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-rwxr-xr-xconfigure44
-rw-r--r--configure.ac6
-rw-r--r--meson.build3
3 files changed, 53 insertions, 0 deletions
diff --git a/configure b/configure
index 62f382c1d1..5025448a05 100755
--- a/configure
+++ b/configure
@@ -6611,6 +6611,50 @@ 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.
diff --git a/configure.ac b/configure.ac
index cfb10f59ce..4cd328fc83 100644
--- a/configure.ac
+++ b/configure.ac
@@ -573,6 +573,12 @@ if test "$GCC" = yes -a "$ICC" = no; then
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=""
+ PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wcast-function-type-strict])
+ 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.
diff --git a/meson.build b/meson.build
index a62d8171cc..9df8685dfd 100644
--- a/meson.build
+++ b/meson.build
@@ -1773,6 +1773,9 @@ negative_warning_flags = [
'format-truncation',
'stringop-truncation',
+ # Suppress clang 16's strict warnings about function casts
+ 'cast-function-type-strict',
+
# To make warning_level=2 / -Wextra work, we'd need at least the following
# 'clobbered',
# 'missing-field-initializers',