We already fail to build with versions of curl older than 7.19.4. But doing an explicit check with an #error has two benefits. One is that it makes it clear to users that the build failure is intentional, so they don't waste time trying to debug it. And two is that it documents our current "too old" assumption, so that we know whether we need use an #ifdef when using newer curl features in future patches. Signed-off-by: Jeff King <peff@xxxxxxxx> --- http.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/http.h b/http.h index da4d8589d8..29acfe8c55 100644 --- a/http.h +++ b/http.h @@ -10,6 +10,10 @@ #include "remote.h" #include "url.h" +#if LIBCURL_VERSION_NUM < 0x071304 +#error "your libcurl version is too old; Git requires curl >= 7.19.4" +#endif + #define DEFAULT_MAX_REQUESTS 5 /* -- 2.14.0.609.gd2d1f7ddf
