Workaround for UCRT

Author: jeroen

DESCRIPTION

@@ -1,7 +1,7 @@
 Package: gifski
 Type: Package
 Title: Highest Quality GIF Encoder
-Version: 0.8.7
+Version: 0.8.7.1
 Authors@R: c(
     person("Jeroen", "Ooms", ,"jeroen@berkeley.edu", role = c("aut", "cre"),
       comment = c(ORCID = "0000-0002-4035-0289")),

NEWS

@@ -1,3 +1,7 @@
+0.8.7.1
+  - Add workaround for compiling with old rustc compilers
+  - Add workaround for linking error with experimental UCRT toolchain
+
 0.8.7
   - CRAN insists that we override the standard cargo/rust behaviour which
     stores registry and crate data in ~/.cargo, because policy. So we now

src/wrapper.c

@@ -80,3 +80,12 @@ attribute_visible void R_init_gifski(DllInfo *dll) {
   R_registerRoutines(dll, NULL, CallEntries, NULL, NULL);
   R_useDynamicSymbols(dll, FALSE);
 }
+
+/* Workaround for linking error with experimental UCRT toolchain */
+#ifdef _WIN32
+#ifdef _UCRT
+FILE * __cdecl __imp___iob_func(void){
+  return NULL;
+}
+#endif
+#endif