WIP: How to compile qemu-static-x86_64

[lars18th]

Hi,

I want to share here (only for reference, because this is not complete) how to extend this great project to compile not only qemu-* but qemu-system-x86_64 in a static version:

• Dockerfile:

diff --git a/Dockerfile b/Dockerfile
index 830010c..3b0e51b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,4 @@
+
 FROM alpine:3.20.3

 RUN apk update
@@ -18,6 +19,22 @@ RUN apk add\
  flex\
  bison

+# required to compile Slirp as static lib and qemu-system
+RUN apk add\
+ util-linux-static\
+ bzip2-static ncurses-static\
+ libxkbcommon-static libxkbcommon-dev\
+ libslirp-dev\
+ sdl2-dev\
+ libx11-static gtk+3.0-dev zstd-static\
+ git meson ninja-build
+
+RUN git clone https://gitlab.freedesktop.org/slirp/libslirp.git /tmp/libslirp && \
+    cd /tmp/libslirp && \
+    meson setup --default-library static build && \
+    ninja -C build install && \
+    rm -rf /tmp/libslirp
+
 # additional
 RUN apk add bash xz git patch

• command/configure:

diff --git a/command/configure b/command/configure
index b2efbe5..cde6338 100755
--- a/command/configure
+++ b/command/configure
@@ -8,7 +8,12 @@ WORKDIR "/work/out/${QEMU_SRC_BASENAME}"
 RUN "/work/src/${QEMU_SRC_BASENAME}/configure" \
     --prefix="/work/dst/${QEMU_ARTIFACT_BASENAME}" \
     --disable-debug-info \
-    --disable-system \
+    --enable-system \
+    --target-list=x86_64-softmmu,x86_64-linux-user \
+    --enable-kvm \
+    --enable-slirp \
+    --enable-sdl \
     --disable-werror \
     --enable-linux-user \
+    --enable-strip \
     --static

This is not completed/finished because SDL is not working. It compiles, so you get a fully static version runnable, but only with ncurses interface or console. So no video (missing SDL, GTK+, VNC and SPICE).

I hope someone will continue working on it to complete the full compilation.
And perhaps the author/owner of this project will want to expand it to support the compilation of qemu-system-* binaries. Almost, you can add (with a comment) the required packages, and a secondary/alternative configure. Therefore other interested users can reuse it.

Regards.

Note: The problem, as you can imagine is the lack of static binaries of the required libraries. I suggest to request to the Alpine mantainers group to add them. For example: libslirp.a is missing, although you can compile it. But the same is not true for GTK+ dependencies or with libvncserver (required for VNC) or with spice. With them a lot of not easy to compile static libraries is the problem.