[newlib-cygwin] newlib: fix info+man page builds

[Michael Frysinger <vapier@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=866de704f3b5b8f8d297b1adf5e4c5fc62b93c16

commit 866de704f3b5b8f8d297b1adf5e4c5fc62b93c16
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Wed Jan 26 21:41:47 2022 -0500

    newlib: fix info+man page builds
    
    The work to merge libc/machine/ up a dir lost the stub doc targets.
    So when libc/ recursed into machine/, it would stop going deeper as
    the doc rules were empty.  But now that libc/ goes directly into the
    libc/machine/$arch/ and those have never had doc stubs, the build
    fails.  Add a quick hack to the top dir to ignore all machine/$arch/
    dirs when generating docs.  A follow up series will delete all of
    this code as it merges all the doc rules into the top newlib dir.

Diff:
---
 newlib/libc/Makefile.am | 4 ++--
 newlib/libc/Makefile.in | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/newlib/libc/Makefile.am b/newlib/libc/Makefile.am
index 7807291ba..5151e00da 100644
--- a/newlib/libc/Makefile.am
+++ b/newlib/libc/Makefile.am
@@ -199,7 +199,7 @@ stmp-targetdep: force
 	rm -f tmp-targetdep.texi
 	targetdoc=`pwd`/tmp-targetdep.texi; \
 	for d in $(SUBDIRS); do \
-	  if test "$$d" != "."; then \
+	  if test "$$d" != "." && test "$$d" != "$(LIBC_MACHINE_DIR)"; then \
 	    (cd $$d && $(MAKE) TARGETDOC=$${targetdoc} doc) || exit 1; \
 	  fi; \
 	done
@@ -218,7 +218,7 @@ libc_TEXINFOS = sigset.texi posix.texi stdio64.texi iconvset.texi \
 
 docbook-recursive: force
 	for d in $(SUBDIRS); do \
-	  if test "$$d" != "."; then \
+	  if test "$$d" != "." && test "$$d" != "$(LIBC_MACHINE_DIR)"; then \
 	    (cd $$d && $(MAKE) docbook) || exit 1; \
 	  fi; \
 	done
diff --git a/newlib/libc/Makefile.in b/newlib/libc/Makefile.in
index 7e29c18e1..27d014496 100644
--- a/newlib/libc/Makefile.in
+++ b/newlib/libc/Makefile.in
@@ -1185,7 +1185,7 @@ stmp-targetdep: force
 	rm -f tmp-targetdep.texi
 	targetdoc=`pwd`/tmp-targetdep.texi; \
 	for d in $(SUBDIRS); do \
-	  if test "$$d" != "."; then \
+	  if test "$$d" != "." && test "$$d" != "$(LIBC_MACHINE_DIR)"; then \
 	    (cd $$d && $(MAKE) TARGETDOC=$${targetdoc} doc) || exit 1; \
 	  fi; \
 	done
@@ -1199,7 +1199,7 @@ $(SUBDEFS): stmp-targetdep ; @true
 
 docbook-recursive: force
 	for d in $(SUBDIRS); do \
-	  if test "$$d" != "."; then \
+	  if test "$$d" != "." && test "$$d" != "$(LIBC_MACHINE_DIR)"; then \
 	    (cd $$d && $(MAKE) docbook) || exit 1; \
 	  fi; \
 	done