exa: build man pages using XORG_MANPAGE_SECTIONS

Nothing requires the use of a C preprocessor
Using standard file extensions (.man) means no need for .gitignore
Use standard directory and makefile
Fix trailing whitespaces

Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Rémi Cardona <remi@gentoo.org>
Signed-off-by: Gaetan Nadon <memsize@videotron.ca>
Signed-off-by: Keith Packard <keithp@keithp.com>

configure.ac

@@ -2213,6 +2213,7 @@ hw/xfree86/doc/sgml/Makefile
 hw/xfree86/dri/Makefile
 hw/xfree86/dri2/Makefile
 hw/xfree86/exa/Makefile
+hw/xfree86/exa/man/Makefile
 hw/xfree86/fbdevhw/Makefile
 hw/xfree86/fbdevhw/man/Makefile
 hw/xfree86/i2c/Makefile

hw/xfree86/exa/.gitignore

@@ -1,2 +0,0 @@
-#		Add & Override for this directory and it's subdirectories
-exa.man

hw/xfree86/exa/Makefile.am

@@ -1,3 +1,5 @@
+SUBDIRS = man
+
 module_LTLIBRARIES = libexa.la
 
 libexa_la_LDFLAGS = -avoid-version
@@ -14,15 +16,3 @@ libexa_la_SOURCES = \
 
 libexa_la_LIBADD = \
 	../../../exa/libexa.la
-
-include $(top_srcdir)/cpprules.in
-
-drivermandir = $(DRIVER_MAN_DIR)
-driverman_DATA = exa.$(DRIVER_MAN_SUFFIX)
-CLEANFILES = $(driverman_DATA) exa.man
-
-exa.$(DRIVER_MAN_SUFFIX): exa.man
-	-$(AM_V_at)rm -f exa.$(DRIVER_MAN_SUFFIX)
-	$(AM_V_at)$(LN_S) exa.man exa.$(DRIVER_MAN_SUFFIX)
-
-EXTRA_DIST = exa.man.pre

hw/xfree86/exa/man/Makefile.am

@@ -0,0 +1,11 @@
+drivermandir = $(DRIVER_MAN_DIR)
+driverman_PRE = exa.man
+driverman_DATA = $(driverman_PRE:man=$(DRIVER_MAN_SUFFIX))
+
+EXTRA_DIST = $(driverman_PRE)
+CLEANFILES = $(driverman_DATA)
+SUFFIXES = .$(DRIVER_MAN_SUFFIX) .man
+
+# String replacements in MAN_SUBSTS now come from xorg-macros.m4 via configure
+.man.$(DRIVER_MAN_SUFFIX):
+	$(AM_V_GEN)$(SED) $(MAN_SUBSTS) < $< > $@