[PATCH 01/25] Move most headers installed by top-level Makefile to misc/.

[Zack Weinberg <zackw at panix dot com>]

The Makefile glue to run tests on installed headers is currently
duplicated between the top-level Makefile and Rules, because the
top-level Makefile doesn't read Rules but does install some headers.

This patch moves most of the headers installed by the top-level Makefile
to misc/ (chosen arbitrarily; I'm open to putting them somewhere else
if reviewers feel it would be better) and removes the duplicated logic
from the top-level Makefile.  I believe this also means that none of
the headers in include/ are installed headers anymore.

gnu/lib-names*.h are still generated by code in Makerules and installed
by the top-level Makefile.  I tried to move them to misc/ as well, but
that broke the generation process in a manner that didn't make any sense
so I gave up.  The tests performed on installed headers are not
especially useful for gnu/lib-names*.h so I think we can live with this
for now.

	* include/bits/xopen_lim.h
	* include/features.h
	* include/gnu-versions.h
	* include/gnu/libc-version.h
	* include/limits.h
	* include/stdc-predef.h
	* include/values.h:
	Move to misc/ and replace with a trivial wrapper.
	* Makefile (headers): Remove all headers moved to misc/.
	Don't set a vpath for %.h.
	(check-installed-headers-c.out, check-installed-headers-cxx.out)
	(check-wrapper-headers.out): Remove rules.
	* misc/Makefile (headers): Add all of the above headers and
	sort the list.
	* sysdeps/mach/hurd/bits/errno.h: Regenerate.
---
 Makefile                             |  38 +--
 include/bits/xopen_lim.h             | 149 +--------
 include/features.h                   | 478 +--------------------------
 include/gnu-versions.h               |  53 +--
 include/gnu/libc-version.h           |  35 +-
 include/limits.h                     | 193 +----------
 include/stdc-predef.h                |  61 +---
 include/values.h                     |  69 +---
 misc/Makefile                        |  31 +-
 {include => misc}/bits/xopen_lim.h   |   0
 {include => misc}/features.h         |   0
 {include => misc}/gnu-versions.h     |   0
 {include => misc}/gnu/libc-version.h |   0
 {include => misc}/limits.h           |   0
 {include => misc}/stdc-predef.h      |   0
 {include => misc}/values.h           |   0
 sysdeps/mach/hurd/bits/errno.h       |   1 +
 17 files changed, 26 insertions(+), 1082 deletions(-)
 rewrite include/bits/xopen_lim.h (100%)
 rewrite include/features.h (100%)
 rewrite include/gnu-versions.h (100%)
 rewrite include/gnu/libc-version.h (100%)
 rewrite include/limits.h (100%)
 rewrite include/stdc-predef.h (100%)
 rewrite include/values.h (100%)
 copy {include => misc}/bits/xopen_lim.h (100%)
 copy {include => misc}/features.h (100%)
 copy {include => misc}/gnu-versions.h (100%)
 copy {include => misc}/gnu/libc-version.h (100%)
 copy {include => misc}/limits.h (100%)
 copy {include => misc}/stdc-predef.h (100%)
 copy {include => misc}/values.h (100%)

diff --git a/Makefile b/Makefile
index dc5de7aa6b..d34aa8bc97 100644
--- a/Makefile
+++ b/Makefile
@@ -59,17 +59,11 @@ endif # $(AUTOCONF) = no
 		   subdir_objs subdir_stubs subdir_testclean		\
 		   $(addprefix install-, no-libc.a bin lib data headers others)
 
-headers := limits.h values.h features.h gnu-versions.h \
-	   bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \
-	   bits/libc-header-start.h
+headers :=
 
 echo-headers: subdir_echo-headers
 
-# The headers are in the include directory.
-subdir-dirs = include
-vpath %.h $(subdir-dirs)
-
-# What to install.
+# This header is created during the install process.  See below.
 install-others = $(inst_includedir)/gnu/stubs.h
 install-bin-script =
 
@@ -311,34 +305,6 @@ $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
 	  "$(includedir)" "$(objpfx)" < /dev/null > $@; \
 	$(evaluate-test)
 
-ifneq "$(headers)" ""
-# Special test of all the installed headers in this directory.
-tests-special += $(objpfx)check-installed-headers-c.out
-libof-check-installed-headers-c := testsuite
-$(objpfx)check-installed-headers-c.out: \
-    scripts/check-installed-headers.sh $(headers)
-	$(SHELL) $(..)scripts/check-installed-headers.sh c \
-	  "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
-	  $(headers) > $@; \
-	$(evaluate-test)
-
-ifneq "$(CXX)" ""
-tests-special += $(objpfx)check-installed-headers-cxx.out
-libof-check-installed-headers-cxx := testsuite
-$(objpfx)check-installed-headers-cxx.out: \
-    scripts/check-installed-headers.sh $(headers)
-	$(SHELL) $(..)scripts/check-installed-headers.sh c++ \
-	  "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
-	  $(headers) > $@; \
-	$(evaluate-test)
-endif # $(CXX)
-
-tests-special += $(objpfx)check-wrapper-headers.out
-$(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers)
-	$(PYTHON) $< --root=. --subdir=. $(headers) \
-	  --generated $(common-generated) > $@; $(evaluate-test)
-endif # $(headers)
-
 define summarize-tests
 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
 @echo "Summary of test results$2:"
diff --git a/include/bits/xopen_lim.h b/include/bits/xopen_lim.h
dissimilarity index 100%
index b76a94bd14..9c2c1ecf9b 100644
--- a/include/bits/xopen_lim.h
+++ b/include/bits/xopen_lim.h
@@ -?,? +1 @@
+#include <misc/bits/xopen_lim.h>
diff --git a/include/features.h b/include/features.h
dissimilarity index 100%
index e016b3e5c7..504a6848bc 100644
--- a/include/features.h
+++ b/include/features.h
@@ -?,? +1 @@
+#include <misc/features.h>
diff --git a/include/gnu-versions.h b/include/gnu-versions.h
dissimilarity index 100%
index 6db552a700..eafc8c842d 100644
--- a/include/gnu-versions.h
+++ b/include/gnu-versions.h
@@ -?,? +1 @@
+#include <misc/gnu-versions.h>
diff --git a/include/gnu/libc-version.h b/include/gnu/libc-version.h
dissimilarity index 100%
index 0e2e91b6e6..745fb5bbd2 100644
--- a/include/gnu/libc-version.h
+++ b/include/gnu/libc-version.h
@@ -?,? +1 @@
+#include <misc/gnu/libc-version.h>
diff --git a/include/limits.h b/include/limits.h
dissimilarity index 100%
index 08bb5248be..9eb278c69b 100644
--- a/include/limits.h
+++ b/include/limits.h
@@ -?,? +1 @@
+#include <misc/limits.h>
diff --git a/include/stdc-predef.h b/include/stdc-predef.h
dissimilarity index 100%
index 5cc5eef22f..0a8122ae37 100644
--- a/include/stdc-predef.h
+++ b/include/stdc-predef.h
@@ -?,? +1 @@
+#include <misc/stdc-predef.h>
diff --git a/include/values.h b/include/values.h
dissimilarity index 100%
index ae987a5675..56ad18e803 100644
--- a/include/values.h
+++ b/include/values.h
@@ -?,? +1 @@
+#include <misc/values.h>
diff --git a/misc/Makefile b/misc/Makefile
index 032f28fc38..e6c73896cd 100644
--- a/misc/Makefile
+++ b/misc/Makefile
@@ -23,21 +23,22 @@ subdir	:= misc
 
 include ../Makeconfig
 
-headers	:= sys/uio.h bits/uio-ext.h bits/uio_lim.h \
-	   sys/ioctl.h bits/ioctls.h bits/ioctl-types.h \
-	   sys/ptrace.h sys/file.h sys/dir.h sys/cdefs.h \
-	   ar.h a.out.h libgen.h stab.h bits/stab.def sgtty.h \
-	   ttyent.h paths.h sys/reboot.h \
-	   sys/mman.h sys/param.h bits/param.h \
-	   fstab.h mntent.h search.h err.h error.h \
-	   sys/queue.h sysexits.h syscall.h sys/syscall.h sys/swap.h \
-	   sys/select.h sys/sysinfo.h \
-	   regexp.h bits/select.h bits/mman.h sys/xattr.h \
-	   syslog.h sys/syslog.h \
-	   bits/syslog.h bits/syslog-ldbl.h bits/syslog-path.h bits/error.h \
-	   bits/select2.h bits/hwcap.h sys/auxv.h \
-	   sys/sysmacros.h bits/sysmacros.h bits/types/struct_iovec.h \
-	   bits/err-ldbl.h bits/error-ldbl.h
+headers :=								\
+	a.out.h ar.h err.h error.h features.h fstab.h gnu-versions.h	\
+	libgen.h limits.h mntent.h paths.h regexp.h search.h sgtty.h	\
+	stab.h stdc-predef.h syscall.h sysexits.h syslog.h ttyent.h	\
+	values.h							\
+	bits/err-ldbl.h bits/error-ldbl.h bits/error.h bits/hwcap.h	\
+	bits/ioctl-types.h bits/ioctls.h bits/libc-header-start.h	\
+	bits/mman.h bits/param.h bits/select.h bits/select2.h		\
+	bits/stab.def bits/syslog-ldbl.h bits/syslog-path.h		\
+	bits/syslog.h bits/sysmacros.h bits/types/struct_iovec.h	\
+	bits/uio-ext.h bits/uio_lim.h bits/xopen_lim.h			\
+	gnu/libc-version.h						\
+	sys/auxv.h sys/cdefs.h sys/dir.h sys/file.h sys/ioctl.h		\
+	sys/mman.h sys/param.h sys/ptrace.h sys/queue.h sys/reboot.h	\
+	sys/select.h sys/swap.h sys/syscall.h sys/sysinfo.h		\
+	sys/syslog.h sys/sysmacros.h sys/uio.h sys/xattr.h
 
 routines := brk sbrk sstk ioctl \
 	    readv writev preadv preadv64 pwritev pwritev64 \
diff --git a/include/bits/xopen_lim.h b/misc/bits/xopen_lim.h
similarity index 100%
copy from include/bits/xopen_lim.h
copy to misc/bits/xopen_lim.h
diff --git a/include/features.h b/misc/features.h
similarity index 100%
copy from include/features.h
copy to misc/features.h
diff --git a/include/gnu-versions.h b/misc/gnu-versions.h
similarity index 100%
copy from include/gnu-versions.h
copy to misc/gnu-versions.h
diff --git a/include/gnu/libc-version.h b/misc/gnu/libc-version.h
similarity index 100%
copy from include/gnu/libc-version.h
copy to misc/gnu/libc-version.h
diff --git a/include/limits.h b/misc/limits.h
similarity index 100%
copy from include/limits.h
copy to misc/limits.h
diff --git a/include/stdc-predef.h b/misc/stdc-predef.h
similarity index 100%
copy from include/stdc-predef.h
copy to misc/stdc-predef.h
diff --git a/include/values.h b/misc/values.h
similarity index 100%
copy from include/values.h
copy to misc/values.h
diff --git a/sysdeps/mach/hurd/bits/errno.h b/sysdeps/mach/hurd/bits/errno.h
index 8f2fbfd80f..8e8d1cc468 100644
--- a/sysdeps/mach/hurd/bits/errno.h
+++ b/sysdeps/mach/hurd/bits/errno.h
@@ -1,6 +1,7 @@
 /* This file generated by errnos.awk from
      errno.texi
      stdc-predef.h
+     ../misc/stdc-predef.h
      libc-symbols.h
      mach/message.h
      mach/kern_return.h
-- 
2.20.1