sconsapp.c

#include <stdio.h> 
#define UNIVERSAL_CONSTANT 42 
 
/** 
 * app.c is currently the world's most complex application.
 * We'll never know, will we?
 */

int main(int argc, char const *argv[])
{
    // The answer to life's most fundamental question:
    printf("Well the answer is %i", UNIVERSAL_CONSTANT);
    return 0;
}

SConstruct

#Barebones configuration
#Library('mandelbrot',['./lib/mandelbrot.cc'])
#Program('./src/app.cc', LIBS=['mandelbrot'], LIBPATH='.')

#Customize excecutable directory and add a Clean up function
#Library('mandelbrot',['./lib/mandelbrot.cc'])
#Program('dist/mandelbrot','./src/app.cc', LIBS=['mandelbrot'], LIBPATH='.')
#target = Program('dist/mandelbrot','./src/app.cc', LIBS=['mandelbrot'], LIBPATH='.')
#Clean(target,'./dist') 

#Add build help  
#Library('mandelbrot',['./lib/mandelbrot.cc'])
#Program('dist/mandelbrot','./src/app.cc', LIBS=['mandelbrot'], LIBPATH='.')
#target = Program('dist/mandelbrot','./src/app.cc', LIBS=['mandelbrot'], LIBPATH='.')
#Clean(target,'./dist')
#Help("""
#Usage: 'scons .' to build the mandelbrot application
#       'scons PNGSUPPORT' to add PNG support to the application
#""") 
#import platform
#platform_ = platform.system()
#if platform_ == 'Linux':
#    Help("\nType:  'scons linux' Build with native Linux support.\n")

#if platform_ == 'Windows':
#    Help("\nType:  'scons win32' Build with native Windows support.\n")

# Add Custom Commandline targets
Help("""
Usage: 'scons .' to build the mandelbrot application
       'scons -Q IMAGETYPE=PNG' to generate PNG output only, default is PPM
       'scons -Q IMAGETYPE=ALL' to generate both PPM and PNG images
""") 
import platform
platform_ = platform.system()
if platform_ == 'Linux':
    Help("\nType:  'scons linux' Build with native Linux support.\n")

if platform_ == 'Windows':
    Help("\nType:  'scons win32' Build with native Windows support.\n")    

vars = Variables(None)
vars.Add(EnumVariable('IMAGETYPE', 'Set to PNG to build for PNG image output support  or ALL to generate PNG and PPM', 'PPM' ,
        allowed_values=('PNG','PPM','ALL')))
env = Environment(variables = vars,
                  CPPDEFINES={'IMAGETYPE' : '"${IMAGETYPE}"'})
                 # CCFLAGS='`-I/usr/include/ImageMagick-7 -fopenmp -DMAGICKCORE_HDRI_ENABLE=1 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/usr/include/ImageMagick-7 -fopenmp -DMAGICKCORE_HDRI_ENABLE=1 -DMAGICKCORE_QUANTUM_DEPTH=16 -lMagick++-7.Q16HDRI -lMagickWand-7.Q16HDRI -lMagickCore-7.Q16HDRI -lMagick++-7.Q16HDRI -lMagickWand-7.Q16HDRI -lMagickCore-7.Q16HDRI')
unknown = vars.UnknownVariables()
if unknown:
    print("Unknown variables: %s"%unknown.keys())
    Exit(1)
env.Append(CPPPATH = ['/usr/include', '/usr/local/include'])

# Check if we have some headers
test_assert_source_file = """
#include <assert.h>

int test_assert(int x)
{
    assert(x <= 4);
    return x;
}

int main()
{
    test_assert(2);
    return 0;
}
"""

def CheckForAssert(context):
    context.Message('Checking for Assert header files... ')
    result = context.TryLink(test_assert_source_file, '.c')
    context.Result(result)
    return result 
 
conf = Configure(env, custom_tests = {'CheckForAssert' : CheckForAssert})

if not conf.CheckForAssert():
    print 'Assert header files not found!'
    Exit(1)

if not conf.CheckLib('png'):
   print 'PNG Library not found'
   Exit(1)

if not conf.CheckCHeader('stdlib.h'):
    print 'CMath.h must be installed!'
    Exit(1)

if not conf.CheckCXXHeader('math.h'):
    print 'Math.h must be installed!'
    Exit(1)

if not conf.CheckProg('xterm'):
  print 'XTerm must be installed'
  Exit(1)

env = conf.Finish()

# Build
Library('pngwriter',['./include/pngwriter/src/pngwriter.cc', './include/pngwriter/src/pngwriter.h'])
Library('mandelbrot',['./lib/mandelbrot.cc'])
env.Program('dist/mandelbrot','./src/app.cc', LIBS=['png', 'pngwriter', 'mandelbrot'], LIBPATH=['.'])
target = env.Program('dist/mandelbrot','./src/app.cc', LIBS=[ 'png', 'pngwriter', 'mandelbrot'], LIBPATH=['.'])
Clean(target,'./dist')