Merge pull request #965

autogen.sh: improve usability and enable silent rules

autogen.sh

@@ -3,20 +3,42 @@
 script=$0
 srcdir=$(dirname ${script})
 
+debug='-g -O1 -D_FORTIFY_SOURCE=2'
+werror=''
+args=()
+while test $# -gt 0 ; do
+	case $1 in
+	-debug0) debug='-g -O0'   ;;
+	-Werror) werror='-Werror' ;;
+	*)       args+=("$1")     ;;
+	esac
+	shift
+done
+
 test -f "${srcdir}/configure.ac" || exit 1
 pushd "${srcdir}" >/dev/null
 autoreconf --force --install     || exit 1
 popd >/dev/null
 
-_lib=`rpm -E '%_lib' 2>/dev/null`
+statedir=$(rpm -E '%{!_rundir:/var}' 2>/dev/null)
+_lib=$(rpm -E '%_lib' 2>/dev/null)
 test -n "$_lib" || case "$(uname -m)" in
 	x86_64|s390x|ppc64|powerpc64) _lib=lib64 ;;
 	*) _lib=lib ;;
 esac
 
-export CFLAGS="${CFLAGS:- -std=gnu89 -O1 -g -D_FORTIFY_SOURCE=2 -fstack-protector -Wall -Wextra -Wno-unused-parameter}"
+export CFLAGS="${CFLAGS:--std=gnu89 ${debug} -fstack-protector -Wall -Wextra -Wno-unused-parameter ${werror}}"
+
 prefix=/usr
-defaults=(--sysconfdir=/etc --prefix=${prefix} --libdir=${prefix}/${_lib} --libexecdir=${prefix}/lib --datadir=${prefix}/share --localstatedir=/var)
+defaults=(
+	--enable-silent-rules
+	--sysconfdir=/etc
+	--prefix="${prefix}"
+	--libdir="${prefix}/${_lib}"
+	--libexecdir="${prefix}/lib"
+	--datadir="${prefix}/share"
+	--localstatedir="${statedir}"
+)
 
-"${srcdir}/configure" "${@:-${defaults[@]}}"
+"${srcdir}/configure" "${defaults[@]}" "${args[@]}"