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install: Bump compare size limit (128MB) to support large binaries

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Preserve metadata and prevent redundant disk writes during builds with
the install's -C (compare) flag.

The previous historical comparison limit of 16MB is insufficient for
modern toolchains, frequently choked or bypassed by a large base
components like LLVM/Clang, kernels, Rust apps, and large runtime
libraries.

By leaving matching files alone, install keeps their modification timestamps
intact. make(1) safely ignores those files on subsequent runs.

Base examples: 15.0 amd64 GENERIC kernel - 28MB, clang - 105MB, lldb - 97MB, etc.

Reviewed by:    glebius
Approved by:    glebius (mentor)
Obtained from:  Fudo Security
MFC after:      2 weeks
Sponsored by:   Fudo Security
Differential Revision:	https://reviews.freebsd.org/D57271
This commit is contained in:
Aleksandr Rybalko
2026-05-27 15:07:47 +03:00
parent 97cad013a5
commit 5a8e0e03ae
1 changed files with 1 additions and 1 deletions
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usr.bin/xinstall/xinstall.c
+1 -1
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@@ -88,7 +88,7 @@
#define HAVE_STRUCT_STAT_ST_FLAGS 0
#endif
#define MAX_CMP_SIZE (16 * 1024 * 1024)
#define MAX_CMP_SIZE (128 * 1024 * 1024)
#define LN_ABSOLUTE 0x01
#define LN_RELATIVE 0x02