Test runtime version on macos

configure

@@ -64,6 +64,11 @@ if [ $? -ne 0 ]; then
   exit 1
 fi
 
+# On MacOS the runtime version can be different from SDK version
+if [ `uname` = "Darwin" ] && ${R_HOME}/bin/Rscript tools/testversion.R; then
+  PKG_CFLAGS="$PKG_CFLAGS -DENABLE_ALL_FEATURES"
+fi
+
 # Write to Makevars
 sed -e "s|@cflags@|$PKG_CFLAGS|" -e "s|@libs@|$PKG_LIBS|" src/Makevars.in > src/Makevars
 

src/curl-common.h

@@ -89,7 +89,7 @@ SEXP reflist_add(SEXP x, SEXP target);
 SEXP reflist_remove(SEXP x, SEXP target);
 
 /* Workaround for CRAN using outdated MacOS11 SDK */
-#if defined(__APPLE__) && !defined(HAS_CURL_EASY_OPTION)
+#if defined(__APPLE__) && !defined(HAS_CURL_EASY_OPTION) && defined(ENABLE_ALL_FEATURES)
 #include "libcurl-options-polyfill.h"
 const char *curl_url_strerror(CURLUcode);
 #define HAS_CURL_EASY_OPTION 1

tools/testversion.R

@@ -0,0 +1,3 @@
+ver <- libcurlVersion()
+cat("Curl runtime version", ver, "\n")
+q('no', status = (numeric_version(ver) < "7.80"))