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Better method to detect if compiler supports -ffat-lto-objects

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clang does not support this option, but the configure script was
supplying it anyway, causing warnings.
This commit is contained in:
Dianne Skoll
2023-12-12 09:23:26 -05:00
parent 2551e98d11
commit ffa3b13437
2 changed files with 4 additions and 4 deletions
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4
configure vendored
View File

@@ -4134,14 +4134,14 @@ if test "$GCC" = yes; then
f=-flto=auto
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $f" >&5
printf %s "checking whether $CC supports $f... " >&6; }
if $CC -E $f /dev/null > /dev/null 2>&1 ; then
if $CC -Werror -E $f - < /dev/null > /dev/null 2>&1 ; then
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
CFLAGS="$CFLAGS $f"
f=-ffat-lto-objects
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether $CC supports $f" >&5
printf %s "checking whether $CC supports $f... " >&6; }
if $CC -E $f /dev/null > /dev/null 2>&1 ; then
if $CC -Werror -E $f - < /dev/null > /dev/null 2>&1 ; then
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
printf "%s\n" "yes" >&6; }
CFLAGS="$CFLAGS $f"

4
configure.in
View File

@@ -50,12 +50,12 @@ if test "$GCC" = yes; then
# Check for link-time optimization support
f=-flto=auto
AC_MSG_CHECKING([whether $CC supports $f])
if $CC -E $f /dev/null > /dev/null 2>&1 ; then
if $CC -Werror -E $f - < /dev/null > /dev/null 2>&1 ; then
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS $f"
f=-ffat-lto-objects
AC_MSG_CHECKING([whether $CC supports $f])
if $CC -E $f /dev/null > /dev/null 2>&1 ; then
if $CC -Werror -E $f - < /dev/null > /dev/null 2>&1 ; then
AC_MSG_RESULT([yes])
CFLAGS="$CFLAGS $f"
else