qt5base-lts/mkspecs/features/wasm/emcc_ver.prf

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defineReplace(qtEmccRecommendedVersion) {
return (1.38.27)
}
defineReplace(qtSystemEmccVersion) {
E_VERSION = $$system("emcc -v 2>&1 | perl -alne $$shell_quote($_ = $F[9]; s/://; print;) ")
return ($${E_VERSION})
}
defineTest(qtConfTest_emccVersion) {
REQ_VERSION = $$qtEmccRecommendedVersion()
EMCC_VERSION = $$qtSystemEmccVersion()
!defined(QT_EMCC_VERSION, var):!equals(EMCC_VERSION, $${REQ_VERSION}) {
warning ("You should use the recommended Emscripten version $$REQ_VERSION with this Qt. You have $${EMCC_VERSION} ")
}
contains(TEMPLATE, .*app) {
!equals(QT_EMCC_VERSION, $$EMCC_VERSION) {
warning("This Qt was built with Emscripten version $${QT_EMCC_VERSION}. You have $${EMCC_VERSION}. The difference may cause issues.")
}
}
}