From a620fbe9ace71a89bd3d0c57a045b93a772070d5 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 3 Jun 2021 13:04:47 +0200
Subject: [PATCH] configure: convert compiler tests to meson, part 5
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Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 configure   | 101 ----------------------------------------------------
 meson.build |  26 ++++++++++++++
 2 files changed, 26 insertions(+), 101 deletions(-)

diff --git a/configure b/configure
index 83168ceb52..1cac47399d 100755
--- a/configure
+++ b/configure
@@ -3395,92 +3395,6 @@ EOF
   fi
 fi
 
-# Check for inotify functions when we are building linux-user
-# emulator.  This is done because older glibc versions don't
-# have syscall stubs for these implemented.  In that case we
-# don't provide them even if kernel supports them.
-#
-inotify=no
-cat > $TMPC << EOF
-#include <sys/inotify.h>
-
-int
-main(void)
-{
-	/* try to start inotify */
-	return inotify_init();
-}
-EOF
-if compile_prog "" "" ; then
-  inotify=yes
-fi
-
-inotify1=no
-cat > $TMPC << EOF
-#include <sys/inotify.h>
-
-int
-main(void)
-{
-    /* try to start inotify */
-    return inotify_init1(0);
-}
-EOF
-if compile_prog "" "" ; then
-  inotify1=yes
-fi
-
-# check if pipe2 is there
-pipe2=no
-cat > $TMPC << EOF
-#include <unistd.h>
-#include <fcntl.h>
-
-int main(void)
-{
-    int pipefd[2];
-    return pipe2(pipefd, O_CLOEXEC);
-}
-EOF
-if compile_prog "" "" ; then
-  pipe2=yes
-fi
-
-# check if accept4 is there
-accept4=no
-cat > $TMPC << EOF
-#include <sys/socket.h>
-#include <stddef.h>
-
-int main(void)
-{
-    accept4(0, NULL, NULL, SOCK_CLOEXEC);
-    return 0;
-}
-EOF
-if compile_prog "" "" ; then
-  accept4=yes
-fi
-
-# check if tee/splice is there. vmsplice was added same time.
-splice=no
-cat > $TMPC << EOF
-#include <unistd.h>
-#include <fcntl.h>
-#include <limits.h>
-
-int main(void)
-{
-    int len, fd = 0;
-    len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
-    splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
-    return 0;
-}
-EOF
-if compile_prog "" "" ; then
-  splice=yes
-fi
-
 ##########################################
 # libnuma probe
 
@@ -4720,24 +4634,9 @@ fi
 if test "$module_upgrades" = "yes"; then
   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
 fi
-if test "$pipe2" = "yes" ; then
-  echo "CONFIG_PIPE2=y" >> $config_host_mak
-fi
-if test "$accept4" = "yes" ; then
-  echo "CONFIG_ACCEPT4=y" >> $config_host_mak
-fi
-if test "$splice" = "yes" ; then
-  echo "CONFIG_SPLICE=y" >> $config_host_mak
-fi
 if test "$have_usbfs" = "yes" ; then
   echo "CONFIG_USBFS=y" >> $config_host_mak
 fi
-if test "$inotify" = "yes" ; then
-  echo "CONFIG_INOTIFY=y" >> $config_host_mak
-fi
-if test "$inotify1" = "yes" ; then
-  echo "CONFIG_INOTIFY1=y" >> $config_host_mak
-fi
 if test "$gio" = "yes" ; then
     echo "CONFIG_GIO=y" >> $config_host_mak
     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
diff --git a/meson.build b/meson.build
index cb50a2e473..12162264db 100644
--- a/meson.build
+++ b/meson.build
@@ -1268,6 +1268,7 @@ config_host_data.set('HAVE_SYS_IOCCOM_H', cc.has_header('sys/ioccom.h'))
 config_host_data.set('HAVE_SYS_KCOV_H', cc.has_header('sys/kcov.h'))
 
 # has_function
+config_host_data.set('CONFIG_ACCEPT4', cc.has_function('accept4'))
 config_host_data.set('CONFIG_CLOCK_ADJTIME', cc.has_function('clock_adjtime'))
 config_host_data.set('CONFIG_DUP3', cc.has_function('dup3'))
 config_host_data.set('CONFIG_FALLOCATE', cc.has_function('fallocate'))
@@ -1302,6 +1303,10 @@ config_host_data.set('CONFIG_FIEMAP',
 config_host_data.set('CONFIG_GETRANDOM',
                      cc.has_function('getrandom') and
                      cc.has_header_symbol('sys/random.h', 'GRND_NONBLOCK'))
+config_host_data.set('CONFIG_INOTIFY',
+                     cc.has_header_symbol('sys/inotify.h', 'inotify_init'))
+config_host_data.set('CONFIG_INOTIFY1',
+                     cc.has_header_symbol('sys/inotify.h', 'inotify_init1'))
 config_host_data.set('CONFIG_MACHINE_BSWAP_H',
                      cc.has_header_symbol('machine/bswap.h', 'bswap32',
                                           prefix: '''#include <sys/endian.h>
@@ -1345,6 +1350,15 @@ config_host_data.set('CONFIG_MADVISE', cc.compiles(gnu_source_prefix + '''
 config_host_data.set('CONFIG_MEMFD', cc.compiles(gnu_source_prefix + '''
   #include <sys/mman.h>
   int main(void) { return memfd_create("foo", MFD_ALLOW_SEALING); }'''))
+config_host_data.set('CONFIG_PIPE2', cc.compiles(gnu_source_prefix + '''
+  #include <unistd.h>
+  #include <fcntl.h>
+
+  int main(void)
+  {
+      int pipefd[2];
+      return pipe2(pipefd, O_CLOEXEC);
+  }'''))
 config_host_data.set('CONFIG_POSIX_MADVISE', cc.compiles(gnu_source_prefix + '''
   #include <sys/mman.h>
   #include <stddef.h>
@@ -1354,6 +1368,18 @@ config_host_data.set('CONFIG_SIGNALFD', cc.compiles(gnu_source_prefix + '''
   #include <sys/syscall.h>
   #include <signal.h>
   int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }'''))
+config_host_data.set('CONFIG_SPLICE', cc.compiles(gnu_source_prefix + '''
+  #include <unistd.h>
+  #include <fcntl.h>
+  #include <limits.h>
+
+  int main(void)
+  {
+    int len, fd = 0;
+    len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
+    splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
+    return 0;
+  }'''))
 
 # Some versions of Mac OS X incorrectly define SIZE_MAX
 config_host_data.set('HAVE_BROKEN_SIZE_MAX', not cc.compiles('''