diff --git a/lib/pclsync/Makefile b/lib/pclsync/Makefile
index f8aa3ae..0585523 100644
--- a/lib/pclsync/Makefile
+++ b/lib/pclsync/Makefile
@@ -5,7 +5,7 @@ RANLIB=ranlib
 USESSL=mbed
 
 #CFLAGS=-Wall -Wpointer-arith -O2 -g -mtune=core2
-#CFLAGS=-Wall -Wpointer-arith -Wunused-function -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-label -Wunused-macros -Wunused-variable -Wuse-after-free -Wuseless-cast -Wunused-value -Wunused-parameter -Wunused-local-typedefs -O2 -g -fno-stack-protector -fomit-frame-pointer -mtune=core2 -I../sqlite -DP_ELECTRON -fPIC
+#CFLAGS=-Wunused-variable -Wuse-after-free -Wuseless-cast -Wunused-value -Wunused-parameter -Wunused-local-typedefs -O2 -g -fno-stack-protector -fomit-frame-pointer -mtune=core2 -I../sqlite -DP_ELECTRON -fPIC
 CFLAGS=-O2 -g -fno-stack-protector -fomit-frame-pointer -mtune=core2 -I../sqlite -DP_ELECTRON -fPIC
 
 #CFLAGS=-Wall -Wpointer-arith -O2 -g -fsanitize=address -mtune=core2
diff --git a/lib/pclsync/papi.c b/lib/pclsync/papi.c
index 879b4ff..915b7d8 100644
--- a/lib/pclsync/papi.c
+++ b/lib/pclsync/papi.c
@@ -35,21 +35,25 @@
 #include <string.h>
 #include <stddef.h>
 
+/*
+  commented definitions are unused, but kept because they may be
+  important later.
+*/
 #define RPARAM_STR1  0
-#define RPARAM_STR2  1
-#define RPARAM_STR3  2
+//#define RPARAM_STR2  1
+//#define RPARAM_STR3  2
 #define RPARAM_STR4  3
 #define RPARAM_RSTR1 4
-#define RPARAM_RSTR2 5
-#define RPARAM_RSTR3 6
+//#define RPARAM_RSTR2 5
+//#define RPARAM_RSTR3 6
 #define RPARAM_RSTR4 7
 #define RPARAM_NUM1  8
-#define RPARAM_NUM2  9
-#define RPARAM_NUM3  10
-#define RPARAM_NUM4  11
-#define RPARAM_NUM5  12
-#define RPARAM_NUM6  13
-#define RPARAM_NUM7  14
+//#define RPARAM_NUM2  9
+//#define RPARAM_NUM3  10
+//#define RPARAM_NUM4  11
+//#define RPARAM_NUM5  12
+//#define RPARAM_NUM6  13
+//#define RPARAM_NUM7  14
 #define RPARAM_NUM8  15
 #define RPARAM_HASH  16
 #define RPARAM_ARRAY 17
diff --git a/lib/pclsync/pcache.c b/lib/pclsync/pcache.c
index 45f3510..521c872 100644
--- a/lib/pclsync/pcache.c
+++ b/lib/pclsync/pcache.c
@@ -43,8 +43,9 @@
 #define hash_to_bucket(h) ((h)%CACHE_HASH_SIZE)
 #define hash_to_lock(h)   ((((h)*CACHE_LOCKS)/CACHE_HASH_SIZE)%CACHE_LOCKS)
 
-#define CACHE_WAIT_FOR_TIMER 1
-#define CACHE_TIMER_CALLED   2
+// unused, may be important later
+//#define CACHE_WAIT_FOR_TIMER 1
+//#define CACHE_TIMER_CALLED   2
 
 typedef struct {
   psync_list list;
diff --git a/lib/pclsync/pcompat.c b/lib/pclsync/pcompat.c
index 81e7360..70704e1 100644
--- a/lib/pclsync/pcompat.c
+++ b/lib/pclsync/pcompat.c
@@ -2506,8 +2506,6 @@ psync_invalidate_os_cache_needed(){
   return 0;
 }
 
-#define REBUILD_ICON_BUFFER_SIZE 1024
-
 extern int overlays_running;
 
 void 
diff --git a/lib/pclsync/pcrc32c.c b/lib/pclsync/pcrc32c.c
index 0c2db9a..b5d5fac 100644
--- a/lib/pclsync/pcrc32c.c
+++ b/lib/pclsync/pcrc32c.c
@@ -422,7 +422,8 @@ PSYNC_NOINLINE static int psync_has_hw_crc(){
 }
 
 #define CRC32C_64BIT_HW(crc, data) asm("crc32q %[value], %[crcval]\n" : [crcval] "+r" (crc) : [value] "g" (data))
-#define CRC32C_32BIT_HW(crc, data) asm("crc32l %[value], %[crcval]\n" : [crcval] "+r" (crc) : [value] "g" (data))
+// unused, maybe important later
+//#define CRC32C_32BIT_HW(crc, data) asm("crc32l %[value], %[crcval]\n" : [crcval] "+r" (crc) : [value] "g" (data))
 #define CRC32C_8BIT_HW(crc, data) asm("crc32b %[value], %[crcval]\n" : [crcval] "+r" (crc) : [value] "g" (data))
 
 #elif defined(CRC32_MSC)
diff --git a/lib/pclsync/pdevice_monitor.c b/lib/pclsync/pdevice_monitor.c
index 930a464..6fbff13 100644
--- a/lib/pclsync/pdevice_monitor.c
+++ b/lib/pclsync/pdevice_monitor.c
@@ -37,14 +37,11 @@
 #include "pbusinessaccount.h"
 #include "pdevicemap.h"
 
-#define P_DEVICE_VERBOSE
-
 #include "pdevice_monitor.h"
 // #include "pdevicemap.h"
 #include "plocalscan.h"
 #include "ptimer.h"
 
-#define _strdup strdup
 #define DEV_MONITOR_ACTIVITY_TIMER_INT 20
 
 static pthread_mutex_t devmon_mutex=PTHREAD_MUTEX_INITIALIZER;
diff --git a/lib/pclsync/pfs.c b/lib/pclsync/pfs.c
index 751f979..d3dc771 100644
--- a/lib/pclsync/pfs.c
+++ b/lib/pclsync/pfs.c
@@ -81,7 +81,7 @@ typedef off_t fuse_off_t;
 #define openfile_to_fh(x) ((uintptr_t)x)
 
 #define FS_BLOCK_SIZE 4096
-#define FS_MAX_WRITE  16*1024*1024
+//#define FS_MAX_WRITE  16*1024*1024 // unused, maybe important later
 
 #if defined(P_OS_LINUX)
 #define PSYNC_FS_ERR_CRYPTO_EXPIRED EROFS
diff --git a/lib/pclsync/pfscrypto.c b/lib/pclsync/pfscrypto.c
index a3324e2..dd848ff 100644
--- a/lib/pclsync/pfscrypto.c
+++ b/lib/pclsync/pfscrypto.c
@@ -43,9 +43,9 @@
 #define PSYNC_CRYPTO_LOG_DATA   1
 #define PSYNC_CRYPTO_LOG_INT    2
 
-#define PSYNC_CRYPTO_HASH_TREE_SHIFT 8
+//#define PSYNC_CRYPTO_HASH_TREE_SHIFT 8 // unused, maybe important later
 
-#define PSYNC_LOG_STATUS_INCOMPLETE 0
+//#define PSYNC_LOG_STATUS_INCOMPLETE 0 // unused, maybe important later
 #define PSYNC_LOG_STATUS_FINALIZED  1
 
 #define PSYNC_LOG_HASHID_FH256      0
diff --git a/lib/pclsync/pfsxattr.c b/lib/pclsync/pfsxattr.c
index 363e8fb..5f496f1 100644
--- a/lib/pclsync/pfsxattr.c
+++ b/lib/pclsync/pfsxattr.c
@@ -30,7 +30,6 @@
 */
 
 #define FUSE_USE_VERSION 26
-#define _FILE_OFFSET_BITS 64
 
 #include "pfsxattr.h"
 #include "plibs.h"
diff --git a/lib/pclsync/plibs.c b/lib/pclsync/plibs.c
index c39778b..a0afe8c 100644
--- a/lib/pclsync/plibs.c
+++ b/lib/pclsync/plibs.c
@@ -1965,7 +1965,7 @@ struct psync_task_t_{
   int status;
 };
 
-#define PSYNC_WAIT_ANYBODY -1
+//#define PSYNC_WAIT_ANYBODY -1 // unused, but may be important later
 #define PSYNC_WAIT_NOBODY  -2
 #define PSYNC_WAIT_FREED   -3
 
diff --git a/lib/pclsync/pnetlibs.c b/lib/pclsync/pnetlibs.c
index 916a19d..6e247f2 100644
--- a/lib/pclsync/pnetlibs.c
+++ b/lib/pclsync/pnetlibs.c
@@ -29,7 +29,6 @@
    DAMAGE.
 */
 
-#define __STDC_FORMAT_MACROS
 #include <stdio.h>
 #include <ctype.h>
 #include <stdarg.h>
diff --git a/lib/pclsync/psettings.c b/lib/pclsync/psettings.c
index cf10c2f..05f7d4d 100644
--- a/lib/pclsync/psettings.c
+++ b/lib/pclsync/psettings.c
@@ -62,7 +62,9 @@ static void fsroot_change(){
 }
 
 #define PSYNC_SETTING_owneremail       16
-#define PSYNC_SETTING_cryptosetup      17
+
+// unused but may be important later
+//#define PSYNC_SETTING_cryptosetup      17 
 
 static psync_setting_t settings[]={
   {"usessl", psync_timer_do_notify_exception, NULL, {PSYNC_USE_SSL_DEFAULT}, PSYNC_TBOOL},
diff --git a/lib/pclsync/pssl-mbedtls.c b/lib/pclsync/pssl-mbedtls.c
index 0858e4a..84fc60a 100644
--- a/lib/pclsync/pssl-mbedtls.c
+++ b/lib/pclsync/pssl-mbedtls.c
@@ -673,7 +673,7 @@ psync_rsa_signature_t psync_ssl_rsa_sign_sha256_hash(psync_rsa_privatekey_t rsa,
 #define xmm0_xmm3   "0xD8"
 #define xmm0_xmm4   "0xE0"
 #define xmm0_xmm5   "0xE8"
-#define xmm1_xmm0   "0xC1"
+//#define xmm1_xmm0   "0xC1" // unused, may be important later
 #define xmm1_xmm2   "0xD1"
 #define xmm1_xmm3   "0xD9"
 #define xmm1_xmm4   "0xE1"
diff --git a/lib/pclsync/pupload.c b/lib/pclsync/pupload.c
index 15d7c82..524b648 100644
--- a/lib/pclsync/pupload.c
+++ b/lib/pclsync/pupload.c
@@ -179,7 +179,9 @@ static int do_run_command(const char *cmd, size_t cmdlen, const binparam *params
 }
 
 #define run_command(cmd, params) do_run_command(cmd, strlen(cmd), params, sizeof(params)/sizeof(binparam))
-#define run_command_res(cmd, params) do_run_command_res(cmd, strlen(cmd), params, sizeof(params)/sizeof(binparam))
+
+// unused, may be important later
+//#define run_command_res(cmd, params) do_run_command_res(cmd, strlen(cmd), params, sizeof(params)/sizeof(binparam))
 
 static int task_createfolder(psync_syncid_t syncid, psync_folderid_t localfolderid, const char *name){
   psync_sql_res *res;