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fix: hide multiple useless warnings for default build #6773

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Merged
PastaPastaPasta merged 2 commits into from
Jul 30, 2025
Merged

fix: hide multiple useless warnings for default build #6773

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82d73aa
fix: hide multiple useless warnings for default build
knst Jul 26, 2025
eacd3df
fmt: remove extra spaces in configure.ac
knst Jul 26, 2025
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46 changes: 23 additions & 23 deletions configure.ac
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Original file line number Diff line number Diff line change
Expand Up @@ -450,15 +450,6 @@ if test "$enable_werror" = "yes"; then
fi
ERROR_CXXFLAGS=$CXXFLAG_WERROR

dnl -Warray-bounds cause problems with GCC. Do not treat these warnings as errors.
dnl Suppress -Warray-bounds entirely because of noisy output, currently unhappy with immer implementation.
AX_CHECK_COMPILE_FLAG([-Warray-bounds], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-array-bounds"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
#error Non-GCC compiler detected, not setting flag
#endif
int main(void) { return 0; }
])])

dnl -Wattributes cause problems with some versions of GCC. Do not treat these warnings as errors.
AX_CHECK_COMPILE_FLAG([-Wattributes], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-error=attributes"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
Expand All @@ -478,22 +469,31 @@ if test "$enable_werror" = "yes"; then
#endif
int main(void) { return 0; }
])])

dnl -Wstringop-overread and -Wstringop-overflow are broken in GCC. Suppress warnings entirely to avoid noisy output.
AX_CHECK_COMPILE_FLAG([-Wstringop-overread], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-stringop-overread"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
#error Non-GCC compiler detected, not setting flag
#endif
int main(void) { return 0; }
])])
AX_CHECK_COMPILE_FLAG([-Wstringop-overflow], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-stringop-overflow"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
#error Non-GCC compiler detected, not setting flag
#endif
int main(void) { return 0; }
])])
fi

dnl -Warray-bounds cause problems with GCC. Do not treat these warnings as errors.
dnl Suppress -Warray-bounds entirely because of noisy output, currently unhappy with immer implementation.
AX_CHECK_COMPILE_FLAG([-Warray-bounds], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-array-bounds"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
#error Non-GCC compiler detected, not setting flag
#endif
int main(void) { return 0; }
])])

dnl -Wstringop-overread and -Wstringop-overflow are broken in GCC. Suppress warnings entirely to avoid noisy output.
AX_CHECK_COMPILE_FLAG([-Wstringop-overread], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-stringop-overread"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
#error Non-GCC compiler detected, not setting flag
#endif
int main(void) { return 0; }
])])
AX_CHECK_COMPILE_FLAG([-Wstringop-overflow], [NOWARN_CXXFLAGS="$NOWARN_CXXFLAGS -Wno-stringop-overflow"], [], [$CXXFLAG_WERROR], [AC_LANG_SOURCE([
#if defined(__clang__) || defined(__INTEL_COMPILER) || !defined(__GNUC__)
#error Non-GCC compiler detected, not setting flag
#endif
int main(void) { return 0; }
])])

AX_CHECK_COMPILE_FLAG([-Wall], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wall"], [], [$CXXFLAG_WERROR])
AX_CHECK_COMPILE_FLAG([-Wextra], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wextra"], [], [$CXXFLAG_WERROR])
AX_CHECK_COMPILE_FLAG([-Wgnu], [WARN_CXXFLAGS="$WARN_CXXFLAGS -Wgnu"], [], [$CXXFLAG_WERROR])
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