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-rw-r--r--tools/missing-macros/Makefile2
-rw-r--r--tools/missing-macros/src/README6
-rw-r--r--tools/missing-macros/src/m4/as-ac-expand.m443
3 files changed, 50 insertions, 1 deletions
diff --git a/tools/missing-macros/Makefile b/tools/missing-macros/Makefile
index 4f7564662f..1d2726d5d5 100644
--- a/tools/missing-macros/Makefile
+++ b/tools/missing-macros/Makefile
@@ -8,7 +8,7 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=missing-macros
-PKG_VERSION:=6
+PKG_VERSION:=7
include $(INCLUDE_DIR)/host-build.mk
diff --git a/tools/missing-macros/src/README b/tools/missing-macros/src/README
index 9d9fbfa844..04d8a06c8f 100644
--- a/tools/missing-macros/src/README
+++ b/tools/missing-macros/src/README
@@ -61,6 +61,12 @@ XMMS feature detection macros.
xmms.m4
+From ao:
+Directory expansion macro for Automake.
+
+ as-ac-expand.m4
+
+
From OpenWrt:
Always disable GTK docs.
diff --git a/tools/missing-macros/src/m4/as-ac-expand.m4 b/tools/missing-macros/src/m4/as-ac-expand.m4
new file mode 100644
index 0000000000..d6c9e33060
--- /dev/null
+++ b/tools/missing-macros/src/m4/as-ac-expand.m4
@@ -0,0 +1,43 @@
+dnl as-ac-expand.m4 0.2.0
+dnl autostars m4 macro for expanding directories using configure's prefix
+dnl thomas@apestaart.org
+
+dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
+dnl example
+dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
+dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
+
+AC_DEFUN([AS_AC_EXPAND],
+[
+ EXP_VAR=[$1]
+ FROM_VAR=[$2]
+
+ dnl first expand prefix and exec_prefix if necessary
+ prefix_save=$prefix
+ exec_prefix_save=$exec_prefix
+
+ dnl if no prefix given, then use /usr/local, the default prefix
+ if test "x$prefix" = "xNONE"; then
+ prefix="$ac_default_prefix"
+ fi
+ dnl if no exec_prefix given, then use prefix
+ if test "x$exec_prefix" = "xNONE"; then
+ exec_prefix=$prefix
+ fi
+
+ full_var="$FROM_VAR"
+ dnl loop until it doesn't change anymore
+ while true; do
+ new_full_var="`eval echo $full_var`"
+ if test "x$new_full_var" = "x$full_var"; then break; fi
+ full_var=$new_full_var
+ done
+
+ dnl clean up
+ full_var=$new_full_var
+ AC_SUBST([$1], "$full_var")
+
+ dnl restore prefix and exec_prefix
+ prefix=$prefix_save
+ exec_prefix=$exec_prefix_save
+])