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-rw-r--r--PCbuild/python.props4
1 files changed, 3 insertions, 1 deletions
diff --git a/PCbuild/python.props b/PCbuild/python.props
index 39b7b8a6b6..f9433133a8 100644
--- a/PCbuild/python.props
+++ b/PCbuild/python.props
@@ -43,7 +43,9 @@
<BuildPath Condition="$(Configuration) == 'PGInstrument'">$(BuildPath)instrumented\</BuildPath>
<!-- Directories of external projects. tcltk is handled in tcltk.props -->
- <ExternalsDir>$([System.IO.Path]::GetFullPath(`$(PySourcePath)externals\`))</ExternalsDir>
+ <ExternalsDir>$(EXTERNALS_DIR)</ExternalsDir>
+ <ExternalsDir Condition="$(ExternalsDir) == ''">$([System.IO.Path]::GetFullPath(`$(PySourcePath)externals`))</ExternalsDir>
+ <ExternalsDir Condition="!HasTrailingSlash($(ExternalsDir))">$(ExternalsDir)\</ExternalsDir>
<sqlite3Dir>$(ExternalsDir)sqlite-3.21.0.0\</sqlite3Dir>
<bz2Dir>$(ExternalsDir)bzip2-1.0.6\</bz2Dir>
<lzmaDir>$(ExternalsDir)xz-5.2.2\</lzmaDir>