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I suggest using a buildbot-test of this when it is believed ready. Yay more modern autoconf practices. |
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🤖 New build scheduled with the buildbot fleet by @tiran for commit f13a97f33c447f309c40315437a38ea4386e46f8 🤖 If you want to schedule another build, you need to add the ":hammer: test-with-buildbots" label again. |
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Outstanding!! 🚀🚀 |
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I suggest using a buildbot-test of this when it is believed ready. Yay more modern autoconf practices. All buildbots are passing except FreeBSD builder. It fails with an unrelated error in test_gdb. |
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This is so nice; great work! The macros really simplifies a lot of stuff. I left some suggestions, mainly:
There more stuff that can be cached in there, and we could simplify stuff further with more macros (for example tweaking BASECFLAGS), but this PR is already pretty huge, so perhaps it's better to split it up?
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BTW, is configure up to date? I recreated it using (homebrew supplied) autoconf 2.69 and got this diff: diff --git a/configure b/configure
index cec73c2cf9..1e433cbbff 100755
--- a/configure
+++ b/configure
@@ -793,7 +793,6 @@ infodir
docdir
oldincludedir
includedir
-runstatedir
localstatedir
sharedstatedir
sysconfdir
@@ -918,7 +917,6 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
-runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@@ -1171,15 +1169,6 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
- -runstatedir | --runstatedir | --runstatedi | --runstated \
- | --runstate | --runstat | --runsta | --runst | --runs \
- | --run | --ru | --r)
- ac_prev=runstatedir ;;
- -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
- | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
- | --run=* | --ru=* | --r=*)
- runstatedir=$ac_optarg ;;
-
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@@ -1317,7 +1306,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
- libdir localedir mandir runstatedir
+ libdir localedir mandir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@@ -1470,7 +1459,6 @@ Fine tuning of the installation directories:
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
- --runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@@ -10918,20 +10906,13 @@ $as_echo_n "checking for --enable-loadable-sqlite-extensions... " >&6; }
if test "${enable_loadable_sqlite_extensions+set}" = set; then :
enableval=$enable_loadable_sqlite_extensions;
else
- enable_loadable_sqlite_extensions=no
+ enable_loadable_sqlite_extensions="no"
fi
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_loadable_sqlite_extensions" >&5
$as_echo "$enable_loadable_sqlite_extensions" >&6; }
-if test "x$enable_loadable_sqlite_extensions" = xyes; then :
-
-
-$as_echo "#define PY_SQLITE_ENABLE_LOAD_EXTENSION 1" >>confdefs.h
-
-
-fi
-
# Check for --with-tcltk-includes=path and --with-tcltk-libs=path
@@ -14869,10 +14850,6 @@ fi
# check if sockaddr has sa_len member
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if sockaddr has sa_len member" >&5
$as_echo_n "checking if sockaddr has sa_len member... " >&6; }
-if ${ac_cv_struct_sockaddr_sa_len+:} false; then :
- $as_echo_n "(cached) " >&6
-else
-
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <sys/types.h>
@@ -14887,22 +14864,17 @@ x.sa_len = 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
- ac_cv_struct_sockaddr_sa_len=yes
-else
- ac_cv_struct_sockaddr_sa_len=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_struct_sockaddr_sa_len" >&5
-$as_echo "$ac_cv_struct_sockaddr_sa_len" >&6; }
-if test "x$ac_cv_struct_sockaddr_sa_len" = xyes; then :
-
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
$as_echo "#define HAVE_SOCKADDR_SA_LEN 1" >>confdefs.h
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
# sigh -- gethostbyname_r is a mess; it can have 3, 5 or 6 arguments :-(
@@ -18042,10 +18014,6 @@ $as_echo "$ENSUREPIP" >&6; }
# check if the dirent structure of a d_type field and DT_UNKNOWN is defined
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the dirent structure of a d_type field" >&5
$as_echo_n "checking if the dirent structure of a d_type field... " >&6; }
-if ${ac_cv_dirent_d_type+:} false; then :
- $as_echo_n "(cached) " >&6
-else
-
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
@@ -18060,23 +18028,19 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
- ac_cv_dirent_d_type=yes
+ have_dirent_d_type=yes
else
- ac_cv_dirent_d_type=no
+ have_dirent_d_type=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_dirent_d_type" >&5
+$as_echo "$have_dirent_d_type" >&6; }
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_dirent_d_type" >&5
-$as_echo "$ac_cv_dirent_d_type" >&6; }
-
-if test "x$ac_cv_dirent_d_type" = xyes; then :
-
+if test "$have_dirent_d_type" = yes; then
$as_echo "#define HAVE_DIRENT_D_TYPE 1" >>confdefs.h
-
fi
# check if the Linux getrandom() syscall is available
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BTW, is configure up to date? I recreated it using autoconf 2.69 and got this diff: Some distributions have made minor alterations to autoconf or ship different versions of autoarchive. I created https://quay.io/repository/tiran/cpython_autoconf to reduce the noise. It's a minimal Alpine image with autoconf 2.69, autoarchive, and pkg-config m4 macros. |
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There more stuff that can be cached in there, and we could simplify stuff further with more macros (for example tweaking BASECFLAGS), but this PR is already pretty huge, so perhaps it's better to split it up? Thanks for the review! Yes, there are a handful of checks that are not cached yet. I got most slow paths in this PR. Let's handle the remaining places in a new PR. I think we can also adopt autoconf 2.71 soon. It's reducing the runtime of fully cached configure by another second. |
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Sounds like a good plan! |
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Almost all checks are now cached by AC_CACHE_CHECK().
Common patterns are replaced by helper macros.
Variable names now use naming scheme ac_cv_func_$funcname,
ac_cv_lib_$library_$funcname, or ac_cv_header_$headername_h.
SYS_SELECT_WITH_SYS_TIME is no longer used.
uuid_create and uuid_enc_be are provided by libc on BSD. It is
safe to use AC_CHECK_FUNCS here.
Caching speeds up ./configure -C from ~ 4s to 2.6s on my system.
Signed-off-by: Christian Heimes christian@python.org
https://bugs.python.org/issue45723