66 lines
2.7 KiB
CMake
66 lines
2.7 KiB
CMake
# Orthanc - A Lightweight, RESTful DICOM Store
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# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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# Department, University Hospital of Liege, Belgium
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# Copyright (C) 2017-2023 Osimis S.A., Belgium
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# Copyright (C) 2024-2025 Orthanc Team SRL, Belgium
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# Copyright (C) 2021-2025 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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#
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# This program is free software: you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public License
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# as published by the Free Software Foundation, either version 3 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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# https://github.com/emscripten-core/emscripten/blob/master/src/settings.js
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if (NOT "${EMSCRIPTEN_TRAP_MODE}" STREQUAL "")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s BINARYEN_TRAP_MODE='\"${EMSCRIPTEN_TRAP_MODE}\"'")
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endif()
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# If "-O3" is used (the default in "Release" mode), this results in a
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# too large memory consumption in "wasm-opt", at least in Emscripten
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# 3.1.7, which ultimately crashes the compiler. So we force "-O2"
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# (this also has the advantage of speeding up the build):
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set(CMAKE_CXX_FLAGS_RELEASE "-O2 -DNDEBUG")
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# "DISABLE_EXCEPTION_CATCHING" is a "compile+link" option. HOWEVER,
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# setting it inside "WASM_FLAGS" creates link errors, at least with
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# side modules. TODO: Understand why
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -s DISABLE_EXCEPTION_CATCHING=0")
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# "-Wno-unused-command-line-argument" is used to avoid annoying
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# warnings about setting WASM, FETCH and ASSERTIONS, which was
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# required for earlier versions of emsdk:
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# https://groups.google.com/g/emscripten-discuss/c/VX4enWfadUE
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set(WASM_FLAGS "${WASM_FLAGS} -Wno-unused-command-line-argument")
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#set(WASM_FLAGS "${WASM_FLAGS} -s DISABLE_EXCEPTION_CATCHING=0")
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if (EMSCRIPTEN_TARGET_MODE STREQUAL "wasm")
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# WebAssembly
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set(WASM_FLAGS "${WASM_FLAGS} -s WASM=1")
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elseif (EMSCRIPTEN_TARGET_MODE STREQUAL "asm.js")
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# asm.js targeting IE 11
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set(WASM_FLAGS "-s WASM=0 -s ASM_JS=2 -s LEGACY_VM_SUPPORT=1")
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else()
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message(FATAL_ERROR "Bad value for EMSCRIPTEN_TARGET_MODE: ${EMSCRIPTEN_TARGET_MODE}")
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endif()
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if (CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(WASM_FLAGS "${WASM_FLAGS} -s SAFE_HEAP=1 -s ASSERTIONS=1")
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endif()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WASM_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WASM_FLAGS}")
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