diff --git a/src/libipc/platform/posix/condition.h b/src/libipc/platform/posix/condition.h
index 3500322..ea66a96 100644
--- a/src/libipc/platform/posix/condition.h
+++ b/src/libipc/platform/posix/condition.h
@@ -23,7 +23,7 @@ class condition {
     pthread_cond_t *acquire_cond(char const *name) {
         LIBIPC_LOG();
         if (!shm_.acquire(name, sizeof(pthread_cond_t))) {
-            log.error("[acquire_cond] fail shm.acquire: %s", name);
+            log.error("[acquire_cond] fail shm.acquire: ", name);
             return nullptr;
         }
         return static_cast<pthread_cond_t *>(shm_.get());
@@ -62,17 +62,17 @@ public:
         int eno;
         pthread_condattr_t cond_attr;
         if ((eno = ::pthread_condattr_init(&cond_attr)) != 0) {
-            log.error("fail pthread_condattr_init[%d]", eno);
+            log.error("fail pthread_condattr_init[", eno, "]");
             return false;
         }
         LIBIPC_UNUSED auto guard_cond_attr = guard([&cond_attr] { ::pthread_condattr_destroy(&cond_attr); });
         if ((eno = ::pthread_condattr_setpshared(&cond_attr, PTHREAD_PROCESS_SHARED)) != 0) {
-            log.error("fail pthread_condattr_setpshared[%d]", eno);
+            log.error("fail pthread_condattr_setpshared[", eno, "]");
             return false;
         }
         *cond_ = PTHREAD_COND_INITIALIZER;
         if ((eno = ::pthread_cond_init(cond_, &cond_attr)) != 0) {
-            log.error("fail pthread_cond_init[%d]", eno);
+            log.error("fail pthread_cond_init[", eno, "]");
             return false;
         }
         finally.dismiss();
@@ -84,7 +84,7 @@ public:
         if ((shm_.ref() <= 1) && cond_ != nullptr) {
             int eno;
             if ((eno = ::pthread_cond_destroy(cond_)) != 0) {
-                log.error("fail pthread_cond_destroy[%d]", eno);
+                log.error("fail pthread_cond_destroy[", eno, "]");
             }
         }
         shm_.release();
@@ -95,7 +95,7 @@ public:
         if ((shm_.ref() <= 1) && cond_ != nullptr) {
             int eno;
             if ((eno = ::pthread_cond_destroy(cond_)) != 0) {
-                log.error("fail pthread_cond_destroy[%d]", eno);
+                log.error("fail pthread_cond_destroy[", eno, "]");
             }
         }
         shm_.clear(); // Make sure the storage is cleaned up.
@@ -113,7 +113,7 @@ public:
         case invalid_value: {
                 int eno;
                 if ((eno = ::pthread_cond_wait(cond_, static_cast<pthread_mutex_t *>(mtx.native()))) != 0) {
-                    log.error("fail pthread_cond_wait[%d]", eno);
+                    log.error("fail pthread_cond_wait[", eno, "]");
                     return false;
                 }
             }
@@ -137,7 +137,7 @@ public:
         if (!valid()) return false;
         int eno;
         if ((eno = ::pthread_cond_signal(cond_)) != 0) {
-            log.error("fail pthread_cond_signal[%d]", eno);
+            log.error("fail pthread_cond_signal[", eno, "]");
             return false;
         }
         return true;
@@ -147,7 +147,7 @@ public:
         if (!valid()) return false;
         int eno;
         if ((eno = ::pthread_cond_broadcast(cond_)) != 0) {
-            log.error("fail pthread_cond_broadcast[%d]", eno);
+            log.error("fail pthread_cond_broadcast[", eno, "]");
             return false;
         }
         return true;
diff --git a/src/libipc/platform/posix/semaphore_impl.h b/src/libipc/platform/posix/semaphore_impl.h
index 9d52cbe..d9d4213 100644
--- a/src/libipc/platform/posix/semaphore_impl.h
+++ b/src/libipc/platform/posix/semaphore_impl.h
@@ -37,7 +37,7 @@ public:
         LIBIPC_LOG();
         close();
         if (!shm_.acquire(name, 1)) {
-            log.error("[open_semaphore] fail shm.acquire: ", name, "");
+            log.error("[open_semaphore] fail shm.acquire: ", name);
             return false;
         }
         // POSIX semaphore names must start with "/" on some platforms (e.g., FreeBSD)
@@ -49,7 +49,7 @@ public:
         }
         h_ = ::sem_open(sem_name_.c_str(), O_CREAT, 0666, static_cast<unsigned>(count));
         if (h_ == SEM_FAILED) {
-            log.error("fail sem_open[%d]: ", errno, sem_name_.c_str(, ""));
+            log.error("fail sem_open[", errno, "]: ", sem_name_);
             return false;
         }
         return true;
@@ -59,13 +59,13 @@ public:
         LIBIPC_LOG();
         if (!valid()) return;
         if (::sem_close(h_) != 0) {
-            log.error("fail sem_close[%d]: ", errno, "");
+            log.error("fail sem_close[", errno, "]");
         }
         h_ = SEM_FAILED;
         if (!sem_name_.empty() && shm_.name() != nullptr) {
             if (shm_.release() <= 1) {
                 if (::sem_unlink(sem_name_.c_str()) != 0) {
-                    log.error("fail sem_unlink[%d]: ", errno, sem_name_.c_str(, ", name: %s"));
+                    log.error("fail sem_unlink[", errno, "]: ", sem_name_);
                 }
             }
         }
@@ -76,7 +76,7 @@ public:
         LIBIPC_LOG();
         if (valid()) {
             if (::sem_close(h_) != 0) {
-                log.error("fail sem_close[%d]: ", errno, "");
+                log.error("fail sem_close[", errno, "]");
             }
             h_ = SEM_FAILED;
         }
@@ -104,7 +104,7 @@ public:
         if (!valid()) return false;
         if (tm == invalid_value) {
             if (::sem_wait(h_) != 0) {
-                log.error("fail sem_wait[%d]: ", errno, "");
+                log.error("fail sem_wait[", errno, "]");
                 return false;
             }
         } else {
@@ -124,7 +124,7 @@ public:
         if (!valid()) return false;
         for (std::uint32_t i = 0; i < count; ++i) {
             if (::sem_post(h_) != 0) {
-                log.error("fail sem_post[%d]: ", errno, "");
+                log.error("fail sem_post[", errno, "]");
                 return false;
             }
         }
diff --git a/src/libipc/platform/win/mutex.h b/src/libipc/platform/win/mutex.h
index 3eb536d..1989d95 100644
--- a/src/libipc/platform/win/mutex.h
+++ b/src/libipc/platform/win/mutex.h
@@ -40,7 +40,7 @@ public:
         close();
         h_ = ::CreateMutex(detail::get_sa(), FALSE, detail::to_tchar(name).c_str());
         if (h_ == NULL) {
-            log.error("fail CreateMutex[%lu]: ", ::GetLastError(, ""), name);
+            log.error("fail CreateMutex[", static_cast<unsigned long>(::GetLastError()), "]: ", name);
             return false;
         }
         return true;
diff --git a/src/libipc/platform/win/semaphore.h b/src/libipc/platform/win/semaphore.h
index 1be0b56..2182d91 100644
--- a/src/libipc/platform/win/semaphore.h
+++ b/src/libipc/platform/win/semaphore.h
@@ -39,7 +39,7 @@ public:
                                static_cast<LONG>(count), LONG_MAX, 
                                detail::to_tchar(name).c_str());
         if (h_ == NULL) {
-            log.error("fail CreateSemaphore[%lu]: ", ::GetLastError(, ""), name);
+            log.error("fail CreateSemaphore[", static_cast<unsigned long>(::GetLastError()), "]: ", name);
             return false;
         }
         return true;