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cmake: add WEBP_USE_THREAD option

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this controls the config.h define of the same name and matches the
behavior of configure's --disable-threading

Bug: webp:502
Change-Id: Id135bbf4e6b3c9900e2b4f4f7ab744b3457ce41c
This commit is contained in:
James Zern 2021-02-05 15:05:29 -08:00
parent 926ce921f3
commit 759b9d5a06
2 changed files with 18 additions and 17 deletions
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2
CMakeLists.txt
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@ -29,6 +29,7 @@ option(WEBP_BUILD_WEBPINFO "Build the webpinfo command line tool." ON)
option(WEBP_BUILD_WEBPMUX "Build the webpmux command line tool." ON)
option(WEBP_BUILD_EXTRAS "Build extras." ON)
option(WEBP_BUILD_WEBP_JS "Emscripten build of webp.js." OFF)
option(WEBP_USE_THREAD "Enable threading support" ON)
option(WEBP_NEAR_LOSSLESS "Enable near-lossless encoding" ON)
option(WEBP_ENABLE_SWAP_16BIT_CSP "Enable byte swap for 16 bit colorspaces."
OFF)
@ -50,6 +51,7 @@ if(WEBP_BUILD_WEBP_JS)
set(WEBP_BUILD_WEBPINFO OFF)
set(WEBP_BUILD_WEBPMUX OFF)
set(WEBP_BUILD_EXTRAS OFF)
set(WEBP_USE_THREAD OFF)
if(WEBP_ENABLE_SIMD)
message("wasm2js does not support SIMD, disabling webp.js generation.")

5
cmake/deps.cmake
View File

@ -22,10 +22,8 @@ check_c_source_compiles("
" HAVE_BUILTIN_BSWAP64)
# Check for libraries.
if(NOT WEBP_BUILD_WEBP_JS)
# Disable pThreads for WASM.
if(WEBP_USE_THREAD)
find_package(Threads)
endif()
if(Threads_FOUND)
# work around cmake bug on QNX (https://cmake.org/Bug/view.php?id=11333)
if(CMAKE_USE_PTHREADS_INIT AND NOT CMAKE_SYSTEM_NAME STREQUAL "QNX")
@ -42,6 +40,7 @@ if(Threads_FOUND)
list(APPEND WEBP_DEP_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
endif()
set(WEBP_USE_THREAD ${Threads_FOUND})
endif()
# TODO: this seems unused, check with autotools.
set(LT_OBJDIR ".libs/")