-# ugh.
-# Man-page:
+# We must invoke the generated $(outdir)/help2man script instead of
+# the help2man.pl source, which means that the scripts/build directory
+# must be built first.
+#
+# From the perlrun man-page:
+#
# If the #! line does not contain the word "perl", the
# program named after the #! is executed instead of the Perl
# interpreter. This is slightly bizarre, but it helps
-# Indeed it is. Perl sucks.
#
+# Indeed it is. Perl sucks.
+#
+# Two screenfulls explaining that the otherwise standard #! is broken
+# for perl, and arguing that this broken magic is better in some
+# cases. Four more explaining what a line comment is, and that it may
+# be parsed, same here.
+
+ifeq ($(PYTHON),$(TARGET_PYTHON))
+HELP2MAN_COMMAND = $(buildscript-dir)/help2man $< > $@
+else
+HELP2MAN_COMMAND = $(buildscript-dir)/help2man "env $$(basename $$(head -1 $<)) $<" > $@
+endif
+
+ifeq ($(strip $(CROSS)),no)
+$(outdir)/%.1: $(outdir)/% $(buildscript-dir)/help2man
+ echo $(buildscript-dir)/help2man
+ $(HELP2MAN_COMMAND)
+else
+# When cross building, some manpages will not build because the
+# executable does not run. We assume the manpages to be generated
+# during a previous compile for the build host, with config=for-build,
+# in the directory $(outdir)-for-build.
+$(outdir)/%.1: $(outdir:%=%-for-build)/%.1
+ cp $< $@
+endif
ifneq ($(outdir),./out)
$(outdir)/%.1: out/%.1
cp $< $@
endif
-$(outdir)/%.1: $(outdir)/%
- echo "generating man page from --help"
-#ugh, don't hide make rules --hampers debugging
- $(PERL) $(builddir)/buildscripts/$(outbase)/help2man $< > $@ || \
- (echo ""; echo "Apparently the man pages failed to build. This is";\
- echo "no problem, since they don't contain any information anyway.";\
- echo "Please run make again, and be prepared for NO manual pages.")
+$(buildscript-dir)/help2man:
+ $(MAKE) -C $(depth)/scripts/build