How to I 'make' from subfolders?

[manasij7479]

I am making an OpenGL framework on which to base my code on while learning OpenGL (and Computer Graphics in general).
It is structured in a way that I only have to modify a few data files and shaders along with a single .cpp file to implement examples.
I want to move that 'unit' away from the framework code, into independent subfolders, so that I can work on multiple things at the same time.
I can't figure out how to incorporate that into 'make' .

So far, I'm using a pretty crude chell script that copies the .cpp file into the main folder, invokes the original Makefile and moves back the executable to the subfolder so that it can reach its files.

What is a better way to do this ?
Any build system recommendation that supports this kind of stuff 'naturally' ?

(Here is the code, https://bitbucket.org/manasij7479/gl/ )

[phantomotap]

It is structured in a way that I only have to modify a few data files and shaders along with a single .cpp file to implement examples.

This is by definition not part of the framework.

It is part of the examples of using the framework.

This file, and all such files, always belong in a different directory.

Use relative linking, in whatever fashion, to build these examples. The example files can just stay in their directories.

You can then just call `make' against files in those directories with a file, such as a library, as a prerequisite for building the examples so that building one of those would also call the main source to build.

Soma

[manasij7479]

Thanks.
Can't believe I didn't think of putting them on the 'same level' before.
Would have to tinker a bit to get it working nicely.

**Wow..a lot of typos in my original post.
And now I'm irritated that I can't edit them .

[manasij7479]

This is what I finally did.
Example Makefile:

TARGET:= main
DIR:=../../framework/
SRC:=mygl.cpp
CXX:=g++
CXXFLAGS :=-Wall -std=c++11 -g
LDFLAGS := -lframework -lpthread -lGL -lGLEW -lsfml-system -lsfml-window
default: $(TARGET)
    
lib:
    make -j9 -C $(DIR) 
$(TARGET): $(SRC) lib
    $(CXX) $(SRC) -I$(DIR) -L$(DIR) $(LDFLAGS) $(CXXFLAGS) -o $(TARGET)
clean:
    rm $(TARGET)
    make clean -C $(DIR)

Framework Makefile:

CXX:= g++
CXXFLAGS :=-c -Wall -std=c++11 -g
SRCS := $(wildcard *.cpp)
OBJS := $(patsubst %.cpp, %.o, $(SRCS))
TARGET := libframework.a
default : $(TARGET)
%.o : %.cpp %.h
    $(CXX) $(CXXFLAGS) $< -o $@
$(TARGET) : $(OBJS)
    ar rcs $(TARGET)  $^
clean :
    rm -f $(OBJS) $(TARGET) *~ *.a *.o

[Aslaville]

(Here is the code, https://bitbucket.org/manasij7479/gl/ )

For some reason I cannot access the code,...I wanted to have a glimpse of it

[phantomotap]

O_o

He doesn't have it set to private.

Beyond that, he'd have little control.

Just try again...

Soma

[Aslaville]

Yap it just worked.