“无法找到文件” makefile错误 [英] "Can not find file" makefile error

问题描述

我想使用make编译一个C ++程序。我想它从src文件夹中读取源文件。

我收到以下错误

/bin/wavfiletool.exe -g -O2 process_begin：CreateProcess（NULL，
/bin/wavfiletool.exe -g -O2，...）失败。 make（e = 2）：系统
找不到指定的文件。

更新：问题是我把g ++

但是现在它说的是g ++：fatal error：没有输入文件
我是我的编译器var而不是&使用设置环境变量的批处理文件运行make。

  SET PATH = C：\Make\GnuWin32\bin ; C：\MinGW\bin 
 make％1 
  

我的makefile如下。

  CC：= g ++ 
 CFLAGS：= -g -O2 
 BIN_DIR：= / bin 
 BUILD_DIR：= / build 
 SRC_DIR：= / src 
 TARGET：= wavfiletool.exe 
 SOURCES：= $（通配符$（SRC_DIR）/ *。c）
 OBJECTS：= $（SOURCES：$（SRCDIR）/％。cpp = $（OBJDIR）/％。o）
 
 $（BIN_DIR）/ $（TARGET）：$（OBJECTS）
 $（G ++）$ @ $（CFLAGS）$（OBJECTS）
 
 $（OBJECTS）：$（OBJDIR）/％ $（CC）$（CFLAGS）-c $& -o $ @ 
  

解决方案

code> $（G ++）变量，因此 $（BIN_DIR）/ $（TARGET）目标的配方行试图 $

$ code>在那个编译行上，因此 $（G ++）设置为 g ++ ：

  g ++ /bin/wavfiletool.exe -g -O2 $（OBJECTS）
  
 
 
 
   >说你可能不想直接写到 / bin 。您是指 ./ bin 为本地目录中的 bin 目录吗？
 
I am trying to compile a C++ program using make. I want it to read the source files from the src folder. Place the object files in the build folder, and put the exe in the bin folder.

I get the following error

  
/bin/wavfiletool.exe -g -O2  process_begin: CreateProcess(NULL,
  /bin/wavfiletool.exe -g -O2, ...) failed. make (e=2): The system
  cannot find the file specified.
UPDATE: The problem was I put g++ in for my compiler var instead of &(CC)...woops.

But now it says g++: fatal error: no input files
I am running make using a batch file that sets the environment variables.
SET PATH=C:\Make\GnuWin32\bin;C:\MinGW\bin
make %1
My makefile is as follows.
CC := g++
CFLAGS := -g -O2
BIN_DIR := /bin
BUILD_DIR := /build
SRC_DIR := /src
TARGET := wavfiletool.exe
SOURCES  := $(wildcard $(SRC_DIR)/*.c)
OBJECTS  := $(SOURCES:$(SRCDIR)/%.cpp=$(OBJDIR)/%.o)

$(BIN_DIR)/$(TARGET): $(OBJECTS)
    $(G++) $@ $(CFLAGS) $(OBJECTS)

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

解决方案
You haven't set the $(G++) variable anywhere so the recipe line for the $(BIN_DIR)/$(TARGET) target is trying to run $@ instead of the compiler.

Also you are missing -o on that compilation line so were $(G++) set to g++ correctly you would end up running:
g++ /bin/wavfiletool.exe -g -O2 $(OBJECTS)
which likely isn't what you want.

That being said you probably don't want to be writing directly into /bin either. Did you mean ./bin for a bin directory in the local directory?

                        
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