PKGBUILD: Build binaries with RELRO

According the guidelines, Need to build go binary with RELRO.

Ref: https://wiki.archlinux.org/title/Go_package_guidelines#Sample_PKGBUILD

Signed-off-by: Shohei Maruyama <cheat.sc.linux@outlook.com>

2 files changed, 10 insertions, 5 deletions

diff --git a/.SRCINFO b/.SRCINFO
index 806ad360df06..771657b969b5 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = concourse
 	pkgver = 7.7.1
-	pkgrel = 2
+	pkgrel = 3
 	url = https://concourse-ci.org
 	arch = x86_64
 	license = Apache-2.0
diff --git a/PKGBUILD b/PKGBUILD
index d6f8223d7e82..118b5d42e9bd 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -5,7 +5,7 @@
 pkgbase='concourse'
 pkgname=('concourse' 'concourse-fly-cli' 'concourse-resource-types')
 pkgver=7.7.1
-pkgrel=2
+pkgrel=3
 arch=('x86_64')
 url='https://concourse-ci.org'
 license=('Apache-2.0')
@@ -34,10 +34,15 @@ build() {
   cd "${srcdir}/${pkgname}-${pkgver}"
   export GOPATH="${srcdir}/go"
   export PATH=$PATH:"$GOPATH/bin"
-  ldflags="-X github.com/concourse/concourse.Version=${pkgver}"
+  export CGO_CPPFLAGS="${CPPFLAGS}"
+  export CGO_CFLAGS="${CFLAGS}"
+  export CGO_CXXFLAGS="${CXXFLAGS}"
+  export CGO_LDFLAGS="${LDFLAGS}"
+  export GOFLAGS="-buildmode=pie -trimpath -ldflags=-linkmode=external -ldflags=-X=github.com/concourse/concourse.Version=${pkgver} -mod=readonly -modcacherw"
+
   yarn build
-  go build -o concourse -trimpath -ldflags "${ldflags}" ./cmd/concourse
-  go build -o fly -trimpath -ldflags "${ldflags}" ./fly
+  go build -o concourse ./cmd/concourse
+  go build -o fly ./fly
   gcc -O2 -static cmd/init/init.c -o init
 }