secure_getenv declaration error

[John W. Eaton]

After updating gnulib in the Octave sources, I started seeing the
following error:

  In file included from /usr/include/c++/4.7/cstdlib:66:0,
                   from /usr/include/c++/4.7/bits/stl_algo.h:61,
                   from /usr/include/c++/4.7/algorithm:63,
                   from /home/jwe/src/octave/liboctave/array/Array.h:32,
                   from /home/jwe/src/octave/liboctave/array/Array-ch.cc:29:
  ../libgnu/stdlib.h:1098:1: error: invalid conversion from 'char* (*)(const 
char*)' to 'int (*)(const char*)' [-fpermissive]

The attached patch fixes the problem for me.

jwe


diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -773,7 +773,7 @@
 _GL_FUNCDECL_SYS (secure_getenv, char *,
                   (char const *name) _GL_ARG_NONNULL ((1)));
 # endif
-_GL_CXXALIAS_SYS (secure_getenv, int, (char const *name));
+_GL_CXXALIAS_SYS (secure_getenv, char *, (char const *name));
 _GL_CXXALIASWARN (secure_getenv);
 #elif defined GNULIB_POSIXCHECK
 # undef secure_getenv