Fix-Point commented on code in PR #15936:
URL: https://github.com/apache/nuttx/pull/15936#discussion_r1982429178
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libs/libnx/nxfonts/CMakeLists.txt:
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@@ -251,5 +251,12 @@ if(CONFIG_NXFONTS)
add_font(tom-thumb-4x6 43)
endif()
+ # Fix -Wshadow warnings for built-in bitops on x86_64
+
+ if(CONFIG_ARCH_X86_64)
+ list(APPEND CFLAGS -fno-builtin-ffs -fno-builtin-ffsl -fno-builtin-ffsll)
+ list(APPEND CFLAGS -fno-builtin-fls -fno-builtin-flsl -fno-builtin-flsll)
Review Comment:
In fact, I first tried to change `ffs` and `fls` into macro functions, but
it would break the compilation of some third-party libraries if these libraries
defined something like `extern int ffs(...)`.
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