Rename #include'd C files from .c to .h

c/cvalues.h

@@ -1,4 +1,4 @@
-#include "operators.c"
+#include "operators.h"
 
 #ifdef BITS64
 #define NWORDS(sz) (((sz) + 7) >> 3)

c/flisp.c

@@ -394,8 +394,8 @@ value_t alloc_vector(size_t n, int init)
 // cvalues
 // --------------------------------------------------------------------
 
-#include "cvalues.c"
-#include "types.c"
+#include "cvalues.h"
+#include "types.h"
 
 // print
 // ----------------------------------------------------------------------
@@ -403,7 +403,7 @@ value_t alloc_vector(size_t n, int init)
 static int isnumtok(char *tok, value_t *pval);
 static inline int symchar(char c);
 
-#include "print.c"
+#include "print.h"
 
 // collector
 // ------------------------------------------------------------------
@@ -747,12 +747,12 @@ int fl_isnumber(value_t v)
 // read
 // -----------------------------------------------------------------------
 
-#include "read.c"
+#include "read.h"
 
 // equal
 // ----------------------------------------------------------------------
 
-#include "equal.c"
+#include "equal.h"
 
 // eval
 // -----------------------------------------------------------------------

c/hashing.c

@@ -61,7 +61,7 @@ u_int32_t int64to32hash(u_int64_t key)
     return (u_int32_t)key;
 }
 
-#include "lookup3.c"
+#include "lookup3.h"
 
 u_int64_t memhash(const char *buf, size_t n)
 {

c/random.c

@@ -10,7 +10,7 @@
 #include "random.h"
 #include "timefuncs.h"
 
-#include "mt19937ar.c"
+#include "mt19937ar.h"
 
 double rand_double()
 {

c/utf8.c

@@ -256,7 +256,7 @@ size_t u8_strlen(const char *s)
 }
 
 #if defined(__WIN32__)
-#include "wcwidth.c"
+#include "wcwidth.h"
 #endif
 
 size_t u8_strwidth(const char *s)