
- mkdir cmakebuild
- cd cmakebuild
- cmake -DIRRLICHT_LIBRARY=$PWD/../irrlicht/lib/Linux/libIrrlichtMt.a -DIRRLICHT_INCLUDE_DIR=$PWD/../irrlicht/include -DCMAKE_INSTALL_PREFIX=../artifact/minetest/usr/ -DCMAKE_BUILD_TYPE=Release -DRUN_IN_PLACE=FALSE -DENABLE_GETTEXT=TRUE -DBUILD_SERVER=TRUE ..
- cmake -DCMAKE_INSTALL_PREFIX=../artifact/minetest/usr/ -DCMAKE_BUILD_TYPE=Release -DRUN_IN_PLACE=FALSE -DENABLE_GETTEXT=TRUE -DBUILD_SERVER=TRUE ..
- make -j2
- make install
artifacts:
@@ -68,34 +68,25 @@ if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/lib/irrlichtmt")
if(NOT TARGET IrrlichtMt)
message(FATAL_ERROR "IrrlichtMt project is missing a CMake target?!")
endif()

# set include dir the way it would normally be
set(IRRLICHT_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/lib/irrlichtmt/include")
set(IRRLICHT_LIBRARY IrrlichtMt)
else()
find_package(Irrlicht)
if(BUILD_CLIENT AND NOT IRRLICHT_FOUND)
message(FATAL_ERROR "IrrlichtMt is required to build the client, but it was not found.")
elseif(NOT IRRLICHT_INCLUDE_DIR)
message(FATAL_ERROR "Irrlicht or IrrlichtMt headers are required to build the server, but none found.")
endif()
endif()
find_package(IrrlichtMt QUIET)
if(NOT TARGET IrrlichtMt::IrrlichtMt)
string(CONCAT explanation_msg
"The Minetest team has forked Irrlicht to make their own customizations. "
"It can be found here: https://github.com/minetest/irrlicht")
if(BUILD_CLIENT)
message(FATAL_ERROR "IrrlichtMt is required to build the client, but it was not found.\n${explanation_msg}")
endif()

include(CheckSymbolExists)
set(CMAKE_REQUIRED_INCLUDES ${IRRLICHT_INCLUDE_DIR})
unset(HAS_FORKED_IRRLICHT CACHE)
check_symbol_exists(IRRLICHT_VERSION_MT "IrrCompileConfig.h" HAS_FORKED_IRRLICHT)
if(NOT HAS_FORKED_IRRLICHT)
string(CONCAT EXPLANATION_MSG
"Irrlicht found, but it is not IrrlichtMt (Minetest's Irrlicht fork). "
"The Minetest team has forked Irrlicht to make their own customizations. "
"It can be found here: https://github.com/minetest/irrlicht")
if(BUILD_CLIENT)
message(FATAL_ERROR "${EXPLANATION_MSG}\n"
"Building the client with upstream Irrlicht is no longer possible.")
include(MinetestFindIrrlichtHeaders)
if(NOT IRRLICHT_INCLUDE_DIR)
message(FATAL_ERROR "Irrlicht or IrrlichtMt headers are required to build the server, but none found.\n${explanation_msg}")
endif()
message(STATUS "Found Irrlicht headers: ${IRRLICHT_INCLUDE_DIR}")
add_library(IrrlichtMt::IrrlichtMt INTERFACE IMPORTED)
target_include_directories(IrrlichtMt::IrrlichtMt INTERFACE "${IRRLICHT_INCLUDE_DIR}")
else()
message(WARNING "${EXPLANATION_MSG}\n"
"The server can still be built with upstream Irrlicht but this is DISCOURAGED.")
message(STATUS "Found IrrlichtMt ${IrrlichtMt_VERSION}")
endif()
endif()

@@ -223,6 +223,9 @@ Run it:
- Debug build is slower, but gives much more useful output in a debugger.
- If you build a bare server you don't need to have the Irrlicht or IrrlichtMt library installed.
- In that case use `-DIRRLICHT_INCLUDE_DIR=/some/where/irrlicht/include`.
- IrrlichtMt can also be installed somewhere that is not a standard install path.
- In that case use `-DCMAKE_PREFIX_PATH=/path/to/install_prefix`
- The path must be set so that `$(CMAKE_PREFIX_PATH)/lib/cmake/IrrlichtMt` exists.

### CMake options

This file was deleted.

@@ -0,0 +1,26 @@
# Locate Irrlicht or IrrlichtMt headers on system.

foreach(libname IN ITEMS IrrlichtMt Irrlicht)
string(TOLOWER "${libname}" libname2)

find_path(IRRLICHT_INCLUDE_DIR NAMES irrlicht.h
DOC "Path to the directory with IrrlichtMt includes"
PATHS
/usr/local/include/${libname2}
/usr/include/${libname2}
/system/develop/headers/${libname2} #Haiku
PATH_SUFFIXES "include/${libname2}"
)

if(IRRLICHT_INCLUDE_DIR)
break()
endif()
endforeach()

# Handholding for users
if(IRRLICHT_INCLUDE_DIR AND (NOT IS_DIRECTORY "${IRRLICHT_INCLUDE_DIR}" OR
NOT EXISTS "${IRRLICHT_INCLUDE_DIR}/irrlicht.h"))
message(WARNING "IRRLICHT_INCLUDE_DIR was set to ${IRRLICHT_INCLUDE_DIR} "
"but irrlicht.h does not exist inside. The path will not be used.")
unset(IRRLICHT_INCLUDE_DIR CACHE)
endif()
@@ -293,33 +293,7 @@ else()
if(NOT HAIKU AND NOT APPLE)
find_package(X11 REQUIRED)
endif(NOT HAIKU AND NOT APPLE)

##
# The following dependencies are transitive dependencies from Irrlicht.
# Minetest itself does not use them, but we link them so that statically
# linking Irrlicht works.
if(NOT HAIKU AND NOT APPLE)
# This way Xxf86vm is found on OpenBSD too
find_library(XXF86VM_LIBRARY Xxf86vm)
mark_as_advanced(XXF86VM_LIBRARY)
set(CLIENT_PLATFORM_LIBS ${CLIENT_PLATFORM_LIBS} ${XXF86VM_LIBRARY})
endif(NOT HAIKU AND NOT APPLE)

find_package(JPEG REQUIRED)
find_package(PNG REQUIRED)
if(APPLE)
find_library(CARBON_LIB Carbon REQUIRED)
find_library(COCOA_LIB Cocoa REQUIRED)
find_library(IOKIT_LIB IOKit REQUIRED)
mark_as_advanced(
CARBON_LIB
COCOA_LIB
IOKIT_LIB
)
SET(CLIENT_PLATFORM_LIBS ${CLIENT_PLATFORM_LIBS} ${CARBON_LIB} ${COCOA_LIB} ${IOKIT_LIB})
endif(APPLE)
##
endif(BUILD_CLIENT)
endif()

find_package(ZLIB REQUIRED)
set(PLATFORM_LIBS -lpthread ${CMAKE_DL_LIBS})
@@ -511,9 +485,7 @@ endif()
include_directories(
${PROJECT_BINARY_DIR}
${PROJECT_SOURCE_DIR}
${IRRLICHT_INCLUDE_DIR}
${ZLIB_INCLUDE_DIR}
${PNG_INCLUDE_DIR}
${SOUND_INCLUDE_DIRS}
${SQLITE3_INCLUDE_DIR}
${LUA_INCLUDE_DIR}
@@ -548,18 +520,14 @@ if(BUILD_CLIENT)
target_link_libraries(
${PROJECT_NAME}
${ZLIB_LIBRARIES}
${IRRLICHT_LIBRARY}
${JPEG_LIBRARIES}
${BZIP2_LIBRARIES}
${PNG_LIBRARIES}
IrrlichtMt::IrrlichtMt
${X11_LIBRARIES}
${SOUND_LIBRARIES}
${SQLITE3_LIBRARY}
${LUA_LIBRARY}
${GMP_LIBRARY}
${JSON_LIBRARY}
${PLATFORM_LIBS}
${CLIENT_PLATFORM_LIBS}
)
if(NOT USE_LUAJIT)
set_target_properties(${PROJECT_NAME} PROPERTIES
@@ -629,6 +597,11 @@ endif(BUILD_CLIENT)
if(BUILD_SERVER)
add_executable(${PROJECT_NAME}server ${server_SRCS} ${extra_windows_SRCS})
add_dependencies(${PROJECT_NAME}server GenerateVersion)

get_target_property(
IRRLICHT_INCLUDES IrrlichtMt::IrrlichtMt INTERFACE_INCLUDE_DIRECTORIES)
# Doesn't work without PRIVATE/PUBLIC/INTERFACE mode specified.
target_include_directories(${PROJECT_NAME}server PRIVATE ${IRRLICHT_INCLUDES})
target_link_libraries(
${PROJECT_NAME}server
${ZLIB_LIBRARIES}
@@ -30,7 +30,7 @@ if [ -z "$toolchain_file" ]; then
fi
echo "Using $toolchain_file"

irrlicht_version=1.9.0mt1
irrlicht_version=1.9.0mt2
ogg_version=1.3.4
vorbis_version=1.3.7
curl_version=7.76.1
@@ -97,7 +97,7 @@ cd $builddir
mkdir build
cd build

irr_dlls=$(echo $libdir/irrlicht/bin/*.dll | tr ' ' ';')
irr_dlls=$(echo $libdir/irrlicht/lib/*.dll | tr ' ' ';')
vorbis_dlls=$(echo $libdir/libvorbis/bin/libvorbis{,file}-*.dll | tr ' ' ';')
gettext_dlls=$(echo $libdir/gettext/bin/lib{intl,iconv}-*.dll | tr ' ' ';')

@@ -113,9 +113,7 @@ cmake -S $sourcedir -B . \
-DENABLE_FREETYPE=1 \
-DENABLE_LEVELDB=1 \
\
-DIRRLICHT_INCLUDE_DIR=$libdir/irrlicht/include/irrlichtmt \
-DIRRLICHT_LIBRARY=$libdir/irrlicht/lib/libIrrlichtMt.dll.a \
-DIRRLICHT_DLL="$irr_dlls" \
-DCMAKE_PREFIX_PATH=$libdir/irrlicht \
\
-DZLIB_INCLUDE_DIR=$libdir/zlib/include \
-DZLIB_LIBRARIES=$libdir/zlib/lib/libz.dll.a \
@@ -30,7 +30,7 @@ if [ -z "$toolchain_file" ]; then
fi
echo "Using $toolchain_file"

irrlicht_version=1.9.0mt1
irrlicht_version=1.9.0mt2
ogg_version=1.3.4
vorbis_version=1.3.7
curl_version=7.76.1
@@ -97,7 +97,7 @@ cd $builddir
mkdir build
cd build

irr_dlls=$(echo $libdir/irrlicht/bin/*.dll | tr ' ' ';')
irr_dlls=$(echo $libdir/irrlicht/lib/*.dll | tr ' ' ';')
vorbis_dlls=$(echo $libdir/libvorbis/bin/libvorbis{,file}-*.dll | tr ' ' ';')
gettext_dlls=$(echo $libdir/gettext/bin/lib{intl,iconv}-*.dll | tr ' ' ';')

@@ -113,9 +113,7 @@ cmake -S $sourcedir -B . \
-DENABLE_FREETYPE=1 \
-DENABLE_LEVELDB=1 \
\
-DIRRLICHT_INCLUDE_DIR=$libdir/irrlicht/include/irrlichtmt \
-DIRRLICHT_LIBRARY=$libdir/irrlicht/lib/libIrrlichtMt.dll.a \
-DIRRLICHT_DLL="$irr_dlls" \
-DCMAKE_PREFIX_PATH=$libdir/irrlicht \
\
-DZLIB_INCLUDE_DIR=$libdir/zlib/include \
-DZLIB_LIBRARIES=$libdir/zlib/lib/libz.dll.a \
@@ -11,9 +11,7 @@ install_linux_deps() {
shift
pkgs+=(libirrlicht-dev)
else
# TODO: return old URL when IrrlichtMt 1.9.0mt2 is tagged
#wget "https://github.com/minetest/irrlicht/releases/download/1.9.0mt1/ubuntu-bionic.tar.gz"
wget "http://minetest.kitsunemimi.pw/irrlichtmt-patched-temporary.tgz" -O ubuntu-bionic.tar.gz
wget "https://github.com/minetest/irrlicht/releases/download/1.9.0mt2/ubuntu-bionic.tar.gz"
sudo tar -xaf ubuntu-bionic.tar.gz -C /usr/local
fi

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