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 #redefine EXE directory for web platform
   9 EXEDIR    := $(BINDIR)/web/js
  10 APPSUFFIX := .js
  11 #Override targets to make .bc files
  12 LIBS     := $(filter-out SDL2 SDL2_image SDL2_ttf, $(LIBS))
  13 CLIBS    := $(patsubst %,-l%,$(LIBS))
  14 CTARG    := $(CTARG:.o=.bc)
  15 #Expand the list of plain-text functions into what emcc expects
  16 EXPORT_FUNCS := $(patsubst %,'_%',$(EXPORT_FUNCS))
  17 EXPORT_LIST := $(shell echo "$(EXPORT_FUNCS)" | sed -e 's@ @, @g')
  18 #Mark all libs "missing" since they need to be built for emcc
  19 MISSINGLIBS := $(LIBS)
  20 #Set XTLibDir to one for bytecodes
  21 XTLIBDIR := $(XTLIBDIR)/bc
  22 #Override Automake vars
  23 AMGEN  := emconfigure $(AMGEN)
  24 AMCONF := emconfigure $(AMCONF)
  25 AMMAKE := emmake
  26
  27 #Set up emscripten APPFLAGS
  28 APPFLAGS += --separate-asm
  29 APPFLAGS += -s ALLOW_MEMORY_GROWTH=1
  30 APPFLAGS += -s FORCE_FILESYSTEM=1
  31 #APPLFAGS += --pre-js pre.js
  32
  33 #Set up emscripten flags for CC
  34 CFLAGS   += -s EXPORTED_FUNCTIONS="[$(EXPORT_LIST)]"
  35 CFLAGS   += -I$(XTDIR) -s USE_SDL=2 -s USE_SDL_IMAGE=2 -s USE_SDL_TTF=2
  36
  37 #Directory structure for web targets
  38 #Dirs for source files
  39 HTSRCDIR := $(REPOROOT)/html
  40 JSSRCDIR := $(HTSRCDIR)/js
  41 #Dirs for targets
  42 HTDIR    := $(EXEDIR)
  43 JSDIR    := $(HTDIR)/js
  44
  45 #Discover each type of object supported
  46 HTSRC   := $(wildcard $(HTSRCDIR)/*.html)
  47 JSSRC   := $(wildcard $(JSSRCDIR)/*.js)
  48 WEBSRC  := $(HTSRC) $(JSSRC)
  49
  50 #Translate sources into their required targets in APPDIR
  51 WEBTARG := $(patsubst $(HTSRCDIR)/%,$(HTDIR)/%,$(WEBSRC))
  52
  53 #Add APPDEPS for all web objects so they must be created
  54 #at build time, before compilation of the main executable
  55 APPDEPS += $(WEBOBJ)
  56
  57 #Later, we will use WEBTARG to define rules for "making"
  58 #these targets (with a cp action) and cleaning (with rm)
  59