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| author | Thomas Munro <tmunro@postgresql.org> | 2022-12-13 10:03:28 +1300 |
|---|---|---|
| committer | Andrew Dunstan <andrew@dunslane.net> | 2024-11-08 09:44:01 +1030 |
| commit | b4363fc66e642b70f88455004e5bc6d67c65cf71 (patch) | |
| tree | bd0fc4e9c3c7cf417f630b9c576d4ff56b4c28d3 /configure | |
| parent | a5abacecb46358a7b771841e2ee0acbb1c353b79 (diff) | |
Disable clang 16's -Wcast-function-type-strict.
Clang 16 is still in development, but seawasp reveals that it has
started warning about many of our casts of function pointers (those
introduced by commit 1c27d16e, and some older ones). Disable the new
warning for now, since otherwise buildfarm animal seawasp fails, and we
have no current plans to change our strategy for these callback function
types.
May be back-patched with other Clang/LLVM 16 changes around release
time.
Discussion: https://postgr.es/m/CA%2BhUKGJvX%2BL3aMN84ksT-cGy08VHErRNip3nV-WmTx7f6Pqhyw%40mail.gmail.com
(cherry picked from commit 101c37cd342a3ae134bb3e5e0abb14ae46692b56)
Author: Thomas Munro <tmunro@postgresql.org>
Author: Alexandra Wang <alexandra.wang.oss@gmail.com>
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/configure b/configure index 97053fb4e0e..2f10787c7dd 100755 --- a/configure +++ b/configure @@ -6411,6 +6411,50 @@ fi if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-stringop-truncation" fi + # Suppress clang 16's strict warnings about function casts + NOT_THE_CFLAGS="" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${CC} supports -Wcast-function-type-strict, for NOT_THE_CFLAGS" >&5 +$as_echo_n "checking whether ${CC} supports -Wcast-function-type-strict, for NOT_THE_CFLAGS... " >&6; } +if ${pgac_cv_prog_CC_cflags__Wcast_function_type_strict+:} false; then : + $as_echo_n "(cached) " >&6 +else + pgac_save_CFLAGS=$CFLAGS +pgac_save_CC=$CC +CC=${CC} +CFLAGS="${NOT_THE_CFLAGS} -Wcast-function-type-strict" +ac_save_c_werror_flag=$ac_c_werror_flag +ac_c_werror_flag=yes +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + pgac_cv_prog_CC_cflags__Wcast_function_type_strict=yes +else + pgac_cv_prog_CC_cflags__Wcast_function_type_strict=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_c_werror_flag=$ac_save_c_werror_flag +CFLAGS="$pgac_save_CFLAGS" +CC="$pgac_save_CC" +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_prog_CC_cflags__Wcast_function_type_strict" >&5 +$as_echo "$pgac_cv_prog_CC_cflags__Wcast_function_type_strict" >&6; } +if test x"$pgac_cv_prog_CC_cflags__Wcast_function_type_strict" = x"yes"; then + NOT_THE_CFLAGS="${NOT_THE_CFLAGS} -Wcast-function-type-strict" +fi + + + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-cast-function-type-strict" + fi elif test "$ICC" = yes; then # Intel's compiler has a bug/misoptimization in checking for # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS. |