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### C.8 Unit loading messages.

This section lists all messages that can occur when the compiler is loading a unit from disk into memory. Many of these mesages are informational messages.

Unitsearch: arg1
  When you use the -vt, the compiler tells you where it tries to find unit files.
PPU Loading arg1
  When the -vt switch is used, the compiler tells you what units it loads.
PPU Name: arg1
  When you use the -vu flag, the unit name is shown.
PPU Flags: arg1
  When you use the -vu flag, the unit flags are shown.
PPU Crc: arg1
  When you use the -vu flag, the unit CRC check is shown.
PPU Time: arg1
  When you use the -vu flag, the time the unit was compiled is shown.
PPU File too short
  The ppufile is too short, not all declarations are present.
PPU Invalid Header (no PPU at the begin)
  A unit file contains as the first three bytes the ascii codes of PPU
PPU Invalid Version arg1
  This unit file was compiled with a different version of the compiler, and cannot be read.
PPU is compiled for an other processor
  This unit file was compiled for a different processor type, and cannot be read
PPU is compiled for an other target
  This unit file was compiled for a different target, and cannot be read
PPU Source: arg1
  When you use the -vu flag, the unit CRC check is shown.
Writing arg1
  When you specify the -vu switch, the compiler will tell you where it writes the unit file.
Fatal: Can’t Write PPU-File
  An error occurred when writing the unit file.
Fatal: Error reading PPU-File
  This means that the unit file was corrupted, and contains invalid information. Recompilation will be necessary.
Fatal: unexpected end of PPU-File
  Unexpected end of file.
Fatal: Invalid PPU-File entry: arg1
  The unit the compiler is trying to read is corrupted, or generated with a newer version of the compiler.
Fatal: PPU Dbx count problem
  There is an inconsistency in the debugging information of the unit.
Error: Illegal unit name: arg1
  The name of the unit doesn’t match the file name.
Fatal: Too much units
  Free Pascal has a limit of 1024 units in a program. You can change this behavior by changing the maxunits constant in the files.pas file of the compiler, and recompiling the compiler.
Fatal: Circular unit reference between arg1 and arg2
  Two units are using each other in the interface part. This is only allowed in the implementation part. At least one unit must contain the other one in the implementation section.
Fatal: Can’t compile unit arg1, no sources available
  A unit was found that needs to be recompiled, but no sources are available.
Warning: Can’t recompile unit arg1, but found modifed include files
  A unit was found to have modified include files, but some source files were not found, so recompilation is impossible.
Fatal: Can’t find unit arg1
  You tried to use a unit of which the PPU file isn’t found by the compiler. Check your config files for the unit pathes
Warning: Unit arg1 was not found but arg2 exists
Fatal: Unit arg1 searched but arg2 found
  Dos truncation of 8 letters for unit PPU files may lead to problems when unit name is longer than 8 letters.
Warning: Compiling the system unit requires the -Us switch
  When recompiling the system unit (it needs special treatment), the -Us must be specified.
Fatal: There were arg1 errors compiling module, stopping
  When the compiler encounters a fatal error or too many errors in a module then it stops with this message.
Load from arg1 (arg2) unit arg3
  When you use the -vu flag, which unit is loaded from which unit is shown.
Recompiling arg1, checksum changed for arg2
Recompiling arg1, source found only
  When you use the -vu flag, these messages tell you why the current unit is recompiled.
Recompiling unit, static lib is older than ppufile
  When you use the -vu flag, the compiler warns if the static library of the unit are older than the unit file itself.
Recompiling unit, shared lib is older than ppufile
  When you use the -vu flag, the compiler warns if the shared library of the unit are older than the unit file itself.
Recompiling unit, obj and asm are older than ppufile
  When you use the -vu flag, the compiler warns if the assembler or object file of the unit are older than the unit file itself.
Recompiling unit, obj is older than asm
  When you use the -vu flag, the compiler warns if the assembler file of the unit is older than the object file of the unit.
Parsing interface of arg1
  When you use the -vu flag, the compiler warns that it starts parsing the interface part of the unit
Parsing implementation of arg1
  When you use the -vu flag, the compiler warns that it starts parsing the implementation part of the unit
Second load for unit arg1
  When you use the -vu flag, the compiler warns that it starts recompiling a unit for the second time. This can happend with interdepend units.
PPU Check file arg1 time arg2
  When you use the -vu flag, the compiler show the filename and date and time of the file which a recompile depends on
Hint: Conditional arg1 was not set at startup in last compilation of arg2
  when recompilation of an unit is required the compiler will check that the same conditionals are set for the recompiliation. The compiler has found a conditional that currently is defined, but was not used the last time the unit was compiled.
Hint: Conditional arg1 was set at startup in last compilation of arg2
  when recompilation of an unit is required the compiler will check that the same conditionals are set for the recompiliation. The compiler has found a conditional that was used the last time the unit was compiled, but the conditional is currently not defined.
Hint: File arg1 is newer than Release PPU file arg2

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