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configure: Add warning discovery section for clang.

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This commit is contained in:
Jason Volk 2022-06-13 18:00:27 -07:00
parent 2237ed4feb
commit 471dc16275
1 changed files with 61 additions and 11 deletions
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72
configure.ac
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@ -784,11 +784,6 @@ dnl
STACK_USAGE_WARNING=16384
FRAME_SIZE_WARNING=8192
CWARNS=""
AC_MSG_CHECKING(whether to disable warnings)
AC_ARG_ENABLE(warnings,
RB_HELP_STRING([--disable-warnings], [Disable all sorts of warnings like a rockstar]),
[],
[
RB_MAYBE_CXXFLAG([-Wall], charybdis_cv_c_gcc_w_all)
RB_MAYBE_CXXFLAG([-Wextra], charybdis_cv_c_gcc_w_extra)
@ -878,12 +873,6 @@ AM_COND_IF([DEBUG],
])
])
AM_COND_IF_NOT([UNTUNED],
[
dnl When tuning for a specific target ignore the ABI compat warnings
RB_MAYBE_CXXFLAG([-Wno-psabi], charybdis_cv_c_gcc_w_psabi)
])
dnl
dnl List of compiler-specific / incompatible warning options
dnl
@ -910,11 +899,72 @@ AM_COND_IF([GCC],
AM_COND_IF([CLANG],
[
RB_MAYBE_CXXFLAG([-Wundefined-reinterpret-cast], charybdis_cv_c_gcc_w_undefined_reinterpret_cast)
RB_MAYBE_CXXFLAG([-Wconditional-uninitialized], charybdis_cv_c_gcc_w_conditional_uninitialized)
RB_MAYBE_CXXFLAG([-Wno-mismatched-tags], charybdis_cv_c_gcc_w_mismatched_tags)
RB_MAYBE_CXXFLAG([-Wno-format-security], charybdis_cv_c_gcc_w_format_security)
RB_MAYBE_CXXFLAG([-Wno-unknown-warning-option], charybdis_cv_c_gcc_w_unknown_warning_option)
])
dnl Warning discovery section
AC_MSG_CHECKING(whether to enable warning discovery)
AC_ARG_ENABLE(every-warning,
RB_HELP_STRING([--enable-every-warning], [Enable warning discovery (-Weverything)]),
[
RB_MAYBE_CXXFLAG([-Weverything], charybdis_cv_c_gcc_w_everything)
dnl Ignored a priori
RB_MAYBE_CXXFLAG([-Wno-c++98-compat], charybdis_cv_c_gcc_w_no_cxx98_compat)
RB_MAYBE_CXXFLAG([-Wno-c++98-compat-pedantic], charybdis_cv_c_gcc_w_no_cxx98_compat_pedantic)
RB_MAYBE_CXXFLAG([-Wno-c++98-compat-extra-semi], charybdis_cv_c_gcc_w_no_cxx98_compat_extra_semi)
RB_MAYBE_CXXFLAG([-Wno-pre-c++14-compat], charybdis_cv_c_gcc_w_no_pre_cxx14_compat)
RB_MAYBE_CXXFLAG([-Wno-pre-c++17-compat], charybdis_cv_c_gcc_w_no_pre_cxx17_compat)
dnl Ignored by design
RB_MAYBE_CXXFLAG([-Wno-comma], charybdis_cv_c_gcc_w_no_comma)
RB_MAYBE_CXXFLAG([-Wno-shadow], charybdis_cv_c_gcc_w_no_shadow)
RB_MAYBE_CXXFLAG([-Wno-shadow-field], charybdis_cv_c_gcc_w_no_shadow_field)
RB_MAYBE_CXXFLAG([-Wno-shadow-field-in-constructor], charybdis_cv_c_gcc_w_no_shadow_field_in_constructor)
RB_MAYBE_CXXFLAG([-Wno-shadow-uncaptured-local], charybdis_cv_c_gcc_w_no_shadow_uncaptured_local)
RB_MAYBE_CXXFLAG([-Wno-gnu-conditional-omitted-operand], charybdis_cv_c_gcc_w_no_gnu_conditional_omitted_operand)
RB_MAYBE_CXXFLAG([-Wno-ctad-maybe-unsupported], charybdis_cv_c_gcc_w_no_ctad_maybe_unsupported)
RB_MAYBE_CXXFLAG([-Wno-disabled-macro-expansion], charybdis_cv_c_gcc_w_no_disabled_macro_expansion)
dnl Ignored for now
RB_MAYBE_CXXFLAG([-Wno-padded], charybdis_cv_c_gcc_w_no_padded)
RB_MAYBE_CXXFLAG([-Wno-sign-conversion], charybdis_cv_c_gcc_w_no_sign_conversion)
RB_MAYBE_CXXFLAG([-Wno-unused-exception-parameter], charybdis_cv_c_gcc_w_no_unused_exception_parameter)
RB_MAYBE_CXXFLAG([-Wno-extra-semi], charybdis_cv_c_gcc_w_no_extra_semi)
RB_MAYBE_CXXFLAG([-Wno-extra-semi-stmt], charybdis_cv_c_gcc_w_no_extra_semi_stmt)
RB_MAYBE_CXXFLAG([-Wno-weak-vtables], charybdis_cv_c_gcc_w_no_weak_vtables)
RB_MAYBE_CXXFLAG([-Wno-global-constructors], charybdis_cv_c_gcc_w_no_global_constructors)
dnl Ignored with issue low priority
RB_MAYBE_CXXFLAG([-Wno-old-style-cast], charybdis_cv_c_gcc_w_no_old_style_cast)
RB_MAYBE_CXXFLAG([-Wno-float-conversion], charybdis_cv_c_gcc_w_no_implicit_int_conversion)
RB_MAYBE_CXXFLAG([-Wno-implicit-int-conversion], charybdis_cv_c_gcc_w_no_implicit_int_conversion)
dnl Ignored with issue high priority
RB_MAYBE_CXXFLAG([-Wno-reserved-identifier], charybdis_cv_c_gcc_w_no_reserved_identifier)
RB_MAYBE_CXXFLAG([-Wno-reserved-macro-identifier], charybdis_cv_c_gcc_w_no_reserved_macro_identifier)
])
AM_COND_IF_NOT([UNTUNED],
[
dnl When tuning for a specific target ignore the ABI compat warnings
RB_MAYBE_CXXFLAG([-Wno-psabi], charybdis_cv_c_gcc_w_psabi)
])
dnl Truncate warning flags if disabled
AC_MSG_CHECKING(whether to disable warnings)
AC_ARG_ENABLE(warnings,
RB_HELP_STRING([--disable-warnings], [Disable all sorts of warnings like a rockstar]),
[
AC_MSG_RESULT([yes])
CWARNS=""
], [
AC_MSG_RESULT([no])
])
dnl assume the warning flags