[PR] ghs: replace the "-Wall" build option with the "-ghstd=last" [nuttx]

["extinguish (via GitHub)" <gi...@apache.org>]

extinguish opened a new pull request, #17856:
URL: https://github.com/apache/nuttx/pull/17856

   ## Summary
   
   Update Green Hills (GHS) toolchain warning configuration by replacing the deprecated -Wall flag with the recommended -ghstd=last option in both CMake and Makefile build systems. This change applies only when building with the GHS toolchain, while other toolchains continue to use -Wall.
   
   ## Impact
   
   1. Aligns NuttX build configuration with Green Hills compiler best practices and documentation recommendations
   2. No impact on other toolchains (GCC, Clang, etc.) which continue to use -Wall
   
   ## Testing
   
   1. Verified successful compilation with Green Hills toolchain using the new -ghstd=last flag
   2. Confirmed that the change is properly conditionalized and does not affect non-GHS toolchain builds
   


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Re: [PR] arch/arm: replace the "-Wall" build option with the "-ghstd=last" [nuttx]

["xiaoxiang781216 (via GitHub)" <gi...@apache.org>]

xiaoxiang781216 merged PR #17856:
URL: https://github.com/apache/nuttx/pull/17856


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