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Add iOS headless building support #501

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Add iOS headless building support #501

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31 changes: 24 additions & 7 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -116,6 +116,23 @@ else()
set(TARGET_ARCH ${CMAKE_SYSTEM_PROCESSOR})
endif()

#If we are building for iOS, attempt to avoid code signing
#This is a useful default for building in complex build chains
if(IOS)
set(DISABLE_CODESIGNED_EXECUTABLES TRUE)
endif()

macro(add_executable_or_lib_if_codesign)
if(DISABLE_CODESIGNED_EXECUTABLES)
set(args "${ARGV}")
set(arg0 "${ARGV0}")
list(REMOVE_AT args 0)
add_library(${arg0} STATIC ${args})
else()
add_executable(${ARGV})
endif()
endmacro()

if(PNG_HARDWARE_OPTIMIZATIONS)

# Set definitions and sources for ARM.
Expand Down Expand Up @@ -741,14 +758,14 @@ if(PNG_TESTS AND PNG_SHARED)

set(PNGTEST_PNG "${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png")

add_executable(pngtest ${pngtest_sources})
add_executable_or_lib_if_codesign(pngtest ${pngtest_sources})
target_link_libraries(pngtest PRIVATE png_shared)

png_add_test(NAME pngtest
COMMAND pngtest
FILES "${PNGTEST_PNG}")

add_executable(pngvalid ${pngvalid_sources})
add_executable_or_lib_if_codesign(pngvalid ${pngvalid_sources})
target_link_libraries(pngvalid PRIVATE png_shared)

png_add_test(NAME pngvalid-gamma-16-to-8
Expand Down Expand Up @@ -794,7 +811,7 @@ if(PNG_TESTS AND PNG_SHARED)
COMMAND pngvalid
OPTIONS --transform)

add_executable(pngstest ${pngstest_sources})
add_executable_or_lib_if_codesign(pngstest ${pngstest_sources})
target_link_libraries(pngstest PRIVATE png_shared)

foreach(gamma_type 1.8 linear none sRGB)
Expand Down Expand Up @@ -849,7 +866,7 @@ if(PNG_TESTS AND PNG_SHARED)
endforeach()
endforeach()

add_executable(pngunknown ${pngunknown_sources})
add_executable_or_lib_if_codesign(pngunknown ${pngunknown_sources})
target_link_libraries(pngunknown PRIVATE png_shared)

png_add_test(NAME pngunknown-discard
Expand Down Expand Up @@ -881,7 +898,7 @@ if(PNG_TESTS AND PNG_SHARED)
OPTIONS --strict vpAg=if-safe
FILES "${PNGTEST_PNG}")

add_executable(pngimage ${pngimage_sources})
add_executable_or_lib_if_codesign(pngimage ${pngimage_sources})
target_link_libraries(pngimage PRIVATE png_shared)

png_add_test(NAME pngimage-quick
Expand All @@ -895,11 +912,11 @@ if(PNG_TESTS AND PNG_SHARED)
endif()

if(PNG_SHARED AND PNG_TOOLS)
add_executable(pngfix ${pngfix_sources})
add_executable_or_lib_if_codesign(pngfix ${pngfix_sources})
target_link_libraries(pngfix PRIVATE png_shared)
set(PNG_BIN_TARGETS pngfix)

add_executable(png-fix-itxt ${png_fix_itxt_sources})
add_executable_or_lib_if_codesign(png-fix-itxt ${png_fix_itxt_sources})
target_link_libraries(png-fix-itxt PRIVATE ${ZLIB_LIBRARIES} ${M_LIBRARY})
list(APPEND PNG_BIN_TARGETS png-fix-itxt)
endif()
Expand Down