doc: fix the configuration path

Use a CONFDIR variable to show the configured sysconf path in the
generated documentations (html, man pages etc).

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1644985Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181126105125.30973-1-marcandre.lureau@redhat.com>
Signed-off-by: NLaurent Vivier <laurent@vivier.eu>

Makefile

@@ -899,11 +899,14 @@ ui/shader.o: $(SRC_PATH)/ui/shader.c \
 MAKEINFO=makeinfo
 MAKEINFOINCLUDES= -I docs -I $(<D) -I $(@D)
 MAKEINFOFLAGS=--no-split --number-sections $(MAKEINFOINCLUDES)
-TEXI2PODFLAGS=$(MAKEINFOINCLUDES) "-DVERSION=$(VERSION)"
+TEXI2PODFLAGS=$(MAKEINFOINCLUDES) -DVERSION="$(VERSION)" -DCONFDIR="$(qemu_confdir)"
 TEXI2PDFFLAGS=$(if $(V),,--quiet) -I $(SRC_PATH) $(MAKEINFOINCLUDES)
 
-docs/version.texi: $(SRC_PATH)/VERSION
-	$(call quiet-command,echo "@set VERSION $(VERSION)" > $@,"GEN","$@")
+docs/version.texi: $(SRC_PATH)/VERSION config-host.mak
+	$(call quiet-command,(\
+		echo "@set VERSION $(VERSION)" && \
+		echo "@set CONFDIR $(qemu_confdir)" \
+	)> $@,"GEN","$@")
 
 %.html: %.texi docs/version.texi
 	$(call quiet-command,LC_ALL=C $(MAKEINFO) $(MAKEINFOFLAGS) --no-headers \

qemu-ga.texi

@@ -30,7 +30,7 @@ set user's password
 @end itemize
 
 qemu-ga will read a system configuration file on startup (located at
-@file{/etc/qemu/qemu-ga.conf} by default), then parse remaining
+@file{@value{CONFDIR}/qemu-ga.conf} by default), then parse remaining
 configuration options on the command line. For the same key, the last
 option wins, but the lists accumulate (see below for configuration
 file format).
@@ -58,7 +58,7 @@ file format).
   Enable fsfreeze hook. Accepts an optional argument that specifies
   script to run on freeze/thaw. Script will be called with
   'freeze'/'thaw' arguments accordingly (default is
-  @samp{/etc/qemu/fsfreeze-hook}). If using -F with an argument, do
+  @samp{@value{CONFDIR}/fsfreeze-hook}). If using -F with an argument, do
   not follow -F with a space (for example:
   @samp{-F/var/run/fsfreezehook.sh}).