System-dependent options

.github/workflows/build.yml

@@ -117,7 +117,7 @@ jobs:
       run: |
         mod-plugin-builder /usr/local/bin/cmake "$GITHUB_WORKSPACE" \
          -DSFIZZ_SYSTEM_PROCESSOR=armv7-a \
-         -DCMAKE_BUILD_TYPE=Release -DSFIZZ_JACK=OFF -DSFIZZ_LV2_UI=OFF
+         -DCMAKE_BUILD_TYPE=Release -DSFIZZ_JACK=OFF -DSFIZZ_VST=OFF -DSFIZZ_LV2_UI=OFF
     - name: Build
       shell: bash
       working-directory: ${{runner.workspace}}/build

CMakeLists.txt

@@ -16,24 +16,26 @@ set (CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 include (BuildType)
 
 # Build Options
+include (OptionEx)
+
 set (BUILD_TESTING OFF CACHE BOOL "Disable Abseil's tests [default: OFF]")
 
-option (ENABLE_LTO              "Enable Link Time Optimization [default: ON]" ON)
+option_ex (ENABLE_LTO              "Enable Link Time Optimization" ON)
-option (SFIZZ_JACK              "Enable JACK stand-alone build [default: ON]" ON)
+option_ex (SFIZZ_JACK              "Enable JACK stand-alone build" CMAKE_SYSTEM_NAME STREQUAL "Linux")
-option (SFIZZ_RENDER            "Enable renderer of SMF files [default: ON]" ON)
+option_ex (SFIZZ_RENDER            "Enable renderer of SMF files" ON)
-option (SFIZZ_LV2               "Enable LV2 plug-in build [default: ON]" ON)
+option_ex (SFIZZ_LV2               "Enable LV2 plug-in build" ON)
-option (SFIZZ_LV2_UI            "Enable LV2 plug-in user interface [default: ON]" ON)
+option_ex (SFIZZ_LV2_UI            "Enable LV2 plug-in user interface" ON)
-option (SFIZZ_VST               "Enable VST plug-in build [default: OFF]" OFF)
+option_ex (SFIZZ_VST               "Enable VST plug-in build" ON)
-option (SFIZZ_AU                "Enable AU plug-in build [default: OFF]" OFF)
+option_ex (SFIZZ_AU                "Enable AU plug-in build" APPLE)
-option (SFIZZ_BENCHMARKS        "Enable benchmarks build [default: OFF]" OFF)
+option_ex (SFIZZ_BENCHMARKS        "Enable benchmarks build" OFF)
-option (SFIZZ_TESTS             "Enable tests build [default: OFF]" OFF)
+option_ex (SFIZZ_TESTS             "Enable tests build" OFF)
-option (SFIZZ_DEMOS             "Enable feature demos build [default: OFF]" OFF)
+option_ex (SFIZZ_DEMOS             "Enable feature demos build" OFF)
-option (SFIZZ_DEVTOOLS          "Enable developer tools build [default: OFF]" OFF)
+option_ex (SFIZZ_DEVTOOLS          "Enable developer tools build" OFF)
-option (SFIZZ_SHARED            "Enable shared library build [default: ON]" ON)
+option_ex (SFIZZ_SHARED            "Enable shared library build" ON)
-option (SFIZZ_USE_SNDFILE       "Enable use of the sndfile library [default: ON]" ON)
+option_ex (SFIZZ_USE_SNDFILE       "Enable use of the sndfile library" ON)
-option (SFIZZ_USE_VCPKG         "Assume that sfizz is build using vcpkg [default: OFF]" OFF)
+option_ex (SFIZZ_USE_VCPKG         "Assume that sfizz is build using vcpkg" OFF)
-option (SFIZZ_STATIC_DEPENDENCIES "Link dependencies statically [default: OFF]" OFF)
+option_ex (SFIZZ_STATIC_DEPENDENCIES "Link dependencies statically" OFF)
-option (SFIZZ_RELEASE_ASSERTS   "Forced assertions in release builds [default: OFF]" OFF)
+option_ex (SFIZZ_RELEASE_ASSERTS   "Forced assertions in release builds" OFF)
 
 include (SfizzConfig)
 include (SfizzDeps)

cmake/OptionEx.cmake

@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: BSD-2-Clause
+
+# This code is part of the sfizz library and is licensed under a BSD 2-clause
+# license. You should have receive a LICENSE.md file along with the code.
+# If not, contact the sfizz maintainers at https://github.com/sfztools/sfizz
+
+# Macro: option_ex(OPTION DOC [CONDITION])
+#    Defines an option, with these characteristics:
+#      - A suffix [default: ON/OFF] is appended to the documentation
+#      - The value is interpreted like a conditional expression
+macro(option_ex option doc)
+    if(${ARGN})
+        set(_value ON)
+    else()
+        set(_value OFF)
+    endif()
+    option("${option}" "${doc} [default: ${_value}]" "${_value}")
+    unset(_value)
+endmacro()

scripts/appveyor/before_build.cmd

@@ -6,7 +6,6 @@ if %platform%==x86 set RELEASE_ARCH=Win32
 if %platform%==x64 set RELEASE_ARCH=x64
 
 cmake .. -G"Visual Studio 16 2019" -A"%RELEASE_ARCH%"^
- -DSFIZZ_JACK=OFF^
  -DSFIZZ_BENCHMARKS=OFF^
  -DSFIZZ_TESTS=ON^
  -DSFIZZ_LV2=ON^

scripts/appveyor/before_build.sh

@@ -6,7 +6,6 @@ mkdir -p build/${INSTALL_DIR} && cd build
 cmake -DCMAKE_BUILD_TYPE=Release \
       -DSFIZZ_VST=ON \
       -DSFIZZ_AU=ON \
-      -DSFIZZ_JACK=OFF \
       -DSFIZZ_RENDER=OFF \
       -DSFIZZ_SHARED=OFF \
       -DSFIZZ_TESTS=ON \