Fix some build errors

libc/integral/c.inc

@@ -726,6 +726,7 @@ void abort(void) wontreturn;
 #if __GNUC__ + 0 >= 9
 #pragma GCC diagnostic ignored /* "always true" breaks dce */ "-Waddress"
 #if __GNUC__ >= 11
+#pragma GCC diagnostic ignored /* annoying */ "-Wattributes"
 #pragma GCC diagnostic ignored /* orwellian */ "-Wold-style-definition"
 #endif /* GCC11+ */
 #endif /* GCC9+ */

libc/isystem/vaesintrin.h

@@ -1,4 +0,0 @@
-#ifndef COSMOPOLITAN_LIBC_ISYSTEM_VAESINTRIN_INTERNAL_H_
-#define COSMOPOLITAN_LIBC_ISYSTEM_VAESINTRIN_INTERNAL_H_
-#include "third_party/intel/vaesintrin.internal.h"
-#endif /* COSMOPOLITAN_LIBC_ISYSTEM_VAESINTRIN_INTERNAL_H_ */

test/libc/intrin/strcmp_test.c

@@ -24,6 +24,7 @@
 #include "libc/mem/mem.h"
 #include "libc/nexgen32e/cachesize.h"
 #include "libc/nexgen32e/x86feature.h"
+#include "libc/runtime/runtime.h"
 #include "libc/stdio/rand.h"
 #include "libc/stdio/stdio.h"
 #include "libc/str/str.h"
@@ -505,14 +506,16 @@ dontinline int strcasecmp_pure(const char *a, const char *b) {
   return tolower(*a & 0xff) - tolower(*b & 0xff);
 }
 
-char *randomize_buf2str(size_t size, char data[size]) {
+char *randomize_buf2str(size_t size, char *data) {
+  assert(data);
   rngset(data, size, _rand64, -1);
   data[size - 1] = '\0';
   return data;
 }
 
-char *longstringislong(size_t size, char data[size]) {
+char *longstringislong(size_t size, char *data) {
   unsigned i;
+  assert(data);
   randomize_buf2str(size, data);
   for (i = 0; i < size; ++i) {
     data[i] |= 1u << (i & 5);

third_party/intel/vaesintrin.internal.h

@@ -1,5 +1,8 @@
 /* clang-format off */
 #if defined(__x86_64__) && !(__ASSEMBLER__ + __LINKER__ + 0)
+#ifndef _IMMINTRIN_H_INCLUDED
+# error "Never use <vaesintrin.h> directly; include <immintrin.h> instead."
+#endif
 #ifndef __VAESINTRIN_H_INCLUDED
 #define __VAESINTRIN_H_INCLUDED
 #if !defined(__VAES__) || !defined(__AVX__)

third_party/mbedtls/test/test_suite_ssl.c

@@ -91,7 +91,7 @@ void log_analyzer( void *ctx, int level,
 
 /* Invalid minor version used when not specifying a min/max version or expecting a test to fail */
 #define TEST_SSL_MINOR_VERSION_NONE -1
-
+s
 typedef struct handshake_test_options
 {
     const char *cipher;
@@ -2270,6 +2270,8 @@ void test_ssl_mock_sanity( )
     unsigned char received[MSGLEN];
     mbedtls_mock_socket socket;
 
+    memset(message, 0, sizeof(message));
+
     mbedtls_mock_socket_init( &socket );
     TEST_ASSERT( mbedtls_mock_tcp_send_b( &socket, message, MSGLEN ) < 0 );
     mbedtls_mock_socket_close( &socket );

third_party/musl/rand48.c

@@ -25,8 +25,8 @@
 │  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                      │
 │                                                                              │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/str/str.h"
 #include "third_party/musl/rand48.h"
+#include "libc/str/str.h"
 
 asm(".ident\t\"\\n\\n\
 Musl libc (MIT License)\\n\
@@ -87,7 +87,7 @@ long mrand48(void)
 	return jrand48(__seed48);
 }
 
-unsigned short *seed48(unsigned short *s)
+unsigned short *seed48(unsigned short s[3])
 {
 	static unsigned short p[3];
 	memcpy(p, __seed48, sizeof p);

tool/build/lib/lines.c

@@ -16,9 +16,10 @@
 │ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
 │ PERFORMANCE OF THIS SOFTWARE.                                                │
 ╚─────────────────────────────────────────────────────────────────────────────*/
+#include "tool/build/lib/lines.h"
+#include "libc/limits.h"
 #include "libc/mem/mem.h"
 #include "libc/str/str.h"
-#include "tool/build/lib/lines.h"
 
 struct Lines *NewLines(void) {
   return calloc(1, sizeof(struct Lines));
@@ -46,7 +47,8 @@ void AppendLines(struct Lines *lines, const char *s) {
       s = p + 1;
     } else {
       if (*s) {
-        AppendLine(lines, s, -1);
+        // gcc11 whines about SIZE_MAX > PTRDIFF_MAX
+        AppendLine(lines, s, PTRDIFF_MAX);
       }
       break;
     }

tool/emacs/cosmo-cpp-constants.el

@@ -71,6 +71,7 @@
     "__SSE2__"
     "__SSE3__"
     "__SSSE3__"
+    "__SSE4A__"
     "__SSE4_1__"
     "__SSE4_2__"
     "__XSAVE__"