Computer Science Canada

bash script or makefile question
Author:  abcdefghijklmnopqrstuvwxy [ Thu Jan 18, 2007 11:33 pm ]
Post subject:  bash script or makefile question
whenever I want to compile a project that uses SDL functions I have to type this:

code:

[#user@machine program] g++ `sdl-config  --libs --cflags` program.cpp -o program


using a makefile or a script is there a pragmatic way to compile without the `sdl-config --libs --clfags`?
Author:  wtd [ Fri Jan 19, 2007 12:23 am ]
Post subject:  RE:bash script or makefile question
You would simply add that to a variable like CXX_FLAGS.
Author:  abcdefghijklmnopqrstuvwxy [ Fri Jan 19, 2007 12:29 am ]
Post subject:  RE:bash script or makefile question
so like?
code:

#makefile
###########
# build options
CXX_Flags = sdl-config --libs --cflags

Author:  rdrake [ Fri Jan 19, 2007 12:46 am ]
Post subject:  RE:bash script or makefile question
something like the following is often used:
code:
##########
# Variables
CXX=g++
CXXFLAGS=sdl-config --libs --cflags

##########
# Make it all
all : program.o
        $(CXX) program.o -c program.exe

program.o :
        $(CXX) $(CXXFLAGS) program.c
Remember the 8 spaces should be converted to a real tab.
Author:  abcdefghijklmnopqrstuvwxy [ Fri Jan 19, 2007 12:46 am ]
Post subject:  RE:bash script or makefile question
the above didn't work. instead i did
[EDIT: When i say the above I meant my post.]

code:

# rules
#

program.exec:
          g++ `sdl-config --libs --cflags`
Author:  rdrake [ Fri Jan 19, 2007 12:47 am ]
Post subject:  RE:bash script or makefile question
Since my post had just been replied to, I cannot change it. The "-c" option in my example should be "-o".
Author:  abcdefghijklmnopqrstuvwxy [ Fri Jan 19, 2007 1:02 am ]
Post subject:  RE:bash script or makefile question
rdrake, first thanks, second you also need the `.

code:

CXX=g++
CXXFLAGS=`sdl-config --libs --cflags`
Author:  md [ Fri Jan 19, 2007 1:42 am ]
Post subject:  RE:bash script or makefile question
Yes, you still need the quotes for it to work; but you can easily add it to your CXX_FLAGS.
Author:  abcdefghijklmnopqrstuvwxy [ Fri Jan 19, 2007 2:39 am ]
Post subject:  RE:bash script or makefile question
They aren't quotes. As someone not too savy with bash I dont know exactly what they do, but I know that they are accents (the tild key) and that single quotes will NOT work.
Author:  md [ Fri Jan 19, 2007 11:09 am ]
Post subject:  RE:bash script or makefile question
Yes, whatever; I call them quotes Wink You should split it up though `sdl-config --cflags` goes in CXX_FLAGS and `sdl-config --libs` goes in LD_FLAGS.

LD_FLAGS would be used where you take your object files and create an executable.
Author:  wtd [ Fri Jan 19, 2007 11:16 am ]
Post subject:  RE:bash script or makefile question
Yes, you do need the backticks as they take the commend inside, execute it, and return its output.

:


You can syndicate this boards posts using the file backend.php or view the topic map using sitemap.php.

Terms of Use | Privacy Policy