Makefile: build-src: Fix dependencies

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>

diff --git a/Makefile b/Makefile
index 38ea89c697bd21a0ae5ab61f4f46f1ae8a16e13a..0ec7988ac2aae542bdf390494579097734dd6895 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -220,14 +220,16 @@ _man8pages  := $(filter %$(man8ext),$(_manpages))
 _LINT_groff :=$(patsubst $(MANDIR)/%,$(_LINTDIR)/%.lint.groff.touch,$(LINTMAN))
 _LINT_mandoc:=$(patsubst $(MANDIR)/%,$(_LINTDIR)/%.lint.mandoc.touch,$(LINTMAN))
 _SRCPAGEDIRS:=$(patsubst $(MANDIR)/%,$(_SRCDIR)/%.d,$(LINTMAN))
-_UNITS_c    :=$(sort $(patsubst $(MANDIR)/%,$(_SRCDIR)/%,$(shell \
+_UNITS_src  :=$(sort $(patsubst $(MANDIR)/%,$(_SRCDIR)/%,$(shell \
                find $(MANDIR)/man?/ -type f \
                | grep '$(manext)$$' \
                | xargs grep -l '^\.TH ' \
                | while read m; do \
                        <$$m \
-                       sed -n "s,^\... SRC BEGIN (\(.*.c\))$$,$$m.d/\1,p"; \
+                       sed -n "s,^\... SRC BEGIN (\(.*.[ch]\))$$,$$m.d/\1,p"; \
                done)))
+_UNITS_h    := $(filter %.h,$(_UNITS_src))
+_UNITS_c    := $(filter %.c,$(_UNITS_src))
 _UNITS_o    := $(patsubst %.c,%.o,$(_UNITS_c))
 _UNITS_bin  := $(patsubst %.c,%,$(_UNITS_c))
 _LINT_clang-tidy := $(patsubst %.c,%.lint.clang-tidy.touch,$(_UNITS_c))
@@ -324,9 +326,11 @@ $(_SRCPAGEDIRS): $(_SRCDIR)/%.d: $(MANDIR)/% | $$(@D)/.
        $(MKDIR) $@
        touch $@
 
-$(_UNITS_c): $$(@D)
+$(_UNITS_src): $$(patsubst $(_SRCDIR)/%.d,$(MANDIR)/%,$$(@D)) | $$(@D)
+$(_UNITS_c):   $$(filter $$(@D)/%.h,$(_UNITS_h))
+$(_UNITS_src):
        $(info SED      $@)
-       <$(patsubst $(_SRCDIR)/%.d,$(MANDIR)/%,$<) \
+       <$< \
        sed -n \
                -e '/^\.TH/,/^\.SH/{/^\.SH/!p}' \
                -e '/^\.SH EXAMPLES/p' \