The following patch implement a configure passthrough for qemu and
migrate all currently implemented qemu specific configuration flags
(enable-alsa, disable-vnc-tls and disable-gcc-check) to use it.
It uses qemu's configure to get a list of hints for additional options to
use and to keep backward compatible descriptions of the options that can
be used, but adding disable-gcc-check statically so it is clear what the
impact of overriding the use of gcc4 is.
Qemu's configure has been enhanced to protect against the use of invalid
options as well as reconfigured to stderr for fatal errors so they can be
integrated into kvm's configure.
Carlo
---
diff --git a/configure b/configure
index a0c8746..43bd8a7 100755
--- a/configure
+++ b/configure
@@ -6,9 +6,7 @@ want_module=1
qemu_cc=
qemu_cflags=
qemu_ldflags=
-enable_alsa=
-disable_vnc_tls=
-disable_gcc_check=
+qemu_conf=
cross_prefix=
arch=`uname -m`
target_exec=
@@ -26,11 +24,16 @@ usage() {
--qemu-cc=CC specify compiler for qemu (must be gcc-3.x)
--qemu-cflags=CFLAGS CFLAGS to add to qemu configuration
--qemu-ldflags=LDFLAGS LDFLAGS to add to qemu configuration
- --enable-alsa enable alsa support for qemu
- --disable-vnc-tls disable vnc tls support for qemu
+
+ Any additional option is given to qemu's configure verbatim; including:
--disable-gcc-check don't insist on gcc-3.x
CAUTION: this will break running without kvm
EOF
+ cd qemu
+ ./configure --help | egrep "enable-|disable-" \
+ | grep -v user | grep -v system | grep -v kqemu | grep -v kvm \
+ | sed -e "s/^ / /g" \
+ | sed -e"s/ enable/enable/g" | sed -e "s/ disable/disable/g"
exit 1
}
@@ -60,15 +63,6 @@ while [[ "$1" = -* ]]; do
--qemu-ldflags)
qemu_ldflags="$arg"
;;
- --enable-alsa)
- enable_alsa=1
- ;;
- --disable-vnc-tls)
- disable_vnc_tls=1
- ;;
- --disable-gcc-check)
- disable_gcc_check=1
- ;;
--arch)
arch="$arg"
;;
@@ -79,7 +73,7 @@ while [[ "$1" = -* ]]; do
usage
;;
*)
- usage
+ qemu_conf="$qemu_conf $opt"
;;
esac
done
@@ -111,14 +105,11 @@ fi
--disable-kqemu --extra-cflags="-I $PWD/../user $qemu_cflags" \
--extra-ldflags="-L $PWD/../user $qemu_ldflags" \
--enable-kvm --kernel-path="$libkvm_kerneldir" \
- ${enable_alsa:+"--enable-alsa"} \
- ${disable_vnc_tls:+"--disable-vnc-tls"} \
- ${disable_gcc_check:+"--disable-gcc-check"} \
--prefix="$prefix" \
${qemu_cc:+"--cc=$qemu_cc"} \
${cross_prefix:+"--cross-prefix=$cross_prefix"} \
- ${cross_prefix:+"--cpu=$arch"}
-)
+ ${cross_prefix:+"--cpu=$arch"} $qemu_conf > /dev/null
+) || usage
cat <<EOF > config.mak
diff --git a/qemu/configure b/qemu/configure
index fc1e59a..a95018a 100755
--- a/qemu/configure
+++ b/qemu/configure
@@ -311,6 +311,8 @@ for opt do
*) echo "undefined SPARC architecture. Exiting";exit 1;;
esac
;;
+ *) show_help="yes"
+ ;;
esac
done
@@ -419,7 +421,7 @@ EOF
if $cc -c -o $TMPO $TMPC 2> /dev/null ; then
: C compiler works ok
else
- echo "ERROR: \"$cc\" either does not exist or does not work"
+ echo "ERROR: \"$cc\" either does not exist or does not work" 1>&2
exit 1
fi
@@ -438,26 +440,26 @@ if test "$check_gcc" = "yes" ; then
int main(){return 0;}
EOF
if "$cc" -o $TMPE $TMPC 2> /dev/null ; then
- echo "WARNING: \"$cc\" looks like gcc 4.x"
+ echo "WARNING: \"$cc\" looks like gcc 4.x" 1>&2
found_compat_cc="no"
if test "$gcc3_search" = "yes" ; then
- echo "Looking for gcc 3.x"
+ echo "Looking for gcc 3.x" 1>&2
for compat_cc in $gcc3_list ; do
if "$cross_prefix$compat_cc" --version 2> /dev/null | fgrep
'(GCC) 3.' > /dev/null 2>&1 ; then
- echo "Found \"$compat_cc\""
+ echo "Found \"$compat_cc\"" 1>&2
cc="$cross_prefix$compat_cc"
found_compat_cc="yes"
break
fi
done
if test "$found_compat_cc" = "no" ; then
- echo "gcc 3.x not found!"
+ echo "gcc 3.x not found!" 1>&2
fi
fi
if test "$found_compat_cc" = "no" ; then
- echo "QEMU is known to have problems when compiled with gcc 4.x"
- echo "It is recommended that you use gcc 3.x to build QEMU"
- echo "To use this compiler anyway, configure with
--disable-gcc-check"
+ echo "QEMU is known to have problems when compiled with gcc 4.x"
1>&2
+ echo "It is recommended that you use gcc 3.x to build QEMU" 1>&2
+ echo "To use this compiler anyway, configure with
--disable-gcc-check" 1>&2
exit 1;
fi
fi
@@ -970,9 +972,9 @@ esac
if test "$target_user_only" = "no" -a "$check_gfx" = "yes" \
-a "$sdl" = "no" -a "$cocoa" = "no" ; then
- echo "ERROR: QEMU requires SDL or Cocoa for graphical output"
- echo "To build QEMU without graphical output configure with
--disable-gfx-check"
- echo "Note that this will disable all output from the virtual graphics
card."
+ echo "ERROR: QEMU requires SDL or Cocoa for graphical output" 1>&2
+ echo "To build QEMU without graphical output configure with
--disable-gfx-check" 1>&2
+ echo "Note that this will disable all output from the virtual graphics
card." 1>&2
exit 1;
fi
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