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-rwxr-xr-xbin/update_pch2
1 files changed, 1 insertions, 1 deletions
diff --git a/bin/update_pch b/bin/update_pch
index e5939e7a441c..7411e79acb80 100755
--- a/bin/update_pch
+++ b/bin/update_pch
@@ -581,7 +581,7 @@ def parse_makefile(groups, lines, lineno, lastif, ifstack):
ingeneratedobjects = False
inelse = False
suffix = 'cxx'
- os_cond_re = re.compile('(ifeq|ifneq)\s*\(\$\(OS\)\,(\w*)\)')
+ os_cond_re = re.compile(r'(ifeq|ifneq)\s*\(\$\(OS\)\,(\w*)\)')
line = lines[lineno]
if line.startswith('if'):