[build]: Fix code style nits in Automake files.

* doc/doc.am: Put spaces around (Auto)make variable assignments, for
  consistency with the rest of this .am file, and our others.

* font/devpdf/devpdf.am (font/devpdf/build_font_files): Use shell '>'
  operator instead of touch(1).

* font/devhtml/devhtml.am (font/devhtml/DESC):
* font/devps/devps.am (font/devps/DESC): Construct target in temporary
  file, since doing so is a multi-step process, moving it to the target
  name when it is complete and usable by dependencies.

Also fix indentation and trailing whitespace nits.

6 files changed, 33 insertions, 16 deletions

diff --git a/ChangeLog b/ChangeLog
index 710edfd05..07acccc82 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,17 @@
+2022-04-30  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+	[build]: Fix code style nits in Automake files.
+
+	* doc/doc.am: Put spaces around (Auto)make variable assignments,
+	for consistency with the rest of this .am file, and our others.
+	* font/devpdf/devpdf.am (font/devpdf/build_font_files): Use
+	shell '>' operator instead of touch(1).
+	* font/devhtml/devhtml.am (font/devhtml/DESC):
+	* font/devps/devps.am (font/devps/DESC): Construct target in
+	temporary file, since doing so is a multi-step process, moving
+	it to the target name when it is complete and usable by
+	dependencies.
+
 2022-04-29  G. Branden Robinson <g.branden.robinson@gmail.com>
 
 	* src/preproc/refer/refer.cpp (main): When complaining of
diff --git a/doc/doc.am b/doc/doc.am
index 6a9ea1874..8f064c1bf 100644
--- a/doc/doc.am
+++ b/doc/doc.am
@@ -33,21 +33,21 @@ DOC_SED = $(SED) \
 # It includes flags to locate its tmac and device/font description
 # directories and to produce verbose diagnostics in the event of syntax
 # or formatting problems.
-DOC_GROFF=\
+DOC_GROFF = \
   GROFF_COMMAND_PREFIX= \
   GROFF_BIN_PATH="$(GROFF_BIN_PATH)" \
   $(GROFFBIN) -M $(doc_srcdir) $(MFLAG) $(FFLAG) -ww -b
 
 # This image file is used by several documents in the groff source tree.
-DOC_GNU_EPS=doc/gnu.eps
+DOC_GNU_EPS = doc/gnu.eps
 
 # Other doc, installed in $(docdir)
 # Files located in the source tree
-DOCFILES_INST= \
+DOCFILES_INST = \
   doc/me-revisions \
   doc/ms.ms \
   doc/pic.ms
-DOCFILES_NOINST= \
+DOCFILES_NOINST = \
   doc/meintro.me.in \
   doc/meintro_fr.me.in \
   doc/meref.me.in
diff --git a/font/devhtml/devhtml.am b/font/devhtml/devhtml.am
index d8f208821..49194ddb7 100644
--- a/font/devhtml/devhtml.am
+++ b/font/devhtml/devhtml.am
@@ -44,13 +44,15 @@ $(DEVHTMLFONTSFILES): $(devhtml_srcdir)/R.proto
 	$(AM_V_GEN)$(MKDIR_P) `dirname $@` \
 	&& $(RM) $@ \
 	&& $(SHELL) $(GENFONTSSH) $(devhtml_srcdir)/R.proto \
-	     $(DEVHTMLRES) $(DEVHTMLCPI) `basename $@` > $@
+	  $(DEVHTMLRES) $(DEVHTMLCPI) `basename $@` >$@
 
 font/devhtml/DESC: $(devhtml_srcdir)/DESC.proto
 	$(AM_V_GEN)$(MKDIR_P) `dirname $@` \
 	&& $(SHELL) $(GENDESCSH) $(devhtml_srcdir)/DESC.proto \
-	     $(DEVHTMLRES) $(DEVHTMLCPI) $(DEVHTMLLPI) $(DEVHTMLFONTS) > $@ \
-	&& echo "image_generator $(GHOSTSCRIPT)" >> $@
+	  $(DEVHTMLRES) $(DEVHTMLCPI) $(DEVHTMLLPI) $(DEVHTMLFONTS) \
+	  > $@.tmp \
+	&& echo "image_generator $(GHOSTSCRIPT)" >>$@.tmp \
+	&& mv $@.tmp $@
 
 
 # Local Variables:
diff --git a/font/devpdf/devpdf.am b/font/devpdf/devpdf.am
index 0c1e2a4a2..e1bce488d 100644
--- a/font/devpdf/devpdf.am
+++ b/font/devpdf/devpdf.am
@@ -126,7 +126,7 @@ font/devpdf/build_font_files: afmtodit font/devpdf/DESC \
 	       $(abs_top_builddir)/font/devpdf \
 	       '$(abs_top_srcdir)/font/devps : $(abs_top_builddir)/font/devps' \
 	       >> $(top_builddir)/font/devpdf/download \
-	&& touch $@
+	&& >$@
 
 mostlyclean-local: mostlyclean_devpdf_extra
 mostlyclean_devpdf_extra:
diff --git a/font/devps/devps.am b/font/devps/devps.am
index 09a452fe3..dbeafba39 100644
--- a/font/devps/devps.am
+++ b/font/devps/devps.am
@@ -69,7 +69,7 @@ DEVPSFONTFILES_GENERATED = \
   font/devps/zapfdr.pfa \
   font/devps/symbolsl.pfa
 devpsfontdir = $(fontdir)/devps
-dist_devpsfont_DATA = $(DEVPSFONTFILES) 
+dist_devpsfont_DATA = $(DEVPSFONTFILES)
 nodist_devpsfont_DATA = $(DEVPSFONTFILES_GENERATED)
 
 # these files will be installed in oldfontdir
@@ -140,15 +140,16 @@ EXTRA_DIST += \
 
 font/devps/DESC: $(devps_srcdir)/DESC.in
 	$(AM_V_GEN)$(MKDIR_P) font/devps \
-	&& cat $(devps_srcdir)/DESC.in >$@ \
-	&& echo broken $(BROKEN_SPOOLER_FLAGS) >>$@ \
+	&& cat $(devps_srcdir)/DESC.in >$@.tmp \
+	&& echo broken $(BROKEN_SPOOLER_FLAGS) >>$@.tmp \
 	&& if test "$(PAGE)" = A4; then \
-	     echo "papersize a4" >>$@; \
+	     echo "papersize a4" >>$@.tmp; \
 	   else \
-	     echo "papersize letter" >>$@; \
+	     echo "papersize letter" >>$@.tmp; \
 	   fi \
 	&& (test -z '$(PSPRINT)' \
-	    || echo print '$(PSPRINT)' >>$@)
+	    || echo print '$(PSPRINT)' >>$@.tmp)
+	$(AM_V_at)mv $@.tmp $@
 
 maintainer-font-descriptions: devps_font-descriptions
 # This target generates font descriptions from installed Type 1 AFM
diff --git a/font/devutf8/devutf8.am b/font/devutf8/devutf8.am
index f611432e6..9732a82a1 100644
--- a/font/devutf8/devutf8.am
+++ b/font/devutf8/devutf8.am
@@ -37,12 +37,12 @@ $(DEVUTF8FONTSFILES): $(devutf8_srcdir)/R.proto
 	$(AM_V_GEN)$(MKDIR_P) `dirname $@` \
 	&& $(RM) $@ \
 	&& $(SHELL) $(GENFONTSSH) $(devutf8_srcdir)/R.proto \
-	     $(DEVUTF8RES) $(DEVUTF8CPI) `basename $@` > $@
+	  $(DEVUTF8RES) $(DEVUTF8CPI) `basename $@` >$@
 
 font/devutf8/DESC: $(devutf8_srcdir)/DESC.proto
 	$(AM_V_GEN)$(MKDIR_P) `dirname $@` \
 	&& $(SHELL) $(GENDESCSH) $(devutf8_srcdir)/DESC.proto \
-	     $(DEVUTF8RES) $(DEVUTF8CPI) $(DEVUTF8LPI) $(DEVUTF8FONTS) > $@
+	  $(DEVUTF8RES) $(DEVUTF8CPI) $(DEVUTF8LPI) $(DEVUTF8FONTS) >$@
 
 
 # Local Variables: