--- /dev/null
+dnl Make automake/libtool output more friendly to humans
+dnl
+dnl SHAVE_INIT([shavedir])
+dnl
+dnl shavedir: the directory where the shave scripts are, it defaults to
+dnl $(top_builddir)
+dnl
+dnl * SHAVE_INIT should be called late in your configure.(ac|in) file (just
+dnl before AC_CONFIG_FILE/AC_OUTPUT is perfect. This macro rewrites CC and
+dnl LIBTOOL, you don't want the configure tests to have these variables
+dnl re-defined.
+dnl * This macro requires GNU make's -s option.
+
+AC_DEFUN([SHAVE_INIT],
+[
+ dnl enable/disable shave
+ AC_ARG_ENABLE([shave],
+ AS_HELP_STRING([--enable-shave],
+ [use shave to make the build pretty [[default=no]]]),,
+ [enable_shave=no])
+
+ if test x"$enable_shave" = xyes; then
+ dnl where can we find the shave scripts?
+ m4_if([$1],,
+ [shavedir='$(top_builddir)'],
+ [shavedir='$(top_builddir)'/$1])
+ AC_SUBST(shavedir)
+
+ dnl make is now quiet
+ AC_SUBST([MAKEFLAGS], [-s])
+ AC_SUBST([AM_MAKEFLAGS], ['`test -z $V && echo -s`'])
+
+ dnl we need sed
+ AC_CHECK_PROG(SED,sed,sed,false)
+
+ dnl substitute libtool
+ SHAVE_SAVED_LIBTOOL=$LIBTOOL
+ AC_SUBST(SHAVE_SAVED_LIBTOOL)
+ LIBTOOL="\$(SHELL) \$(shavedir)/shave-libtool '\$(SHAVE_SAVED_LIBTOOL)'"
+ AC_SUBST(LIBTOOL)
+
+ dnl substitute cc/cxx
+ SHAVE_SAVED_CC=$CC
+ SHAVE_SAVED_CXX=$CXX
+ AC_SUBST(SHAVE_SAVED_CC)
+ AC_SUBST(SHAVE_SAVED_CXX)
+ CC="\$(SHELL) \$(shavedir)/shave cc '\$(SHAVE_SAVED_CC)'"
+ CXX="\$(SHELL) \$(shavedir)/shave cxx '\$(SHAVE_SAVED_CXX)'"
+ AC_SUBST(CC)
+ AC_SUBST(CXX)
+
+ V=@
+ else
+ V=1
+ fi
+ Q='$(V:1=)'
+ AC_SUBST(V)
+ AC_SUBST(Q)
+])
+
+AC_DEFUN([SHAVE_OUTPUT],
+[
+ if test x"$enable_shave" = xyes; then
+ dnl small workaround to fix libtool itself
+ dnl it's shokingly hard to find a better way, really! wtf...
+ test -f $srcdir/libtool && (tmpfile=`mktemp` && cat $srcdir/libtool | sed "s,^LTCC=.*$,LTCC=\"$SHELL $ac_pwd/shave cc $SHAVE_SAVED_CC\"," > $tmpfile && mv $tmpfile $srcdir/libtool)
+ fi
+
+])