tools/automake: use make variable to generate aclocal symlinks

Instead of having a somewhat random list of aclocal symlinks
which are named with the API versioning scheme,
install a symlink for every API version since 1.11
(the first release after Automake was moved to git)
using the API version number from the version of automake
that is currently in openwrt.

Automake API versioning does not include the patch level number.

Signed-off-by: Michael Pratt <[email protected]>

tools/automake/Makefile

@@ -9,6 +9,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=automake
 PKG_CPE_ID:=cpe:/a:gnu:automake
 PKG_VERSION:=1.15.1
+PKG_API_VERSION:=$(word 2,$(subst ., ,$(PKG_VERSION)))
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNU/automake
@@ -34,11 +35,13 @@ define Host/Install
 	$(call Host/Compile/Default,install)
 	mv $(STAGING_DIR_HOST)/bin/aclocal $(STAGING_DIR_HOST)/bin/aclocal.real
 	$(INSTALL_BIN) ./files/aclocal $(STAGING_DIR_HOST)/bin
-	ln -sf aclocal $(STAGING_DIR_HOST)/bin/aclocal-1.9
-	ln -sf aclocal $(STAGING_DIR_HOST)/bin/aclocal-1.10
-	ln -sf aclocal $(STAGING_DIR_HOST)/bin/aclocal-1.11
-	ln -sf aclocal $(STAGING_DIR_HOST)/bin/aclocal-1.11.6
-	ln -sf aclocal $(STAGING_DIR_HOST)/bin/aclocal-1.15
+	( \
+		api=$(PKG_API_VERSION); \
+		while [ "$$$$api" -ge 11 ]; do \
+			ln -sf aclocal "$(STAGING_DIR_HOST)/bin/aclocal-1.$$$$api"; \
+			api=$$$$(($$$$api - 1)); \
+		done; \
+	)
 endef
 
 define Host/Uninstall