build: default to --prefix=/usr --exec-prefix=""

1 files changed, 6 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index d7f397e..cd0e2b7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,6 +12,10 @@ AM_PROG_CC_C_O
 AC_PROG_INSTALL
 AC_PROG_LIBTOOL
 
+dnl prefix is /usr, exec_prefix in /, if overridden exec_prefix follows prefix
+AC_PREFIX_DEFAULT([/usr])
+test "$prefix" = NONE && test "$exec_prefix" = NONE && exec_prefix=
+
 dnl ensure that when the Automake generated makefile calls aclocal,
 dnl it honours the $ACLOCAL_FLAGS environment variable
 ACLOCAL_AMFLAGS="\${ACLOCAL_FLAGS}"
@@ -77,6 +81,8 @@ echo "
 	udev-extras $VERSION
 	====================
 
+	prefix:			${prefix}
+	exec_prefix:		${exec_prefix}
 	udev_prefix:		${udev_prefix}
 	datarootdir:		${datarootdir}
 	mandir:			${mandir}