SRC =
SRC += main.c
....
SRC += main2.c

SRC += main2.c

# Define programs and commands.
CHECKEXIST = fexist

# Default target.
all: begin checkfiles gccversion sizebefore build sizeafter end

# Eye candy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
checkfiles:
    @$(CHECKEXIST) $(SRC)

begin:
    @echo
    @echo $(MSG_BEGIN)

end:
    @echo $(MSG_END)
    @echo

#include <stdio.h>

int main(int argc, char *argv[])
{
    FILE *fp;

    for(int i = 1; i < argc; i++)
    {
        fp = fopen(argv[i], "r");
        if(fp == NULL)
        {
            printf("File not found: %s\r\n", argv[i]);

            return 1;
        }
        else fclose(fp);
    }

    return 0;
}

checkfiles:
    @for srcfile in $(SRC); do if test ! -e $$srcfile; then echo File not found: $$srcfile; echo; fi; done

SOURCE_DIRS = . "C:\TEMP" "C:\Documents and Settings\admin\Рабочий стол" "D:\MyFolder"

VPATH = $(SOURCE_DIRS)

checkfiles:        
    @let errorstop=0; for srcfile in $(SRC); do let filesfound=0; for srcpath in $(VPATH); do if test -e "$$srcpath/$$srcfile"; then let filesfound++; fi; done; if test $$filesfound == 0; then echo File not found: $$srcfile; let errorstop++; fi; done; if test $$errorstop != 0; then echo; exit 1; fi

# List source directories here:
SOURCE_DIRS = .
SOURCE_DIRS += ../../arclib/avr
SOURCE_DIRS += ../../arclib/ic_drivers
SOURCE_DIRS += ../../arclib/common
SOURCE_DIRS += ../../arclib/common/modbus

VPATH := $(SOURCE_DIRS)

CFLAGS += -Wa,-adhlns=$(addprefix $(OBJDIR)/, $(notdir $(<:%.c=%.lst)))
CFLAGS += $(addprefix -I, $(SOURCE_DIRS))


CPPFLAGS += -Wa,-adhlns=$(addprefix $(OBJDIR)/, $(notdir $(<:%.cpp=%.lst)))
CPPFLAGS += $(addprefix -I, $(SOURCE_DIRS))


CPPFLAGS += -Wa,-adhlns=$(addprefix $(OBJDIR)/, $(notdir $(<:%.cpp=%.lst)))
CPPFLAGS += $(addprefix -I, $(SOURCE_DIRS))

ASFLAGS = -Wa,-adhlns=$(addprefix $(OBJDIR)/, $(notdir $(<:%.S=%.lst))),-gstabs,--listing-cont-lines=100

# Define all object files.
OBJ := $(SRC:%.c=%.o) $(CPPSRC:%.cpp=%.o) $(ASRC:%.S=%.o)
OBJ := $(notdir $(OBJ))
OBJ := $(addprefix $(OBJDIR)/,$(OBJ))

# Define all listing files.
LST := $(SRC:%.c=%.lst) $(CPPSRC:%.cpp=%.lst) $(ASRC:%.S=%.lst)
LST := $(notdir $(LST))
LST := $(addprefix $(OBJDIR)/,$(LST))


# Define Messages
# English
MSG_COMPILING = Compiling C:
#.....
MSG_FILE_NOT_FOUND = File not found:


# Default target.
all: begin testsrc gccversion sizebefore build  sizeafter end

# Eye candy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
testsrc:
    @let errorstop=0; \
    for srcfile in $(SRC); do \
        let filesfound=0; \
        for srcpath in $(VPATH); do \
            if test -e "$$srcpath/$$srcfile"; then let filesfound++; fi; \
        done; \
        if test $$filesfound == 0; then echo $(MSG_FILE_NOT_FOUND) $$srcfile; let errorstop++; fi; \
    done;\
    if test $$errorstop != 0; then echo; exit 1; fi

begin:
    @echo
    @echo $(MSG_BEGIN)

end:
    @echo $(MSG_END)
    @echo

# Listing of phony targets.
.PHONY : all testsrc begin finish end sizebefore sizeafter gccversion \
build elf hex eep lss sym coff extcoff \
clean clean_list program debug gdb-config

SRC = file1.c file2.c
....
$(SRC):
    @echo File not found: $@
    @exit 1

$(SRC):
    @echo File not found: $@
    @exit 1

# check all src files to be accessible.
testsrc:
$(SRC):
    @echo $(MSG_FILE_NOT_FOUND) $@
    @exit 1

# путь к каталогу, от которого начинаются используеміе каталоги исходников,
# относительно каталога с makefile
PROJ_SRCTOP=..

common_makefiles=$(PROJ_SRCTOP)/makefiles

MODULES = c_lib/avr t02bios c_lib/spi/at45 \
    c_lib/xmodem_crc c_lib/cbuf c_lib/avr/comm_m128

# это для ГЕНЕРИРУЕМЫХ исходников, скажем, файлов перекодированых строк, создаваемых
# утилитой pyLCDstring либо пожатых и конвертнутых в вид массивов во флеше прошивок мелких FPGA
EXTRA_CSRC = lcd_messages.c

# ...
# тут прочее всякое нужное
# ...

###### you should not need to change the following lines #############
# keep order!
# avreal.make must be included after gcc-avr because of TRGPGM definition
include $(common_makefiles)/gcc-avr.mak
include $(common_makefiles)/avreal.mak

###### additional dependencies
# must be after included makefiles because of main target placed in gcc-avr.mak
lcd_messages.c : lcd_messages.lcd
lcd_messages.h : lcd_messages.lcd

OBJDIR := $(PROJ_SRCTOP)/../obj
LSTDIR := $(PROJ_SRCTOP)/../lst
EXEDIR := $(PROJ_SRCTOP)/../exe

SRCDIRS := . $(addprefix $(PROJ_SRCTOP)/,$(MODULES))
INCDIRS := $(SRCDIRS)

CSRC    := $(EXTRA_CSRC) $(wildcard $(addsuffix /*.c,$(SRCDIRS)))
CPPSRC    := $(EXTRA_CPPSRC) $(wildcard $(addsuffix /*.cpp,$(SRCDIRS)))
ASRC    := $(EXTRA_ASMCSRC) $(wildcard $(addsuffix /*.S,$(SRCDIRS)))

CFLAGS += $(addprefix -I,$(INCDIRS))