[PATCH 05/59] Suppress -Wmaybe-uninitialized only for gcc
Sam James
sam@gentoo.org
Mon Oct 20 19:42:30 GMT 2025
Adhemerval Zanella <adhemerval.zanella@linaro.org> writes:
> The warning is not supported by clang.
Reviewed-by: Sam James <sam@gentoo.org>
> ---
> elf/dl-load.c | 2 +-
> hurd/hurdsig.c | 2 +-
> iconv/loop.c | 2 +-
> iconvdata/iso-2022-cn-ext.c | 2 +-
> include/libc-diag.h | 3 +++
> locale/weight.h | 6 +++---
> locale/weightwc.h | 8 ++++----
> malloc/malloc-check.c | 2 +-
> nis/nis_table.c | 2 +-
> nptl_db/thread_dbP.h | 2 +-
> posix/regexec.c | 2 +-
> resolv/res_send.c | 10 +++++-----
> stdio-common/vfscanf-internal.c | 2 +-
> string/strcoll_l.c | 4 ++--
> string/wordcopy.c | 6 +++---
> sunrpc/clnt_udp.c | 2 +-
> sysdeps/ieee754/dbl-64/e_lgamma_r.c | 2 +-
> sysdeps/ieee754/dbl-64/s_log1p.c | 2 +-
> sysdeps/ieee754/ldbl-128/k_tanl.c | 2 +-
> sysdeps/ieee754/ldbl-128ibm/k_tanl.c | 2 +-
> sysdeps/ieee754/ldbl-96/e_lgammal_r.c | 2 +-
> sysdeps/ieee754/ldbl-96/k_tanl.c | 2 +-
> sysdeps/ieee754/soft-fp/s_ddivl.c | 2 +-
> sysdeps/ieee754/soft-fp/s_dfmal.c | 2 +-
> sysdeps/ieee754/soft-fp/s_dsqrtl.c | 2 +-
> sysdeps/ieee754/soft-fp/s_fdiv.c | 2 +-
> sysdeps/ieee754/soft-fp/s_fdivl.c | 3 +--
> sysdeps/ieee754/soft-fp/s_ffma.c | 2 +-
> sysdeps/ieee754/soft-fp/s_ffmal.c | 2 +-
> sysdeps/ieee754/soft-fp/s_fma.c | 2 +-
> sysdeps/ieee754/soft-fp/s_fmaf.c | 2 +-
> sysdeps/ieee754/soft-fp/s_fmal.c | 2 +-
> sysdeps/ieee754/soft-fp/s_fsqrt.c | 2 +-
> sysdeps/unix/sysv/linux/convert_scm_timestamps.c | 2 +-
> 34 files changed, 48 insertions(+), 46 deletions(-)
>
> diff --git a/elf/dl-load.c b/elf/dl-load.c
> index 674bae2cbb..0c57b86e3c 100644
> --- a/elf/dl-load.c
> +++ b/elf/dl-load.c
> @@ -1161,7 +1161,7 @@ _dl_map_object_from_fd (const char *name, const char *origname, int fd,
> ‘(((char *)loadcmds.113_68 + _933 + 16))[329406144173384849].mapend’ may be used uninitialized [-Wmaybe-uninitialized]
> See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106008
> */
> - DIAG_IGNORE_NEEDS_COMMENT (11, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (11, "-Wmaybe-uninitialized");
> #endif
> /* Determine whether there is a gap between the last segment
> and this one. */
> diff --git a/hurd/hurdsig.c b/hurd/hurdsig.c
> index 2f04f0ac9c..672bc06f88 100644
> --- a/hurd/hurdsig.c
> +++ b/hurd/hurdsig.c
> @@ -376,7 +376,7 @@ interrupted_reply_port_location (thread_t thread,
> /* GCC 6 and before seem to be confused by the setjmp call inside
> _hurdsig_catch_memory_fault and think that we may be returning a second
> time to here with portloc uninitialized (but we never do). */
> - DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (6, "-Wmaybe-uninitialized");
> /* Fault now if this pointer is bogus. */
> *(volatile mach_port_t *) portloc = *portloc;
> DIAG_POP_NEEDS_COMMENT;
> diff --git a/iconv/loop.c b/iconv/loop.c
> index 1378d23147..908890e56e 100644
> --- a/iconv/loop.c
> +++ b/iconv/loop.c
> @@ -194,7 +194,7 @@
> has a comment referencing this diagnostic disabling; updates in one
> place may require updates in the other. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> /* Handling of Unicode 3.1 TAG characters. Unicode recommends
> "If language codes are not relevant to the particular processing
> operation, then they should be ignored." This macro is usually
> diff --git a/iconvdata/iso-2022-cn-ext.c b/iconvdata/iso-2022-cn-ext.c
> index 47ec58f16e..2afa5e3b4d 100644
> --- a/iconvdata/iso-2022-cn-ext.c
> +++ b/iconvdata/iso-2022-cn-ext.c
> @@ -403,7 +403,7 @@ enum
> involved in determining the code page and is the indicator that
> tmpbuf[2] is initialized. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> #define BODY \
> { \
> uint32_t ch; \
> diff --git a/include/libc-diag.h b/include/libc-diag.h
> index f48b646d08..af48bca430 100644
> --- a/include/libc-diag.h
> +++ b/include/libc-diag.h
> @@ -86,9 +86,12 @@
> #ifndef __clang__
> # define DIAG_IGNORE_NEEDS_COMMENT_GCC(VERSION, WARNING) \
> DIAG_IGNORE_NEEDS_COMMENT (VERSION, WARNING)
> +# define DIAG_IGNORE_Os_NEEDS_COMMENT_GCC(VERSION, WARNING) \
> + DIAG_IGNORE_Os_NEEDS_COMMENT (VERSION, WARNING)
> # define DIAG_IGNORE_NEEDS_COMMENT_CLANG(version, option)
> #else
> # define DIAG_IGNORE_NEEDS_COMMENT_GCC(VERSION, WARNING)
> +# define DIAG_IGNORE_Os_NEEDS_COMMENT_GCC(VERSION, WARNING)
> # define DIAG_IGNORE_NEEDS_COMMENT_CLANG(version, option) \
> _Pragma (_DIAG_STR (clang diagnostic ignored option))
> #endif
> diff --git a/locale/weight.h b/locale/weight.h
> index 6242de45e2..991212a2e5 100644
> --- a/locale/weight.h
> +++ b/locale/weight.h
> @@ -32,7 +32,7 @@ findidx (const int32_t *table,
> This uninitialized use is impossible for the same reason
> as described in comments in locale/weightwc.h. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (8, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (8, "-Wmaybe-uninitialized");
> int32_t i = table[*(*cpp)++];
> DIAG_POP_NEEDS_COMMENT;
> const unsigned char *cp;
> @@ -75,7 +75,7 @@ findidx (const int32_t *table,
> of -1 for len at the same time which means that this loop
> never executes. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> for (cnt = 0; cnt < nhere && cnt < len; ++cnt)
> if (cp[cnt] != usrc[cnt])
> break;
> @@ -144,7 +144,7 @@ findidx (const int32_t *table,
> is impossible for the same reason as described
> above. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> offset += usrc[cnt] - cp[cnt];
> DIAG_POP_NEEDS_COMMENT;
> }
> diff --git a/locale/weightwc.h b/locale/weightwc.h
> index 3b6c2aec8a..4df7a27d6b 100644
> --- a/locale/weightwc.h
> +++ b/locale/weightwc.h
> @@ -33,7 +33,7 @@ findidx (const int32_t *table,
> called except in cases where those fields have been
> initialized. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> wint_t ch = *(*cpp)++;
> DIAG_POP_NEEDS_COMMENT;
> int32_t i = __collidx_table_lookup ((const char *) table, ch);
> @@ -74,7 +74,7 @@ findidx (const int32_t *table,
> of -1 for len at the same time which means that this loop
> never executes. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> for (cnt = 0; cnt < nhere && cnt < len; ++cnt)
> if (cp[cnt] != usrc[cnt])
> break;
> @@ -102,7 +102,7 @@ findidx (const int32_t *table,
> might be used uninitialized. This is impossible for the
> same reason as described above. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> for (cnt = 0; cnt < nhere - 1 && cnt < len; ++cnt)
> if (cp[cnt] != usrc[cnt])
> break;
> @@ -119,7 +119,7 @@ findidx (const int32_t *table,
> might be used uninitialized. This is impossible for the
> same reason as described above. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> if (cp[nhere - 1] > usrc[nhere - 1])
> {
> cp += 2 * nhere;
> diff --git a/malloc/malloc-check.c b/malloc/malloc-check.c
> index bfb88ca84e..820d6f5829 100644
> --- a/malloc/malloc-check.c
> +++ b/malloc/malloc-check.c
> @@ -318,7 +318,7 @@ realloc_check (void *oldmem, size_t bytes)
> #if __GNUC_PREREQ (7, 0)
> /* GCC 7 warns about magic_p may be used uninitialized. But we never
> reach here if magic_p is uninitialized. */
> - DIAG_IGNORE_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> #endif
> /* mem2chunk_check changed the magic byte in the old chunk.
> If newmem is NULL, then the old chunk will still be used though,
> diff --git a/nis/nis_table.c b/nis/nis_table.c
> index 64df81063b..7b791b7e0a 100644
> --- a/nis/nis_table.c
> +++ b/nis/nis_table.c
> @@ -180,7 +180,7 @@ __follow_path (char **tablepath, char **tableptr, struct ib_request *ibreq,
> /* Since tableptr is only set here, and it's set when tablepath is NULL,
> which it is initially defined as, we know it will always be set here. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (4.7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (4.7, "-Wmaybe-uninitialized");
>
> if (*tableptr == NULL)
> return NIS_NOTFOUND;
> diff --git a/nptl_db/thread_dbP.h b/nptl_db/thread_dbP.h
> index 41a46764e3..25c49fd9e9 100644
> --- a/nptl_db/thread_dbP.h
> +++ b/nptl_db/thread_dbP.h
> @@ -176,7 +176,7 @@ extern ps_err_e td_mod_lookup (struct ps_prochandle *ps, const char *modname,
> when DB_GET_FIELD_ADDRESS is called with a slot for ptr, the slot is
> always initialized. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> #define DB_GET_FIELD_ADDRESS(var, ta, ptr, type, field, idx) \
> ((var) = (ptr), _td_locate_field ((ta), (ta)->ta_field_##type##_##field, \
> SYM_##type##_FIELD_##field, \
> diff --git a/posix/regexec.c b/posix/regexec.c
> index fc1310025f..de0d838fa4 100644
> --- a/posix/regexec.c
> +++ b/posix/regexec.c
> @@ -3772,7 +3772,7 @@ check_node_accept_bytes (const re_dfa_t *dfa, Idx node_idx,
> however the loop will be executed iff ncoll_syms is larger
> than 0,which means extra will be already initialized. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (8, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (8, "-Wmaybe-uninitialized");
> const unsigned char *coll_sym = extra + cset->coll_syms[i];
> DIAG_POP_NEEDS_COMMENT;
> /* Compare the length of input collating element and
> diff --git a/resolv/res_send.c b/resolv/res_send.c
> index 802675995d..3beb7dc732 100644
> --- a/resolv/res_send.c
> +++ b/resolv/res_send.c
> @@ -266,7 +266,7 @@ __res_context_send (struct resolv_context *ctx,
> Here the variable n is set to the return value of send_vc.
> See below. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (9, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (9, "-Wmaybe-uninitialized");
> int n;
> DIAG_POP_NEEDS_COMMENT;
>
> @@ -364,7 +364,7 @@ __res_context_send (struct resolv_context *ctx,
> return (-1);
> /* See comment at the declaration of n. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (9, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (9, "-Wmaybe-uninitialized");
> if (n == 0 && (buf2 == NULL || *resplen2 == 0))
> goto next_ns;
> DIAG_POP_NEEDS_COMMENT;
> @@ -388,7 +388,7 @@ __res_context_send (struct resolv_context *ctx,
>
> /* See comment at the declaration of n. Note: resplen = n; */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (9, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (9, "-Wmaybe-uninitialized");
> /* Mask the AD bit in both responses unless it is
> marked trusted. */
> if (resplen > HFIXEDSZ)
> @@ -580,7 +580,7 @@ send_vc(res_state statp,
> a false-positive.
> */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> int resplen;
> DIAG_POP_NEEDS_COMMENT;
> struct iovec iov[4];
> @@ -852,7 +852,7 @@ reopen (res_state statp, int *terrno, int ns)
> the function return -1 before control flow reaches
> the call to connect with slen. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> if (__connect (EXT (statp).nssocks[ns], nsap, slen) < 0) {
> DIAG_POP_NEEDS_COMMENT;
> __res_iclose(statp, false);
> diff --git a/stdio-common/vfscanf-internal.c b/stdio-common/vfscanf-internal.c
> index d8facb6e89..c6361f74e0 100644
> --- a/stdio-common/vfscanf-internal.c
> +++ b/stdio-common/vfscanf-internal.c
> @@ -1631,7 +1631,7 @@ __vfscanf_internal (FILE *s, const char *format, va_list argptr,
> above, but the test for "map != NULL" is done
> inside the loop here and outside the loop there. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (4.7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (4.7, "-Wmaybe-uninitialized");
>
> if (__glibc_unlikely (map != NULL))
> wcdigits[n] = digits_extended[n];
> diff --git a/string/strcoll_l.c b/string/strcoll_l.c
> index 72388f0322..c152421744 100644
> --- a/string/strcoll_l.c
> +++ b/string/strcoll_l.c
> @@ -180,7 +180,7 @@ get_next_seq (coll_seq *seq, int nrules, const unsigned char *rulesets,
> ensures that seq->save_idx was saved to first and contains a
> valid value. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> len = weights[idx++];
> DIAG_POP_NEEDS_COMMENT;
> /* Skip over indices of previous levels. */
> @@ -299,7 +299,7 @@ STRCOLL (const STRING_TYPE *s1, const STRING_TYPE *s2, locale_t l)
> seq2. This uninitialized use is impossible for the same reason
> as described in comments in locale/weightwc.h. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> coll_seq seq1, seq2;
> DIAG_POP_NEEDS_COMMENT;
> seq1.len = 0;
> diff --git a/string/wordcopy.c b/string/wordcopy.c
> index 6926d9df7d..7bdc88643c 100644
> --- a/string/wordcopy.c
> +++ b/string/wordcopy.c
> @@ -29,7 +29,7 @@
> Since the usage is within the MERGE macro we disable the
> warning in the definition, but only in this file. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (6, "-Wmaybe-uninitialized");
> #include <memcopy.h>
> DIAG_POP_NEEDS_COMMENT;
>
> @@ -112,7 +112,7 @@ WORDCOPY_FWD_ALIGNED (long int dstp, long int srcp, size_t len)
> case. The switch case always sets 'a1' and all previous loop
> iterations will also have set 'a1' before the use. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (6, "-Wmaybe-uninitialized");
> ((op_t *) dstp)[0] = a1;
> DIAG_POP_NEEDS_COMMENT;
> do7:
> @@ -313,7 +313,7 @@ WORDCOPY_BWD_ALIGNED (long int dstp, long int srcp, size_t len)
> a0 = ((op_t *) srcp)[7];
> /* Check the comment on WORDCOPY_FWD_ALIGNED. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (6, "-Wmaybe-uninitialized");
> ((op_t *) dstp)[7] = a1;
> DIAG_POP_NEEDS_COMMENT;
> do7:
> diff --git a/sunrpc/clnt_udp.c b/sunrpc/clnt_udp.c
> index ee79b09b40..4353e5da18 100644
> --- a/sunrpc/clnt_udp.c
> +++ b/sunrpc/clnt_udp.c
> @@ -299,7 +299,7 @@ clntudp_call (/* client handle */
> inet/net-internal.h because in some other configurations GCC
> gives the warning in an inline function. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (10, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (10, "-Wmaybe-uninitialized");
> struct deadline total_deadline; /* Determined once by overall timeout. */
> DIAG_POP_NEEDS_COMMENT;
> struct deadline response_deadline; /* Determined anew for each query. */
> diff --git a/sysdeps/ieee754/dbl-64/e_lgamma_r.c b/sysdeps/ieee754/dbl-64/e_lgamma_r.c
> index 72c68b6682..c298c8ca03 100644
> --- a/sysdeps/ieee754/dbl-64/e_lgamma_r.c
> +++ b/sysdeps/ieee754/dbl-64/e_lgamma_r.c
> @@ -304,7 +304,7 @@ __ieee754_lgamma_r(double x, int *signgamp)
> although in the cases where it is used it has always been
> set. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
> if(hx<0) r = nadj - r;
> DIAG_POP_NEEDS_COMMENT;
> return r;
> diff --git a/sysdeps/ieee754/dbl-64/s_log1p.c b/sysdeps/ieee754/dbl-64/s_log1p.c
> index eeb0af859f..f52c0124fc 100644
> --- a/sysdeps/ieee754/dbl-64/s_log1p.c
> +++ b/sysdeps/ieee754/dbl-64/s_log1p.c
> @@ -205,7 +205,7 @@ __log1p (double x)
> must be 0 for c to be uninitialized and we handled that
> computation earlier without using c. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_Os_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_Os_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> return k * ln2_hi - ((hfsq - (s * (hfsq + R) + (k * ln2_lo + c))) - f);
> DIAG_POP_NEEDS_COMMENT;
> }
> diff --git a/sysdeps/ieee754/ldbl-128/k_tanl.c b/sysdeps/ieee754/ldbl-128/k_tanl.c
> index 8e93626a89..af10fbc64b 100644
> --- a/sysdeps/ieee754/ldbl-128/k_tanl.c
> +++ b/sysdeps/ieee754/ldbl-128/k_tanl.c
> @@ -143,7 +143,7 @@ __kernel_tanl (_Float128 x, _Float128 y, int iy)
> uninitialized although in the cases where it is used it has
> always been set. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> if (sign < 0)
> w = -w;
> DIAG_POP_NEEDS_COMMENT;
> diff --git a/sysdeps/ieee754/ldbl-128ibm/k_tanl.c b/sysdeps/ieee754/ldbl-128ibm/k_tanl.c
> index cd95e46089..7a42a18e55 100644
> --- a/sysdeps/ieee754/ldbl-128ibm/k_tanl.c
> +++ b/sysdeps/ieee754/ldbl-128ibm/k_tanl.c
> @@ -143,7 +143,7 @@ __kernel_tanl (long double x, long double y, int iy)
> uninitialized although in the cases where it is used it has
> always been set. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (5, "-Wmaybe-uninitialized");
> if (sign < 0)
> w = -w;
> DIAG_POP_NEEDS_COMMENT;
> diff --git a/sysdeps/ieee754/ldbl-96/e_lgammal_r.c b/sysdeps/ieee754/ldbl-96/e_lgammal_r.c
> index 148c21bb8d..d4fd7f5272 100644
> --- a/sysdeps/ieee754/ldbl-96/e_lgammal_r.c
> +++ b/sysdeps/ieee754/ldbl-96/e_lgammal_r.c
> @@ -431,7 +431,7 @@ __ieee754_lgammal_r (long double x, int *signgamp)
> in warnings that it may be used uninitialized although in the
> cases where it is used it has always been set. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
> if (se & 0x8000)
> r = nadj - r;
> DIAG_POP_NEEDS_COMMENT;
> diff --git a/sysdeps/ieee754/ldbl-96/k_tanl.c b/sysdeps/ieee754/ldbl-96/k_tanl.c
> index 43a5aa4423..462795574f 100644
> --- a/sysdeps/ieee754/ldbl-96/k_tanl.c
> +++ b/sysdeps/ieee754/ldbl-96/k_tanl.c
> @@ -140,7 +140,7 @@ __kernel_tanl (long double x, long double y, int iy)
> uninitialized although in the cases where it is used it has
> always been set. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (4.8, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (4.8, "-Wmaybe-uninitialized");
> if (sign < 0)
> w = -w;
> DIAG_POP_NEEDS_COMMENT;
> diff --git a/sysdeps/ieee754/soft-fp/s_ddivl.c b/sysdeps/ieee754/soft-fp/s_ddivl.c
> index 1ce63063d6..c7cf4b83ad 100644
> --- a/sysdeps/ieee754/soft-fp/s_ddivl.c
> +++ b/sysdeps/ieee754/soft-fp/s_ddivl.c
> @@ -37,7 +37,7 @@
> versions of GCC, it may be where R is defined using a macro or it
> may be where the macro is defined. This happens only with -O1. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (8, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (8, "-Wmaybe-uninitialized");
> #include <soft-fp.h>
> #include <double.h>
> #include <quad.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_dfmal.c b/sysdeps/ieee754/soft-fp/s_dfmal.c
> index c129929142..3c3a6ecf68 100644
> --- a/sysdeps/ieee754/soft-fp/s_dfmal.c
> +++ b/sysdeps/ieee754/soft-fp/s_dfmal.c
> @@ -37,7 +37,7 @@
> it may be where R is defined using a macro or it may be where the
> macro is defined. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
>
> #include <soft-fp.h>
> #include <double.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_dsqrtl.c b/sysdeps/ieee754/soft-fp/s_dsqrtl.c
> index f1c38947c9..70bd291cc6 100644
> --- a/sysdeps/ieee754/soft-fp/s_dsqrtl.c
> +++ b/sysdeps/ieee754/soft-fp/s_dsqrtl.c
> @@ -35,7 +35,7 @@
> does not see that they are set in all cases where they are used,
> resulting in warnings that they may be used uninitialized. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (7, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (7, "-Wmaybe-uninitialized");
> #include <soft-fp.h>
> #include <double.h>
> #include <quad.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_fdiv.c b/sysdeps/ieee754/soft-fp/s_fdiv.c
> index 071721a3d9..8d874f1119 100644
> --- a/sysdeps/ieee754/soft-fp/s_fdiv.c
> +++ b/sysdeps/ieee754/soft-fp/s_fdiv.c
> @@ -34,7 +34,7 @@
> versions of GCC, it may be where R is defined using a macro or it
> may be where the macro is defined. This happens only with -O1. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (8, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (8, "-Wmaybe-uninitialized");
> #include <soft-fp.h>
> #include <single.h>
> #include <double.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_fdivl.c b/sysdeps/ieee754/soft-fp/s_fdivl.c
> index 27a4c3e8bb..af1d23ce49 100644
> --- a/sysdeps/ieee754/soft-fp/s_fdivl.c
> +++ b/sysdeps/ieee754/soft-fp/s_fdivl.c
> @@ -32,8 +32,7 @@
> uninitialized. The location of the warning differs in different
> versions of GCC, it may be where R is defined using a macro or it
> may be where the macro is defined. This happens only with -O1. */
> -DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (8, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (8, "-Wmaybe-uninitialized");
> #include <soft-fp.h>
> #include <single.h>
> #include <quad.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_ffma.c b/sysdeps/ieee754/soft-fp/s_ffma.c
> index c60757e9af..6f358560fc 100644
> --- a/sysdeps/ieee754/soft-fp/s_ffma.c
> +++ b/sysdeps/ieee754/soft-fp/s_ffma.c
> @@ -35,7 +35,7 @@
> it may be where R is defined using a macro or it may be where the
> macro is defined. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
>
> #include <soft-fp.h>
> #include <single.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_ffmal.c b/sysdeps/ieee754/soft-fp/s_ffmal.c
> index dabf34055c..70cdca7da7 100644
> --- a/sysdeps/ieee754/soft-fp/s_ffmal.c
> +++ b/sysdeps/ieee754/soft-fp/s_ffmal.c
> @@ -33,7 +33,7 @@
> it may be where R is defined using a macro or it may be where the
> macro is defined. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
>
> #include <soft-fp.h>
> #include <single.h>
> diff --git a/sysdeps/ieee754/soft-fp/s_fma.c b/sysdeps/ieee754/soft-fp/s_fma.c
> index 211198c319..e0a16f5200 100644
> --- a/sysdeps/ieee754/soft-fp/s_fma.c
> +++ b/sysdeps/ieee754/soft-fp/s_fma.c
> @@ -42,7 +42,7 @@
> it may be where R is defined using a macro or it may be where the
> macro is defined. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
>
> #include "soft-fp.h"
> #include "double.h"
> diff --git a/sysdeps/ieee754/soft-fp/s_fmaf.c b/sysdeps/ieee754/soft-fp/s_fmaf.c
> index e635bd2c39..2509db1e46 100644
> --- a/sysdeps/ieee754/soft-fp/s_fmaf.c
> +++ b/sysdeps/ieee754/soft-fp/s_fmaf.c
> @@ -37,7 +37,7 @@
> it may be where R is defined using a macro or it may be where the
> macro is defined. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
>
> #include "soft-fp.h"
> #include "single.h"
> diff --git a/sysdeps/ieee754/soft-fp/s_fmal.c b/sysdeps/ieee754/soft-fp/s_fmal.c
> index 19d36c8517..f044d0e240 100644
> --- a/sysdeps/ieee754/soft-fp/s_fmal.c
> +++ b/sysdeps/ieee754/soft-fp/s_fmal.c
> @@ -40,7 +40,7 @@
> it may be where R is defined using a macro or it may be where the
> macro is defined. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (4.9, "-Wmaybe-uninitialized");
>
> #include "soft-fp.h"
> #include "quad.h"
> diff --git a/sysdeps/ieee754/soft-fp/s_fsqrt.c b/sysdeps/ieee754/soft-fp/s_fsqrt.c
> index 93109c5532..5c6d898114 100644
> --- a/sysdeps/ieee754/soft-fp/s_fsqrt.c
> +++ b/sysdeps/ieee754/soft-fp/s_fsqrt.c
> @@ -33,7 +33,7 @@
> versions of GCC, it may be where R is defined using a macro or it
> may be where the macro is defined. This happens only with -O1. */
> DIAG_PUSH_NEEDS_COMMENT;
> -DIAG_IGNORE_NEEDS_COMMENT (8, "-Wmaybe-uninitialized");
> +DIAG_IGNORE_NEEDS_COMMENT_GCC (8, "-Wmaybe-uninitialized");
> #include <soft-fp.h>
> #include <single.h>
> #include <double.h>
> diff --git a/sysdeps/unix/sysv/linux/convert_scm_timestamps.c b/sysdeps/unix/sysv/linux/convert_scm_timestamps.c
> index c87febc57c..a9a4f747bc 100644
> --- a/sysdeps/unix/sysv/linux/convert_scm_timestamps.c
> +++ b/sysdeps/unix/sysv/linux/convert_scm_timestamps.c
> @@ -51,7 +51,7 @@ __convert_scm_timestamps (struct msghdr *msg, socklen_t msgsize)
> (done by either COMPAT_SO_TIMESTAMP_OLD or COMPAT_SO_TIMESTAMPNS_OLD)
> which will fallthrough to 'common' label. */
> DIAG_PUSH_NEEDS_COMMENT;
> - DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized");
> + DIAG_IGNORE_NEEDS_COMMENT_GCC (6, "-Wmaybe-uninitialized");
> int64_t tvts[2];
> DIAG_POP_NEEDS_COMMENT;
> int32_t tmp[2];
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