src/.make/buildc_emcc.mk

   1 ##################################################
   2 #Desc:   Web Build System
   3 #Author: Mihrtec LLC
   4 #Date:   2016
   5 ##################################################
   6 #Compile Overrides for web
   7 ##################################################
   8 #EMCC compiles with llvm
   9 CARCH   := llvm
  10 #EMCC outputs to javascript
  11 APPSUF  := .js
  12 #Place JS binary output in dist/js
  13 CBINDIR := $(DISTDIR)/js
  14 #Object files are in LLVM bitcode format
  15 COBJSUF := .bc
  16 #Expand the list of plain-text functions into what emcc expects
  17 EXPORT_FUNCS := $(patsubst %,'_%',$(EXPORT_FUNCS))
  18 EXPORT_LIST := $(shell echo "$(EXPORT_FUNCS)" | sed -e 's@ @, @g')
  19 #Override the linker sed script to find our string
  20 LDSED := sed -e 's!.*rary \"\([a-zA-Z0-9\.]*\)\".*!\1!g'
  21 ##################################################
  22 #Emscripten Ports
  23 #To be replaced.  Emscripten's ports are not
  24 #maintained well.
  25 ##################################################
  26 EMPORTS := SDL2 SDL2_image SDL2_ttf
  27 ifdef EMPORTS
  28 #Remove EMPORTS from the linker
  29 CLIBS := $(filter-out $(EMPORTS), $(CLIBS))
  30 #Add supported ports to CFLAGS
  31 CFLAGS  += -s USE_SDL=2 -s USE_SDL_IMAGE=2 -s USE_SDL_TTF=2
  32 endif
  33
  34 #Override Automake vars (for building libs)
  35 AMGEN  := emconfigure ./autogen.sh
  36 AMCONF := emconfigure ./configure
  37 AMMAKE := emmake
  38
  39 #Set up emscripten APPFLAGS
  40 APPFLAGS += --separate-asm
  41 APPFLAGS += -s ALLOW_MEMORY_GROWTH=1
  42 APPFLAGS += -s FORCE_FILESYSTEM=1
  43 #APPLFAGS += --pre-js pre.js
  44
  45 #Set up emscripten flags for CC
  46 CFLAGS   += -s EXPORTED_FUNCTIONS="[$(EXPORT_LIST)]"
  47