Please describe the problem:
Because of C99ism in the file gtk/gtktreemodelfilter.c, gtk+ does not compile.

Steps to reproduce:
1.compile by old compiler.


Actual results:
The following messages are displayed.
gtktreemodelfilter.c(628) : error C2275: 'GtkTreeIter' : illegal use of this
type as an expression
        gtktreemodel.h(39) : see declaration of 'GtkTreeIter'
gtktreemodelfilter.c(628) : error C2146: syntax error : missing ';' before
identifier 'f_iter'
gtktreemodelfilter.c(628) : error C2144: syntax error : '<Unknown>' should be
preceded by '<Unknown>'
gtktreemodelfilter.c(628) : error C2144: syntax error : '<Unknown>' should be
preceded by '<Unknown>'
gtktreemodelfilter.c(628) : error C2143: syntax error : missing ';' before
'identifier'
gtktreemodelfilter.c(628) : error C2065: 'f_iter' : undeclared identifier
gtktreemodelfilter.c(630) : error C2224: left of '.stamp' must have struct/union
type
gtktreemodelfilter.c(631) : error C2224: left of '.user_data' must have
struct/union type
gtktreemodelfilter.c(632) : error C2224: left of '.user_data2' must have
struct/union type

Expected results:
The declaration have to be moved to top of block.

Does this happen every time?
every time

Other information: