build: Drop make dist in gitian builds

contrib/gitian-descriptors/gitian-osx.yml

@@ -103,31 +103,21 @@ script: |
   create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
   export PATH=${WRAP_DIR}:${PATH}
 
-  # Create the release tarball using (arbitrarily) the first host
-  ./autogen.sh
-  CONFIG_SITE=${BASEPREFIX}/$(echo "${HOSTS}" | awk '{print $1;}')/share/config.site ./configure --prefix=/
-  make dist
-  SOURCEDIST=$(echo bitcoin-*.tar.gz)
-  DISTNAME=${SOURCEDIST/%.tar.gz}
-
-  # Workaround for tarball not building with the bare tag version (prep)
-  make -C src obj/build.h
+  # Create the git archive, and define DISTNAME and GIT_ARCHIVE variables.
+  # shellcheck source=contrib/gitian-descriptors/make_git_archive
+  source contrib/gitian-descriptors/make_git_archive
 
   ORIGPATH="$PATH"
-  # Extract the release tarball into a dir for each host and build
+  # Extract the git archive into a dir for each host and build
   for i in ${HOSTS}; do
     export PATH=${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
     mkdir -p distsrc-${i}
     cd distsrc-${i}
     INSTALLPATH="${PWD}/installed/${DISTNAME}"
     mkdir -p ${INSTALLPATH}
-    tar --strip-components=1 -xf ../$SOURCEDIST
-
-    # Workaround for tarball not building with the bare tag version
-    echo '#!/bin/true' >share/genbuild.sh
-    mkdir src/obj
-    cp ../src/obj/build.h src/obj/
+    tar -xf $GIT_ARCHIVE
 
+    ./autogen.sh
     CONFIG_SITE=${BASEPREFIX}/${i}/share/config.site ./configure --prefix=/ --disable-ccache --disable-maintainer-mode --disable-dependency-tracking ${CONFIGFLAGS}
     make ${MAKEOPTS}
     make ${MAKEOPTS} -C src check-security
@@ -160,7 +150,4 @@ script: |
     cd ../../
   done
 
-  mkdir -p ${OUTDIR}/src
-  git archive --output=${OUTDIR}/src/${DISTNAME}.tar.gz HEAD
-
   mv ${OUTDIR}/${DISTNAME}-x86_64-*.tar.gz ${OUTDIR}/${DISTNAME}-osx64.tar.gz