[master] c661cb725 build: Use vsc.am for varnish-counters(3) includes

[Dridi Boukelmoune]

commit c661cb7253b319f4dfd4d14114a6dfc2d4af6cfd
Author: Dridi Boukelmoune <dridi.boukelmoune at gmail.com>
Date:   Mon May 22 17:40:32 2023 +0200

    build: Use vsc.am for varnish-counters(3) includes
    
    With that we lose the ability to rebuild the manual from the doc/sphinx
    directory if the sources were modified, just like any other dependency
    on $(top_builddir) sources. This one is linked once and for all, but
    doesn't fit the link_srcdir target.

diff --git a/doc/sphinx/Makefile.am b/doc/sphinx/Makefile.am
index 96fc5fc1a..2dcdcd55f 100644
--- a/doc/sphinx/Makefile.am
+++ b/doc/sphinx/Makefile.am
@@ -85,22 +85,8 @@ include/params.rst: $(top_builddir)/bin/varnishd/varnishd
 	mv -f ${@}_ ${@}
 BUILT_SOURCES += include/params.rst
 
-COUNTERS = \
-	$(top_srcdir)/lib/libvsc/VSC_main.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_mgt.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_mempool.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_sma.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_smu.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_smf.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_vbe.vsc \
-	$(top_srcdir)/lib/libvsc/VSC_lck.vsc
-
-include/counters.rst: $(top_srcdir)/lib/libvsc/vsctool.py $(COUNTERS)
-	echo -n '' > ${@}_
-	for i in $(COUNTERS); do \
-		$(PYTHON) $(top_srcdir)/lib/libvsc/vsctool.py -r $$i >> ${@}_ ; \
-	done
-	mv -f ${@}_ ${@}
+include/counters.rst:
+	ln -s $(abs_top_builddir)/lib/libvsc/counters.rst $@
 BUILT_SOURCES += include/counters.rst
 
 include/varnishncsa_options.rst: $(top_builddir)/bin/varnishncsa/varnishncsa
diff --git a/lib/libvsc/Makefile.am b/lib/libvsc/Makefile.am
index 9f9ae0373..992b4d94c 100644
--- a/lib/libvsc/Makefile.am
+++ b/lib/libvsc/Makefile.am
@@ -22,3 +22,11 @@ libvsc_la_SOURCES = $(VSC_SRC)
 BUILT_SOURCES = $(VSC_GEN)
 
 dist_pkgdata_SCRIPTS = vsctool.py
+
+nodist_noinst_DATA = counters.rst
+
+counters.rst: $(VSC_RST)
+	$(AM_V_GEN)cat $(VSC_RST) >${@}_
+	@mv ${@}_ $@
+
+CLEANFILES = $(nodist_noinst_DATA)