From: Alex Deiter <alex.deiter@gmail.com>
Date: Fri, 24 Jun 2022 05:55:58 +0000 (-0700)
Subject: LU-15967 build: configure script does not check for required build tools
X-Git-Tag: 2.15.51~87
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=121a79651fc77e5c596716972fb58da7e93f7075

LU-15967 build: configure script does not check for required build tools

- added check for flex and bison
- added requirement for build kernel modules

Change-Id: I4f4f19ea44f3cd8f69482d950970bf701e81f7ec
Signed-off-by: Alex Deiter <alex.deiter@gmail.com>
Reviewed-on: https://review.whamcloud.com/47744
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/config/lustre-build.m4 b/config/lustre-build.m4
index 6a28127..fdae513 100644
--- a/config/lustre-build.m4
+++ b/config/lustre-build.m4
@@ -155,6 +155,8 @@ AC_ARG_ENABLE([modules],
 AC_MSG_RESULT([$enable_modules ($target_os)])
 
 AS_IF([test "x$enable_modules" = xyes], [
+	AS_IF([test "x$FLEX" = "x"], [AC_MSG_ERROR([flex package is required to build kernel modules])])
+	AS_IF([test "x$BISON" = "x"], [AC_MSG_ERROR([bison package is required to build kernel modules])])
 	AS_CASE([$target_os],
 		[linux*], [
 			# Run serial tests
diff --git a/configure.ac b/configure.ac
index 16e9ee8..ea8aea7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -17,6 +17,8 @@ AC_PROG_LIBTOOL
 AC_PROG_MKDIR_P
 AM_PROG_AS
 
+AC_PATH_PROG(FLEX, flex)
+AC_PATH_PROG(BISON, bison)
 AC_PATH_PROG(RPMBUILD, rpmbuild)
 AC_CHECK_TOOLS(AR, ar)