http://d.puremagic.com/issues/show_bug.cgi?id=451

           Summary: frontend: redundant function definitions
           Product: D
           Version: 0.170
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: trivial
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla@digitalmars.com
        ReportedBy: thomas-dloop@kuehne.cn


While redundant functions definitions aren't bugs they can easily cause bugs while porting code.

=== dmd/expression.c ==================================================================
--- dmd/expression.c    (revision 2011)
+++ dmd/expression.c    (local)
@@ -14,10 +14,6 @@
 #include <assert.h>
 #include <complex>

-#if __GNUC__
-extern "C" long double strtold(const char *p,char **endp);
-#endif
-
 #if _WIN32 && __DMC__
 extern "C" char * __cdecl __locale_decpoint;
 #endif
=== dmd/html.c
==================================================================
--- dmd/html.c  (revision 2011)
+++ dmd/html.c  (local)
@@ -25,10 +25,6 @@
 #include "root.h"
 #include "../mars/mars.h"

-#if __GNUC__
-int memicmp(const char *s1, const char *s2, int n);
-#endif
-
 extern int HtmlNamedEntity(unsigned char *p, int length);

 /**********************************
=== dmd/lexer.c
==================================================================
--- dmd/lexer.c (revision 2011)
+++ dmd/lexer.c (local)
@@ -28,7 +28,6 @@

 #if __GNUC__
 #include <time.h>
-extern "C" long double strtold(const char *p,char **endp);
 #endif

 #if _WIN32
@@ -51,7 +50,6 @@
 extern "C" char * __cdecl __locale_decpoint;
 #endif

-extern int isUniAlpha(unsigned u);
 extern int HtmlNamedEntity(unsigned char *p, int length);

 #define LS 0x2028      // UTF line separator


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