m4env['CC'] = env['CC']
if env.get('CXX'):
m4env['CXX'] = env['CXX']
+
# If we have gm4 use it
if subprocess.Popen("gm4 --version", shell=True, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, close_fds=True).communicate()[0].find('GNU') >= 0:
m4env['M4'] = 'gm4'
+# Check that m4 is available
+if not m4env.get('M4'):
+ print "Error: Can't find version of M4 macro processor. Please install M4 and try again."
+ Exit(1)
+
m4env.Append(M4FLAGS='-DSRCDIR=%s' % Dir('.').path)
m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'
m4env.M4(target=File('libelf_convert.c'),