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VS: Do not apply '/external:W*' flag table mapping on VS < 16.10

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Since commit 9054cd05e6 (VS: Add flag table entries for '/external:W*'
flags in VS 16.10, 2021-05-28, v3.20.4~10^2) we map flags to the
`ExternalWarningLevel` element.  VS 16.9 does not support that element,
but its `cl` compiler does support the `/external:W*` flags.  Filter out
the flag table entry on older VS versions.

Fixes: #22308
This commit is contained in:
Brad King
2021-06-16 10:56:15 -04:00
parent e59a208b69
commit 947f0c8b81
1 changed files with 14 additions and 4 deletions
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18
Source/cmGlobalVisualStudio10Generator.cxx
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@@ -1315,7 +1315,10 @@ static unsigned int cmLoadFlagTableSpecial(Json::Value entry,
namespace {
cmIDEFlagTable const* cmLoadFlagTableJson(std::string const& flagJsonPath)
unsigned long long const vsVer16_10_0 = 4503644629696790;
cmIDEFlagTable const* cmLoadFlagTableJson(
std::string const& flagJsonPath, cm::optional<unsigned long long> vsver)
{
cmIDEFlagTable* ret = nullptr;
auto savedFlagIterator = loadedFlagJsonFiles.find(flagJsonPath);
@@ -1337,6 +1340,11 @@ cmIDEFlagTable const* cmLoadFlagTableJson(std::string const& flagJsonPath)
flagEntry.comment = cmLoadFlagTableString(flag, "comment");
flagEntry.value = cmLoadFlagTableString(flag, "value");
flagEntry.special = cmLoadFlagTableSpecial(flag, "flags");
// FIXME: Port this version check to a Json field.
if (vsver && *vsver < vsVer16_10_0 &&
flagEntry.IDEName == "ExternalWarningLevel") {
continue;
}
flagTable.push_back(flagEntry);
}
cmIDEFlagTable endFlag{ "", "", "", "", 0 };
@@ -1364,17 +1372,19 @@ cmIDEFlagTable const* cmGlobalVisualStudio10Generator::LoadFlagTable(
{
cmIDEFlagTable const* ret = nullptr;
cm::optional<unsigned long long> vsver = this->GetVSInstanceVersion();
std::string filename;
if (!optionsName.empty()) {
filename = cmGetFlagTableName(optionsName, table);
ret = cmLoadFlagTableJson(filename);
ret = cmLoadFlagTableJson(filename, vsver);
} else {
filename = cmGetFlagTableName(toolsetName, table);
if (cmSystemTools::FileExists(filename)) {
ret = cmLoadFlagTableJson(filename);
ret = cmLoadFlagTableJson(filename, vsver);
} else {
filename = cmGetFlagTableName(defaultName, table);
ret = cmLoadFlagTableJson(filename);
ret = cmLoadFlagTableJson(filename, vsver);
}
}