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-rw-r--r--platform/javascript/detect.py17
1 files changed, 13 insertions, 4 deletions
diff --git a/platform/javascript/detect.py b/platform/javascript/detect.py
index a0d6ac9214..7bf3e1bc1d 100644
--- a/platform/javascript/detect.py
+++ b/platform/javascript/detect.py
@@ -24,6 +24,7 @@ def get_opts():
def get_flags():
return [
('tools', False),
+ ('builtin_pcre2_with_jit', False),
# Disabling the mbedtls module reduces file size.
# The module has little use due to the limited networking functionality
# in this platform. For the available networking methods, the browser
@@ -82,10 +83,7 @@ def configure(env):
env['CXX'] = 'em++'
env['LINK'] = 'emcc'
- # Emscripten's ar has issues with duplicate file names, so use cc.
- env['AR'] = 'emcc'
- env['ARFLAGS'] = '-o'
- # emranlib is a noop, so it's safe to use with AR=emcc.
+ env['AR'] = 'emar'
env['RANLIB'] = 'emranlib'
# Use TempFileMunge since some AR invocations are too long for cmd.exe.
@@ -127,8 +125,19 @@ def configure(env):
## Link flags
+ # We use IDBFS in javascript_main.cpp. Since Emscripten 1.39.1 it needs to
+ # be linked explicitly.
+ env.Append(LIBS=['idbfs.js'])
+
env.Append(LINKFLAGS=['-s', 'BINARYEN=1'])
+ # This needs to be defined for Emscripten using 'fastcomp' (default pre-1.39.0)
+ # and undefined if using 'upstream'. And to make things simple, earlier
+ # Emscripten versions didn't include 'fastcomp' in their path, so we check
+ # against the presence of 'upstream' to conditionally add the flag.
+ if not "upstream" in em_config['EMSCRIPTEN_ROOT']:
+ env.Append(LINKFLAGS=['-s', 'BINARYEN_TRAP_MODE=\'clamp\''])
+
# Allow increasing memory buffer size during runtime. This is efficient
# when using WebAssembly (in comparison to asm.js) and works well for
# us since we don't know requirements at compile-time.