Rename uint64_t to uint64 (same as in util.h) to avoid a name collision.
https://bugs.gentoo.org/715560

--- polyglot-1.4.70b-orig/pgheader.c
+++ polyglot-1.4.70b/pgheader.c
@@ -49,12 +49,12 @@
 #endif
 
 #ifdef _MSC_VER
-  typedef unsigned __int64 uint64_t;
+  typedef unsigned __int64 uint64;
 #else
-  typedef unsigned long long int uint64_t;
+  typedef unsigned long long int uint64;
 #endif
 
-static int int_from_file(FILE *f, int l, uint64_t *r){
+static int int_from_file(FILE *f, int l, uint64 *r){
     int i,c;
     for(i=0;i<l;i++){
         c=fgetc(f);
@@ -69,7 +69,7 @@
 
 int pgheader_detect(const char *infile){
     FILE *fin;
-    uint64_t r0,r1,r2;
+    uint64 r0,r1,r2;
     int i;
 
     fin=fopen(infile,"rb");