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authorBrad King <brad.king@kitware.com>2020-06-29 20:45:43 (GMT)
committerBrad King <brad.king@kitware.com>2020-06-29 21:23:27 (GMT)
commitdf6b077625f86e4ec0d534f6cd88f8610c5b8f8a (patch)
treec2aa4271583dcad49c08570f90f8caf2b97c8451 /Source/cmakemain.cxx
parentf2b84d24cfccf49b6332cf3f2ca164fd71ae023e (diff)
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cmake: Remove broken '--warn-unused-vars' option
This option has been broken since commit b9f9915516 (cmMakefile: Remove VarUsageStack., 2015-05-17, v3.3.0-rc1~52^2). That commit removed the check that an initialized variable has actually been used and caused the option to warn on every variable ever set. This was not caught by the test suite because the test for the feature only checked that warnings appear when needed and not that they do not appear when not needed. The option was never very practical to use. Remove it to avoid the runtime cost of usage tracking and checks for every variable (which we were doing even when the option was not used).
Diffstat (limited to 'Source/cmakemain.cxx')
-rw-r--r--Source/cmakemain.cxx1
1 files changed, 0 insertions, 1 deletions
diff --git a/Source/cmakemain.cxx b/Source/cmakemain.cxx
index 9fa6705..cebf34e 100644
--- a/Source/cmakemain.cxx
+++ b/Source/cmakemain.cxx
@@ -93,7 +93,6 @@ const char* cmDocumentationOptions[][2] = {
{ "--trace-redirect=<file>",
"Redirect trace output to a file instead of stderr." },
{ "--warn-uninitialized", "Warn about uninitialized values." },
- { "--warn-unused-vars", "Warn about unused variables." },
{ "--no-warn-unused-cli", "Don't warn about command line options." },
{ "--check-system-vars",
"Find problems with variable usage in system "