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Autogen: Restore AUTOGEN_PARALLEL support for numbers

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Refactoring in commit d867e05892 (Autogen: Use JSON instead of CMake
script for info files, 2019-09-20, v3.16.0-rc1~57^2) broke support for
numerical values of `AUTOGEN_PARALLEL`.  Parse and verify the range.
Warn if the value is invalid.

Fixes: #20376
This commit is contained in:
Orkun Tokdemir
2023-03-16 16:06:17 +01:00
committed by Brad King
parent 9d439e235c
commit a42ecb1614
1 changed files with 12 additions and 0 deletions
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12
Source/cmQtAutoGenInitializer.cxx
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@@ -5,6 +5,7 @@
#include <cstddef>
#include <deque>
#include <initializer_list>
#include <limits>
#include <map>
#include <set>
#include <sstream> // for basic_ios, istringstream
@@ -457,12 +458,23 @@ bool cmQtAutoGenInitializer::InitCustomTargets()
// Autogen target parallel processing
{
using ParallelType = decltype(this->AutogenTarget.Parallel);
unsigned long propInt = 0;
std::string const& prop =
this->GenTarget->GetSafeProperty("AUTOGEN_PARALLEL");
if (prop.empty() || (prop == "AUTO")) {
// Autodetect number of CPUs
this->AutogenTarget.Parallel = GetParallelCPUCount();
} else if (cmStrToULong(prop, &propInt) && propInt > 0 &&
propInt <= std::numeric_limits<ParallelType>::max()) {
this->AutogenTarget.Parallel = static_cast<ParallelType>(propInt);
} else {
// Warn the project author that AUTOGEN_PARALLEL is not valid.
this->Makefile->IssueMessage(
MessageType::AUTHOR_WARNING,
cmStrCat("AUTOGEN_PARALLEL=\"", prop, "\" for target \"",
this->GenTarget->GetName(),
"\" is not valid. Using AUTOGEN_PARALLEL=1"));
this->AutogenTarget.Parallel = 1;
}
}