使用make使用g++将目录中的所有cpp文件编译为自己的可执行文件

Question

我想用一个调用将当前目录中的所有cpp文件编译成它们自己的可执行文件。这些文件都不共享任何内容，因此不需要将它们编译为单个程序。我曾想过使用脚本，但后来我想起了make和makefiles(多年没用过了(。我可以写一个makefile来做这件事吗？

Answer 1

这篇文章回答了您的问题。它是关于C程序的，但你可以将它改编成C++。

Makefile编译多个C程序？

Answer 2

感谢@Robert，我从https://stackoverflow.com/a/13696012/1860805并对使用C++进行了更改。希望它对你有效

############################################################################
# 'A Generic Makefile for Building Multiple main() Targets in $PWD'
# Author:  Robert A. Nader (2012)
#          Ramanan.T : Modified to work with C++ (2023)
# Email: naderra at some g
# Web: xiberix
############################################################################
#
#  The purpose of this makefile is to compile to executable all C source
#  files in CWD, where each .c file has a main() function, and each object
#  links with a common LDFLAG.
#
#  This makefile should suffice for simple projects that require building
#  similar executable targets.  For example, if your CWD build requires
#  exclusively this pattern:
#
#  cc -c $(CFLAGS) main_01.cpp
#  cc main_01.o $(LDFLAGS) -o main_01
#
#  cc -c $(CFLAGS) main_2..cpp
#  cc main_02.o $(LDFLAGS) -o main_02
#
#  etc, ... a common case when compiling the programs of some chapter,
#  then you may be interested in using this makefile.
#
#  What YOU do:
#
#  Set PRG_SUFFIX_FLAG below to either 0 or 1 to enable or disable
#  the generation of a .exe suffix on executables
#
#  Set CFLAGS and LDFLAGS according to your needs.
#
#  What this makefile does automagically:
#
#  Sets SRC to a list of *.c files in PWD using wildcard.
#  Sets PRGS BINS and OBJS using pattern substitution.
#  Compiles each individual .c to .o object file.
#  Links each individual .o to its corresponding executable.
#
###########################################################################
#
PRG_SUFFIX_FLAG := 0
#
CFLAGS_INC :=
CFLAGS := -g -Wall $(CFLAGS_INC)
CXXFLAGS = -m64 -O0 -g3 -Wall -DUNIX=1 -DMETA=1
LDFLAGS = -g3 -O0 -m64
#
## ==================- NOTHING TO CHANGE BELOW THIS LINE ===================
##
SRCS := $(wildcard *.cpp)
PRGS := $(patsubst %.cpp,%,$(SRCS))
PRG_SUFFIX=.exe
BINS := $(patsubst %,%$(PRG_SUFFIX),$(PRGS))
## OBJS are automagically compiled by make.
OBJS := $(patsubst %,%.o,$(PRGS))
##
all : $(BINS)
##
## For clarity sake we make use of:
.SECONDEXPANSION:
OBJ = $(patsubst %$(PRG_SUFFIX),%.o,$@)
ifeq ($(PRG_SUFFIX_FLAG),0)
BIN = $(patsubst %$(PRG_SUFFIX),%,$@)
else
BIN = $@
endif
## Compile the executables
%$(PRG_SUFFIX) : $(OBJS)
$(CXX) $(OBJ) $(CXXFLAGS)  $(LDFLAGS) -o $(BIN)
##
## $(OBJS) should be automagically removed right after linking.
##
clean:
ifeq ($(PRG_SUFFIX_FLAG),0)
$(RM) $(PRGS) $(OBJS)
else
$(RM) $(BINS) $(OBJS)
endif
##
rebuild: clean all
##
## eof Generic_Multi_Main_PWD.makefile