diff --git a/configure b/configure index c864825785c..4c5629d53af 100755 --- a/configure +++ b/configure @@ -4474,6 +4474,73 @@ fi if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-unused-command-line-argument" fi + # Remove clang 12+'s compound-token-split-by-macro, as this causes a lot + # of warnings when building plperl because of Perl. Like previously, test + # for the positive form and add the negative form + NOT_THE_CFLAGS="" + { $as_echo "$as_me:$LINENO: checking whether $CC supports -Wcompound-token-split-by-macro" >&5 +$as_echo_n "checking whether $CC supports -Wcompound-token-split-by-macro... " >&6; } +if test "${pgac_cv_prog_cc_cflags__Wcompound_token_split_by_macro+set}" = set; then + $as_echo_n "(cached) " >&6 +else + pgac_save_CFLAGS=$CFLAGS +CFLAGS="$pgac_save_CFLAGS -Wcompound-token-split-by-macro" +ac_save_c_werror_flag=$ac_c_werror_flag +ac_c_werror_flag=yes +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (ac_try="$ac_compile" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\"" +$as_echo "$ac_try_echo") >&5 + (eval "$ac_compile") 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { + test -z "$ac_c_werror_flag" || + test ! -s conftest.err + } && test -s conftest.$ac_objext; then + pgac_cv_prog_cc_cflags__Wcompound_token_split_by_macro=yes +else + $as_echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + pgac_cv_prog_cc_cflags__Wcompound_token_split_by_macro=no +fi + +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +ac_c_werror_flag=$ac_save_c_werror_flag +CFLAGS="$pgac_save_CFLAGS" +fi +{ $as_echo "$as_me:$LINENO: result: $pgac_cv_prog_cc_cflags__Wcompound_token_split_by_macro" >&5 +$as_echo "$pgac_cv_prog_cc_cflags__Wcompound_token_split_by_macro" >&6; } +if test x"$pgac_cv_prog_cc_cflags__Wcompound_token_split_by_macro" = x"yes"; then + NOT_THE_CFLAGS="${NOT_THE_CFLAGS} -Wcompound-token-split-by-macro" +fi + + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-compound-token-split-by-macro" + fi # Similarly disable useless truncation warnings from gcc 8+ NOT_THE_CFLAGS="" { $as_echo "$as_me:$LINENO: checking whether $CC supports -Wformat-truncation" >&5 diff --git a/configure.in b/configure.in index d030f83f796..3314fd98a15 100644 --- a/configure.in +++ b/configure.in @@ -434,6 +434,14 @@ if test "$GCC" = yes -a "$ICC" = no; then if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-unused-command-line-argument" fi + # Remove clang 12+'s compound-token-split-by-macro, as this causes a lot + # of warnings when building plperl because of Perl. Like previously, test + # for the positive form and add the negative form + NOT_THE_CFLAGS="" + PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wcompound-token-split-by-macro]) + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-compound-token-split-by-macro" + fi # Similarly disable useless truncation warnings from gcc 8+ NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation])