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-rw-r--r--deps/uv/vcbuild.bat14
1 files changed, 13 insertions, 1 deletions
diff --git a/deps/uv/vcbuild.bat b/deps/uv/vcbuild.bat
index bccefff9dc..644f574c22 100644
--- a/deps/uv/vcbuild.bat
+++ b/deps/uv/vcbuild.bat
@@ -64,9 +64,21 @@ echo Project files generated.
@rem Skip project generation if requested.
if defined nobuild goto run
-if not defined VCINSTALLDIR echo Build skipped. To build, this file needs to run from VS cmd prompt.& goto run
+@rem If not running in the VS build env, try to start it. If that fails, bail
+@rem out.
+if defined VCINSTALLDIR goto msbuild-found
+if not defined VS100COMNTOOLS goto msbuild-not-found
+if not exist "%VS100COMNTOOLS%\..\..\vc\vcvarsall.bat" goto msbuild-not-found
+call "%VS100COMNTOOLS%\..\..\vc\vcvarsall.bat"
+if not defined VCINSTALLDIR goto msbuild-not-found
+goto msbuild-found
+
+:msbuild-not-found
+echo Build skipped. To build, this file needs to run from VS cmd prompt.
+goto run
@rem Build the sln with msbuild.
+:msbuild-found
msbuild uv.sln /t:%target% /p:Configuration=%config% /clp:NoSummary;NoItemAndPropertyList;Verbosity=minimal /nologo
if errorlevel 1 goto exit