fix "ifdef ENABLE_foo": should always be "#if ENABLE_foo"

function                                             old     new   delta
pack_gzip                                           1729    1789     +60
fill_window                                          220     216      -4
static.gzip_level_config                              24       -     -24
gzip_main                                            275     192     -83
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 1/2 up/down: 60/-111)           Total: -51 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/archival/gzip.c b/archival/gzip.c
index e698c26cd..7c6dee1d7 100644
--- a/archival/gzip.c
+++ b/archival/gzip.c
@@ -275,7 +275,7 @@ enum {
  * input file length plus MIN_LOOKAHEAD.
  */
 
-#ifndef ENABLE_FEATURE_GZIP_LEVELS
+#if !ENABLE_FEATURE_GZIP_LEVELS
 
         max_chain_length = 4096,
 /* To speed up deflation, hash chains are never searched beyond this length.
@@ -314,7 +314,7 @@ enum {
 
 struct globals {
 
-#ifdef ENABLE_FEATURE_GZIP_LEVELS
+#if ENABLE_FEATURE_GZIP_LEVELS
         unsigned max_chain_length;
         unsigned max_lazy_match;
         unsigned good_match;
@@ -2196,7 +2196,7 @@ int gzip_main(int argc UNUSED_PARAM, char **argv)
 #endif
 {
         unsigned opt;
-#ifdef ENABLE_FEATURE_GZIP_LEVELS
+#if ENABLE_FEATURE_GZIP_LEVELS
         static const struct {
                 uint8_t good;
                 uint8_t chain_shift;
@@ -2224,7 +2224,7 @@ int gzip_main(int argc UNUSED_PARAM, char **argv)
         if (opt & 0x18) // -d and/or -t
                 return gunzip_main(argc, argv);
 #endif
-#ifdef ENABLE_FEATURE_GZIP_LEVELS
+#if ENABLE_FEATURE_GZIP_LEVELS
         opt >>= ENABLE_FEATURE_GZIP_DECOMPRESS ? 7 : 5; /* drop cfv[dt]qn bits */
         if (opt == 0)
                 opt = 1 << 6; /* default: 6 */
diff --git a/procps/pstree.c b/procps/pstree.c
index f97e99639..bc9f0c927 100644
--- a/procps/pstree.c
+++ b/procps/pstree.c
@@ -34,7 +34,7 @@
 
 struct child;
 
-#ifdef ENABLE_FEATURE_SHOW_THREADS
+#if ENABLE_FEATURE_SHOW_THREADS
 /* For threads, we add {...} around the comm, so we need two extra bytes */
 # define COMM_DISP_LEN (COMM_LEN + 2)
 #else