contrib/persistent-https: update ldflags syntax for Go 1.7+

diff --git a/contrib/persistent-https/Makefile b/contrib/persistent-https/Makefile
index 92baa3beeeaf924e06ceb6d8afb9e14e60f322e6..07468a0f05adb404dfffa15af11dc47fe1c33069 100644 (file)
--- a/contrib/persistent-https/Makefile
+++ b/contrib/persistent-https/Makefile
@@ -25,8 +25,10 @@ git-remote-persistent-http: git-remote-persistent-https
        ln -f -s git-remote-persistent-https git-remote-persistent-http
 
 git-remote-persistent-https:
+       case $$(go version) in \
+       "go version go"1.[0-5].*) EQ=" " ;; *) EQ="=" ;; esac && \
        go build -o git-remote-persistent-https \
-               -ldflags "-X main._BUILD_EMBED_LABEL $(BUILD_LABEL)"
+               -ldflags "-X main._BUILD_EMBED_LABEL$${EQ}$(BUILD_LABEL)"
 
 clean:
        rm -f git-remote-persistent-http* *.tar.gz