diff --git a/.github/workflows/compile-test.yml b/.github/workflows/compile-test.yml
index 2a05e3495..d1ec99799 100644
--- a/.github/workflows/compile-test.yml
+++ b/.github/workflows/compile-test.yml
@@ -14,9 +14,15 @@ jobs:
           - os: ubuntu-20.04
             php: "php7.4"
             php-config: "php-config7.4"
+            cc: "gcc"
           - os: ubuntu-22.04
             php: "php8.1"
             php-config: "php-config8.1"
+            cc: "gcc"
+          - os: ubuntu-22.04
+            php: "php8.1"
+            php-config: "php-config8.1"
+            cc: "clang"
 
     runs-on: ${{ matrix.os }}
 
@@ -43,16 +49,16 @@ jobs:
           libcurl4-openssl-dev \
           openjdk-11-jdk libgloox-dev gccgo \
           cli-common-dev mono-devel mono-mcs uuid-dev \
-          curl check
-    - uses: actions/checkout@v2
-    - name: Build kitchensink uWSGI binary
-      run: UWSGICONFIG_PHPPATH=${{ matrix.php-config }} /usr/bin/python3 uwsgiconfig.py --build travis
+          curl check ${{ matrix.cc == 'clang' && 'clang' || '' }}
+    - uses: actions/checkout@v4
+    - name: Build kitchensink uWSGI binary with gcc or default with clang
+      run: CC=${{ matrix.cc }} UWSGICONFIG_PHPPATH=${{ matrix.php-config }} /usr/bin/python3 uwsgiconfig.py --build ${{ matrix.cc == 'gcc' && 'travis' || '' }}
     - name: Build uWSGI binary
       run: |
-        /usr/bin/python3 uwsgiconfig.py --build base
+        CC=${{ matrix.cc }} /usr/bin/python3 uwsgiconfig.py --build base
     - name: Build cgi plugin
       run: |
-        /usr/bin/python3 uwsgiconfig.py --plugin plugins/cgi base
+        CC=${{ matrix.cc }} /usr/bin/python3 uwsgiconfig.py --plugin plugins/cgi base
     - name: Build dummy plugin
       run: |
-        /usr/bin/python3 uwsgiconfig.py --plugin plugins/dummy base
+        CC=${{ matrix.cc }} /usr/bin/python3 uwsgiconfig.py --plugin plugins/dummy base
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 009d48438..ba0cbbb49 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -27,7 +27,7 @@ jobs:
       if: contains(fromJson('["3.6","3.7","3.8","3.9","3.10","3.11","3.12"]'), matrix.python-version)
       run: |
         sudo apt install --no-install-recommends -qqyf python${{ matrix.python-version }}-distutils \
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Run unit tests
       if: matrix.test-suite == 'unittest'
       run: make tests
@@ -61,7 +61,7 @@ jobs:
         sudo apt install --no-install-recommends -qqyf python3-dev \
           libpcre3-dev libjansson-dev libcap2-dev ruby2.7-dev \
           curl check
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Run unit tests
       run: make tests
     - name: Build uWSGI binary
diff --git a/core/cache.c b/core/cache.c
index 93da38dfb..661320bf4 100644
--- a/core/cache.c
+++ b/core/cache.c
@@ -737,6 +737,12 @@ void uwsgi_cache_fix(struct uwsgi_cache *uc) {
 			if (uci->expires && (!next_scan || next_scan > uci->expires)) {
 				next_scan = uci->expires;
 			}
+			if (!uc->lru_head && !uci->lru_prev) {
+				uc->lru_head = i;
+			}
+			if (!uc->lru_tail && !uci->lru_next) {
+				uc->lru_tail = i;
+			}
 			restored++;
 		}
 		else {
diff --git a/core/ini.c b/core/ini.c
index 770819cb9..bb7587157 100644
--- a/core/ini.c
+++ b/core/ini.c
@@ -87,8 +87,6 @@ void uwsgi_ini_config(char *file, char *magic_table[]) {
 	char *key;
 	char *val;
 
-	int lines = 1;
-
 	char *section_asked = "uwsgi";
 	char *colon;
 	int got_section = 0;
@@ -130,7 +128,6 @@ void uwsgi_ini_config(char *file, char *magic_table[]) {
 		if (ini_line == NULL) {
 			break;
 		}
-		lines++;
 
 		// skip empty line
 		key = ini_lstrip(ini);
diff --git a/core/logging.c b/core/logging.c
index eb8cfaaee..a5ae67cff 100644
--- a/core/logging.c
+++ b/core/logging.c
@@ -707,7 +707,7 @@ void uwsgi_logit_simple(struct wsgi_request *wsgi_req) {
 	}
 
 	if (uwsgi.logging_options.memory_report == 1) {
-		rlen = snprintf(mempkt, 4096, "{address space usage: %lld bytes/%lluMB} {rss usage: %llu bytes/%lluMB} ", (unsigned long long) uwsgi.workers[uwsgi.mywid].vsz_size, (unsigned long long) uwsgi.workers[uwsgi.mywid].vsz_size / 1024 / 1024,
+		rlen = snprintf(mempkt, 4096, "{address space usage: %llu bytes/%lluMB} {rss usage: %llu bytes/%lluMB} ", (unsigned long long) uwsgi.workers[uwsgi.mywid].vsz_size, (unsigned long long) uwsgi.workers[uwsgi.mywid].vsz_size / 1024 / 1024,
 			(unsigned long long) uwsgi.workers[uwsgi.mywid].rss_size, (unsigned long long) uwsgi.workers[uwsgi.mywid].rss_size / 1024 / 1024);
 		logvec[logvecpos].iov_base = mempkt;
 		logvec[logvecpos].iov_len = rlen;
@@ -749,7 +749,7 @@ void get_memusage(uint64_t * rss, uint64_t * vsz) {
 	int i;
 	procfile = fopen("/proc/self/stat", "r");
 	if (procfile) {
-		i = fscanf(procfile, "%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %llu %lld", (unsigned long long *) vsz, (unsigned long long *) rss);
+		i = fscanf(procfile, "%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %llu %llu", (unsigned long long *) vsz, (unsigned long long *) rss);
 		if (i != 2) {
 			uwsgi_log("warning: invalid record in /proc/self/stat\n");
 		} else {
@@ -763,7 +763,7 @@ void get_memusage(uint64_t * rss, uint64_t * vsz) {
         int i;
         procfile = fopen("/proc/self/stat", "r");
         if (procfile) {
-                i = fscanf(procfile, "%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %llu %lld", (unsigned long long *) vsz, (unsigned long long *) rss);
+                i = fscanf(procfile, "%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %llu %llu", (unsigned long long *) vsz, (unsigned long long *) rss);
                 if (i != 2) {
                         uwsgi_log("warning: invalid record in /proc/self/stat\n");
                 }
diff --git a/core/master.c b/core/master.c
index 7a4b4010c..44d94e26f 100644
--- a/core/master.c
+++ b/core/master.c
@@ -253,7 +253,7 @@ static void master_check_listen_queue() {
 	uint64_t backlog = 0;
 	struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
 	while(uwsgi_sock) {
-		if (uwsgi_sock->family == AF_INET) {
+		if (uwsgi_sock->family == AF_INET || uwsgi_sock->family == AF_INET6) {
 			get_tcp_info(uwsgi_sock);
                 }
 #ifdef __linux__
diff --git a/core/master_checks.c b/core/master_checks.c
index 289daa686..6732db15b 100644
--- a/core/master_checks.c
+++ b/core/master_checks.c
@@ -180,7 +180,7 @@ void uwsgi_master_check_idle() {
 
 }
 
-int uwsgi_master_check_harakiri(int w, int c, int harakiri) {
+int uwsgi_master_check_harakiri(int w, int c, time_t harakiri) {
 /**
  * Triggers a harakiri when the following conditions are met:
  * - harakiri timeout > current time
diff --git a/core/utils.c b/core/utils.c
index 947c7c47e..26e56aac1 100644
--- a/core/utils.c
+++ b/core/utils.c
@@ -4048,7 +4048,7 @@ void uwsgi_uuid(char *buf) {
 	uuid_generate(uuid_value);
 	uuid_unparse(uuid_value, buf);
 #else
-	int i, r[11];
+	unsigned int i, r[11];
 	if (!uwsgi_file_exists("/dev/urandom"))
 		goto fallback;
 	int fd = open("/dev/urandom", O_RDONLY);
@@ -4064,7 +4064,7 @@ void uwsgi_uuid(char *buf) {
 	goto done;
 fallback:
 	for (i = 0; i < 11; i++) {
-		r[i] = rand();
+		r[i] = (unsigned int) rand();
 	}
 done:
 	snprintf(buf, 37, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x", r[0], r[1], r[2], r[3], r[4], r[5], r[6], r[7], r[8], r[9], r[10]);
diff --git a/core/yaml.c b/core/yaml.c
index 869c4dc45..c95b5d92a 100644
--- a/core/yaml.c
+++ b/core/yaml.c
@@ -211,7 +211,6 @@ void uwsgi_yaml_config(char *file, char *magic_table[]) {
 #else
 	int depth;
 	int current_depth = 0;
-	int lines = 1;
 	char *yaml_line;
 	char *section = "";
 
@@ -221,7 +220,6 @@ void uwsgi_yaml_config(char *file, char *magic_table[]) {
 		if (yaml_line == NULL) {
 			break;
 		}
-		lines++;
 
 		// skip empty line
 		if (yaml[0] == 0)
diff --git a/plugins/php/uwsgiplugin.py b/plugins/php/uwsgiplugin.py
index d930c44eb..492926023 100644
--- a/plugins/php/uwsgiplugin.py
+++ b/plugins/php/uwsgiplugin.py
@@ -21,7 +21,12 @@
     LDFLAGS.append('-L%s' % ld_run_path)
     os.environ['LD_RUN_PATH'] = ld_run_path
 
-LIBS = [os.popen(PHPPATH + ' --libs').read().rstrip(), '-lphp' + php_version]
+# PHP8 and above does not add the version to the library
+# name
+if int(php_version) < 8:
+    LIBS = [os.popen(PHPPATH + ' --libs').read().rstrip(), '-lphp' + php_version]
+else:
+    LIBS = [os.popen(PHPPATH + ' --libs').read().rstrip(), '-lphp']
 
 phplibdir = os.environ.get('UWSGICONFIG_PHPLIBDIR')
 if phplibdir:
diff --git a/plugins/python/pyloader.c b/plugins/python/pyloader.c
index 8e632ec0f..78f14195a 100644
--- a/plugins/python/pyloader.c
+++ b/plugins/python/pyloader.c
@@ -97,7 +97,9 @@ int init_uwsgi_app(int loader, void *arg1, struct wsgi_request *wsgi_req, PyThre
 	memset(wi, 0, sizeof(struct uwsgi_app));
 	wi->modifier1 = python_plugin.modifier1;
 	wi->mountpoint_len = wsgi_req->appid_len < 0xff ? wsgi_req->appid_len : (0xff-1);
-	strncpy(wi->mountpoint, wsgi_req->appid, wi->mountpoint_len);
+	if (wi->mountpoint_len > 0) {
+		strncpy(wi->mountpoint, wsgi_req->appid, wi->mountpoint_len);
+	}
 
 	// dynamic chdir ?
 	if (wsgi_req->chdir_len > 0) {
diff --git a/uwsgiconfig.py b/uwsgiconfig.py
index 968690d39..89d135dbf 100644
--- a/uwsgiconfig.py
+++ b/uwsgiconfig.py
@@ -683,8 +683,16 @@ def __init__(self, filename, mute=False):
         if 'UWSGI_INCLUDES' in os.environ:
             self.include_path += os.environ['UWSGI_INCLUDES'].split(',')
 
-
-        self.cflags = ['-O2', '-I.', '-Wall', '-D_LARGEFILE_SOURCE', '-D_FILE_OFFSET_BITS=64'] + os.environ.get("CFLAGS", "").split() + self.get('cflags','').split()
+        cflags = [
+            '-O2',
+            '-I.',
+            '-Wall',
+            '-D_LARGEFILE_SOURCE',
+            '-D_FILE_OFFSET_BITS=64'
+        ]
+        if "gcc" in GCC:
+            cflags.append('-Wformat-signedness')
+        self.cflags = cflags + os.environ.get("CFLAGS", "").split() + self.get('cflags', '').split()
 
         report['kernel'] = uwsgi_os