mirror of https://github.com/python/cpython
gh-100540: Remove obsolete '--with-system-ffi' configure option (GH-100544)
It has had no effect on non-macOS platforms for a long time, and has had the non-obvious effect of invoking `pkg_config` and not setting `-DUSING_APPLE_OS_LIBFFI` on macOS since GH-22855.
This commit is contained in:
Zachary Ware
GitHub
parent
fd4b55ff17
commit
25590eb5de
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@ -471,11 +471,6 @@ Libraries options
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Build the :mod:`pyexpat` module using an installed ``expat`` library
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(default is no).
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.. cmdoption:: --with-system-ffi
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Build the :mod:`_ctypes` extension module using an installed ``ffi``
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library, see the :mod:`ctypes` module (default is system-dependent).
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.. cmdoption:: --with-system-libmpdec
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Build the ``_decimal`` extension module using an installed ``mpdec``
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@ -0,0 +1,8 @@
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Removed the ``--with-system-ffi`` ``configure`` option; ``libffi`` must
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now always be supplied by the system on all non-Windows platforms. The
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option has had no effect on non-Darwin platforms for several releases, and
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in 3.11 only had the non-obvious effect of invoking ``pkg-config`` to
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find ``libffi`` and never setting ``-DUSING_APPLE_OS_LIBFFI``. Now on
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Darwin platforms ``configure`` will first check for the OS ``libffi`` and
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then fall back to the same processing as other platforms if it is not
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found.
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@ -1064,7 +1064,6 @@ with_hash_algorithm
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with_tzpath
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with_libs
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with_system_expat
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with_system_ffi
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with_system_libmpdec
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with_decimal_contextvar
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enable_loadable_sqlite_extensions
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@ -1847,9 +1846,6 @@ Optional Packages:
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--with-libs='lib1 ...' link against additional libs (default is no)
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--with-system-expat build pyexpat module using an installed expat
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library, see Doc/library/pyexpat.rst (default is no)
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--with-system-ffi build _ctypes module using an installed ffi library,
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see Doc/library/ctypes.rst (default is
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system-dependent)
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--with-system-libmpdec build _decimal module using an installed libmpdec
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library, see Doc/library/decimal.rst (default is no)
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--with-decimal-contextvar
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@ -12516,43 +12512,77 @@ fi
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# Check for use of the system libffi library
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-system-ffi" >&5
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$as_echo_n "checking for --with-system-ffi... " >&6; }
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# Check whether --with-system_ffi was given.
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if test "${with_system_ffi+set}" = set; then :
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withval=$with_system_ffi;
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fi
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if test "$ac_sys_system" = "Darwin"
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then
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case "$with_system_ffi" in
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"")
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with_system_ffi="no"
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;;
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yes|no)
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;;
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*)
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as_fn_error $? "--with-system-ffi accepts no arguments" "$LINENO" 5
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;;
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esac
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_system_ffi" >&5
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$as_echo "$with_system_ffi" >&6; }
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else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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if test "$with_system_ffi" != ""
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then
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: --with(out)-system-ffi is ignored on this platform" >&5
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$as_echo "$as_me: WARNING: --with(out)-system-ffi is ignored on this platform" >&2;}
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fi
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with_system_ffi="yes"
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fi
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have_libffi=missing
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if test "x$with_system_ffi" = xyes; then :
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if test "x$ac_sys_system" = xDarwin; then :
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save_CFLAGS=$CFLAGS
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save_CPPFLAGS=$CPPFLAGS
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save_LDFLAGS=$LDFLAGS
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save_LIBS=$LIBS
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CFLAGS="-I${SDKROOT}/usr/include/ffi $CFLAGS"
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ac_fn_c_check_header_mongrel "$LINENO" "ffi.h" "ac_cv_header_ffi_h" "$ac_includes_default"
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if test "x$ac_cv_header_ffi_h" = xyes; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ffi_call in -lffi" >&5
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$as_echo_n "checking for ffi_call in -lffi... " >&6; }
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if ${ac_cv_lib_ffi_ffi_call+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_check_lib_save_LIBS=$LIBS
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LIBS="-lffi $LIBS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char ffi_call ();
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int
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main ()
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{
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return ffi_call ();
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_lib_ffi_ffi_call=yes
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else
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ac_cv_lib_ffi_ffi_call=no
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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LIBS=$ac_check_lib_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ffi_ffi_call" >&5
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$as_echo "$ac_cv_lib_ffi_ffi_call" >&6; }
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if test "x$ac_cv_lib_ffi_ffi_call" = xyes; then :
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have_libffi=yes
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LIBFFI_CFLAGS="-I${SDKROOT}/usr/include/ffi -DUSING_APPLE_OS_LIBFFI=1"
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LIBFFI_LIBS="-lffi"
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fi
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fi
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CFLAGS=$save_CFLAGS
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CPPFLAGS=$save_CPPFLAGS
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LDFLAGS=$save_LDFLAGS
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LIBS=$save_LIBS
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fi
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if test "x$have_libffi" = xmissing; then :
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pkg_failed=no
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@ -12762,80 +12792,6 @@ else
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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$as_echo "yes" >&6; }
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have_libffi=yes
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fi
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else
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if test "x$ac_sys_system" = xDarwin; then :
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save_CFLAGS=$CFLAGS
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save_CPPFLAGS=$CPPFLAGS
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save_LDFLAGS=$LDFLAGS
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save_LIBS=$LIBS
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CFLAGS="-I${SDKROOT}/usr/include/ffi $CFLAGS"
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ac_fn_c_check_header_mongrel "$LINENO" "ffi.h" "ac_cv_header_ffi_h" "$ac_includes_default"
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if test "x$ac_cv_header_ffi_h" = xyes; then :
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{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ffi_call in -lffi" >&5
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$as_echo_n "checking for ffi_call in -lffi... " >&6; }
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if ${ac_cv_lib_ffi_ffi_call+:} false; then :
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$as_echo_n "(cached) " >&6
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else
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ac_check_lib_save_LIBS=$LIBS
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LIBS="-lffi $LIBS"
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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/* Override any GCC internal prototype to avoid an error.
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Use char because int might match the return type of a GCC
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builtin and then its argument prototype would still apply. */
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#ifdef __cplusplus
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extern "C"
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#endif
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char ffi_call ();
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int
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main ()
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{
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return ffi_call ();
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;
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return 0;
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}
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_ACEOF
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if ac_fn_c_try_link "$LINENO"; then :
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ac_cv_lib_ffi_ffi_call=yes
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else
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ac_cv_lib_ffi_ffi_call=no
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fi
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rm -f core conftest.err conftest.$ac_objext \
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conftest$ac_exeext conftest.$ac_ext
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LIBS=$ac_check_lib_save_LIBS
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fi
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{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_ffi_ffi_call" >&5
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$as_echo "$ac_cv_lib_ffi_ffi_call" >&6; }
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if test "x$ac_cv_lib_ffi_ffi_call" = xyes; then :
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have_libffi=yes
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LIBFFI_CFLAGS="-I${SDKROOT}/usr/include/ffi -DUSING_APPLE_OS_LIBFFI=1"
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LIBFFI_LIBS="-lffi"
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else
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have_libffi=no
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fi
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fi
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CFLAGS=$save_CFLAGS
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CPPFLAGS=$save_CPPFLAGS
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LDFLAGS=$save_LDFLAGS
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LIBS=$save_LIBS
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fi
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fi
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56
configure.ac
56
configure.ac
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@ -3705,36 +3705,22 @@ AS_VAR_IF([with_system_expat], [yes], [
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AC_SUBST([LIBEXPAT_CFLAGS])
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AC_SUBST([LIBEXPAT_INTERNAL])
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# Check for use of the system libffi library
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AC_MSG_CHECKING(for --with-system-ffi)
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AC_ARG_WITH(system_ffi,
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AS_HELP_STRING([--with-system-ffi], [build _ctypes module using an installed ffi library, see Doc/library/ctypes.rst (default is system-dependent)]),,,)
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if test "$ac_sys_system" = "Darwin"
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then
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case "$with_system_ffi" in
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"")
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with_system_ffi="no"
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;;
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yes|no)
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;;
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*)
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AC_MSG_ERROR([--with-system-ffi accepts no arguments])
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;;
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esac
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AC_MSG_RESULT($with_system_ffi)
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else
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AC_MSG_RESULT(yes)
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if test "$with_system_ffi" != ""
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then
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AC_MSG_WARN([--with(out)-system-ffi is ignored on this platform])
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fi
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with_system_ffi="yes"
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fi
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dnl detect libffi
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have_libffi=missing
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AS_VAR_IF([with_system_ffi], [yes], [
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AS_VAR_IF([ac_sys_system], [Darwin], [
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WITH_SAVE_ENV([
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CFLAGS="-I${SDKROOT}/usr/include/ffi $CFLAGS"
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AC_CHECK_HEADER([ffi.h], [
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AC_CHECK_LIB([ffi], [ffi_call], [
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dnl use ffi from SDK root
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have_libffi=yes
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LIBFFI_CFLAGS="-I${SDKROOT}/usr/include/ffi -DUSING_APPLE_OS_LIBFFI=1"
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LIBFFI_LIBS="-lffi"
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])
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])
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])
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])
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AS_VAR_IF([have_libffi], [missing], [
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PKG_CHECK_MODULES([LIBFFI], [libffi], [have_libffi=yes], [
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WITH_SAVE_ENV([
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CPPFLAGS="$CPPFLAGS $LIBFFI_CFLAGS"
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@ -3748,20 +3734,6 @@ AS_VAR_IF([with_system_ffi], [yes], [
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])
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])
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])
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], [
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AS_VAR_IF([ac_sys_system], [Darwin], [
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WITH_SAVE_ENV([
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CFLAGS="-I${SDKROOT}/usr/include/ffi $CFLAGS"
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AC_CHECK_HEADER([ffi.h], [
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AC_CHECK_LIB([ffi], [ffi_call], [
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dnl use ffi from SDK root
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have_libffi=yes
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LIBFFI_CFLAGS="-I${SDKROOT}/usr/include/ffi -DUSING_APPLE_OS_LIBFFI=1"
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LIBFFI_LIBS="-lffi"
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], [have_libffi=no])
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])
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])
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])
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])
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AS_VAR_IF([have_libffi], [yes], [
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