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* all: remove need for `-fcommon`Dan Cross2025-07-252-5/+11
| | | | | | | | | | Use `extern` where appropriate so that we can remove `-fcommon` on macOS and others. On macOS, `-fcommon` generates a number of linker warnings. I've tested building on macOS, Linux, FreeBSD, NetBSD, OpenBSD and illumos. I am not in a position to test on AIX or other more esoteric platforms, however.
* diff: rename class to fix AIXRuss Cox2020-05-181-0/+3
| | | | math.h defines a function named class on AIX.
* Trivial changes: whitespace and modes.Dan Cross2020-01-103-15/+15
| | | | | | | | | Remote whitespace at the ends of lines. Remove blank lines from the ends of files. Change modes on source files so that they are not executable. Signed-off-by: Dan Cross <cross@gajendra.net>
* diff: continue after i/o errors when diffing many filesRuss Cox2007-11-052-5/+13
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* Use gcc -ansi -pedantic in 9c. Fix many non-C89-isms.rsc2006-04-012-2/+2
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* NetBSD-macppc ctype needs uchars.rsc2005-09-091-3/+3
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* use more distinguishable +/-rsc2005-07-131-2/+2
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* update usagersc2005-01-291-1/+1
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* add diff -arsc2005-01-292-13/+30
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* add -c optionrsc2005-01-263-1/+82
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* better cleanup of tmp filesrsc2005-01-111-6/+8
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* Goodbye SHORTLIBrsc2005-01-041-1/+0
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* clean up when finished.rsc2004-04-191-1/+0
| | | | don't set PLAN9
* Today's changes.rsc2004-03-252-0/+4
| | | | More changes.
* Various tweaks.rsc2004-02-291-1/+1
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* Small tweaks to make things build again.rsc2004-02-291-1/+1
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* Make things build on FreeBSD again.rsc2003-11-231-2/+2
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* the one true diff.rsc2003-11-236-0/+1120
at least it can handle "diff file1 file2 dir".