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

1 files changed, 3 insertions, 3 deletions

diff --git a/src/udev/udev-builtin.c b/src/udev/udev-builtin.c
index e6b36f124f..e4dccd0b09 100644
--- a/src/udev/udev-builtin.c
+++ b/src/udev/udev-builtin.c
@@ -27,21 +27,21 @@
 static bool initialized;
 
 static const struct udev_builtin *builtins[] = {
-#ifdef HAVE_BLKID
+#if HAVE_BLKID
         [UDEV_BUILTIN_BLKID] = &udev_builtin_blkid,
 #endif
         [UDEV_BUILTIN_BTRFS] = &udev_builtin_btrfs,
         [UDEV_BUILTIN_HWDB] = &udev_builtin_hwdb,
         [UDEV_BUILTIN_INPUT_ID] = &udev_builtin_input_id,
         [UDEV_BUILTIN_KEYBOARD] = &udev_builtin_keyboard,
-#ifdef HAVE_KMOD
+#if HAVE_KMOD
         [UDEV_BUILTIN_KMOD] = &udev_builtin_kmod,
 #endif
         [UDEV_BUILTIN_NET_ID] = &udev_builtin_net_id,
         [UDEV_BUILTIN_NET_LINK] = &udev_builtin_net_setup_link,
         [UDEV_BUILTIN_PATH_ID] = &udev_builtin_path_id,
         [UDEV_BUILTIN_USB_ID] = &udev_builtin_usb_id,
-#ifdef HAVE_ACL
+#if HAVE_ACL
         [UDEV_BUILTIN_UACCESS] = &udev_builtin_uaccess,
 #endif
 };