git: 18a9f83630a7 - main - bsd.man.mk: Add checkmanlinks target

The branch main has been updated by des:

URL: https://cgit.FreeBSD.org/src/commit/?id=18a9f83630a7d4612066bb690bcec0437c0e2e72

commit 18a9f83630a7d4612066bb690bcec0437c0e2e72
Author:     Dag-Erling Smørgrav <des@FreeBSD.org>
AuthorDate: 2025-08-12 12:54:08 +0000
Commit:     Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2025-08-12 12:55:01 +0000

    bsd.man.mk: Add checkmanlinks target
    
    This target checks that every page mentioned in MLINKS exists and that
    every link corresponds to a (possibly commented-out) name entry in the
    page it links to.
    
    MFC after:      1 week
    Reviewed by:    bcr
    Differential Revision:  https://reviews.freebsd.org/D51862
---
 share/mk/bsd.man.mk | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/share/mk/bsd.man.mk b/share/mk/bsd.man.mk
index f44048b4e453..66155d1b4cd9 100644
--- a/share/mk/bsd.man.mk
+++ b/share/mk/bsd.man.mk
@@ -288,11 +288,11 @@ manlinksinstall-${__group}:
 .endif
 .endfor
 
-manlint:
+manlint: .PHONY checkmanlinks
 .if defined(${__group}) && !empty(${__group})
 .for __page in ${${__group}}
 manlint: ${__page:S/:/\:/g}lint
-${__page:S/:/\:/g}lint: ${__page}
+${__page:S/:/\:/g}lint: .PHONY ${__page}
 .if defined(MANFILTER)
 	${MANFILTER} < ${.ALLSRC} | ${MANDOC_CMD} -Tlint
 .else
@@ -301,4 +301,18 @@ ${__page:S/:/\:/g}lint: ${__page}
 .endfor
 .endif
 
+checkmanlinks: .PHONY
+.if defined(${__group}LINKS)
+checkmanlinks: checkmanlinks-${__group}
+checkmanlinks-${__group}: .PHONY
+.for __page __link in ${${__group}LINKS}
+checkmanlinks-${__group}: checkmanlinks-${__group}-${__link}
+checkmanlinks-${__group}-${__link}: .PHONY ${__page}
+	@if ! egrep -q "^(\.\\\\\" )?\.Nm ${__link:R}( ,)?$$" ${.ALLSRC}; then \
+		echo "${__group}LINKS: '.Nm ${__link:R}' not found in ${__page}"; \
+		exit 1; \
+	fi >&2
+.endfor # __page __link in ${${__group}LINKS}
+.endif # defined(${__group}LINKS)
+
 .endfor	# __group in ${MANGROUPS}