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Compile avif_apps_internal without -DAVIF_DLL
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In shared library builds (-DBUILD_SHARED_LIBS=ON), compile the source
files in the avif_apps_internal static library without -DAVIF_DLL.

Also link avif_obj with the m and Threads::Threads libraries in the
PRIVATE scope instead of the PUBLIC scope.

Fix AOMediaCodec#2339.
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@wantehchang
wantehchang committed Jul 30, 2024
1 parent df33ccb commit e7169b3
Showing 1 changed file with 28 additions and 30 deletions.
58 changes: 28 additions & 30 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -455,7 +455,7 @@ if(UNIX OR MINGW)
# Find out if we have threading available
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads)
target_link_libraries(avif_obj PUBLIC m Threads::Threads)
target_link_libraries(avif_obj PRIVATE m Threads::Threads)
endif()

if(NOT AVIF_LIBYUV_ENABLED)
Expand Down Expand Up @@ -676,45 +676,43 @@ if(AVIF_BUILD_APPS OR (AVIF_BUILD_TESTS AND (AVIF_ENABLE_FUZZTEST OR AVIF_ENABLE
find_package(JPEG REQUIRED)
endif()

add_library(
avif_apps_obj OBJECT apps/shared/avifexif.c apps/shared/avifjpeg.c apps/shared/avifpng.c apps/shared/avifutil.c
apps/shared/iccmaker.c apps/shared/y4m.c third_party/iccjpeg/iccjpeg.c
)
# Instead of building avif_apps/avif_apps_internal and linking to avif/avif_internal, avif_apps_obj only does one compilation.
# Still, the compile definitions needs to be passed from avif to avif_apps. The following also passes them to avif_apps_internal but AVIF_DLL does not impact avif_apps_internal.
target_compile_definitions(avif_apps_obj PRIVATE $<BUILD_INTERFACE:$<TARGET_PROPERTY:avif,INTERFACE_COMPILE_DEFINITIONS>>)
target_link_libraries(avif_apps_obj PUBLIC avif_obj PNG::PNG ZLIB::ZLIB JPEG::JPEG)
target_link_libraries(avif_apps_obj PRIVATE avif_enable_warnings)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
target_link_libraries(avif_apps_obj PRIVATE m)
endif()
# In GitHub CI's macos-latest os image, /usr/local/include has not only the headers of libpng
# and libjpeg but also the headers of an older version of libavif. Put the avif include
# directory before ${PNG_PNG_INCLUDE_DIR} ${JPEG_INCLUDE_DIR} to prevent picking up old libavif
# headers from /usr/local/include.
target_include_directories(avif_apps_obj PRIVATE third_party/iccjpeg)
target_include_directories(avif_apps_obj SYSTEM PRIVATE ${PNG_PNG_INCLUDE_DIR} ${JPEG_INCLUDE_DIR})

if(AVIF_ENABLE_EXPERIMENTAL_GAIN_MAP)
if(TARGET LibXml2::LibXml2)
set(AVIF_ENABLE_EXPERIMENTAL_JPEG_GAIN_MAP_CONVERSION TRUE)
add_compile_definitions(AVIF_ENABLE_EXPERIMENTAL_JPEG_GAIN_MAP_CONVERSION)
target_link_libraries(avif_apps_obj PRIVATE LibXml2::LibXml2)
else()
message(STATUS "libavif: libxml2 not found; avifenc will ignore any gain map in jpeg files")
endif()
endif()

set(AVIF_APPS_SRCS apps/shared/avifexif.c apps/shared/avifjpeg.c apps/shared/avifpng.c apps/shared/avifutil.c
apps/shared/iccmaker.c apps/shared/y4m.c third_party/iccjpeg/iccjpeg.c
)

macro(add_avif_apps_library suffix)
add_library(avif_apps${suffix} STATIC ${AVIF_APPS_SRCS})
target_link_libraries(avif_apps${suffix} PUBLIC avif${suffix} PRIVATE PNG::PNG ZLIB::ZLIB JPEG::JPEG avif_enable_warnings)
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
target_link_libraries(avif_apps${suffix} PRIVATE m)
endif()
if(AVIF_ENABLE_EXPERIMENTAL_JPEG_GAIN_MAP_CONVERSION)
target_link_libraries(avif_apps${suffix} PRIVATE LibXml2::LibXml2)
endif()
target_include_directories(avif_apps${suffix} INTERFACE apps/shared)
# In GitHub CI's macos-latest os image, /usr/local/include has not only the headers of libpng
# and libjpeg but also the headers of an older version of libavif. Put the avif include
# directory before ${PNG_PNG_INCLUDE_DIR} ${JPEG_INCLUDE_DIR} to prevent picking up old libavif
# headers from /usr/local/include.
target_include_directories(avif_apps${suffix} PRIVATE third_party/iccjpeg)
target_include_directories(avif_apps${suffix} SYSTEM PRIVATE ${PNG_PNG_INCLUDE_DIR} ${JPEG_INCLUDE_DIR})
endmacro()

# Main avif_apps library.
add_library(avif_apps STATIC)
target_link_libraries(avif_apps PUBLIC avif PRIVATE avif_apps_obj)
target_include_directories(avif_apps INTERFACE apps/shared)
add_avif_apps_library("")

# avif_apps_internal is to use when linking to avif_internal.
if(BUILD_SHARED_LIBS)
add_library(avif_apps_internal STATIC)
target_link_libraries(avif_apps_internal PUBLIC avif_internal PRIVATE avif_apps_obj)
target_include_directories(avif_apps_internal INTERFACE apps/shared)
add_avif_apps_library(_internal)
else()
add_library(avif_apps_internal ALIAS avif_apps)
endif()
Expand All @@ -739,7 +737,7 @@ if(AVIF_BUILD_APPS)
if(AVIF_LIB_USE_CXX)
set_target_properties(avifenc PROPERTIES LINKER_LANGUAGE "CXX")
endif()
target_link_libraries(avifenc avif_apps avif_enable_warnings)
target_link_libraries(avifenc avif_apps avif avif_enable_warnings)
add_executable(avifdec apps/avifdec.c)
if(WIN32)
target_sources(avifdec PRIVATE apps/utf8.rc)
Expand All @@ -750,7 +748,7 @@ if(AVIF_BUILD_APPS)
if(AVIF_LIB_USE_CXX)
set_target_properties(avifdec PROPERTIES LINKER_LANGUAGE "CXX")
endif()
target_link_libraries(avifdec avif_apps avif_enable_warnings)
target_link_libraries(avifdec avif_apps avif avif_enable_warnings)

if(NOT SKIP_INSTALL_APPS AND NOT SKIP_INSTALL_ALL)
install(
Expand Down Expand Up @@ -785,7 +783,7 @@ if(AVIF_BUILD_APPS)
endif()
set_target_properties(avifgainmaputil PROPERTIES LINKER_LANGUAGE "CXX")
target_include_directories(avifgainmaputil PRIVATE apps/avifgainmaputil/)
target_link_libraries(avifgainmaputil libargparse avif_apps avif_enable_warnings)
target_link_libraries(avifgainmaputil libargparse avif_apps avif avif_enable_warnings)
# Don't add avifgainmaputil to installed apps for now.
endif()
endif()
Expand Down

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