__alloca patch?

[Jeffrey Walton]

Hi Everyone,

I'm working from the 4.2.1 tarball. I see __alloca has caused some
grief. (https://lists.gnu.org/archive/html/bug-make/2017-11/msg00020.html
and friends).

There have been no GNU Make releases since June 2016. The problem is
still present, and it does not look like it is going to be fixed
anytime soon.

What is the official patch to fix the problem? Does someone have a
'diff -u' or a 'git diff'?

Thanks in advance,

Jeff

******************************

Here is the problem on Fedora 29 x86_64:

gmake[2]: Entering directory '/home/jwalton/Build-Scripts/make-4.2.1/glob'
gcc -DHAVE_CONFIG_H -I. -I..   -I/usr/local/include -DNDEBUG  -g2 -O2
-march=native -fPIC -MT glob.o -MD -MP -MF .deps/glob.Tpo -c -o glob.o
glob.c
gcc -DHAVE_CONFIG_H -I. -I..   -I/usr/local/include -DNDEBUG  -g2 -O2
-march=native -fPIC -MT fnmatch.o -MD -MP -MF .deps/fnmatch.Tpo -c -o
fnmatch.o fnmatch.c
mv -f .deps/fnmatch.Tpo .deps/fnmatch.Po
glob.c: In function ‘glob’:
glob.c:581:23: warning: implicit declaration of function ‘__alloca’;
did you mean ‘alloca’? [-Wimplicit-function-declaration]
       newp = (char *) __alloca (dirlen + 1);
                       ^~~~~~~~
                       alloca
glob.c:581:14: warning: cast to pointer from integer of different size
[-Wint-to-pointer-cast]
       newp = (char *) __alloca (dirlen + 1);
              ^
glob.c:709:15: warning: cast to pointer from integer of different size
[-Wint-to-pointer-cast]
        newp = (char *) __alloca (home_len + dirlen);
               ^
glob.c:732:15: warning: cast to pointer from integer of different size
[-Wint-to-pointer-cast]
        newp = (char *) __alloca (end_name - dirname);
               ^
glob.c:783:15: warning: cast to pointer from integer of different size
[-Wint-to-pointer-cast]
        newp = (char *) __alloca (home_len + rest_len + 1);
               ^
glob.c:814:11: warning: implicit declaration of function ‘__stat’; did
you mean ‘__xstat’? [-Wimplicit-function-declaration]
         : __stat (dirname, &st)) == 0
           ^~~~~~
           __xstat
glob.c: In function ‘glob_in_dir’:
glob.c:1256:21: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
    char *fullname = (char *) __alloca (dirlen + 1 + patlen + 1);
                     ^
glob.c:1283:12: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
    names = (struct globlink *) __alloca (sizeof (struct globlink));
            ^
glob.c:1341:32: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
         struct globlink *new = (struct globlink *)
                                ^
glob.c:1367:15: warning: cast to pointer from integer of different
size [-Wint-to-pointer-cast]
       names = (struct globlink *) __alloca (sizeof (struct globlink));
               ^
mv -f .deps/glob.Tpo .deps/glob.Po
rm -f libglob.a
ar cru libglob.a glob.o fnmatch.o
ranlib libglob.a