I’ve always found myself writing short little programs to test out an idea or learn how a language feature/bug works. Often they’re throw away programs, once finished they’re no longer needed. So often it ends up being test.c/test.cpp/test.java etc. But sometimes I like to keep it around so they’ll end up with a meaningful name i.e. I now have a lambda.cpp I used for trying out the new C++11 lambdas. So rather than always have to whip out a new makefile or copy/edit an old one I have this makefile which makes things a little easier. You just drop the makefile in place where you have file.cpp’s laying around and you can compile that single file.cpp with ‘make file’. As you can see I have it working on linux, osx, and windows.
$ cat - > hw.cpp
#include < iostream >
int main() {
std::cout < < "Hello, world!\n";
}
arch:/home/mkm/src/test
$ make hw
g++ -std=c++11 -Wall hw.cpp -o hw
arch:/home/mkm/src/test
$ ./hw
Hello, world!
Here's the makefile
# generic 1 file makefile # 2013/09/18 Mike Makuch # This makefile will compile any single file.cpp file without modification # by simply typing 'make file' without the .cpp eg; # file name myprog.cpp # type: make myprog # Initially works for linux, osx, win7/vs2012, # Written assuming gnu make UNAME := $(shell uname -s) .SUFFIXES: MAKEFLAGS += --no-builtin-rules ifeq ($(UNAME), Linux) CFLAGS = -std=c++11 -Wall CC = g++ COMPILE = $(CC) $(CFLAGS) $< -o $@ BINS = $(subst .cpp,,$(SRCS)) endif ifeq ($(UNAME), Darwin) CC = /opt/local/bin/g++-mp-4.7 CFLAGS = -std=c++11 -L/opt/local/lib -I/opt/local/include COMPILE = $(CC) $(CFLAGS) $< -o $@ BINS = $(subst .cpp,,$(SRCS)) endif ifneq (,$(findstring CYGWIN_NT,$(UNAME))) CC=cl CFLAGS=/O2 /nologo #LIBS=gdi32.lib user32.lib kernel32.lib shell32.lib winmm.lib opengl32.lib glu32.lib LIBS=user32.lib kernel32.lib shell32.lib COMPILE = cl /EHsc $? /Fe$(subst .cpp,.exe,$?) ; rm $(OBJ) OBJ = $(addsuffix .obj,$@) BINS = $(subst .cpp,.exe,$(SRCS)) endif SRCS = $(shell ls *.cpp) % : %.cpp $(COMPILE) clean: rm -rf $(BINS) *.dSYM *.obj *.exe