1 files changed, 75 insertions, 0 deletions
diff --git a/mkspecs/wasm-emscripten/qmake.conf b/mkspecs/wasm-emscripten/qmake.conf
new file mode 100644
index 0000000000..bf46a063a1
--- /dev/null
+++ b/mkspecs/wasm-emscripten/qmake.conf
@@ -0,0 +1,75 @@
+# qmake configuration for building with emscripten
+MAKEFILE_GENERATOR      = UNIX
+QMAKE_PLATFORM          = wasm unix
+
+include(../common/gcc-base.conf)
+include(../common/clang.conf)
+
+EMTERP_FLAGS = -s EMTERPRETIFY=1  -s EMTERPRETIFY_ASYNC=1 -s \"EMTERPRETIFY_FILE=\'data.binary\'\" -s ASSERTIONS=1 --profiling-funcs
+
+EMCC_COMMON_LFLAGS      = --bind -s USE_ZLIB=1 -s USE_LIBPNG=1 -s USE_FREETYPE=1 -s ERROR_ON_UNDEFINED_SYMBOLS=1
+EMCC_COMMON_LFLAGS      += -s FULL_ES2=1 -s ALLOW_MEMORY_GROWTH=1 -s USE_WEBGL2=1 -s NO_EXIT_RUNTIME=0
+
+# -s DEMANGLE_SUPPORT=1
+# -s USE_WEBGL2=1
+# -s DISABLE_EXCEPTION_CATCHING=1
+# -s TOTAL_STACK=15*1024*1024
+
+EMCC_COMMON_LFLAGS_DEBUG = $$EMCC_COMMON_LFLAGS -s ASSERTIONS=2 -s DEMANGLE_SUPPORT=1 -s GL_DEBUG=1
+
+# -s LIBRARY_DEBUG=1
+# -s SYSCALL_DEBUG=1
+# -s GL_DEBUG=1
+# -s FS_LOG=1
+
+QMAKE_COMPILER         += emscripten
+
+QMAKE_CC                = emcc
+QMAKE_CXX               = em++
+
+# QMAKE_CFLAGS_THREAD     = -s USE_PTHREADS=1
+# QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
+
+QMAKE_CFLAGS           += $$EMCC_COMMON_LFLAGS
+QMAKE_CXXFLAGS         += $$EMCC_COMMON_LFLAGS
+
+# Practical debugging setup:
+#    "-g4" preserves function names for stack traces
+#    "-Os" produces reasonably sized binaries
+QMAKE_CFLAGS_DEBUG     -= -g
+QMAKE_CXXFLAGS_DEBUG   -= -g
+QMAKE_CFLAGS_DEBUG     += -Os -g4
+QMAKE_CXXFLAGS_DEBUG   += -Os -g4
+QMAKE_LFLAGS_DEBUG += -Os -g4
+
+QMAKE_CXXFLAGS_RELEASE -= -O2
+QMAKE_CXXFLAGS_RELEASE += -O3
+QMAKE_CFLAGS_RELEASE -= -O2
+QMAKE_CFLAGS_RELEASE += -O3
+QMAKE_LFLAGS_RELEASE += -O3
+MAKE_CFLAGS_OPTIMIZE += -O3
+MAKE_CFLAGS_OPTIMIZE_FULL += -Oz
+
+QMAKE_LINK              = $$QMAKE_CXX
+QMAKE_LINK_SHLIB        = $$QMAKE_CXX
+QMAKE_LINK_C            = $$QMAKE_CC
+QMAKE_LINK_C_SHLIB      = $$QMAKE_CC
+
+QMAKE_LIBS_THREAD       = $$QMAKE_CFLAGS_THREAD
+
+QMAKE_LFLAGS            += $$EMCC_COMMON_LFLAGS
+QMAKE_LFLAGS_DEBUG      += $$EMCC_COMMON_LFLAGS_DEBUG
+
+QMAKE_PREFIX_SHLIB      = lib
+QMAKE_EXTENSION_SHLIB   = so       # llvm bitcode, linked to js in post_link
+QMAKE_PREFIX_STATICLIB  = lib
+QMAKE_EXTENSION_STATICLIB = a      # llvm bitcode
+
+QMAKE_AR                = emar cqs
+QMAKE_CLEAN            += *.html *.js *.wasm
+
+DEFINES += QT_NO_QFUTURE
+QT_QPA_DEFAULT_PLATFORM = webassembly
+
+QTPLUGIN.platforms = wasm
+load(qt_config)