C中的Makefile问题

Question

    #-----------------------------------------------------------------------    ------
# Choose a compiler & its options
#--------------------------------------------------------------------------

CC   = gcc
OPTS = -W -O3

#--------------------------------------------------------------------------
# Add the debug flag to compile for use by a debugger
#--------------------------------------------------------------------------
#DEBUG=-g

#--------------------------------------------------------------------------
# Add the names of the directories
#--------------------------------------------------------------------------
SRCDIR= src
OBJDIR= obj
INCDIR= include
BINDIR= bin

#--------------------------------------------------------------------
# Add the rest of the source files. Don't forget to add the '\' character
# to continue the line. You don't need it after the last source file
#--------------------------------------------------------------------
SRCS=$(SRCDIR)/Lab12.c \ Function1.c \ Function2.c \ Function3.c \                                   Function4.c \          Function5.c 

#--------------------------------------------------------------------
# You don't need to edit the next few lines. They define other flags
# used in the compilation of the source code
#--------------------------------------------------------------------
INCLUDE = $(addprefix -I,$(INCDIR))
OBJS=${SRCS:$(SRCDIR)/%.c=$(OBJDIR)/%.o}
CFLAGS   = $(OPTS) $(INCLUDE) $(DEBUG)

#--------------------------------------------------------------------
# Add the name of the executable after the $(BINDIR)/
#--------------------------------------------------------------------
TARGET = $(BINDIR)/ Lab12

all: $(TARGET)

$(TARGET): $(OBJS) 
    ${CC} ${CFLAGS} -o $@ $(OBJS)

$(OBJS): $(OBJDIR)/%.o : $(SRCDIR)/%.c
    $(CC) $(CFLAGS) -c $< -o $@

clean:
    rm -f $(OBJS)

 cleanall:
    rm -f $(OBJS)
    rm -f Lab12

 #--------------------------------------------------------------------
 # Add a target named cleanall that will remove the object files as well
 # as the executable
 #--------------------------------------------------------------------

我的所有“头”文件都在包含文件夹中。我的所有源代码都在 src 文件夹中（Lab12.c、Function1.c、Function2.c ...）。当我使用 make 命令时，我不断收到此错误。

Makefile:45: 目标 Function1.c' doesn't match the target pattern Makefile:45: target Function2.c' 与目标模式不匹配 Makefile:45: 目标Function3.c' doesn't match the target pattern Makefile:45: target Function4.c' 与目标模式不匹配 Makefile:45: 目标`Function5.c' 与目标模式不匹配 gcc -W -O3 -Iinclude -c -o Function1.c gcc：没有输入文件 make: *** [Function1.c] 错误 1

我不明白为什么它会这样。所有这些文件都在 src 代码文件夹中，为什么系统无法识别它们？

Answer 1

SRCS=$(SRCDIR)/Lab12.c \ Function1.c \ Function2.c \ Function3.c \

似乎错了；你应该试试

SRCS=$(SRCDIR)/Lab12.c Function1.c Function2.c Function3.c

改为

更新

如果 Function1.c 等在 ´$(SRCDIR)` 中，您也必须将目录添加到这些文件中。 （来自 M Oehm 的评论）