Merge conflicts

5 files changed, 51 insertions, 28 deletions

diff --git a/lib/libsqlite3/src/loadext.c b/lib/libsqlite3/src/loadext.c
index 776f08760ea..f208c52a293 100644
--- a/lib/libsqlite3/src/loadext.c
+++ b/lib/libsqlite3/src/loadext.c
@@ -34,7 +34,6 @@
 # define sqlite3_column_table_name16    0
 # define sqlite3_column_origin_name     0
 # define sqlite3_column_origin_name16   0
-# define sqlite3_table_column_metadata  0
 #endif
 
 #ifdef SQLITE_OMIT_AUTHORIZATION
diff --git a/lib/libsqlite3/src/os_unix.c b/lib/libsqlite3/src/os_unix.c
index 1216ab33a43..84b9e22d1be 100644
--- a/lib/libsqlite3/src/os_unix.c
+++ b/lib/libsqlite3/src/os_unix.c
@@ -3386,9 +3386,9 @@ int sqlite3_fullsync_count = 0;
 ** We do not trust systems to provide a working fdatasync().  Some do.
 ** Others do no.  To be safe, we will stick with the (slightly slower)
 ** fsync(). If you know that your system does support fdatasync() correctly,
-** then simply compile with -Dfdatasync=fdatasync
+** then simply compile with -Dfdatasync=fdatasync or -DHAVE_FDATASYNC
 */
-#if !defined(fdatasync)
+#if !defined(fdatasync) && !HAVE_FDATASYNC
 # define fdatasync fsync
 #endif
 
@@ -3709,24 +3709,28 @@ static int fcntlSizeHint(unixFile *pFile, i64 nByte){
       }while( err==EINTR );
       if( err ) return SQLITE_IOERR_WRITE;
 #else
-      /* If the OS does not have posix_fallocate(), fake it. First use
-      ** ftruncate() to set the file size, then write a single byte to
-      ** the last byte in each block within the extended region. This
-      ** is the same technique used by glibc to implement posix_fallocate()
-      ** on systems that do not have a real fallocate() system call.
+      /* If the OS does not have posix_fallocate(), fake it. Write a 
+      ** single byte to the last byte in each block that falls entirely
+      ** within the extended region. Then, if required, a single byte
+      ** at offset (nSize-1), to set the size of the file correctly.
+      ** This is a similar technique to that used by glibc on systems
+      ** that do not have a real fallocate() call.
       */
       int nBlk = buf.st_blksize;  /* File-system block size */
+      int nWrite = 0;             /* Number of bytes written by seekAndWrite */
       i64 iWrite;                 /* Next offset to write to */
 
-      if( robust_ftruncate(pFile->h, nSize) ){
-        pFile->lastErrno = errno;
-        return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath);
-      }
       iWrite = ((buf.st_size + 2*nBlk - 1)/nBlk)*nBlk-1;
-      while( iWrite<nSize ){
-        int nWrite = seekAndWrite(pFile, iWrite, "", 1);
+      assert( iWrite>=buf.st_size );
+      assert( (iWrite/nBlk)==((buf.st_size+nBlk-1)/nBlk) );
+      assert( ((iWrite+1)%nBlk)==0 );
+      for(/*no-op*/; iWrite<nSize; iWrite+=nBlk ){
+        nWrite = seekAndWrite(pFile, iWrite, "", 1);
+        if( nWrite!=1 ) return SQLITE_IOERR_WRITE;
+      }
+      if( nWrite==0 || (nSize%nBlk) ){
+        nWrite = seekAndWrite(pFile, nSize-1, "", 1);
         if( nWrite!=1 ) return SQLITE_IOERR_WRITE;
-        iWrite += nBlk;
       }
 #endif
     }
diff --git a/lib/libsqlite3/src/parse.y b/lib/libsqlite3/src/parse.y
index 877827e68d7..544888a2281 100644
--- a/lib/libsqlite3/src/parse.y
+++ b/lib/libsqlite3/src/parse.y
@@ -415,13 +415,19 @@ select(A) ::= with(W) selectnowith(X). {
     int cnt = 0, mxSelect;
     p->pWith = W;
     if( p->pPrior ){
+      u16 allValues = SF_Values;
       pNext = 0;
       for(pLoop=p; pLoop; pNext=pLoop, pLoop=pLoop->pPrior, cnt++){
         pLoop->pNext = pNext;
         pLoop->selFlags |= SF_Compound;
+        allValues &= pLoop->selFlags;
       }
-      mxSelect = pParse->db->aLimit[SQLITE_LIMIT_COMPOUND_SELECT];
-      if( mxSelect && cnt>mxSelect ){
+      if( allValues ){
+        p->selFlags |= SF_AllValues;
+      }else if(
+        (mxSelect = pParse->db->aLimit[SQLITE_LIMIT_COMPOUND_SELECT])>0
+        && cnt>mxSelect
+      ){
         sqlite3ErrorMsg(pParse, "too many terms in compound SELECT");
       }
     }
diff --git a/lib/libsqlite3/src/random.c b/lib/libsqlite3/src/random.c
index 145731051bb..a0db527f93c 100644
--- a/lib/libsqlite3/src/random.c
+++ b/lib/libsqlite3/src/random.c
@@ -53,11 +53,19 @@ void sqlite3_randomness(int N, void *pBuf){
 #endif
 
 #if SQLITE_THREADSAFE
-  sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_PRNG);
-  sqlite3_mutex_enter(mutex);
+  sqlite3_mutex *mutex;
+#endif
+
+#ifndef SQLITE_OMIT_AUTOINIT
+  if( sqlite3_initialize() ) return;
 #endif
 
-  if( N<=0 ){
+#if SQLITE_THREADSAFE
+  mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_PRNG);
+#endif
+
+  sqlite3_mutex_enter(mutex);
+  if( N<=0 || pBuf==0 ){
     wsdPrng.isInit = 0;
     sqlite3_mutex_leave(mutex);
     return;
diff --git a/lib/libsqlite3/tool/lemon.c b/lib/libsqlite3/tool/lemon.c
index 85e94f7007f..4ada425d693 100644
--- a/lib/libsqlite3/tool/lemon.c
+++ b/lib/libsqlite3/tool/lemon.c
@@ -1497,10 +1497,12 @@ int main(int argc, char **argv)
     {OPT_FLAG, "b", (char*)&basisflag, "Print only the basis in report."},
     {OPT_FLAG, "c", (char*)&compress, "Don't compress the action table."},
     {OPT_FSTR, "D", (char*)handle_D_option, "Define an %ifdef macro."},
-    {OPT_FSTR, "T", (char*)handle_T_option, "Specify a template file."},
+    {OPT_FSTR, "f", 0, "Ignored.  (Placeholder for -f compiler options.)"},
     {OPT_FLAG, "g", (char*)&rpflag, "Print grammar without actions."},
+    {OPT_FSTR, "I", 0, "Ignored.  (Placeholder for '-I' compiler options.)"},
     {OPT_FLAG, "m", (char*)&mhflag, "Output a makeheaders compatible file."},
     {OPT_FLAG, "l", (char*)&nolinenosflag, "Do not print #line statements."},
+    {OPT_FSTR, "O", 0, "Ignored.  (Placeholder for '-O' compiler options.)"},
     {OPT_FLAG, "p", (char*)&showPrecedenceConflict,
                     "Show conflicts resolved by precedence rules"},
     {OPT_FLAG, "q", (char*)&quiet, "(Quiet) Don't print the report file."},
@@ -1508,6 +1510,8 @@ int main(int argc, char **argv)
     {OPT_FLAG, "s", (char*)&statistics,
                                    "Print parser stats to standard output."},
     {OPT_FLAG, "x", (char*)&version, "Print the version number."},
+    {OPT_FSTR, "T", (char*)handle_T_option, "Specify a template file."},
+    {OPT_FSTR, "W", 0, "Ignored.  (Placeholder for '-W' compiler options.)"},
     {OPT_FLAG,0,0,0}
   };
   int i;
@@ -1812,6 +1816,8 @@ static int handleflags(int i, FILE *err)
       errline(i,1,err);
     }
     errcnt++;
+  }else if( op[j].arg==0 ){
+    /* Ignore this option */
   }else if( op[j].type==OPT_FLAG ){
     *((int*)op[j].arg) = v;
   }else if( op[j].type==OPT_FFLAG ){
@@ -2001,17 +2007,17 @@ void OptPrint(){
         break;
       case OPT_INT:
       case OPT_FINT:
-        fprintf(errstream,"  %s=<integer>%*s  %s\n",op[i].label,
+        fprintf(errstream,"  -%s<integer>%*s  %s\n",op[i].label,
           (int)(max-lemonStrlen(op[i].label)-9),"",op[i].message);
         break;
       case OPT_DBL:
       case OPT_FDBL:
-        fprintf(errstream,"  %s=<real>%*s  %s\n",op[i].label,
+        fprintf(errstream,"  -%s<real>%*s  %s\n",op[i].label,
           (int)(max-lemonStrlen(op[i].label)-6),"",op[i].message);
         break;
       case OPT_STR:
       case OPT_FSTR:
-        fprintf(errstream,"  %s=<string>%*s  %s\n",op[i].label,
+        fprintf(errstream,"  -%s<string>%*s  %s\n",op[i].label,
           (int)(max-lemonStrlen(op[i].label)-8),"",op[i].message);
         break;
     }
@@ -2436,7 +2442,7 @@ to follow the previous rule.");
       if( x[0]=='{' || x[0]=='\"' || isalnum(x[0]) ){
         const char *zOld, *zNew;
         char *zBuf, *z;
-        int nOld, n, nLine, nNew, nBack;
+        int nOld, n, nLine = 0, nNew, nBack;
         int addLineMacro;
         char zLine[50];
         zNew = x;
@@ -2635,7 +2641,7 @@ void Parse(struct lemon *gp)
   struct pstate ps;
   FILE *fp;
   char *filebuf;
-  int filesize;
+  unsigned int filesize;
   int lineno;
   int c;
   char *cp, *nextcp;
@@ -2769,7 +2775,7 @@ void Parse(struct lemon *gp)
     c = *cp;
     *cp = 0;                        /* Null terminate the token */
     parseonetoken(&ps);             /* Parse the token */
-    *cp = c;                        /* Restore the buffer */
+    *cp = (char)c;                  /* Restore the buffer */
     cp = nextcp;
   }
   free(filebuf);                    /* Release the buffer after parsing */
@@ -3392,7 +3398,7 @@ PRIVATE char *append_str(const char *zText, int n, int p1, int p2){
       zText++;
       n--;
     }else{
-      z[used++] = c;
+      z[used++] = (char)c;
     }
   }
   z[used] = 0;