cagent: fix build since switch to CGo

pkg/cagent/Dockerfile

@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-ARG XX_VERSION="1.7.0"
+ARG XX_VERSION="1.9.0"
 ARG DEBIAN_FRONTEND="noninteractive"
 
 ARG DISTRO_NAME="debian12"
@@ -32,13 +32,18 @@ ARG GO_IMAGE="golang"
 ARG GO_VERSION="1.25.5"
 ARG GO_IMAGE_VARIANT="bookworm"
 
+ARG ZIG_VERSION="0.15.2"
+
 # stage used as named context that mounts hack/scripts
 # see pkg target in docker-bake.hcl
 FROM scratch AS scripts
 
 # cross compilation helper
 FROM --platform=$BUILDPLATFORM tonistiigi/xx:${XX_VERSION} AS xx
 
+# osxcross contains the MacOSX cross toolchain for xx
+FROM crazymax/osxcross:15.5-debian AS osxcross
+
 # go base image to retrieve /usr/local/go
 FROM ${GO_IMAGE}:${GO_VERSION}-${GO_IMAGE_VARIANT} AS go
 FROM --platform=$BUILDPLATFORM ${GO_IMAGE}:${GO_VERSION}-${GO_IMAGE_VARIANT} AS gocross
@@ -90,7 +95,7 @@ ENV GOPATH="/go"
 ENV PATH="$PATH:/usr/local/go/bin:$GOPATH/bin"
 ENV GOTOOLCHAIN="local"
 ENV GO111MODULE="on"
-ENV CGO_ENABLED="0"
+ENV CGO_ENABLED="1"
 ARG DISTRO_NAME
 RUN apt-get update && apt-get install -y --no-install-recommends apt-utils bash ca-certificates curl devscripts equivs git
 COPY deb /root/package/debian
@@ -124,7 +129,7 @@ ENV GOPATH="/go"
 ENV PATH="$PATH:/usr/local/go/bin:$GOPATH/bin"
 ENV GOTOOLCHAIN="local"
 ENV GO111MODULE="on"
-ENV CGO_ENABLED="0"
+ENV CGO_ENABLED="1"
 ARG DISTRO_NAME
 RUN --mount=type=bind,from=scripts,source=rpm-init.sh,target=/usr/local/bin/rpm-init \
     --mount=type=secret,id=RH_USER,env=RH_USER \
@@ -157,13 +162,25 @@ RUN --mount=type=bind,source=scripts/pkg-rpm-build.sh,target=/usr/local/bin/pkg-
 FROM --platform=$BUILDPLATFORM ${DISTRO_IMAGE} AS builder-static
 COPY --from=xx / /
 ARG DEBIAN_FRONTEND
-RUN apt-get update && apt-get install -y --no-install-recommends bash ca-certificates file git zip tar
+RUN apt-get update && apt-get install -y --no-install-recommends bash ca-certificates file git zip tar \
+  dpkg-dev clang make pkg-config curl
+ARG ZIG_VERSION
+RUN <<EOT
+  set -e
+  ARCH=$(xx-info march)-$(xx-info os)
+  set -x
+  curl -LO https://ziglang.org/download/$ZIG_VERSION/zig-$ARCH-$ZIG_VERSION.tar.xz
+  tar xf zig-$ARCH-$ZIG_VERSION.tar.xz
+  mv zig-$ARCH-$ZIG_VERSION /opt/zig-$ZIG_VERSION
+  ln -sf /opt/zig-$ZIG_VERSION/zig /usr/local/bin/zig
+  zig version
+EOT
 ENV GOPROXY="https://proxy.golang.org|direct"
 ENV GOPATH="/go"
 ENV PATH="$PATH:/usr/local/go/bin:$GOPATH/bin"
 ENV GOTOOLCHAIN="local"
 ENV GO111MODULE="on"
-ENV CGO_ENABLED="0"
+ENV CGO_ENABLED="1"
 ARG NIGHTLY_BUILD
 ARG PKG_NAME
 ARG PKG_REF
@@ -180,6 +197,7 @@ RUN --mount=type=bind,source=scripts/pkg-static-build.sh,target=/usr/local/bin/p
     --mount=type=bind,from=scripts,source=fix-cc.sh,target=/usr/local/bin/fix-cc \
     --mount=type=bind,from=src,source=/src,target=/usr/local/src/cagent \
     --mount=type=bind,from=gocross,source=/usr/local/go,target=/usr/local/go,rw \
+    --mount=type=bind,from=osxcross,src=/osxsdk,target=/xx-sdk \
     OUTDIR=/out BUILDDIR=/build SRCDIR=/usr/local/src/cagent pkg-static-build
 
 FROM builder-${DISTRO_TYPE} AS build-pkg

pkg/cagent/deb/control

@@ -7,6 +7,7 @@ Vcs-Browser: https://github.com/docker/cagent
 Vcs-Git: git://github.com/docker/cagent.git
 Standards-Version: 3.9.6
 Build-Depends: bash,
+               gcc,
                debhelper-compat (= 12)
 
 Package: cagent

pkg/cagent/rpm/cagent.spec

@@ -13,6 +13,7 @@ Vendor: Docker
 Packager: Docker <support@docker.com>
 
 BuildRequires: bash
+BuildRequires: gcc
 
 %description
 cagent is a powerful multi-agent AI runtime that enables you to create,

pkg/cagent/scripts/pkg-static-build.sh

@@ -40,8 +40,15 @@ for l in $(gen-ver "${SRCDIR}"); do
   export "${l?}"
 done
 
+if [ "$(xx-info os)" != "darwin" ]; then
+  export XX_GO_PREFER_C_COMPILER=zig
+fi
+
 xx-go --wrap
-fix-cc
+
+if [ "$(xx-info os)" = "darwin" ]; then
+  fix-cc
+fi
 
 binext=$([ "$(xx-info os)" = "windows" ] && echo ".exe" || true)
 mkdir -p ${BUILDDIR}/${PKG_NAME}
@@ -51,7 +58,7 @@ mkdir -p ${BUILDDIR}/${PKG_NAME}
   pushd ${SRCDIR}
     go build -trimpath -ldflags "-w -X 'github.com/docker/cagent/pkg/version.Version=${GENVER_VERSION}' -X 'github.com/docker/cagent/pkg/version.Commit=${GENVER_COMMIT}'" -o "${BUILDDIR}/${PKG_NAME}/cagent${binext}" .
   popd
-  xx-verify --static "${BUILDDIR}/${PKG_NAME}/cagent${binext}"
+  xx-verify "${BUILDDIR}/${PKG_NAME}/cagent${binext}"
 )
 
 pkgoutput="$OUTDIR/static/$(xx-info os)/$(xx-info arch)"