build-sys: use #if Y instead of #ifdef Y everywhere

The advantage is that is the name is mispellt, cpp will warn us.

$ git grep -Ee "conf.set\('(HAVE|ENABLE)_" -l|xargs sed -r -i "s/conf.set\('(HAVE|ENABLE)_/conf.set10('\1_/"
$ git grep -Ee '#ifn?def (HAVE|ENABLE)' -l|xargs sed -r -i 's/#ifdef (HAVE|ENABLE)/#if \1/; s/#ifndef (HAVE|ENABLE)/#if ! \1/;'
$ git grep -Ee 'if.*defined\(HAVE' -l|xargs sed -i -r 's/defined\((HAVE_[A-Z0-9_]*)\)/\1/g'
$ git grep -Ee 'if.*defined\(ENABLE' -l|xargs sed -i -r 's/defined\((ENABLE_[A-Z0-9_]*)\)/\1/g'
+ manual changes to meson.build

squash! build-sys: use #if Y instead of #ifdef Y everywhere

v2:
- fix incorrect setting of HAVE_LIBIDN2

4 files changed, 12 insertions, 12 deletions

diff --git a/src/nspawn/nspawn-mount.c b/src/nspawn/nspawn-mount.c
index e80c944e9f..531f29cb7b 100644
--- a/src/nspawn/nspawn-mount.c
+++ b/src/nspawn/nspawn-mount.c
@@ -374,7 +374,7 @@ static int tmpfs_patch_options(
                 options = buf;
         }
 
-#ifdef HAVE_SELINUX
+#if HAVE_SELINUX
         if (selinux_apifs_context) {
                 char *t;
 
@@ -557,7 +557,7 @@ int mount_all(const char *dest,
                 { "tmpfs",               "/dev",                "tmpfs", "mode=755",  MS_NOSUID|MS_STRICTATIME,                                  MOUNT_FATAL },
                 { "tmpfs",               "/dev/shm",            "tmpfs", "mode=1777", MS_NOSUID|MS_NODEV|MS_STRICTATIME,                         MOUNT_FATAL },
                 { "tmpfs",               "/run",                "tmpfs", "mode=755",  MS_NOSUID|MS_NODEV|MS_STRICTATIME,                         MOUNT_FATAL },
-#ifdef HAVE_SELINUX
+#if HAVE_SELINUX
                 { "/sys/fs/selinux",     "/sys/fs/selinux",     NULL,     NULL,       MS_BIND,                                                   0 },  /* Bind mount first */
                 { NULL,                  "/sys/fs/selinux",     NULL,     NULL,       MS_BIND|MS_RDONLY|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_REMOUNT, 0 },  /* Then, make it r/o */
 #endif
diff --git a/src/nspawn/nspawn-patch-uid.c b/src/nspawn/nspawn-patch-uid.c
index f861db879a..063fdb1053 100644
--- a/src/nspawn/nspawn-patch-uid.c
+++ b/src/nspawn/nspawn-patch-uid.c
@@ -19,7 +19,7 @@
 
 #include <fcntl.h>
 #include <linux/magic.h>
-#ifdef HAVE_ACL
+#if HAVE_ACL
 #include <sys/acl.h>
 #endif
 #include <sys/stat.h>
@@ -37,7 +37,7 @@
 #include "strv.h"
 #include "user-util.h"
 
-#ifdef HAVE_ACL
+#if HAVE_ACL
 
 static int get_acl(int fd, const char *name, acl_type_t type, acl_t *ret) {
         char procfs_path[strlen("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
diff --git a/src/nspawn/nspawn-seccomp.c b/src/nspawn/nspawn-seccomp.c
index 38c2b12e95..196766dc98 100644
--- a/src/nspawn/nspawn-seccomp.c
+++ b/src/nspawn/nspawn-seccomp.c
@@ -22,20 +22,20 @@
 #include <sys/capability.h>
 #include <sys/types.h>
 
-#ifdef HAVE_SECCOMP
+#if HAVE_SECCOMP
 #include <seccomp.h>
 #endif
 
 #include "alloc-util.h"
 #include "log.h"
 #include "nspawn-seccomp.h"
-#ifdef HAVE_SECCOMP
+#if HAVE_SECCOMP
 #include "seccomp-util.h"
 #endif
 #include "string-util.h"
 #include "strv.h"
 
-#ifdef HAVE_SECCOMP
+#if HAVE_SECCOMP
 
 static int seccomp_add_default_syscall_filter(
                 scmp_filter_ctx ctx,
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 82fd0bd5f4..4e3803be82 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -17,7 +17,7 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#ifdef HAVE_BLKID
+#if HAVE_BLKID
 #include <blkid.h>
 #endif
 #include <errno.h>
@@ -26,7 +26,7 @@
 #include <linux/loop.h>
 #include <pwd.h>
 #include <sched.h>
-#ifdef HAVE_SELINUX
+#if HAVE_SELINUX
 #include <selinux/selinux.h>
 #endif
 #include <signal.h>
@@ -1234,7 +1234,7 @@ static int verify_arguments(void) {
                 return -EINVAL;
         }
 
-#ifndef HAVE_LIBIPTC
+#if ! HAVE_LIBIPTC
         if (arg_expose_ports) {
                 log_error("--port= is not supported, compiled without libiptc support.");
                 return -EOPNOTSUPP;
@@ -1547,7 +1547,7 @@ static int setup_pts(const char *dest) {
         const char *p;
         int r;
 
-#ifdef HAVE_SELINUX
+#if HAVE_SELINUX
         if (arg_selinux_apifs_context)
                 (void) asprintf(&options,
                                 "newinstance,ptmxmode=0666,mode=620,gid=" GID_FMT ",context=\"%s\"",
@@ -2332,7 +2332,7 @@ static int inner_child(
                         return log_error_errno(r, "personality() failed: %m");
         }
 
-#ifdef HAVE_SELINUX
+#if HAVE_SELINUX
         if (arg_selinux_context)
                 if (setexeccon(arg_selinux_context) < 0)
                         return log_error_errno(errno, "setexeccon(\"%s\") failed: %m", arg_selinux_context);