X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/2aee48d6f2a6526fffe18cd619fde9693f400034..74c3d81c6581448c78c13dd33e2283fad8d04380:/doc/doc-docbook/Makefile

diff --git a/doc/doc-docbook/Makefile b/doc/doc-docbook/Makefile
index 07eb322fa..fb3db4b96 100644
--- a/doc/doc-docbook/Makefile
+++ b/doc/doc-docbook/Makefile
@@ -1,17 +1,21 @@
 # Make file for Exim documentation from xfpt source.
+# Copyright (c) The Exim Maintainers 2020 - 2021
+export LC_ALL=C
 
 notarget:;    @echo "** You must specify a target, in the form x.y, where x is 'filter', 'spec',"
-	      @echo "** or 'test', and y is 'xml', 'fo', 'ps', 'pdf', 'html', 'txt', or 'info'."
-	      @echo "** One other possible target is 'exim.8'".
+	      @echo "** or 'test', and y is 'xml', 'fo', 'ps', 'pdf', 'txt', or 'info'."
+	      @echo "** One other possible targets 'exim.8', 'spec.utf8'".
 	      exit 1
 
+# html used to be supported, but is not here since 50023e0551 (2010).
+# The website build script seems to handle it.
 
 ############################# EVERYTHING ###############################
 #
 # Generate all the documentation files...
 #
 ## removed info files as I cannot generate them -  spec.info filter.info
-## removed html files as superceded by new website code
+## removed html files as superseded by new website code
 everything:		spec.pdf 	spec.ps  	spec.txt \
 				filter.pdf 	filter.ps filter.txt \
 				exim.8
@@ -23,18 +27,17 @@ exim.8:       spec.xml x2man
 
 ########################################################################
 
-.PHONY: local_params
-local_params:
-	echo .macro version > $@
-	echo $(EXIM_VER)	>> $@
-	echo .endmacro		>> $@
-	echo .macro fulldate	>> $@
-	date "+%d %b %Y"	>> $@
-	echo .endmacro		>> $@
-	echo .macro year	>> $@
-	date "+%Y"		>> $@
-	echo .endmacro		>> $@
-
+# .PHONY doesn't work here, because it forces a rebuild of all dependent
+# targets, always. It sets the internal timestamp of its target to
+# now().
+# But it may happen that local_params does not change
+FORCE:
+local_params: FORCE GenLocalParams
+	@set -e; \
+	trap 'rm -f $$tmp' EXIT; \
+	tmp=`mktemp`; \
+	./GenLocalParams $$tmp; \
+	cmp -s $@ $$tmp || mv -f $$tmp $@
 
 ############################### FILTER #################################
 
@@ -97,7 +100,8 @@ filter.txt:   filter-txt.xml Tidytxt MyStyle-txt-html.xsl MyStyle-html.xsl \
                 MyStyle.xsl
 	      /bin/rm -rf filter-txt.html
 	      xmlto -x MyStyle-txt-html.xsl html-nochunks filter-txt.xml
-	      w3m -dump filter-txt.html | ./Tidytxt >filter.txt
+	      command -v w3m >/dev/null
+	      LC_ALL=C w3m -dump filter-txt.html | ./Tidytxt >filter.txt
 	      ./SanityTestText filter.txt
 
 # I have not found a way of making docbook2texi write its output anywhere
@@ -116,7 +120,7 @@ filter.info:  filter-info.xml
 
 ################################ SPEC ##################################
 
-spec.xml:      local_params spec.xfpt
+spec.xml:      spec.xfpt local_params
 	       xfpt spec.xfpt
 
 spec-pr.xml:   spec.xml Pre-xml
@@ -174,13 +178,23 @@ spec.pdf: sdop-spec.pdf
 ###
 ###
 
-spec.txt:     spec-txt.xml Tidytxt MyStyle-txt-html.xsl MyStyle-html.xsl \
-                MyStyle.xsl
-	      /bin/rm -rf spec-txt.html
+spec-txt.html:     spec-txt.xml \
+		MyStyle-txt-html.xsl MyStyle-html.xsl MyStyle.xsl
 	      xmlto -x MyStyle-txt-html.xsl html-nochunks spec-txt.xml
-	      w3m -dump spec-txt.html | ./Tidytxt >spec.txt
+
+spec.utf8:	spec-txt.html Tidytxt
+		@grep -iq 'LC_CTYPE=.*utf-\?8' local_params || { \
+			echo 'your current locale does not support UTF-8' >&2; \
+			false; }
+		command -v w3m >/dev/null
+		w3m -dump spec-txt.html | ./Tidytxt -utf8 >$@
+
+spec.txt: spec-txt.html Tidytxt
+	      command -v w3m >/dev/null
+	      LC_ALL=C w3m -dump spec-txt.html | ./Tidytxt >$@
 	      ./SanityTestText spec.txt
 
+
 # I have not found a way of making docbook2texi write its output anywhere
 # other than the file name that it makes up. The --to-stdout option does not
 # work.
@@ -263,6 +277,7 @@ test.txt:     test-txt.xml Tidytxt MyStyle-txt-html.xsl MyStyle-html.xsl \
                 MyStyle.xsl
 	      /bin/rm -rf test-txt.html
 	      xmlto -x MyStyle-txt-html.xsl html-nochunks test-txt.xml
+	      command -v w3m >/dev/null
 	      w3m -dump test-txt.html | Tidytxt >test.txt
 
 # I have not found a way of making docbook2texi write its output anywhere