Add library st_audiofile_formats usable separately

common.mk

@@ -154,6 +154,11 @@ SFIZZ_SOURCES += \
 	external/st_audiofile/src/st_audiofile_libs.c \
 	external/st_audiofile/src/st_audiofile_sndfile.c
 
+ifneq ($(SFIZZ_USE_SNDFILE),1)
+SFIZZ_SOURCES += \
+	external/st_audiofile/src/st_audiofile_libs.c
+endif
+
 SFIZZ_C_FLAGS += \
 	-I$(SFIZZ_DIR)/external/st_audiofile/src \
 	-I$(SFIZZ_DIR)/external/st_audiofile/thirdparty/dr_libs

external/st_audiofile/CMakeLists.txt

@@ -4,24 +4,27 @@ project(st_audiofile)
 option(ST_AUDIO_FILE_USE_SNDFILE "Use sndfile" OFF)
 set(ST_AUDIO_FILE_EXTERNAL_SNDFILE "" CACHE STRING "Name of external sndfile target")
 
-add_library(st_audiofile STATIC
+add_library(st_audiofile STATIC EXCLUDE_FROM_ALL
     "src/st_audiofile.c"
     "src/st_audiofile_common.c"
-    "src/st_audiofile_libs.c"
     "src/st_audiofile_sndfile.c")
 target_include_directories(st_audiofile
+    PUBLIC "src")
+
+###
+add_library(st_audiofile_formats STATIC EXCLUDE_FROM_ALL
+    "src/st_audiofile_libs.c")
+target_include_directories(st_audiofile_formats
     PUBLIC "src"
     PUBLIC "thirdparty/dr_libs"
     PUBLIC "thirdparty/stb_vorbis")
 
-add_executable(st_info
-    "src/st_info.c")
-target_link_libraries(st_info
-    PRIVATE st_audiofile)
+add_subdirectory("thirdparty/libaiff" EXCLUDE_FROM_ALL)
+target_link_libraries(st_audiofile_formats PUBLIC aiff::aiff)
 
+###
 if(NOT ST_AUDIO_FILE_USE_SNDFILE)
-    add_subdirectory("thirdparty/libaiff" EXCLUDE_FROM_ALL)
-    target_link_libraries(st_audiofile PRIVATE aiff::aiff)
+    target_link_libraries(st_audiofile PRIVATE st_audiofile_formats)
 else()
     target_compile_definitions(st_audiofile
         PUBLIC "ST_AUDIO_FILE_USE_SNDFILE=1")
@@ -31,11 +34,12 @@ else()
     else()
         find_package(PkgConfig REQUIRED)
         pkg_check_modules(Sndfile "sndfile" REQUIRED)
-        target_include_directories(st_audiofile
-            PUBLIC ${Sndfile_INCLUDE_DIRS})
-        target_link_libraries(st_audiofile
-            PUBLIC ${Sndfile_LIBRARIES})
-        link_directories(
-            ${Sndfile_LIBRARY_DIRS})
+        target_include_directories(st_audiofile PUBLIC ${Sndfile_INCLUDE_DIRS})
+        target_link_libraries(st_audiofile PUBLIC ${Sndfile_LIBRARIES})
+        link_directories(${Sndfile_LIBRARY_DIRS})
     endif()
 endif()
+
+###
+add_executable(st_info "src/st_info.c")
+target_link_libraries(st_info PRIVATE st_audiofile)

external/st_audiofile/src/st_audiofile_libs.c

@@ -4,7 +4,6 @@
 // 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
 
-#if !defined(ST_AUDIO_FILE_USE_SNDFILE)
 #define DR_WAV_IMPLEMENTATION
 #define DR_FLAC_IMPLEMENTATION
 #define DR_MP3_IMPLEMENTATION
@@ -28,5 +27,3 @@ stb_vorbis* stb_vorbis_open_filename_w(const wchar_t* filename, int* error, cons
    return NULL;
 }
 #endif
-
-#endif // !defined(ST_AUDIO_FILE_USE_SNDFILE)