virtualx-engine/modules/etc/SCsub
Hein-Pieter van Braam d44414c711 Disable -ffast-math for etc2comp
Apparently -ffast-math generates incorrect code with recent versions of
GCC and Clang. The manual page for GCC warns about this possibility.

In my tests it doesn't actually appear to be measurably slower in this
case, and this is used in a batch process so it seems safe to disable
this.

This fixes #10758 and fixes #10070
2017-08-30 11:51:24 +02:00

41 lines
1.1 KiB
Python

#!/usr/bin/env python
Import('env')
Import('env_modules')
env_etc = env_modules.Clone()
# Thirdparty source files
# Not unbundled so far since not widespread as shared library
thirdparty_dir = "#thirdparty/etc2comp/"
thirdparty_sources = [
"EtcBlock4x4.cpp",
"EtcBlock4x4Encoding.cpp",
"EtcBlock4x4Encoding_ETC1.cpp",
"EtcBlock4x4Encoding_R11.cpp",
"EtcBlock4x4Encoding_RG11.cpp",
"EtcBlock4x4Encoding_RGB8A1.cpp",
"EtcBlock4x4Encoding_RGB8.cpp",
"EtcBlock4x4Encoding_RGBA8.cpp",
"Etc.cpp",
"EtcDifferentialTrys.cpp",
"EtcFilter.cpp",
"EtcImage.cpp",
"EtcIndividualTrys.cpp",
"EtcMath.cpp",
"EtcSortedBlockList.cpp",
]
thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
env_etc.add_source_files(env.modules_sources, thirdparty_sources)
env_etc.Append(CPPPATH=[thirdparty_dir])
# Godot source files
env_etc.add_source_files(env.modules_sources, "*.cpp")
# upstream uses c++11
env_etc.Append(CXXFLAGS="-std=gnu++11")
# -ffast-math seems to be incompatible with ec2comp on recent versions of
# GCC and Clang
if '-ffast-math' in env_etc['CCFLAGS']:
env_etc['CCFLAGS'].remove('-ffast-math')