src/.make/buildc.mk

   1 ##################################################
   2 #Desc:   C Compiler Setup
   3 #Author: Mihrtec LLC
   4 #Date:   2016
   5 ##################################################
   6 #Included from ./build.mk
   7 #Defines variables used in the make process to
   8 #compile C files either to native bc through gcc,
   9 #or web through emscripten
  10 ##################################################
  11 #expand the app source dir last as a module to build
  12 CMODULES := $(MODULES) $(APPSRC)
  13 CLIBS    := $(patsubst %,-l%,$(LIBS))
  14 CSRC     := $(wildcard $(patsubst %,%/*.c,$(CMODULES)))
  15 CTARG    := $(CSRC:.c=.o)
  16
  17 ##################################################
  18 #Global CFlags
  19 ##################################################
  20 #Warn Level
  21 CFLAGS := -Wall
  22 #Include each module's root directory and src/
  23 CFLAGS += $(patsubst %,-I%, $(CMODULES)) -I.
  24 #Precompiler Flags
  25 CFLAGS += -DAPPNAME=$(APPNAME)
  26
  27 ##################################################
  28 #Missing Lib Handler
  29 ##################################################
  30 LDPIPE := ld $(CLIBS) 2>&1 >/dev/null
  31 LDGREP := grep "cannot find"
  32 LDSED  := sed -e 's@ld:.*-l\([^ ]*\).*@\1@'
  33 MISSINGLIBS := $(shell $(LDPIPE) | $(LDGREP) | $(LDSED))
  34 #Automake vars for building libs
  35 AMGEN  := ./autogen.sh
  36 AMCONF := ./configure
  37 AMMAKE := make
  38
  39 ##################################################
  40 #Override C Environment for compiler-specific
  41 #or OS specific requirements, if present
  42 ##################################################
  43 -include .make/buildc_$(strip $(notdir $(CC))).mk
  44 ifdef OS
  45 -include .make/buildc_$(strip $(OS)).mk
  46 endif
  47
  48 #Determine suffix (possibly overridden by includes)
  49 COBJSUF := $(suffix $(firstword $(CTARG)))
  50
  51 ##################################################
  52 #C Dependency Generator
  53 ##################################################
  54 CGENDEP := $(strip $(CC) -MM -MG $(CXXFLAGS) $(CFLAGS)) $BASE.c
  55 CGENDEP += | sed -e 's@^.*\.o:@@'
  56 CGENDEP += | tr '\\' ' '
  57
  58 #Set up all missing libs to be made in the source directory
  59 ifdef MISSINGLIBS
  60 $(info Static libraries to be built in $(XTLIBDIR):)
  61 $(info $(patsubst %,lib%.so,$(MISSINGLIBS)))
  62 STATICLIBS := $(patsubst %,$(XTLIBDIR)/lib%.so,$(MISSINGLIBS))
  63 CFLAGS     += -L$(XTLIBDIR) $(patsubst %,-I$(XTDIR)/%,$(MISSINGLIBS))
  64 #Ensure that C files depend on the creation of these static libs
  65 CDEPS      += $(STATICLIBS)
  66 #Modify the dependency generator to find the right directory for
  67 #missing libs (they are in XTDIR/libname)
  68 CGENDEP    += $(patsubst %, | sed -e 's@ \(%\)/@$(XTDIR)/\1/\1/@',$(MISSINGLIBS))
  69 endif
  70
  71 CFLAGS += $(CLIBS)