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Merge "cmake: fix compilation w/Xcode generator"

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James Zern 2020-11-24 01:31:26 +00:00 committed by Gerrit Code Review
commit 5abb55823b
1 changed files with 29 additions and 0 deletions
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29
CMakeLists.txt
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@ -169,6 +169,29 @@ add_definitions(-DHAVE_CONFIG_H)
# ############################################################################## # ##############################################################################
# Build the webpdecoder library. # Build the webpdecoder library.
# Creates a source file with an unused stub function in $CMAKE_BINARY_DIR and
# adds it to the specified target. Currently used only with Xcode.
#
# See also:
# https://cmake.org/cmake/help/v3.18/command/add_library.html#object-libraries
# "Some native build systems (such as Xcode) may not like targets that have
# only object files, so consider adding at least one real source file to any
# target that references $<TARGET_OBJECTS:objlib>."
function(libwebp_add_stub_file TARGET)
set(stub_source_dir "${CMAKE_BINARY_DIR}")
set(stub_source_file
"${stub_source_dir}/libwebp_${TARGET}_stub.c")
set(stub_source_code
"// Generated file. DO NOT EDIT!\n"
"// C source file created for target ${TARGET}.\n"
"void libwebp_${TARGET}_stub_function(void)\;\n"
"void libwebp_${TARGET}_stub_function(void) {}\n")
file(WRITE "${stub_source_file}" ${stub_source_code})
target_sources(${TARGET} PRIVATE ${stub_source_file})
endfunction()
if(MSVC) if(MSVC)
# avoid security warnings for e.g., fopen() used in the examples. # avoid security warnings for e.g., fopen() used in the examples.
add_definitions(-D_CRT_SECURE_NO_WARNINGS) add_definitions(-D_CRT_SECURE_NO_WARNINGS)
@ -195,6 +218,9 @@ add_library(webpdecoder
$<TARGET_OBJECTS:webpdecode> $<TARGET_OBJECTS:webpdecode>
$<TARGET_OBJECTS:webpdspdecode> $<TARGET_OBJECTS:webpdspdecode>
$<TARGET_OBJECTS:webputilsdecode>) $<TARGET_OBJECTS:webputilsdecode>)
if(XCODE)
libwebp_add_stub_file(webpdecoder)
endif()
target_link_libraries(webpdecoder ${WEBP_DEP_LIBRARIES}) target_link_libraries(webpdecoder ${WEBP_DEP_LIBRARIES})
target_include_directories( target_include_directories(
webpdecoder webpdecoder
@ -234,6 +260,9 @@ add_library(webp
$<TARGET_OBJECTS:webpdsp> $<TARGET_OBJECTS:webpdsp>
$<TARGET_OBJECTS:webpencode> $<TARGET_OBJECTS:webpencode>
$<TARGET_OBJECTS:webputils>) $<TARGET_OBJECTS:webputils>)
if(XCODE)
libwebp_add_stub_file(webp)
endif()
target_link_libraries(webp ${WEBP_DEP_LIBRARIES}) target_link_libraries(webp ${WEBP_DEP_LIBRARIES})
target_include_directories(webp target_include_directories(webp
PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}