From 9fc6008076b1b5ddf8d48cbc5a820c13070c1375 Mon Sep 17 00:00:00 2001
From: Ludwig Nussel <ludwig.nussel@suse.de>
Date: Fri, 24 Apr 2009 11:18:19 +0000
Subject: [PATCH] introduce common_functions file to be shared between programs

move set_build_arch to common_functions
introduce $BUILD_HOST_ARCH (not used yet)
---
 build            | 28 ++++------------------------
 common_functions | 28 ++++++++++++++++++++++++++++
 init_buildsystem |  4 ++++
 3 files changed, 36 insertions(+), 24 deletions(-)
 create mode 100644 common_functions

diff --git a/build b/build
index 1b6cf7b..bb2320d 100755
--- a/build
+++ b/build
@@ -10,7 +10,7 @@
 test -z "$BUILD_DIR" && BUILD_DIR=/usr/lib/build
 test -z "$BUILD_ROOT" && BUILD_ROOT=/var/tmp/build-root
 
-export BUILD_ARCH BUILD_ROOT BUILD_RPMS BUILD_DIR
+export BUILD_ARCH BUILD_HOST_ARCH BUILD_ROOT BUILD_RPMS BUILD_DIR
 
 ccache=0
 icecream=0
@@ -405,29 +405,6 @@ detect_vm_2nd_stage()
     return 0
 }
 
-set_build_arch()
-{
-    if [ -z "$BUILD_ARCH" ]; then
-	BUILD_ARCH=`uname -m`
-	test i686 = "$BUILD_ARCH" && BUILD_ARCH=i586 # XXX: why?
-    fi
-
-    case $BUILD_ARCH in
-      i686) BUILD_ARCH="i686:i586:i486:i386" ;;
-      i586) BUILD_ARCH="i586:i486:i386" ;;
-      i486) BUILD_ARCH="i486:i386" ;;
-      x86_64) BUILD_ARCH="x86_64:i686:i586:i486:i386" ;;
-    esac
-    if test "$BUILD_ARCH" != "${BUILD_ARCH#i686}" ; then
-	cpuflags=`grep ^flags /proc/cpuinfo`
-	cpuflags="$cpuflags "
-	test "$cpuflags" = "${cpuflags/ cx8 /}" -o "$cpuflags" = "${cpuflags/ cmov /}" && {
-	    echo "Your cpu doesn't support i686 rpms. Exit."
-	    exit 1
-	}
-    fi
-}
-
 find_spec_files()
 {
     local spec files
@@ -510,6 +487,9 @@ shopt -s nullglob
 if detect_vm_2nd_stage ; then
     set "/.build-srcdir/$SPECFILE"
 fi
+
+. $BUILD_DIR/common_functions || exit 1
+
 export HOST
 
 while test -n "$1"; do
diff --git a/common_functions b/common_functions
new file mode 100644
index 0000000..41584db
--- /dev/null
+++ b/common_functions
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+set_build_arch()
+{
+    : ${BUILD_HOST_ARCH:=`uname -m`}
+
+    if [ -z "$BUILD_ARCH" ]; then
+	BUILD_ARCH="$BUILD_HOST_ARCH"
+	test i686 != "$BUILD_ARCH" || BUILD_ARCH=i586 # XXX: why?
+    fi
+
+    case $BUILD_ARCH in
+      i686) BUILD_ARCH="i686:i586:i486:i386" ;;
+      i586) BUILD_ARCH="i586:i486:i386" ;;
+      i486) BUILD_ARCH="i486:i386" ;;
+      x86_64) BUILD_ARCH="x86_64:i686:i586:i486:i386" ;;
+    esac
+    if test "$BUILD_ARCH" != "${BUILD_ARCH#i686}" ; then
+	cpuflags=`grep ^flags /proc/cpuinfo`
+	cpuflags="$cpuflags "
+	test "$cpuflags" = "${cpuflags/ cx8 /}" -o "$cpuflags" = "${cpuflags/ cmov /}" && {
+	    echo "Your cpu doesn't support i686 rpms. Exit."
+	    exit 1
+	}
+    fi
+}
+
+# vim:sw=4
diff --git a/init_buildsystem b/init_buildsystem
index fb9ecbb..a074b55 100755
--- a/init_buildsystem
+++ b/init_buildsystem
@@ -22,6 +22,8 @@ browner=0
 definesnstuff=()
 repos=()
 
+. $BUILD_DIR/common_functions || exit 1
+
 # should RPMs be installed with --force ?
 USE_FORCE=false
 
@@ -303,6 +305,8 @@ fail_exit()
   cleanup_and_exit 1
 }
 
+set_build_arch
+
 trap fail_exit EXIT
 
 if [ "$BUILD_ROOT" = / ]; then
-- 
2.7.4