gcc-flags-and-build-triage

Helps choose gcc and g++ flags for C and C++ builds and explains GCC diagnostics and link failures. Covers pinning language standards, debug, release, size, hardening, warning, sanitizer, link-time and profile-guided configurations, DWARF detail levels, shared-library and freestanding builds, preprocessor and assembly inspection, and triage of undefined references, multiple definitions, ABI clashes and relocation overflows. Use when the user asks which GCC flags to pick, reports a GCC warning or linker error, wants to add LTO or PGO, or needs preprocessed output or generated assembly. Not for Clang or MSVC specifics, GDB workflows, linker-script authoring, build-system design, or interpreting sanitizer reports once instrumentation is enabled.

Version

v1.0.0

Size

19 KB

Updated

2026-10-13

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