X-Git-Url: https://ginac.de/CLN/cln.git//cln.git?a=blobdiff_plain;f=src%2Fbase%2Fcl_offsetof.h;h=89ddaf272e7657e35694ddc740e787f332b01bfd;hb=040ed6f6ed478f65442b2e0fee05c19b42c0d5e9;hp=319233448d0ff62439f4831b3d57682ed1cb677f;hpb=dd9e0f894eec7e2a8cf85078330ddc0a6639090b;p=cln.git

diff --git a/src/base/cl_offsetof.h b/src/base/cl_offsetof.h
index 3192334..89ddaf2 100644
--- a/src/base/cl_offsetof.h
+++ b/src/base/cl_offsetof.h
@@ -1,7 +1,9 @@
 // offsetof() and friends
 
-#ifndef _CL_OFFSETOF_H
-#define _CL_OFFSETOF_H
+// <stddef.h> in GCC 3.0/3.1 has the obscure property of redefining
+// offsetof every time it is included, not just the first time.
+// Therefore we do the same thing here, and make sure that this file
+// gets included after each include of <stddef.h>.
 
 #undef offsetof
 #if defined(__GNUG__)
@@ -9,6 +11,10 @@
 #else
   #define offsetof(type,ident)  ((long)&(((type*)0)->ident))
 #endif
+
+#ifndef _CL_OFFSETOF_H
+#define _CL_OFFSETOF_H
+
 #define offsetofa(type,ident)  offsetof(type,ident[0])
 
 #endif /* _CL_OFFSETOF_H */