diff options
| -rwxr-xr-x | configure | 80 | ||||
| -rw-r--r-- | configure.in | 12 |
2 files changed, 92 insertions, 0 deletions
diff --git a/configure b/configure index b37a972ee0a..2fe514fcda0 100755 --- a/configure +++ b/configure @@ -4833,6 +4833,7 @@ fi # We want to suppress clang's unhelpful unused-command-line-argument warnings # but gcc won't complain about unrecognized -Wno-foo switches, so we have to # test for the positive form and if that works, add the negative form + NOT_THE_CFLAGS="" { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wunused-command-line-argument" >&5 $as_echo_n "checking whether $CC supports -Wunused-command-line-argument... " >&6; } if ${pgac_cv_prog_cc_cflags__Wunused_command_line_argument+:} false; then : @@ -4871,6 +4872,85 @@ fi if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-unused-command-line-argument" fi + # Similarly disable useless truncation warnings from gcc 8+ + NOT_THE_CFLAGS="" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wformat-truncation" >&5 +$as_echo_n "checking whether $CC supports -Wformat-truncation... " >&6; } +if ${pgac_cv_prog_cc_cflags__Wformat_truncation+:} false; then : + $as_echo_n "(cached) " >&6 +else + pgac_save_CFLAGS=$CFLAGS +CFLAGS="$pgac_save_CFLAGS -Wformat-truncation" +ac_save_c_werror_flag=$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__Wformat_truncation=yes +else + pgac_cv_prog_cc_cflags__Wformat_truncation=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:${as_lineno-$LINENO}: result: $pgac_cv_prog_cc_cflags__Wformat_truncation" >&5 +$as_echo "$pgac_cv_prog_cc_cflags__Wformat_truncation" >&6; } +if test x"$pgac_cv_prog_cc_cflags__Wformat_truncation" = x"yes"; then + NOT_THE_CFLAGS="${NOT_THE_CFLAGS} -Wformat-truncation" +fi + + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-format-truncation" + fi + NOT_THE_CFLAGS="" + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -Wstringop-truncation" >&5 +$as_echo_n "checking whether $CC supports -Wstringop-truncation... " >&6; } +if ${pgac_cv_prog_cc_cflags__Wstringop_truncation+:} false; then : + $as_echo_n "(cached) " >&6 +else + pgac_save_CFLAGS=$CFLAGS +CFLAGS="$pgac_save_CFLAGS -Wstringop-truncation" +ac_save_c_werror_flag=$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__Wstringop_truncation=yes +else + pgac_cv_prog_cc_cflags__Wstringop_truncation=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:${as_lineno-$LINENO}: result: $pgac_cv_prog_cc_cflags__Wstringop_truncation" >&5 +$as_echo "$pgac_cv_prog_cc_cflags__Wstringop_truncation" >&6; } +if test x"$pgac_cv_prog_cc_cflags__Wstringop_truncation" = x"yes"; then + NOT_THE_CFLAGS="${NOT_THE_CFLAGS} -Wstringop-truncation" +fi + + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-stringop-truncation" + fi elif test "$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.in b/configure.in index e6368292bf1..36ab6f20d07 100644 --- a/configure.in +++ b/configure.in @@ -468,10 +468,22 @@ if test "$GCC" = yes -a "$ICC" = no; then # We want to suppress clang's unhelpful unused-command-line-argument warnings # but gcc won't complain about unrecognized -Wno-foo switches, so we have to # test for the positive form and if that works, add the negative form + NOT_THE_CFLAGS="" PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wunused-command-line-argument]) if test -n "$NOT_THE_CFLAGS"; then CFLAGS="$CFLAGS -Wno-unused-command-line-argument" fi + # Similarly disable useless truncation warnings from gcc 8+ + NOT_THE_CFLAGS="" + PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wformat-truncation]) + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-format-truncation" + fi + NOT_THE_CFLAGS="" + PGAC_PROG_CC_VAR_OPT(NOT_THE_CFLAGS, [-Wstringop-truncation]) + if test -n "$NOT_THE_CFLAGS"; then + CFLAGS="$CFLAGS -Wno-stringop-truncation" + 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. |