Makefile.am: use portable POSIX primitive to get directory name.

Use '$(@D)' instead of '$(dir $@)', as the latter requires secondary
expansion feature specific to GNU make; it causes build failures on
bmake.

'$(@D)', on the other hand, is a POSIX make feature documented e.g. in
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/make.html
(section "Internal Macros").

diff --git a/re2c/Makefile.am b/re2c/Makefile.am
index 68f115b07f7cce5a1175500faaeb8b6dd9bbb183..8307239698634adb4b276c1478a2a446caf40196 100644 (file)
--- a/re2c/Makefile.am
+++ b/re2c/Makefile.am
@@ -228,7 +228,7 @@ CLEANFILES = \
        $(DOC)
 
 $(AUTOGEN_PARSER): $(CUSTOM_PARSER)
-       $(AM_V_at)$(MKDIR_P) $(dir $@)
+       $(AM_V_at)$(MKDIR_P) $(@D)
        $(AM_V_GEN) if test $(BISON) = "no"; \
        then \
                cp $(top_srcdir)/$(BOOTSTRAP_PARSER) $@ && \
@@ -254,7 +254,7 @@ $(BOOTSTRAP_PARSER): $(CUSTOM_PARSER)
                $(top_srcdir)/$(CUSTOM_PARSER);
 
 .re.cc:
-       $(AM_V_at)$(MKDIR_P) $(dir $@)
+       $(AM_V_at)$(MKDIR_P) $(@D)
        $(AM_V_GEN) if test -x $(RE2C); \
        then \
                $(top_builddir)/$(RE2C) $(RE2CFLAGS) -o $@ $< && \
@@ -275,11 +275,11 @@ bootstrap: all
 if REBUILD_DOCS
 docs: $(DOC) $(AUTOGEN_HELP)
 $(DOC): $(SRC_DOC)
-       $(AM_V_at)$(MKDIR_P) $(dir $@)
+       $(AM_V_at)$(MKDIR_P) $(@D)
        $(RST2MAN) $(top_builddir)/$(SRC_DOC) > $@
        cp $@ $(top_srcdir)/$(BOOTSTRAP_DOC)
 $(AUTOGEN_HELP): $(CUSTOM_HELP)
-       $(AM_V_at)$(MKDIR_P) $(dir $@)
+       $(AM_V_at)$(MKDIR_P) $(@D)
        $(RST2MAN) $(top_builddir)/$(CUSTOM_HELP) > $@.1
        $(top_srcdir)/genhelp.sh $@.1 $@
        cp $@ $(top_srcdir)/$(BOOTSTRAP_HELP)
@@ -287,10 +287,10 @@ else
 docs: $(DOC) $(AUTOGEN_HELP)
        @echo "Reconfigure to rebuild docs: ./configure --enable-docs"
 $(DOC): $(BOOTSTRAP_DOC)
-       $(AM_V_at)$(MKDIR_P) $(dir $@)
+       $(AM_V_at)$(MKDIR_P) $(@D)
        cp $(top_srcdir)/$(BOOTSTRAP_DOC) $@
 $(AUTOGEN_HELP): $(BOOTSTRAP_HELP)
-       $(AM_V_at)$(MKDIR_P) $(dir $@)
+       $(AM_V_at)$(MKDIR_P) $(@D)
        cp $(top_srcdir)/$(BOOTSTRAP_HELP) $@
 endif