bpo-45847: Port _uuid to PY_STDLIB_MOD (GH-29741)

Modules/Setup.stdlib.in

@@ -136,6 +136,8 @@
 # needs -lcrypt
 @MODULE__HASHLIB_TRUE@_hashlib _hashopenssl.c
 
+# Linux: -luuid, BSD/AIX: libc's uuid_create()
+@MODULE__UUID_TRUE@_uuid _uuidmodule.c
 
 ############################################################################
 # macOS specific modules

Modules/_uuidmodule.c

@@ -6,10 +6,12 @@
 #define PY_SSIZE_T_CLEAN
 
 #include "Python.h"
-#ifdef HAVE_UUID_UUID_H
+#if defined(HAVE_UUID_H)
-#include <uuid/uuid.h>
+  // AIX, FreeBSD, libuuid with pkgconf
-#elif defined(HAVE_UUID_H)
+  #include <uuid.h>
-#include <uuid.h>
+#elif defined(HAVE_UUID_UUID_H)
+  // libuuid without pkgconf
+  #include <uuid/uuid.h>
 #endif
 
 #ifdef MS_WINDOWS

configure

@@ -654,6 +654,8 @@ MODULE_BINASCII_FALSE
 MODULE_BINASCII_TRUE
 MODULE_ZLIB_FALSE
 MODULE_ZLIB_TRUE
+MODULE__UUID_FALSE
+MODULE__UUID_TRUE
 MODULE__SQLITE3_FALSE
 MODULE__SQLITE3_TRUE
 MODULE_NIS_FALSE
@@ -827,6 +829,8 @@ LIBEXPAT_INTERNAL
 LIBEXPAT_LDFLAGS
 LIBEXPAT_CFLAGS
 TZPATH
+LIBUUID_LIBS
+LIBUUID_CFLAGS
 SHLIBS
 CFLAGSFORSHARED
 LINKFORSHARED
@@ -1046,6 +1050,8 @@ LIBS
 CPPFLAGS
 CPP
 PROFILE_TASK
+LIBUUID_CFLAGS
+LIBUUID_LIBS
 LIBNSL_CFLAGS
 LIBNSL_LIBS
 LIBSQLITE3_CFLAGS
@@ -1833,6 +1839,10 @@ Some influential environment variables:
   CPP         C preprocessor
   PROFILE_TASK
               Python args for PGO generation task
+  LIBUUID_CFLAGS
+              C compiler flags for LIBUUID, overriding pkg-config
+  LIBUUID_LIBS
+              linker flags for LIBUUID, overriding pkg-config
   LIBNSL_CFLAGS
               C compiler flags for LIBNSL, overriding pkg-config
   LIBNSL_LIBS linker flags for LIBNSL, overriding pkg-config
@@ -10371,62 +10381,121 @@ _ACEOF
 fi
 	# Dynamic linking for HP-UX
 
-# checks for uuid.h location
+
-for ac_header in uuid/uuid.h uuid.h
+have_uuid=missing
+
+for ac_header in uuid.h
 do :
-  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+  ac_fn_c_check_header_mongrel "$LINENO" "uuid.h" "ac_cv_header_uuid_h" "$ac_includes_default"
-ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if test "x$ac_cv_header_uuid_h" = xyes; then :
-if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
-#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+#define HAVE_UUID_H 1
 _ACEOF
 
+  for ac_func in uuid_create uuid_enc_be
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+    have_uuid=yes
+    LIBUUID_CFLAGS=
+    LIBUUID_LIBS=
+
+fi
+done
+
+
 fi
 
 done
 
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate_time_safe" >&5
+
-$as_echo_n "checking for uuid_generate_time_safe... " >&6; }
+
-if ${ac_cv_lib_uuid_uuid_generate_time_safe+:} false; then :
+
-  $as_echo_n "(cached) " >&6
+
+if test "x$have_uuid" = xmissing; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBUUID" >&5
+$as_echo_n "checking for LIBUUID... " >&6; }
+
+if test -n "$LIBUUID_CFLAGS"; then
+    pkg_cv_LIBUUID_CFLAGS="$LIBUUID_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"uuid >= 2.20\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "uuid >= 2.20") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_LIBUUID_CFLAGS=`$PKG_CONFIG --cflags "uuid >= 2.20" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$LIBUUID_LIBS"; then
+    pkg_cv_LIBUUID_LIBS="$LIBUUID_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"uuid >= 2.20\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "uuid >= 2.20") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_LIBUUID_LIBS=`$PKG_CONFIG --libs "uuid >= 2.20" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
 
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <uuid/uuid.h>
-int
-main ()
-{
 
-#ifndef uuid_generate_time_safe
-void *x = uuid_generate_time_safe
-#endif
 
-  ;
+if test $pkg_failed = yes; then
-  return 0;
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-}
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi
+        if test $_pkg_short_errors_supported = yes; then
+	        LIBUUID_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "uuid >= 2.20" 2>&1`
+        else
+	        LIBUUID_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "uuid >= 2.20" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$LIBUUID_PKG_ERRORS" >&5
+
+
+      LIBUUID_LIBS="-luuid"
+      LIBUUID_CFLAGS=
+      have_uuid=no
+      for ac_header in uuid/uuid.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "uuid/uuid.h" "ac_cv_header_uuid_uuid_h" "$ac_includes_default"
+if test "x$ac_cv_header_uuid_uuid_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_UUID_UUID_H 1
 _ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_cv_lib_uuid_uuid_generate_time_safe=yes
-else
-  ac_cv_lib_uuid_uuid_generate_time_safe=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
-fi
+        save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate_time_safe" >&5
+save_CPPFLAGS=$CPPFLAGS
-$as_echo "$ac_cv_lib_uuid_uuid_generate_time_safe" >&6; }
+save_LDFLAGS=$LDFLAGS
-if test "x$ac_cv_lib_uuid_uuid_generate_time_safe" = xyes; then :
-
-
-$as_echo "#define HAVE_UUID_GENERATE_TIME_SAFE 1" >>confdefs.h
-
-
-fi
-
-# check for libuuid from util-linux
 save_LIBS=$LIBS
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate_time in -luuid" >&5
 $as_echo_n "checking for uuid_generate_time in -luuid... " >&6; }
 if ${ac_cv_lib_uuid_uuid_generate_time+:} false; then :
@@ -10464,33 +10533,227 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate_time" >&5
 $as_echo "$ac_cv_lib_uuid_uuid_generate_time" >&6; }
 if test "x$ac_cv_lib_uuid_uuid_generate_time" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
+  have_uuid=yes
-#define HAVE_LIBUUID 1
-_ACEOF
-
-  LIBS="-luuid $LIBS"
-
 fi
 
+
+CFLAGS=$save_CFLAGS
+CPPFLAGS=$save_CPPFLAGS
+LDFLAGS=$save_LDFLAGS
 LIBS=$save_LIBS
 
-# AIX provides support for RFC4122 (uuid) in libc.a starting with AIX 6.1 (anno 2007)
+
-# FreeBSD and OpenBSD provides support in libc as well.
+        save_CFLAGS=$CFLAGS
-# Little-endian FreeBSD, OpenBSD and NetBSD needs encoding into an octet
+save_CPPFLAGS=$CPPFLAGS
-# stream in big-endian byte-order
+save_LDFLAGS=$LDFLAGS
-for ac_func in uuid_create uuid_enc_be
+save_LIBS=$LIBS
-do :
+
-  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+
-ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate_time_safe in -luuid" >&5
-if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+$as_echo_n "checking for uuid_generate_time_safe in -luuid... " >&6; }
-  cat >>confdefs.h <<_ACEOF
+if ${ac_cv_lib_uuid_uuid_generate_time_safe+:} false; then :
-#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-luuid  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char uuid_generate_time_safe ();
+int
+main ()
+{
+return uuid_generate_time_safe ();
+  ;
+  return 0;
+}
 _ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_uuid_uuid_generate_time_safe=yes
+else
+  ac_cv_lib_uuid_uuid_generate_time_safe=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate_time_safe" >&5
+$as_echo "$ac_cv_lib_uuid_uuid_generate_time_safe" >&6; }
+if test "x$ac_cv_lib_uuid_uuid_generate_time_safe" = xyes; then :
+
+            have_uuid=yes
+            $as_echo "#define HAVE_UUID_GENERATE_TIME_SAFE 1" >>confdefs.h
+
 
 fi
+
+
+CFLAGS=$save_CFLAGS
+CPPFLAGS=$save_CPPFLAGS
+LDFLAGS=$save_LDFLAGS
+LIBS=$save_LIBS
+
+
+
+fi
+
 done
 
 
+
+elif test $pkg_failed = untried; then
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+      LIBUUID_LIBS="-luuid"
+      LIBUUID_CFLAGS=
+      have_uuid=no
+      for ac_header in uuid/uuid.h
+do :
+  ac_fn_c_check_header_mongrel "$LINENO" "uuid/uuid.h" "ac_cv_header_uuid_uuid_h" "$ac_includes_default"
+if test "x$ac_cv_header_uuid_uuid_h" = xyes; then :
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_UUID_UUID_H 1
+_ACEOF
+
+        save_CFLAGS=$CFLAGS
+save_CPPFLAGS=$CPPFLAGS
+save_LDFLAGS=$LDFLAGS
+save_LIBS=$LIBS
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate_time in -luuid" >&5
+$as_echo_n "checking for uuid_generate_time in -luuid... " >&6; }
+if ${ac_cv_lib_uuid_uuid_generate_time+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-luuid  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char uuid_generate_time ();
+int
+main ()
+{
+return uuid_generate_time ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_uuid_uuid_generate_time=yes
+else
+  ac_cv_lib_uuid_uuid_generate_time=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate_time" >&5
+$as_echo "$ac_cv_lib_uuid_uuid_generate_time" >&6; }
+if test "x$ac_cv_lib_uuid_uuid_generate_time" = xyes; then :
+  have_uuid=yes
+fi
+
+
+CFLAGS=$save_CFLAGS
+CPPFLAGS=$save_CPPFLAGS
+LDFLAGS=$save_LDFLAGS
+LIBS=$save_LIBS
+
+
+        save_CFLAGS=$CFLAGS
+save_CPPFLAGS=$CPPFLAGS
+save_LDFLAGS=$LDFLAGS
+save_LIBS=$LIBS
+
+
+          { $as_echo "$as_me:${as_lineno-$LINENO}: checking for uuid_generate_time_safe in -luuid" >&5
+$as_echo_n "checking for uuid_generate_time_safe in -luuid... " >&6; }
+if ${ac_cv_lib_uuid_uuid_generate_time_safe+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-luuid  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char uuid_generate_time_safe ();
+int
+main ()
+{
+return uuid_generate_time_safe ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_uuid_uuid_generate_time_safe=yes
+else
+  ac_cv_lib_uuid_uuid_generate_time_safe=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_uuid_uuid_generate_time_safe" >&5
+$as_echo "$ac_cv_lib_uuid_uuid_generate_time_safe" >&6; }
+if test "x$ac_cv_lib_uuid_uuid_generate_time_safe" = xyes; then :
+
+            have_uuid=yes
+            $as_echo "#define HAVE_UUID_GENERATE_TIME_SAFE 1" >>confdefs.h
+
+
+fi
+
+
+CFLAGS=$save_CFLAGS
+CPPFLAGS=$save_CPPFLAGS
+LDFLAGS=$save_LDFLAGS
+LIBS=$save_LIBS
+
+
+
+fi
+
+done
+
+
+
+else
+	LIBUUID_CFLAGS=$pkg_cv_LIBUUID_CFLAGS
+	LIBUUID_LIBS=$pkg_cv_LIBUUID_LIBS
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+                  have_uuid=yes
+      $as_echo "#define HAVE_UUID_H 1" >>confdefs.h
+
+      $as_echo "#define HAVE_UUID_GENERATE_TIME_SAFE 1" >>confdefs.h
+
+
+fi
+
+fi
+
 # 'Real Time' functions on Solaris
 # posix4 on Solaris 2.6
 # pthread (first!) on Linux
@@ -21905,6 +22168,42 @@ fi
 $as_echo "$py_cv_module__sqlite3" >&6; }
 
 
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdlib extension module _uuid" >&5
+$as_echo_n "checking for stdlib extension module _uuid... " >&6; }
+      case $py_stdlib_not_available in #(
+  *_uuid*) :
+    py_cv_module__uuid=n/a ;; #(
+  *) :
+    if true; then :
+  if test "$have_uuid" = "yes"; then :
+  py_cv_module__uuid=yes
+else
+  py_cv_module__uuid=missing
+fi
+else
+  py_cv_module__uuid=disabled
+fi
+   ;;
+esac
+  as_fn_append MODULE_BLOCK "MODULE__UUID=$py_cv_module__uuid$as_nl"
+  if test "x$py_cv_module__uuid" = xyes; then :
+
+    as_fn_append MODULE_BLOCK "MODULE__UUID_CFLAGS=$LIBUUID_CFLAGS$as_nl"
+    as_fn_append MODULE_BLOCK "MODULE__UUID_LDFLAGS=$LIBUUID_LIBS$as_nl"
+
+fi
+   if test "$py_cv_module__uuid" = yes; then
+  MODULE__UUID_TRUE=
+  MODULE__UUID_FALSE='#'
+else
+  MODULE__UUID_TRUE='#'
+  MODULE__UUID_FALSE=
+fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $py_cv_module__uuid" >&5
+$as_echo "$py_cv_module__uuid" >&6; }
+
+
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for stdlib extension module zlib" >&5
 $as_echo_n "checking for stdlib extension module zlib... " >&6; }
@@ -22774,6 +23073,10 @@ if test -z "${MODULE__SQLITE3_TRUE}" && test -z "${MODULE__SQLITE3_FALSE}"; then
   as_fn_error $? "conditional \"MODULE__SQLITE3\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${MODULE__UUID_TRUE}" && test -z "${MODULE__UUID_FALSE}"; then
+  as_fn_error $? "conditional \"MODULE__UUID\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${MODULE_ZLIB_TRUE}" && test -z "${MODULE_ZLIB_FALSE}"; then
   as_fn_error $? "conditional \"MODULE_ZLIB\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5

configure.ac

@@ -2871,31 +2871,51 @@ AC_CHECK_LIB(sendfile, sendfile)
 AC_CHECK_LIB(dl, dlopen)	# Dynamic linking for SunOS/Solaris and SYSV
 AC_CHECK_LIB(dld, shl_load)	# Dynamic linking for HP-UX
 
-# checks for uuid.h location
-AC_CHECK_HEADERS([uuid/uuid.h uuid.h])
 
-AC_CACHE_CHECK([for uuid_generate_time_safe], [ac_cv_lib_uuid_uuid_generate_time_safe], [
+dnl check for uuid dependencies
-AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <uuid/uuid.h>]], [[
+AH_TEMPLATE([HAVE_UUID_H], [Define to 1 if you have the <uuid.h> header file.])
-#ifndef uuid_generate_time_safe
+AH_TEMPLATE([HAVE_UUID_UUID_H], [Define to 1 if you have the <uuid/uuid.h> header file.])
-void *x = uuid_generate_time_safe
+AH_TEMPLATE([HAVE_UUID_GENERATE_TIME_SAFE], [Define if uuid_generate_time_safe() exists.])
-#endif
+have_uuid=missing
-]])],
+
-[ac_cv_lib_uuid_uuid_generate_time_safe=yes], [ac_cv_lib_uuid_uuid_generate_time_safe=no])
+dnl AIX provides support for RFC4122 (uuid) in libc.a starting with AIX 6.1
-])
+dnl (anno 2007). FreeBSD and OpenBSD provides support in libc as well.
-AS_VAR_IF([ac_cv_lib_uuid_uuid_generate_time_safe], [yes], [
+dnl Little-endian FreeBSD, OpenBSD and NetBSD needs encoding into an octet
-  AC_DEFINE(HAVE_UUID_GENERATE_TIME_SAFE, 1, [Define if uuid_generate_time_safe() exists.])
+dnl stream in big-endian byte-order
+AC_CHECK_HEADERS([uuid.h], [
+  AC_CHECK_FUNCS([uuid_create uuid_enc_be], [
+    have_uuid=yes
+    LIBUUID_CFLAGS=
+    LIBUUID_LIBS=
+  ])
 ])
 
-# check for libuuid from util-linux
+AS_VAR_IF([have_uuid], [missing], [
-save_LIBS=$LIBS
+  PKG_CHECK_MODULES(
-AC_CHECK_LIB([uuid], [uuid_generate_time])
+    [LIBUUID], [uuid >= 2.20], [
-LIBS=$save_LIBS
+      dnl linux-util's libuuid has uuid_generate_time_safe() since v2.20 (2011)
-
+      dnl and provides <uuid.h>.
-# AIX provides support for RFC4122 (uuid) in libc.a starting with AIX 6.1 (anno 2007)
+      have_uuid=yes
-# FreeBSD and OpenBSD provides support in libc as well.
+      AC_DEFINE([HAVE_UUID_H], [1])
-# Little-endian FreeBSD, OpenBSD and NetBSD needs encoding into an octet
+      AC_DEFINE([HAVE_UUID_GENERATE_TIME_SAFE], [1])
-# stream in big-endian byte-order
+    ], [
-AC_CHECK_FUNCS([uuid_create uuid_enc_be])
+      LIBUUID_LIBS="-luuid"
+      LIBUUID_CFLAGS=
+      have_uuid=no
+      AC_CHECK_HEADERS([uuid/uuid.h], [
+        WITH_SAVE_ENV(
+          [AC_CHECK_LIB([uuid], [uuid_generate_time], [have_uuid=yes])
+        ])
+        WITH_SAVE_ENV([
+          AC_CHECK_LIB([uuid], [uuid_generate_time_safe], [
+            have_uuid=yes
+            AC_DEFINE([HAVE_UUID_GENERATE_TIME_SAFE], [1])
+          ])
+        ])
+      ])
+    ]
+  )
+])
 
 # 'Real Time' functions on Solaris
 # posix4 on Solaris 2.6
@@ -6299,6 +6319,9 @@ PY_STDLIB_MOD([_sqlite3],
   [test "$have_sqlite3" = "yes"],
   [test "$have_supported_sqlite3" = "yes"],
   [$LIBSQLITE3_CFLAGS], [$LIBSQLITE3_LIBS])
+PY_STDLIB_MOD([_uuid],
+  [], [test "$have_uuid" = "yes"],
+  [$LIBUUID_CFLAGS], [$LIBUUID_LIBS])
 
 dnl compression libs
 PY_STDLIB_MOD([zlib], [], [test "$have_zlib" = yes],

pyconfig.h.in

@@ -628,9 +628,6 @@
 /* Define to 1 if you have the <libutil.h> header file. */
 #undef HAVE_LIBUTIL_H
 
-/* Define to 1 if you have the `uuid' library (-luuid). */
-#undef HAVE_LIBUUID
-
 /* Define if you have the 'link' function. */
 #undef HAVE_LINK
 

setup.py

@@ -1401,17 +1401,7 @@ class PyBuildExt(build_ext):
 
     def detect_uuid(self):
         # Build the _uuid module if possible
-        uuid_h = sysconfig.get_config_var("HAVE_UUID_H")
+        self.addext(Extension('_uuid', ['_uuidmodule.c']))
-        uuid_uuid_h = sysconfig.get_config_var("HAVE_UUID_UUID_H")
-        if uuid_h or uuid_uuid_h:
-            if sysconfig.get_config_var("HAVE_LIBUUID"):
-                uuid_libs = ["uuid"]
-            else:
-                uuid_libs = []
-            self.add(Extension('_uuid', ['_uuidmodule.c'],
-                               libraries=uuid_libs))
-        else:
-            self.missing.append('_uuid')
 
     def detect_modules(self):
         # remove dummy extension