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- Please read the generic README file first. Note in particular:
-
- copy gzip.exe to gunzip.exe and zcat.exe, or use "gzip -d" to decompress.
- gzip386.exe runs much faster but only on 386 and above; it is compiled with
- djgpp 1.10 available in directory omnigate.clarkson.edu:/pub/msdos/djgpp.
-
- Read also gzip.doc, and in particular the description of the -N option
- which is very useful for MSDOS to restore the original file names that
- have been truncated. You can set it by default by adding
- set GZIP=-N
- in your autoexec.bat file.
-
- gzip386.exe includes the djgpp DOS extender (go32.exe) taken from
- djdev110.zip. If you already have djgpp 1.10 or later, you can remove
- go32.exe to get a smaller executable using:
- exe2aout gzip386.exe
- aout2exe gzip386
- del gzip386
-
- If you get the error message "DMPI: Not enough memory", you are using a
- memory manager which allocates physical memory immediately instead of
- allocating on demand when pages are used for the firt time. This problem
- occurs only when using DMPI. (Try under plain DOS without loading any memory
- manager in config.sys.) This problem will be fixed in future versions of
- djgpp using the COFF object format instead of a.out. (In the a.out format,
- the data segment is loaded at virtual address 0x400000 and the memory manager
- thinks that gzip requires more than 4 megs of memory.)
-
- With gzip386.exe, you may have to set the TZ environment variable to
- get correct timestamps in the compressed files. For example in France
- I must set:
- set TZ=MET-1
- The 16 bit version always uses local time.
-
- For other problems related to DJGPP, read the documentation provided
- in djdev110.zip. If a problem occurs with gzip386.exe, check first
- if it occurs also with gzip.exe before reporting it.
-
- The two programs gzip.exe and gzip386.exe give different compression ratios
- because the 16 bit version (gzip.exe) is compiled with -DSMALL_MEM to
- reduce memory usage. When compiled without this flag, all versions of
- gzip give exactly the same compression ratio. The 386 version runs faster
- under plain DOS without any memory manager than when using DMPI.
-
- Please send comments and bug reports to Jean-loup Gailly <jloup@chorus.fr>
- or to bug-gnu-utils@prep.ai.mit.edu.
-