Changeset 5751a56 for libcfa/configure

Timestamp:

Jul 23, 2020, 1:33:29 PM (4 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

54eb5ebd

Parents:

d9c2284

Message:

Changed handling of io_uring support to handle op codes in configure.
Kernel probing for op codes, not supported yet.

File:

• libcfa/configure (modified) (23 diffs)

libcfa/configure

@@ -677 +677 @@
 AMDEP_FALSE
 AMDEP_TRUE
-am__quote
 am__include
 DEPDIR
@@ -784 +783 @@
 PACKAGE_NAME
 PATH_SEPARATOR
-SHELL'
+SHELL
+am__quote'
 ac_subst_files=''
 ac_user_opts='
@@ -2054 +2054 @@
 
 } # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+               { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
@@ -2486 +2532 @@
 
 
-am__api_version='1.15'
+am__api_version='1.16'
 
 # Find a good install program.  We prefer a C program (faster),
@@ -2963 +3009 @@
 # For better backward compatibility.  To be removed once Automake 1.9.x
 # dies out for good.  For more background, see:
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
-# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 mkdir_p='$(MKDIR_P)'
 
@@ -3015 +3061 @@
 
 You can download and install GNU coreutils to get an 'rm' implementation
-that behaves properly: <http://www.gnu.org/software/coreutils/>.
+that behaves properly: <https://www.gnu.org/software/coreutils/>.
 
 If you want to complete the configuration process using your problematic
@@ -3399 +3445 @@
 ac_config_commands="$ac_config_commands depfiles"
 
-
-am_make=${MAKE-make}
-cat > confinc << 'END'
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} supports the include directive" >&5
+$as_echo_n "checking whether ${MAKE-make} supports the include directive... " >&6; }
+cat > confinc.mk << 'END'
 am__doit:
-        @echo this is the am__doit target
+        @echo this is the am__doit target >confinc.out
 .PHONY: am__doit
 END
-# If we don't find an include directive, just comment out the code.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
-$as_echo_n "checking for style of include used by $am_make... " >&6; }
 am__include="#"
 am__quote=
-_am_result=none
-# First try GNU make style include.
-echo "include confinc" > confmf
-# Ignore all kinds of additional output from 'make'.
-case `$am_make -s -f confmf 2> /dev/null` in #(
-*the\ am__doit\ target*)
-  am__include=include
-  am__quote=
-  _am_result=GNU
-  ;;
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+  { echo "$as_me:$LINENO: ${MAKE-make} -f confmf.$s && cat confinc.out" >&5
+   (${MAKE-make} -f confmf.$s && cat confinc.out) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); }
+  case $?:`cat confinc.out 2>/dev/null` in #(
+  '0:this is the am__doit target') :
+    case $s in #(
+  BSD) :
+    am__include='.include' am__quote='"' ;; #(
+  *) :
+    am__include='include' am__quote='' ;;
+esac ;; #(
+  *) :
+     ;;
 esac
-# Now try BSD make style include.
-if test "$am__include" = "#"; then
-   echo '.include "confinc"' > confmf
-   case `$am_make -s -f confmf 2> /dev/null` in #(
-   *the\ am__doit\ target*)
-     am__include=.include
-     am__quote="\""
-     _am_result=BSD
-     ;;
-   esac
-fi
-
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
-$as_echo "$_am_result" >&6; }
-rm -f confinc confmf
+  if test "$am__include" != "#"; then
+    _am_result="yes ($s style)"
+    break
+  fi
+done
+rm -f confinc.* confmf.*
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${_am_result}" >&5
+$as_echo "${_am_result}" >&6; }
 
 # Check whether --enable-dependency-tracking was given.
@@ -5941 +5987 @@
 
 : ${AR=ar}
-: ${AR_FLAGS=cru}
+: ${AR_FLAGS=cr}
 
 
@@ -6442 +6488 @@
     # Now try to grab the symbols.
     nlist=conftest.nm
-    if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
-  (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && test -s "$nlist"; then
+    $ECHO "$as_me:$LINENO: $NM conftest.$ac_objext | $lt_cv_sys_global_symbol_pipe > $nlist" >&5
+    if eval "$NM" conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist 2>&5 && test -s "$nlist"; then
       # Try sorting and uniquifying the output.
       if sort "$nlist" | uniq > "$nlist"T; then
@@ -7665 +7708 @@
       echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
       $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
-      echo "$AR cru libconftest.a conftest.o" >&5
-      $AR cru libconftest.a conftest.o 2>&5
+      echo "$AR cr libconftest.a conftest.o" >&5
+      $AR cr libconftest.a conftest.o 2>&5
       echo "$RANLIB libconftest.a" >&5
       $RANLIB libconftest.a 2>&5
@@ -8792 +8835 @@
         lt_prog_compiler_wl='-Wl,'
         lt_prog_compiler_pic='-KPIC'
+        lt_prog_compiler_static='-static'
+        ;;
+      # flang / f18. f95 an alias for gfortran or flang on Debian
+      flang* | f18* | f95*)
+        lt_prog_compiler_wl='-Wl,'
+        lt_prog_compiler_pic='-fPIC'
         lt_prog_compiler_static='-static'
         ;;
@@ -13154 +13203 @@
       # what "hidden" libraries, object files and flags are used when
       # linking a shared library.
-      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
 
     else
@@ -13646 +13695 @@
             # from the output so that they don't get included in the library
             # dependencies.
-            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
             ;;
           *)
@@ -13711 +13760 @@
             # from the output so that they don't get included in the library
             # dependencies.
-            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+            output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP " \-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
             ;;
           *)
@@ -14050 +14099 @@
               # what "hidden" libraries, object files and flags are used when
               # linking a shared library.
-              output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+              output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
 
             else
@@ -14134 +14183 @@
                 # what "hidden" libraries, object files and flags are used when
                 # linking a shared library.
-                output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+                output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
               else
                 # g++ 2.7 appears to require '-G' NOT '-shared' on this
@@ -14145 +14194 @@
                 # what "hidden" libraries, object files and flags are used when
                 # linking a shared library.
-                output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+                output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP " \-L"'
               fi
 
@@ -16962 +17011 @@
 
 
+
+
+#io_uring 5.4 and earlier uses defines
+#io_uring 5.5 uses enum values
+#io_uring 5.6 and later uses probes
+
 for ac_header in linux/io_uring.h
 do :
@@ -16969 +17024 @@
 #define HAVE_LINUX_IO_URING_H 1
 _ACEOF
+
+        $as_echo "#define CFA_HAVE_LINUX_IO_URING_H 1" >>confdefs.h
+
+        # AC_CHECK_HEADER([liburing.h], [
+        #       AC_CHECK_LIB([uring], [io_uring_get_probe])
+        # ])
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_NOP" "ac_cv_have_decl_IORING_OP_NOP" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_NOP" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_NOP 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_READV" "ac_cv_have_decl_IORING_OP_READV" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_READV" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_READV 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_WRITEV" "ac_cv_have_decl_IORING_OP_WRITEV" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_WRITEV" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_WRITEV 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_FSYNC" "ac_cv_have_decl_IORING_OP_FSYNC" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_FSYNC" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_FSYNC 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_READ_FIXED" "ac_cv_have_decl_IORING_OP_READ_FIXED" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_READ_FIXED" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_READ_FIXED 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_WRITE_FIXED" "ac_cv_have_decl_IORING_OP_WRITE_FIXED" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_WRITE_FIXED" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_WRITE_FIXED 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_POLL_ADD" "ac_cv_have_decl_IORING_OP_POLL_ADD" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_POLL_ADD" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_POLL_ADD 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_POLL_REMOVE" "ac_cv_have_decl_IORING_OP_POLL_REMOVE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_POLL_REMOVE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_POLL_REMOVE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_SYNC_FILE_RANGE" "ac_cv_have_decl_IORING_OP_SYNC_FILE_RANGE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_SYNC_FILE_RANGE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_SYNC_FILE_RANGE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_SENDMSG" "ac_cv_have_decl_IORING_OP_SENDMSG" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_SENDMSG" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_SENDMSG 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_RECVMSG" "ac_cv_have_decl_IORING_OP_RECVMSG" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_RECVMSG" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_RECVMSG 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_TIMEOUT" "ac_cv_have_decl_IORING_OP_TIMEOUT" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_TIMEOUT" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_TIMEOUT 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_TIMEOUT_REMOVE" "ac_cv_have_decl_IORING_OP_TIMEOUT_REMOVE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_TIMEOUT_REMOVE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_TIMEOUT_REMOVE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_ACCEPT" "ac_cv_have_decl_IORING_OP_ACCEPT" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_ACCEPT" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_ACCEPT 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_ASYNC_CANCEL" "ac_cv_have_decl_IORING_OP_ASYNC_CANCEL" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_ASYNC_CANCEL" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_ASYNC_CANCEL 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_LINK_TIMEOUT" "ac_cv_have_decl_IORING_OP_LINK_TIMEOUT" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_LINK_TIMEOUT" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_LINK_TIMEOUT 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_CONNECT" "ac_cv_have_decl_IORING_OP_CONNECT" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_CONNECT" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_CONNECT 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_FALLOCATE" "ac_cv_have_decl_IORING_OP_FALLOCATE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_FALLOCATE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_FALLOCATE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_OPENAT" "ac_cv_have_decl_IORING_OP_OPENAT" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_OPENAT" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_OPENAT 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_CLOSE" "ac_cv_have_decl_IORING_OP_CLOSE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_CLOSE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_CLOSE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_FILES_UPDATE" "ac_cv_have_decl_IORING_OP_FILES_UPDATE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_FILES_UPDATE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_FILES_UPDATE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_STATX" "ac_cv_have_decl_IORING_OP_STATX" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_STATX" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_STATX 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_READ" "ac_cv_have_decl_IORING_OP_READ" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_READ" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_READ 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_WRITE" "ac_cv_have_decl_IORING_OP_WRITE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_WRITE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_WRITE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_FADVISE" "ac_cv_have_decl_IORING_OP_FADVISE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_FADVISE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_FADVISE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_MADVISE" "ac_cv_have_decl_IORING_OP_MADVISE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_MADVISE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_MADVISE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_SEND" "ac_cv_have_decl_IORING_OP_SEND" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_SEND" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_SEND 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_RECV" "ac_cv_have_decl_IORING_OP_RECV" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_RECV" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_RECV 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_OPENAT2" "ac_cv_have_decl_IORING_OP_OPENAT2" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_OPENAT2" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_OPENAT2 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_EPOLL_CTL" "ac_cv_have_decl_IORING_OP_EPOLL_CTL" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_EPOLL_CTL" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_EPOLL_CTL 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_SPLICE" "ac_cv_have_decl_IORING_OP_SPLICE" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_SPLICE" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_SPLICE 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_PROVIDE_BUFFERS" "ac_cv_have_decl_IORING_OP_PROVIDE_BUFFERS" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_PROVIDE_BUFFERS" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_PROVIDE_BUFFERS 1" >>confdefs.h
+
+fi
+
+
+                ac_fn_c_check_decl "$LINENO" "IORING_OP_REMOVE_BUFFER" "ac_cv_have_decl_IORING_OP_REMOVE_BUFFER" "#include <linux/io_uring.h>
+"
+if test "x$ac_cv_have_decl_IORING_OP_REMOVE_BUFFER" = xyes; then :
+  $as_echo "#define CFA_HAVE_IORING_OP_REMOVE_BUFFER 1" >>confdefs.h
+
+fi
+
+
 
 fi
@@ -17728 +18054 @@
 # INIT-COMMANDS
 #
-AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
 
 
@@ -18724 +19050 @@
   # are listed without --file.  Let's play safe and only enable the eval
   # if we detect the quoting.
-  case $CONFIG_FILES in
-  *\'*) eval set x "$CONFIG_FILES" ;;
-  *)   set x $CONFIG_FILES ;;
-  esac
+  # TODO: see whether this extra hack can be removed once we start
+  # requiring Autoconf 2.70 or later.
+  case $CONFIG_FILES in #(
+  *\'*) :
+    eval set x "$CONFIG_FILES" ;; #(
+  *) :
+    set x $CONFIG_FILES ;; #(
+  *) :
+     ;;
+esac
   shift
-  for mf
+  # Used to flag and report bootstrapping failures.
+  am_rc=0
+  for am_mf
   do
     # Strip MF so we end up with the name of the file.
-    mf=`echo "$mf" | sed -e 's/:.*$//'`
-    # Check whether this is an Automake generated Makefile or not.
-    # We used to match only the files named 'Makefile.in', but
-    # some people rename them; so instead we look at the file content.
-    # Grep'ing the first line is not enough: some people post-process
-    # each Makefile.in and add a new line on top of each file to say so.
-    # Grep'ing the whole file is not good either: AIX grep has a line
+    am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile which includes
+    # dependency-tracking related rules and includes.
+    # Grep'ing the whole file directly is not great: AIX grep has a line
     # limit of 2048, but all sed's we know have understand at least 4000.
-    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
-      dirpart=`$as_dirname -- "$mf" ||
-$as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-         X"$mf" : 'X\(//\)[^/]' \| \
-         X"$mf" : 'X\(//\)$' \| \
-         X"$mf" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$mf" |
+    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+      || continue
+    am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+         X"$am_mf" : 'X\(//\)[^/]' \| \
+         X"$am_mf" : 'X\(//\)$' \| \
+         X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
             s//\1/
@@ -18764 +19096 @@
           }
           s/.*/./; q'`
-    else
-      continue
-    fi
-    # Extract the definition of DEPDIR, am__include, and am__quote
-    # from the Makefile without running 'make'.
-    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-    test -z "$DEPDIR" && continue
-    am__include=`sed -n 's/^am__include = //p' < "$mf"`
-    test -z "$am__include" && continue
-    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-    # Find all dependency output files, they are included files with
-    # $(DEPDIR) in their names.  We invoke sed twice because it is the
-    # simplest approach to changing $(DEPDIR) to its actual value in the
-    # expansion.
-    for file in `sed -n "
-      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-         sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
-      # Make sure the directory exists.
-      test -f "$dirpart/$file" && continue
-      fdir=`$as_dirname -- "$file" ||
-$as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-         X"$file" : 'X\(//\)[^/]' \| \
-         X"$file" : 'X\(//\)$' \| \
-         X"$file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$file" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+    am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+         X"$am_mf" : 'X\(//\)$' \| \
+         X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
             s//\1/
             q
           }
-          /^X\(\/\/\)[^/].*/{
+          /^X\/\(\/\/\)$/{
             s//\1/
             q
           }
-          /^X\(\/\/\)$/{
-            s//\1/
-            q
-          }
-          /^X\(\/\).*/{
+          /^X\/\(\/\).*/{
             s//\1/
             q
           }
           s/.*/./; q'`
-      as_dir=$dirpart/$fdir; as_fn_mkdir_p
-      # echo "creating $dirpart/$file"
-      echo '# dummy' > "$dirpart/$file"
-    done
+    { echo "$as_me:$LINENO: cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles" >&5
+   (cd "$am_dirpart" \
+      && sed -e '/# am--include-marker/d' "$am_filepart" \
+        | $MAKE -f - am--depfiles) >&5 2>&5
+   ac_status=$?
+   echo "$as_me:$LINENO: \$? = $ac_status" >&5
+   (exit $ac_status); } || am_rc=$?
   done
+  if test $am_rc -ne 0; then
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+    for automatic dependency tracking.  Try re-running configure with the
+    '--disable-dependency-tracking' option to at least be able to build
+    the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+  { am_dirpart=; unset am_dirpart;}
+  { am_filepart=; unset am_filepart;}
+  { am_mf=; unset am_mf;}
+  { am_rc=; unset am_rc;}
+  rm -f conftest-deps.mk
 }
  ;;
@@ -18828 +19155 @@
 #! $SHELL
 # Generated automatically by $as_me ($PACKAGE) $VERSION
-# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
 # NOTE: Changes made to this file will be lost: look at ltmain.sh.