From 8948a997f927cfbccbb241d991cf0698b27076de Mon Sep 17 00:00:00 2001
From: scjody <scjody>
Date: Tue, 24 Jul 2007 21:05:44 +0000
Subject: [PATCH] Branch b1_6

Run modpost without the -m flag when it isn't supported - fixes SLES 9
build issue.  Also move the modpost tests to their own configure rule
and use it only when building ldiskfs.

b=12842
i=mjmac
i=brian
---
 autoMakefile.am                      |  2 +-
 build/autoconf/lustre-build-linux.m4 | 48 ++++++++++++++++++++++++++++--------
 ldiskfs/configure.ac                 |  1 +
 ldiskfs/ldiskfs/autoMakefile.am      |  2 +-
 4 files changed, 41 insertions(+), 12 deletions(-)

diff --git a/autoMakefile.am b/autoMakefile.am
index a2ad3f6..3224e59 100644
--- a/autoMakefile.am
+++ b/autoMakefile.am
@@ -1,4 +1,4 @@
-SUBDIRS := . @LIBSYSIO_SUBDIR@ @SNMP_SUBDIR@ @LDISKFS_SUBDIR@ lnet lustre
+SUBDIRS := @LDISKFS_SUBDIR@ . @LIBSYSIO_SUBDIR@ @SNMP_SUBDIR@ lnet lustre
 DIST_SUBDIRS := @SNMP_DIST_SUBDIR@ libsysio ldiskfs lnet lustre
 SOURCES_SUBDIRS := @LDISKFS_SUBDIR@ lnet lustre
 RPM_SUBDIRS := @LDISKFS_SUBDIR@
diff --git a/build/autoconf/lustre-build-linux.m4 b/build/autoconf/lustre-build-linux.m4
index ae29434..0c040ec 100644
--- a/build/autoconf/lustre-build-linux.m4
+++ b/build/autoconf/lustre-build-linux.m4
@@ -188,16 +188,6 @@ if grep rhconfig $LINUX_OBJ/include/linux/version.h >/dev/null ; then
 	EXTRA_KCFLAGS="-include $KERNEL_SOURCE_HEADER $EXTRA_KCFLAGS"
 fi
 
-# Find the modpost utility
-AC_CHECK_FILE([$LINUX_OBJ/scripts/mod/modpost],
-	[MODPOST=$LINUX_OBJ/scripts/mod/modpost],
-	[AC_CHECK_FILE([$LINUX_OBJ/scripts/modpost],
-		[MODPOST=$LINUX_OBJ/scripts/modpost],
-		AC_MSG_ERROR([modpost not found.])
-	)]
-)
-AC_SUBST(MODPOST)
-
 # this is needed before we can build modules
 LB_LINUX_UML
 LB_LINUX_VERSION
@@ -217,6 +207,44 @@ LB_LINUX_RELEASE
 ]) # end of LB_LINUX_PATH
 
 #
+#
+# LB_LINUX_MODPOST
+#
+# Find modpost and check it
+#
+AC_DEFUN([LB_LINUX_MODPOST],
+[
+# Find the modpost utility
+AC_CHECK_FILE([$LINUX_OBJ/scripts/mod/modpost],
+	[MODPOST=$LINUX_OBJ/scripts/mod/modpost],
+	[AC_CHECK_FILE([$LINUX_OBJ/scripts/modpost],
+		[MODPOST=$LINUX_OBJ/scripts/modpost],
+		AC_MSG_ERROR([modpost not found.])
+	)]
+)
+AC_SUBST(MODPOST)
+
+# Ensure it can run
+AC_MSG_CHECKING([if modpost can be run])
+if $MODPOST ; then
+	AC_MSG_RESULT([yes])
+else
+	AC_MSG_ERROR([modpost can not be run.])
+fi
+
+# Check if modpost supports (and therefore requires) -m
+AC_MSG_CHECKING([if modpost supports -m])
+if $MODPOST -m 2>/dev/null ; then
+	AC_MSG_RESULT([yes])
+	MODPOST_ARGS=-m
+else
+	AC_MSG_RESULT([no])
+	MODPOST_ARGS=""
+fi
+AC_SUBST(MODPOST_ARGS)
+])
+
+#
 # LB_LINUX_UML
 #
 # check for a uml kernel
diff --git a/ldiskfs/configure.ac b/ldiskfs/configure.ac
index c63a847..d5c1f7c 100644
--- a/ldiskfs/configure.ac
+++ b/ldiskfs/configure.ac
@@ -27,6 +27,7 @@ AC_MSG_RESULT([$enable_modules])
 
 if test x$enable_modules = xyes ; then
 	LB_PROG_LINUX
+	LB_LINUX_MODPOST
 fi
 
 LB_CONFIG_HEADERS
diff --git a/ldiskfs/ldiskfs/autoMakefile.am b/ldiskfs/ldiskfs/autoMakefile.am
index 1815a9d..129ecb6 100644
--- a/ldiskfs/ldiskfs/autoMakefile.am
+++ b/ldiskfs/ldiskfs/autoMakefile.am
@@ -76,5 +76,5 @@ all: @LINUX_OBJ@/Module.symvers
 # Update the kernel's Module.symvers to add ldiskfs symbols before building
 # fsfilt_ldiskfs - see bug 12842.
 @LINUX_OBJ@/Module.symvers: ldiskfs.o
-	cd .. ; $(MODPOST) -m -i @LINUX_OBJ@/Module.symvers \
+	cd .. ; $(MODPOST) $(MODPOST_ARGS) -i @LINUX_OBJ@/Module.symvers \
 		-o @LINUX_OBJ@/Module.symvers ldiskfs/ldiskfs.o
-- 
1.8.3.1