Retro68/Samples/SharedLibrary/CMakeLists.txt
2021-12-11 18:08:51 +01:00

82 lines
2.9 KiB
CMake

# Copyright 2019 Wolfgang Thaller.
#
# This file is part of Retro68.
#
# Retro68 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.
#
# Retro68 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 Retro68. If not, see <http://www.gnu.org/licenses/>.
# This example does nothing useful, but it does it using a shared library.
# Doesn't run on 68K.
# Step 1: Tell CMake to compile the library.
# (CMake writes the output to an XCOFF file named libLibrary.so)
add_library(Library SHARED library.c library.h)
if(TARGET retrocrt)
# Hack: if we are building as part of the Retro68 source tree,
# make sure the run-time library is already compiled
# (not needed for standalone projects)
add_dependencies(Library retrocrt)
endif(TARGET retrocrt)
# Step 2: Tell the linker to export symbols.
# Either export everything:
# target_link_options(Library PUBLIC -Wl,-bexpfull)
# Or tell it to use an export list from a separate file:
# (CMake 3.13 or later)
# target_link_options(Library PUBLIC -Wl,-bE:${CMAKE_CURRENT_SOURCE_DIR}/library.exp)
set_target_properties(Library PROPERTIES LINK_FLAGS -Wl,-bE:${CMAKE_CURRENT_SOURCE_DIR}/library.exp)
# Note: Step 1 & 2 are equivalent to the command:
# powerpc-apple-macos-gcc -shared -Wl,-bE:library.exp library.c -o libLibrary.so
# Step 3: Convert the library to PEF format:
add_custom_command(
OUTPUT Library.pef
COMMAND ${MAKE_PEF} "libLibrary.so" -o "Library.pef"
DEPENDS Library)
# Step 4: Combine the PEF data fork with a resource fork containing a cfrg resource:
if (REZ_INCLUDE_PATH)
set(REZ_INCLUDE_FLAG -I${REZ_INCLUDE_PATH})
endif()
add_custom_command(
OUTPUT Library.bin Library Library.dsk Library.ad "%Library.ad"
COMMAND ${REZ}
${REZ_FLAGS}
${CMAKE_CURRENT_SOURCE_DIR}/library.r
${REZ_INCLUDE_FLAG}
-o "Library.bin" --cc "Library.dsk" --cc "Library"
--cc "%Library.ad"
-t "shlb" -c "????"
--data Library.pef
DEPENDS Library.pef ${rsrc_files})
# Step 5: Create a CMake custom target so CMake knows that Steps 3 and 4 need to be done
add_custom_target(Library_APPL ALL DEPENDS Library.bin)
# Step 6: Create the main application
# (the add_applicatin macro works similarly to the commands above, but for applications.)
add_application(Application application.c)
# Step 7: Link the application to the library target (the XCOFF version of the library!)
target_link_libraries(Application Library)