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Xcode: Explicitly disable deprecated user include path feature

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The `ALWAYS_SEARCH_USER_PATHS` feature is documented [1] to search the
paths in `USER_HEADER_SEARCH_PATHS` before `HEADER_SEARCH_PATHS`.  The
behavior has been long discouraged and was deprecated by Xcode 8.3.
Furthermore, Xcode explicitly disables this setting when creating new
projects.  We can do that too since we do not generate any user header
search paths anyway.

Previously we always set `USE_HEADERMAP` to `NO` to prevent Xcode's
warning about an ancient "header map" feature deprecation.  However,
this somehow breaks Xcode 14's "Build Documentation" feature.  Setting
`ALWAYS_SEARCH_USER_PATHS` to `NO` seems to prevent the header map
warning too, so drop `USE_HEADERMAP` to fix the documentation feature.

[1] https://developer.apple.com/documentation/xcode/build-settings-reference

Fixes: #24379
This commit is contained in:
Brad King
2023-01-31 14:18:21 -05:00
parent 29fb1367b6
commit 8527f42b96
1 changed files with 2 additions and 1 deletions
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3
Source/cmGlobalXCodeGenerator.cxx
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@@ -2975,7 +2975,8 @@ void cmGlobalXCodeGenerator::CreateBuildSettings(cmGeneratorTarget* gtgt,
this->CreateString(extraLinkOptions));
buildSettings->AddAttribute("OTHER_REZFLAGS", this->CreateString(""));
buildSettings->AddAttribute("SECTORDER_FLAGS", this->CreateString(""));
buildSettings->AddAttribute("USE_HEADERMAP", this->CreateString("NO"));
buildSettings->AddAttribute("ALWAYS_SEARCH_USER_PATHS",
this->CreateString("NO"));
cmXCodeObject* group = this->CreateObject(cmXCodeObject::OBJECT_LIST);
group->AddObject(this->CreateString("$(inherited)"));
buildSettings->AddAttribute("WARNING_CFLAGS", group);