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, 2 insertions, 2 deletions

diff --git a/src/quotacheck/quotacheck.c b/src/quotacheck/quotacheck.c
index a42fce377e..1339564edb 100644
--- a/src/quotacheck/quotacheck.c
+++ b/src/quotacheck/quotacheck.c
@@ -49,7 +49,7 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
                         log_warning("Invalid quotacheck.mode= parameter '%s'. Ignoring.", value);
         }
 
-#ifdef HAVE_SYSV_COMPAT
+#if HAVE_SYSV_COMPAT
         else if (streq(key, "forcequotacheck") && !value) {
                 log_warning("Please use 'quotacheck.mode=force' rather than 'forcequotacheck' on the kernel command line.");
                 arg_force = true;
@@ -61,7 +61,7 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
 
 static void test_files(void) {
 
-#ifdef HAVE_SYSV_COMPAT
+#if HAVE_SYSV_COMPAT
         if (access("/forcequotacheck", F_OK) >= 0) {
                 log_error("Please pass 'quotacheck.mode=force' on the kernel command line rather than creating /forcequotacheck on the root file system.");
                 arg_force = true;