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wasm: handle missing qconfig.h

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There's no guarantee that qconfig.h will be present
when __qt_internal_get_qt_build_emsdk_version() is called
during configure, since the file is written by a file(GENERATE)
call which does not write the file immediately.

Handle this case and allow configure to complete.

Change-Id: Iab85790f9f133fd1ba5f276cdd7bc55f9af1d980
Pick-to: 6.6
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>
Reviewed-by: Piotr Wierciński <piotr.wiercinski@qt.io>
This commit is contained in:
Morten Sørvig 2023-08-15 14:08:22 +02:00 committed by Morten Johan Sørvig
parent fa522eb8be
commit f7953cdee6
1 changed files with 8 additions and 4 deletions
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12
cmake/QtPublicWasmToolchainHelpers.cmake
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@ -81,12 +81,16 @@ function(__qt_internal_get_qt_build_emsdk_version out_var)
endif()
if(EXISTS "${WASM_BUILD_DIR}/src/corelib/global/qconfig.h")
file(READ "${WASM_BUILD_DIR}/src/corelib/global/qconfig.h" ver)
else()
elseif(EXISTS "${WASM_BUILD_DIR}/include/QtCore/qconfig.h")
file(READ "${WASM_BUILD_DIR}/include/QtCore/qconfig.h" ver)
else()
message("qconfig.h not found, unable to determine Qt build Emscripten version")
endif()
if (ver)
string(REGEX MATCH "#define QT_EMCC_VERSION.\"[0-9]+\\.[0-9]+\\.[0-9]+\"" emOutput ${ver})
string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" build_emcc_version "${emOutput}")
set(${out_var} "${build_emcc_version}" PARENT_SCOPE)
endif()
string(REGEX MATCH "#define QT_EMCC_VERSION.\"[0-9]+\\.[0-9]+\\.[0-9]+\"" emOutput ${ver})
string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" build_emcc_version "${emOutput}")
set(${out_var} "${build_emcc_version}" PARENT_SCOPE)
endfunction()
function(_qt_test_emscripten_version)