godot/modules/webm/SCsub
Rémi Verschelde c2a669a9f0 SCons: Review uses of CCFLAGS, CXXFLAGS and CPPFLAGS
Many contributors (me included) did not fully understand what CCFLAGS,
CXXFLAGS and CPPFLAGS refer to exactly, and were thus not using them
in the way they are intended to be.

As per the SCons manual: https://www.scons.org/doc/HTML/scons-user/apa.html

- CCFLAGS: General options that are passed to the C and C++ compilers.
- CFLAGS: General options that are passed to the C compiler (C only;
  not C++).
- CXXFLAGS: General options that are passed to the C++ compiler. By
  default, this includes the value of $CCFLAGS, so that setting
  $CCFLAGS affects both C and C++ compilation.
- CPPFLAGS: User-specified C preprocessor options. These will be
  included in any command that uses the C preprocessor, including not
  just compilation of C and C++ source files [...], but also [...]
  Fortran [...] and [...] assembly language source file[s].

TL;DR: Compiler options go to CCFLAGS, unless they must be restricted
to either C (CFLAGS) or C++ (CXXFLAGS). Preprocessor defines go to
CPPFLAGS.
2019-04-24 16:57:58 +02:00

42 lines
1.1 KiB
Python

#!/usr/bin/env python
Import('env')
Import('env_modules')
env_webm = env_modules.Clone()
# Thirdparty source files
thirdparty_dir = "#thirdparty/libsimplewebm/"
thirdparty_sources = [
"libwebm/mkvparser/mkvparser.cc",
"OpusVorbisDecoder.cpp",
"VPXDecoder.cpp",
"WebMDemuxer.cpp",
]
thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
env_webm.Append(CPPPATH=[thirdparty_dir, thirdparty_dir + "libwebm/"])
# upstream uses c++11
if (not env_webm.msvc):
env_webm.Append(CXXFLAGS="-std=c++11")
# also requires libogg, libvorbis and libopus
if env['builtin_libogg']:
env_webm.Append(CPPPATH=["#thirdparty/libogg"])
if env['builtin_libvorbis']:
env_webm.Append(CPPPATH=["#thirdparty/libvorbis"])
if env['builtin_opus']:
env_webm.Append(CPPPATH=["#thirdparty/opus"])
if env['builtin_libvpx']:
env_webm.Append(CPPPATH=["#thirdparty/libvpx"])
SConscript("libvpx/SCsub")
env_thirdparty = env_webm.Clone()
env_thirdparty.disable_warnings()
env_thirdparty.add_source_files(env.modules_sources, thirdparty_sources)
# Godot source files
env_webm.add_source_files(env.modules_sources, "*.cpp")