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use 4 space tabs in configure.py, warn on re2c missing

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This commit is contained in:
Evan Martin 2012-08-16 11:28:03 -07:00
parent ee063d100b
commit 0b531af962
1 changed files with 14 additions and 13 deletions
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27
configure.py
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@ -234,21 +234,22 @@ if platform not in ('mingw', 'windows'):
n.comment('the depfile parser and ninja lexers are generated using re2c.')
def has_re2c():
import subprocess
try:
subprocess.call(['re2c', '-v'], stdout=subprocess.PIPE)
return True
except OSError:
return False
import subprocess
try:
subprocess.call(['re2c', '-v'], stdout=subprocess.PIPE)
return True
except OSError:
return False
if has_re2c():
n.rule('re2c',
command='re2c -b -i --no-generation-date -o $out $in',
description='RE2C $out')
# Generate the .cc files in the source directory so we can check them in.
n.build(src('depfile_parser.cc'), 're2c', src('depfile_parser.in.cc'))
n.build(src('lexer.cc'), 're2c', src('lexer.in.cc'))
n.rule('re2c',
command='re2c -b -i --no-generation-date -o $out $in',
description='RE2C $out')
# Generate the .cc files in the source directory so we can check them in.
n.build(src('depfile_parser.cc'), 're2c', src('depfile_parser.in.cc'))
n.build(src('lexer.cc'), 're2c', src('lexer.in.cc'))
else:
n.comment('(re2c not found, using checked-in cc files instead.)')
print ("warning: re2c not found; changes to src/*.in.cc will not affect "
"your build.")
n.newline()
n.comment('Core source files all build into ninja library.')