[Qemu-devel] [PATCH] Call configure automatically when needed

[Stefan Weil]

Hello,

this patch calls configure automatically when configure
changed since the last time it was called.

If configure was never called, the user is told to do so.

Regards
Stefan

Automatically rerun configure when it is needed.

Signed-off-by: Stefan Weil <address@hidden>

Index: trunk/Makefile
===================================================================
--- trunk.orig/Makefile 2009-04-05 21:43:15.000000000 +0200
+++ trunk/Makefile      2009-04-05 21:53:37.000000000 +0200
@@ -1,7 +1,13 @@
 # Makefile for QEMU.
 
+ifneq ($(wildcard config-host.mak),)
 include config-host.mak
 include $(SRC_PATH)/rules.mak
+else
+config-host.mak:
+       @echo "Please call configure before running make!"
+       @exit 1
+endif
 
 .PHONY: all clean cscope distclean dvi html info install install-doc \
        recurse-all speed tar tarbin test
@@ -36,6 +42,12 @@
 
 all: $(TOOLS) $(DOCS) recurse-all
 
+config-host.mak: configure
+ifneq ($(wildcard config-host.mak),)
+       @echo $@ is out-of-date, running configure
+       @fgrep "Configured with:" $@ | sed s/.*Configured.with:.// | sh
+endif
+
 SUBDIR_RULES=$(patsubst %,subdir-%, $(TARGET_DIRS))
 
 subdir-%: