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Merge topic 'makefiles-compiler-deps-optims'

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f395caf498 Makefiles dependencies: enhance robustness of deps parser

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !5568
This commit is contained in:
Brad King
2020-12-04 13:31:03 +00:00
committed by Kitware Robot
parent bb4d70c165 f395caf498
commit 486ede8064
1 changed files with 12 additions and 1 deletions
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13
Source/cmDependsCompiler.cxx
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@@ -182,6 +182,11 @@ bool cmDependsCompiler::CheckDependencies(
ParseLine(line, depends);
}
if (depends.empty()) {
// unexpectedly empty, ignore it and continue
continue;
}
// depending of the effective format of the dependencies file generated
// by the compiler, the target can be wrongly identified as a
// dependency so remove it from the list
@@ -189,7 +194,13 @@ bool cmDependsCompiler::CheckDependencies(
depends.erase(depends.begin());
}
if (isValidPath) {
// ensure source file is the first dependency
if (depends.front() != source) {
cm::erase(depends, source);
if (!isValidPath) {
depends.insert(depends.begin(), source);
}
} else if (isValidPath) {
// remove first dependency because it must not be filtered out
depends.erase(depends.begin());
}