If the "configure" script does not work for you, then you might
have to compile manually.  Fortunately, this is easy to do.  First
download the preprocessed source code from
http://www.sqlite.org/sqlite_source.zip.
This archive contains a set of C source and header files that
are ready to be passed to a C compiler.  To build the library,
just compile all of the files.

Note that the files "shell.c" and "tclsqlite.c" are special and
do not belong in the SQLite library proper.  "shell.c" is used
to build the "sqlite" shell program and "tclsqlite.c" is the
TCL bindings for SQLite.  You may want to omit both of these
files when you build the library.

For example, I was able to compile SQLite for HPUX as follows:

  unzip sqlite_source.zip
  rm tclsqlite.c
  for i in *.c; do c89 -O -c $i; done
  rm shell.o
  ar cr libsqlite.a *.o
  ranlib libsqlite.a
  c89 -o sqlite shell.c libsqlite.a

====

To get it compiling on DJGPP (DOS) you need to patch src/os.c with the following (unified diff):

	--- ../temp/sqlite/src/os.c	2002-10-20 20:16:50.000000000 +0000
	+++ src/os.c	2002-12-24 18:31:16.000000000 +0000
	@@ -27,6 +27,10 @@
	 # include <winbase.h>
	 #endif
	 
	+#if (!defined __DJGPP__) && (!defined O_BINARY)
	+#define O_BINARY 0
	+#endif
	+
	 /*
	 ** Macros for performance tracing.  Normally turned off
	 */
	@@ -232,9 +236,9 @@
	   int *pReadonly
	 ){
	 #if OS_UNIX
	-  id->fd = open(zFilename, O_RDWR|O_CREAT, 0644);
	+  id->fd = open(zFilename, O_RDWR|O_CREAT|O_BINARY, 0644);
	   if( id->fd<0 ){
	-    id->fd = open(zFilename, O_RDONLY);
	+    id->fd = open(zFilename, O_RDONLY|O_BINARY);
	     if( id->fd<0 ){
	       return SQLITE_CANTOPEN; 
	     }
	@@ -306,7 +310,7 @@
	 #ifndef O_NOFOLLOW
	 # define O_NOFOLLOW 0
	 #endif
	-  id->fd = open(zFilename, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW, 0600);
	+  id->fd = open(zFilename, O_RDWR|O_CREAT|O_EXCL|O_NOFOLLOW|O_BINARY, 0600);
	   if( id->fd<0 ){
	     return SQLITE_CANTOPEN;
	   }
	@@ -359,7 +363,7 @@
	 */
	 int sqliteOsOpenReadOnly(const char *zFilename, OsFile *id){
	 #if OS_UNIX
	-  id->fd = open(zFilename, O_RDONLY);
	+  id->fd = open(zFilename, O_RDONLY|O_BINARY);
	   if( id->fd<0 ){
	     return SQLITE_CANTOPEN;
	   }
	@@ -682,9 +686,13 @@
	     lock.l_type = F_RDLCK;
	     lock.l_whence = SEEK_SET;
	     lock.l_start = lock.l_len = 0L;
	+#ifdef __DJGPP__
	+    {
	+#else
	     if( fcntl(id->fd, F_SETLK, &lock)!=0 ){
	       rc = SQLITE_BUSY;
	     }else{
	+#endif
	       rc = SQLITE_OK;
	       id->pLock->cnt = 1;
	       id->locked = 1;
	@@ -736,9 +744,13 @@
	     lock.l_type = F_WRLCK;
	     lock.l_whence = SEEK_SET;
	     lock.l_start = lock.l_len = 0L;
	+#ifdef __DJGPP__
	+    {
	+#else
	     if( fcntl(id->fd, F_SETLK, &lock)!=0 ){
	       rc = SQLITE_BUSY;
	     }else{
	+#endif
	       rc = SQLITE_OK;
	       id->pLock->cnt = -1;
	       id->locked = 1;
	@@ -798,9 +810,13 @@
	     lock.l_type = F_UNLCK;
	     lock.l_whence = SEEK_SET;
	     lock.l_start = lock.l_len = 0L;
	+#ifdef __DJGPP__
	+    {
	+#else
	     if( fcntl(id->fd, F_SETLK, &lock)!=0 ){
	       rc = SQLITE_BUSY;
	     }else{
	+#endif
	       rc = SQLITE_OK;
	       id->pLock->cnt = 0;
	     }

This is needed, because files need to be explicitely opened in binary mode and the check for locking always fails in DJGPP.

DJGPP: http://www.delorie.com/djgpp

====

*MSVC and SQLite DLL*

Creation of an import library from the sqlitedll.zip
(http://www.sqlite.org/sqlitedll.zip) for MS Visual C++
is achieved by the following command:

LIB /DEF:sqlite.def

This makes the files sqlite.lib and sqlite.exp files.
The sqlite.lib can then be used to link your programs
against the SQLite DLL.



=====


*Crosscompile linux x86 -> linux arm*

1. Install skiff toolchain or similar, make shure you have arm-linux-gcc in your PATH.

2. Unpack sqlite sources and create a directory _sqlite-arm_ in the same dir. 

3. Edit _configure_ script in the sqlite dir and comment following lines out as shown - have fun finding them ;-)

  if test "$cross_compiling" = "yes"; then
   { { echo "$as_me:12710: error: unable to find a compiler for building build tools" >&5
   echo "$as_me: error: unable to find a compiler for building build tools" >&2;}
   { (exit 1); exit 1; }; }
  fi

  . . .

  else
    test "$cross_compiling" = yes &&
    { { echo "$as_me:13264: error: cannot check for file existence when cross compiling" >&5
    echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
    { (exit 1); exit 1; }; }

  . . .

  else
   test "$cross_compiling" = yes &&
   { { echo "$as_me:13464: error: cannot check for file existence when cross compiling" >&5
  echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
   { (exit 1); exit 1; }; }

  . . .

  else
   test "$cross_compiling" = yes &&
   { { echo "$as_me:13490: error: cannot check for file existence when cross compiling" >&5
  echo "$as_me: error: cannot check for file existence when cross compiling" >&2;}
   { (exit 1); exit 1; }; }


4. Save the configure script, change into the build directory you created and call the edited configure script from the sqlite directory by using the following option:

../sqlite/configure --host=arm-linux

5. 
After that configure should have created a Makefile and a libtool script in your build directory.
Open the Makefile using your favorite text editor and edit the following line:


BCC = arm-linux-gcc -g -O2

to see:

BCC = gcc -g -O2


6. run _make_
Now you should find a “.libs” directory in your build directory containing sqlite shared object files, like libsqlite.so.

Source (somwhat altered): http://www.kecher.de/howtos/SQLite-JDBC-Howto.html

=====
*Win32 recompile with mingw32/msys*


1. Download mingw from http://prdownloads.sourceforge.net/mingw/MinGW-2.0.0-3.exe

2. Download msys from http://prdownloads.sourceforge.net/mingw/MSYS-1.0.8.exe

3. Install mingw to c:\mingw and msys to c:\mingw

4. Download the FULL sqlite source (http://www.sqlite.org/sqlite-2.8.0.tar.gz)
   and extract it into c:\mingw\sqlite

5. start the msys.bat and cd to /home/drh/sqlite and ./configure with mingw/msys

6. edit src/os.h, go to ~ line 90 (behind the #ifndef OS_UNIX block) and add

   #define OS_WIN 1
   #define OS_MAC 0
   #define OS_UNIX 0



to the source to force the os type. I don't know why but the os type isn't guessed right and redefined in the os.h... Whatever, force it ;) The defines from the makefile don't work.

7. call mingw32-make to compile! make isn't used anymore (see http://www.mingw.org/mingwfaq.shtml#faq-mingw32-make.exe)


8. create a file called sqlite.def which contains

   EXPORTS
   sqlite_open
   sqlite_close
   sqlite_exec
   sqlite_last_insert_rowid
   sqlite_error_string
   sqlite_interrupt
   sqlite_complete
   sqlite_busy_handler
   sqlite_busy_timeout
   sqlite_get_table
   sqlite_free_table
   sqlite_mprintf
   sqlite_vmprintf
   sqlite_exec_printf
   sqlite_exec_vprintf
   sqlite_get_table_printf
   sqlite_get_table_vprintf
   sqlite_freemem
   sqlite_libversion
   sqlite_libencoding
   sqlite_changes
   sqlite_create_function
   sqlite_create_aggregate
   sqlite_function_type
   sqlite_user_data
   sqlite_aggregate_context
   sqlite_aggregate_count
   sqlite_set_result_string
   sqlite_set_result_int
   sqlite_set_result_double
   sqlite_set_result_error
   sqliteMalloc
   sqliteFree
   sqliteRealloc
   sqlite_set_authorizer
   sqlite_trace
   sqlite_compile
   sqlite_step
   sqlite_finalize

9. dllwrap --dllname sqlite.dll --def sqlite.def *.o
(or if this doesn't work, dllwrap --def sqlite.def -v --export-all --driver-name gcc --dlltool-name dlltool --as as --target i386-mingw32 -dllname sqlite.dll -lmsvcrt *.o)

10. strip sqlite.dll

11. Ready.