On 02-Feb-2024 08:30, Christian Brabandt wrote:
patch 9.1.0071: Need a diff() Vim script function

Commit:https://github.com/vim/vim/commit/fa37835b8c0ed0f83952978fca4c332335ca7c46
Author: Yegappan Lakshmanan<[email protected]>
Date:   Thu Feb 1 22:05:27 2024 +0100

     patch 9.1.0071: Need a diff() Vim script function
Problem: Need a diff() Vim script function
     Solution: Add the diff() Vim script function using the
               xdiff internal diff library, add support for
               "unified" and "indices" mode.
               (Yegappan Lakshmanan)
fixes: #4241
     closes: #12321
Signed-off-by: Yegappan Lakshmanan<[email protected]>
     Signed-off-by: Christian Brabandt<[email protected]>


After this patch, msys2 (clang x64 17.0.6) gives these errors if FEAT_DIFF is disabled:
<snip>
clang -c -I. -Iproto -DWIN32 -DWINVER=0x0A00 -D_WIN32_WINNT=0x0A00 -DHAVE_PATHDEF -DFEAT_NORMAL -DHAVE_STDINT_H -D__USE_MINGW_ANSI_STDIO -pipe -Wall -O3 -fomit-frame-pointer -fpie -fPIE -DFEAT_GUI_MSWIN -DFEAT_CLIPBOARD diff.c -o gobjx86-64/diff.o diff.c:3499:25: error: use of undeclared identifier 'DIFF_INTERNAL_OUTPUT_UNIFIED'
 3499 |             *diff_output_fmt = DIFF_INTERNAL_OUTPUT_UNIFIED;
      |                                ^
diff.c:3501:25: error: use of undeclared identifier 'DIFF_INTERNAL_OUTPUT_INDICES'
 3501 |             *diff_output_fmt = DIFF_INTERNAL_OUTPUT_INDICES;
      |                                ^
diff.c:3510:15: error: use of undeclared identifier 'DIFF_IBLANK'
 3510 |         *diffopts |= DIFF_IBLANK;
      |                      ^
diff.c:3512:15: error: use of undeclared identifier 'DIFF_ICASE'
 3512 |         *diffopts |= DIFF_ICASE;
      |                      ^
diff.c:3514:15: error: use of undeclared identifier 'DIFF_IWHITE'
 3514 |         *diffopts |= DIFF_IWHITE;
      |                      ^
diff.c:3516:15: error: use of undeclared identifier 'DIFF_IWHITEALL'
 3516 |         *diffopts |= DIFF_IWHITEALL;
      |                      ^
diff.c:3518:15: error: use of undeclared identifier 'DIFF_IWHITEEOL'
 3518 |         *diffopts |= DIFF_IWHITEEOL;
      |                      ^
diff.c:3530:27: error: unknown type name 'diffin_T'
 3530 | list_to_diffin(list_T *l, diffin_T *din, int icase)
      |                           ^
diff.c:3563:23: error: unknown type name 'diffhunk_T'
 3563 | get_diff_hunk_indices(diffhunk_T *hunk)
      |                       ^
9 errors generated.
make: *** [Make_cyg_ming.mak:1214: gobjx86-64/diff.o] Error 1
</snip>

Sorry, I'm not sure what the correct fix is.

Cheers
John

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