gnumake: Unconditionally fix build against glibc-2.27

pkgs/development/tools/build-managers/gnumake/4.2/default.nix

@@ -20,6 +20,8 @@ stdenv.mkDerivation {
     # included Makefiles, don't look in /usr/include and friends.
     ./impure-dirs.patch
     ./pselect.patch
+    # Fix support for glibc 2.27's glob, inspired by http://www.linuxfromscratch.org/lfs/view/8.2/chapter05/make.html
+    ./glibc-2.27-glob.patch
   ];
 
   nativeBuildInputs = stdenv.lib.optionals guileSupport [ pkgconfig ];

pkgs/development/tools/build-managers/gnumake/4.2/glibc-2.27-glob.patch

@@ -0,0 +1,32 @@
+diff -Naur glob/glob.c glob/glob.c
+--- glob/glob.c	2013-10-20 13:14:38.000000000 -0400
++++ glob/glob.c	2018-03-16 14:32:38.483496170 -0400
+@@ -208,28 +208,9 @@
+ #endif /* __GNU_LIBRARY__ || __DJGPP__ */
+
+
+-#if !defined __alloca && !defined __GNU_LIBRARY__
+-
+-# ifdef	__GNUC__
+-#  undef alloca
+-#  define alloca(n)	__builtin_alloca (n)
+-# else	/* Not GCC.  */
+-#  ifdef HAVE_ALLOCA_H
+ #   include <alloca.h>
+-#  else	/* Not HAVE_ALLOCA_H.  */
+-#   ifndef _AIX
+-#    ifdef WINDOWS32
+-#     include <malloc.h>
+-#    else
+-extern char *alloca ();
+-#    endif /* WINDOWS32 */
+-#   endif /* Not _AIX.  */
+-#  endif /* sparc or HAVE_ALLOCA_H.  */
+-# endif	/* GCC.  */
+-
+ # define __alloca	alloca
+
+-#endif
+
+ #ifndef __GNU_LIBRARY__
+ # define __stat stat

pkgs/top-level/all-packages.nix

@@ -7758,11 +7758,7 @@ with pkgs;
 
   gnumake382 = callPackage ../development/tools/build-managers/gnumake/3.82 { };
   gnumake3 = gnumake382;
-  gnumake42 = callPackage ../development/tools/build-managers/gnumake/4.2 { };
-  gnumake = if hostPlatform.isRiscV # Technically this check should be for glibc version.
-    then gnumake42HEAD
-  else gnumake42;
-  gnumake42HEAD = callPackage ../development/tools/build-managers/gnumake/4.2/head.nix { };
+  gnumake = callPackage ../development/tools/build-managers/gnumake/4.2 { };
 
   gnustep = recurseIntoAttrs (callPackage ../desktops/gnustep {});