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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
])
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