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mapnik-config: fix substitution of environment variables

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Simply calling str(val) doesn't work, because if the value happens to
be a SCons.Util.CLVar, it may contain not just plain strings, but also
tuples appended by SCons.Environment.ParseFlags.

For example "-isysroot /foo" becomes CLVar: [("-isysroot", "/foo")]

CLVar.__str__ supports only string elements, nothing else.
This commit is contained in:
Mickey Rose 2020-01-30 15:15:14 +01:00
parent b22d5d2fac
commit 39202f5ac0
1 changed files with 3 additions and 3 deletions
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6
utils/mapnik-config/build.py
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@ -59,11 +59,11 @@ def write_config(env, template_filename, config_filename):
escape = env['ESCAPE']
def subst(matchobj):
key = matchobj.group(1)
val = env.get(key)
if val is None:
if key not in env:
return matchobj.group(0)
else:
return 'CONFIG_%s=%s' % (key, escape(str(val)))
val = env.subst('$' + key)
return 'CONFIG_%s=%s' % (key, escape(val))
config = re.sub(r'^CONFIG_(\w+)=.*', subst, template, flags=re.M)
config_file.write(config)
try: