build: add -Wleading-whitespace=spaces
What the developer wrote
Authored by fanquake
build: add -Wleading-whitespace=spaces
This is available in GCC 15. See
https://gcc.gnu.org/gcc-15/changes.html.
What changed, and why it matters
This commit adds a new compiler warning flag that flags leading whitespace characters that are spaces (rather than tabs). It is a code-style/build-hygiene change with no security relevance visible in the commit or supplied references.
No security action required. Treat as routine build-system maintenance.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The change appends -Wleading-whitespace=spaces to the warn_interface target in CMakeLists.txt when using GCC 15 or compatible compilers. The flag warns when source lines begin with spaces instead of tabs. It is a build-time diagnostic addition; no functional code, parsing logic, or security boundary is modified.
Changed components
CMakeLists.txt build configurationInspect captured patch +1 / −0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3749cf7c..77be7e6c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -463,6 +463,7 @@ else()
try_append_cxx_flags("-Wself-assign" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wbidi-chars=any" TARGET warn_interface SKIP_LINK)
try_append_cxx_flags("-Wundef" TARGET warn_interface SKIP_LINK)
+ try_append_cxx_flags("-Wleading-whitespace=spaces" TARGET warn_interface SKIP_LINK)
# Some compilers (gcc) ignore unknown -Wno-* options, but warn about all
# unknown options if any other warning is produced. Test the -Wfoo case, and
Why this scored 15/100
Community notes
Notes can correct, qualify, or add evidence to the AI analysis. Every note shown here has been validated by a human moderator.
The AI analysis stands alone for now. Submit a note if you can add evidence or important context.