Makefile: comment tricky yconf condition

The yconf.c file is generated from the yconf.y yacc source; it is the
main and only source file that is actuall compiled, as it #include-s the
other source files (weird, but that's how it's done upstream).

So yconf.c does not need to be listed as a built source; the other two,
generated from lex and gperf source files, do need to be listed because
they are not part of _SOURCES, but are only in _EXTRA_SOURCES.

However, .c files generated from yacc code are nt considerate as being
intermediate files, and thus are not cleaned automatically.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

diff --git a/Makefile.am b/Makefile.am
index 7974a186f5598c1c3987e20c349819712de531b6..014294041269c4e2e83ebe288837632c48365529 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -89,9 +89,13 @@ AM_V_GPERF_1 =
 .l.c:
        $(AM_V_LEX)$(LEXCOMPILE) -o$@ $<
 
+# yconf.c not listed, because it is the real _SOURCES, but others are
+# in _EXTRA_SOURCES (above), so must be listed:
 BUILT_SOURCES += \
        libs/parser/hconf.c \
        libs/parser/lconf.c
+# Still, .c files generated from .y files are not cleaned by default,
+# so yconf.c must be explicitly listed:
 CLEANFILES += \
        libs/parser/hconf.c \
        libs/parser/lconf.c \