LU-9934 build: support for gcc7

[fs/lustre-release.git] / config / lustre-build.m4

diff --git a/config/lustre-build.m4 b/config/lustre-build.m4
index 6cb3300..189f735 100644 (file)
--- a/config/lustre-build.m4
+++ b/config/lustre-build.m4
@@ -340,6 +340,28 @@ AC_SUBST(EXTRA_KCFLAGS)
 ]) # LB_PROG_CC
 
 #
+# Check if gcc supports -Wno-format-truncation
+#
+# To supress many warnings with gcc7
+#
+AC_DEFUN([LB_CC_NO_FORMAT_TRUNCATION], [
+       AC_MSG_CHECKING([for -Wno-format-truncation support])
+
+       saved_flags="$CFLAGS"
+       CFLAGS="$CFLAGS -Wno-format-truncation"
+
+       AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
+               EXTRA_KCFLAGS="$EXTRA_KCFLAGS -Wno-format-truncation"
+               AC_SUBST(EXTRA_KCFLAGS)
+               AC_MSG_RESULT([yes])
+       ], [
+               AC_MSG_RESULT([no])
+       ])
+
+       CFLAGS="$saved_flags"
+])
+
+#
 # LB_CONDITIONALS
 #
 # AM_CONDITIONAL instances for everything
@@ -357,6 +379,7 @@ AM_CONDITIONAL([USES_DPKG], [test x$uses_dpkg = xyes])
 AM_CONDITIONAL([USE_QUILT], [test x$use_quilt = xyes])
 AM_CONDITIONAL([RHEL], [test x$RHEL_KERNEL = xyes])
 AM_CONDITIONAL([SUSE], [test x$SUSE_KERNEL = xyes])
+AM_CONDITIONAL([UBUNTU], [test x$UBUNTU_KERNEL = xyes])
 
 # Sanity check for PCLMULQDQ instruction availability
 # PCLMULQDQ instruction is a new instruction available beginning with
@@ -395,8 +418,6 @@ AC_DEFUN([LB_CONFIG_FILES], [
                lustre-iokit/ior-survey/Makefile
                lustre-iokit/stats-collect/Makefile
        )
-       AC_CONFIG_FILES([lustre/scripts/dkms.mkconf],
-                       [chmod +x lustre/scripts/dkms.mkconf])
 ])
 
 #
@@ -440,8 +461,12 @@ AS_IF([test x$enable_ldiskfs = xno -a x$enable_zfs = xno], [
 
 AC_MSG_CHECKING([whether to build Lustre server support])
 AC_MSG_RESULT([$enable_server])
-AS_IF([test x$enable_server = xyes],
-       [AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])])
+AS_IF([test x$enable_server = xyes], [
+       AC_DEFINE(HAVE_SERVER_SUPPORT, 1, [support server])
+       AC_SUBST(ENABLE_SERVER, yes)
+], [
+       AC_SUBST(ENABLE_SERVER, no)
+])
 ]) # LB_CONFIG_SERVERS
 
 #
@@ -474,7 +499,6 @@ for arg; do
                --enable-tests | --disable-tests ) ;;
                --enable-utils | --disable-utils ) ;;
                --enable-iokit | --disable-iokit ) ;;
-               --enable-dlc | --disable-dlc ) ;;
                --enable-manpages | --disable-manpages ) ;;
                * ) CONFIGURE_ARGS="$CONFIGURE_ARGS '$arg'" ;;
        esac
@@ -509,8 +533,8 @@ fi
 if test x$enable_iokit != xyes ; then
        RPMBINARGS="$RPMBINARGS --without lustre_iokit"
 fi
-if test x$USE_DLC = xyes ; then
-       RPMBINARGS="$RPMBINARGS --with lnet_dlc"
+if test x$enable_snmp != xyes ; then
+       RPMBINARGS="$RPMBINARGS --without snmp"
 fi
 if test x$enable_manpages != xyes ; then
        RPMBINARGS="$RPMBINARGS --without manpages"
@@ -549,6 +573,7 @@ LB_INCLUDE_RULES
 LB_PATH_DEFAULTS
 
 LB_PROG_CC
+LB_CC_NO_FORMAT_TRUNCATION
 
 LC_OSD_ADDON