DEVELOPERS NOTE
    
  Tests
  
    perl Makefile.PL
    make
    make test
  
  Unit Tests
  
    make && perl -Mblib t/default/convert.t

  Cleanup
  
    make clean
    
  Create distribution
    
    perl Makefile.PL
    rm MANIFEST
    make manifest
    make disttest
    make dist

  SOLE TESTS

    SPVM solo test command

       # Normal run
       yacc/bison.sh && perl solo/solo_Makefile.PL --OPTIMIZE="-O0 -g" && make -f solo/Makefile && ./solo/work/myexe foo bar

       # Debug run
       yacc/bison.sh && perl solo/solo_Makefile.PL --OPTIMIZE="-O0 -g" --DEFINE=SPVM_DEBUG_ALLOC_MEMORY_COUNT && make -f solo/Makefile && ./solo/work/myexe foo bar

       # Debug run - Print AST, package information, operaion codes
       yacc/bison.sh && perl solo/solo_Makefile.PL --OPTIMIZE="-O0 -g" --DEFINE=SPVM_DEBUG_DUMP --DEFINE=SPVM_DEBUG_ALLOC_MEMORY_COUNT && make -f solo/Makefile && ./solo/work/myexe foo bar

       # Debug run - Print yacc result
       yacc/bison.sh && perl solo/solo_Makefile.PL --OPTIMIZE="-O0 -g" --DEFINE=SPVM_DEBUG_YACC && make -f solo/Makefile && ./solo/work/myexe foo bar
    
       # Cleanup
       make -f solo/Makefile clean

       # Normal run + show runtime info memory size
       yacc/bison.sh && perl solo/solo_Makefile.PL --OPTIMIZE="-O0 -g"  --DEFINE=SPVM_DEBUG_RUNTIME_INFO && make -f solo/Makefile && ./solo/work/myexe foo bar
    
    See batcktrace of core dump

      gdb solo/work/myexe core
      
      bt

      
    If core file is not output, set the following.
      
        ulimit -c unlimited

  PORTABILITY NOTE
  
    SPVM is run on various environments.
    Main compiler targets is gcc and clang.
    Main OS targets is Linux/Unix, Windows/MinGW, macOS.
    To keep maxmam portability in SPVM core, I have the following rule.
  
    - don't use realloc.
    - don't use global variables
    - don't use inline keyword
    - use -std=gnu99 always in core modules
    - use fgetc instead of getc for FreeBSD compile error
    - Don't use os error number(error.h defined values) outside of native subrsoutine.
    - Don't contain os dependency features(for example unistd.h, windows.h)
    - NOTE: In Windows/MinGW/Strawbery Perl, newline is always \x0A if mode is text mode
    - Automatically loaded module must not be native or precompile
      Currently, Byte, Short, Int, Long, Float, Double, Bool
    - Don't use temporary directory in SPVM module, for example, using File::Temp.
      Security risk is increased and, Windows dll file can't be removed by cleanuping temporary directory
    - Don't use feature_test_macros, for example,
      #define _XOPEN_SOURCE
      #define _POSIX_SOURCE
      #define _POSIX_C_SOURCE

  CODING GUIDE LINE
    - use int8_t, int16_t, int32_t, int64_t instead of byte, short, int, long, _Bool.
    - char is used for only character.
    - char[] is used for only string.
    - constant value is defined by enum { } syntax.
    - constant name is ,for example, SPVM_TYPE_C_FLAG_REF.
      all character is upper case or under score. need _C_ between package name and constant base name
    - fix all warnings before CPAN release
  
  UTILITIES
  
    Print config 
      
      # All config
      perl -MConfig -MData::Dumper -e 'local $Data::Dumper::Sortkeys = 1; print Dumper \%Config;'
      
      # ivsize
      perl -MConfig -MData::Dumper -e 'local $Data::Dumper::Sortkeys = 1; print Dumper \%Config;' | grep ivsize
      
      # myuname
      perl -MConfig -MData::Dumper -e 'local $Data::Dumper::Sortkeys = 1; print Dumper \%Config;' | grep myuname

      # make
      perl -MConfig -MData::Dumper -e 'local $Data::Dumper::Sortkeys = 1; print Dumper \%Config;' | grep make

      # dlext
      perl -MConfig -MData::Dumper -e 'local $Data::Dumper::Sortkeys = 1; print Dumper \%Config;' | grep dlext
  
    Get all keywords
    
      perl -n -e 'if (/strcmp\s*\(\s*symbol_name\s*,\s*"(.+?)"/) { print "$1\n" } ' lib/SPVM/Builder/src/spvm_toke.c
    
    Get the definition of syntax parsing
    
      perl -n -e 'if (/^(%token|%type|%right|%nonassoc|%left|[a-zA-Z]|\s+:|\s+\|)(.+)/) { my $line = "$1$2"; if ($line =~ /^[a-zA-Z]/) { print "\n"; } print "$line\n" } ' yacc/spvm_yacc.y
    
    Get SPVM::Builder module files
    
      find lib | grep Builder | grep '\.pm' | perl -p -e 's|lib/||' | sort

    Get SPVM source files
    
      find lib | grep Builder | grep -P '\.c$' | perl -p -e 's|lib/SPVM/Builder/src/||' | sort

    Get SPVM header files
    
      find lib | grep Builder | grep -P '\.h$' | perl -p -e 's|lib/SPVM/Builder/include/||' | sort
    
    Create compile error test module
    
      make && perl -Mblib blib/script/spvmgenlib --module-dir t/default/lib/SPVM TestCase::CompileError::Foo
    
    Create SPVM module for CPAN distribution
      
      ./spvmdist.sh Foo
