krb5 commit [krb5-1.14]: Fix directory changes to use explicit subshells

[Tom Yu]

https://github.com/krb5/krb5/commit/913b555c6108afd7df6670a0232dd9075621c6fa
commit 913b555c6108afd7df6670a0232dd9075621c6fa
Author: Robbie Harwood <rharwood at redhat.com>
Date:   Fri Sep 2 14:53:59 2016 -0400

    Fix directory changes to use explicit subshells
    
    We depend on the behavior of having a separate subshell for each line in
    our Makefiles, so force it where make (observed FreeBSD 10.3) does not
    create one.
    
    [ghudson at mit.edu: also changed rules in config/post.in]
    
    (back ported from commit 69571141ccc2483b54e015a5d7c77d1e926f2822)
    
    ticket: 8492
    version_fixed: 1.14.4

 src/build-tools/Makefile.in            |    2 +-
 src/config/post.in                     |    8 ++++----
 src/doc/Makefile.in                    |    4 ++--
 src/include/Makefile.in                |    2 +-
 src/kadmin/testing/scripts/Makefile.in |    4 ++--
 src/lib/rpc/Makefile.in                |    2 +-
 6 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/src/build-tools/Makefile.in b/src/build-tools/Makefile.in
index 271c002..e6ab8a7 100644
--- a/src/build-tools/Makefile.in
+++ b/src/build-tools/Makefile.in
@@ -14,7 +14,7 @@ PKGCONFIG_FILES = \
 all-unix:: krb5-config $(PKGCONFIG_FILES)
 
 krb5-config $(PKGCONFIG_FILES): $(BUILDTOP)/config.status
-	cd $(BUILDTOP) && $(SHELL) config.status $(mydir)/$@
+	(cd $(BUILDTOP) && $(SHELL) config.status $(mydir)/$@)
 krb5-config: $(srcdir)/krb5-config.in
 kadm-client.pc: $(srcdir)/kadm-client.pc.in
 kadm-server.pc: $(srcdir)/kadm-server.pc.in
diff --git a/src/config/post.in b/src/config/post.in
index 07816ed..fb34fba 100644
--- a/src/config/post.in
+++ b/src/config/post.in
@@ -170,9 +170,9 @@ Makefiles-prerecurse: Makefile
 # mydir = relative path from top to this Makefile
 Makefile: $(srcdir)/Makefile.in $(srcdir)/deps $(BUILDTOP)/config.status \
 		$(top_srcdir)/config/pre.in $(top_srcdir)/config/post.in
-	cd $(BUILDTOP) && $(SHELL) config.status $(mydir)/Makefile
+	(cd $(BUILDTOP) && $(SHELL) config.status $(mydir)/Makefile)
 $(BUILDTOP)/config.status: $(top_srcdir)/configure
-	cd $(BUILDTOP) && $(SHELL) config.status --recheck
+	(cd $(BUILDTOP) && $(SHELL) config.status --recheck)
 # autom4te.cache supposedly improves performance with multiple runs, but
 # it breaks across versions, and around MIT we've got plenty of version
 # mixing.  So nuke it.
@@ -181,8 +181,8 @@ $(top_srcdir)/configure: @MAINT@ \
 		$(top_srcdir)/patchlevel.h \
 		$(top_srcdir)/aclocal.m4
 	-$(RM) -r $(top_srcdir)/autom4te.cache
-	cd $(top_srcdir) && \
-		$(AUTOCONF) --include=$(CONFIG_RELTOPDIR) $(AUTOCONFFLAGS)
+	(cd $(top_srcdir) && \
+		$(AUTOCONF) --include=$(CONFIG_RELTOPDIR) $(AUTOCONFFLAGS))
 	-$(RM) -r $(top_srcdir)/autom4te.cache
 
 RECURSE_TARGETS=all-recurse clean-recurse distclean-recurse install-recurse \
diff --git a/src/doc/Makefile.in b/src/doc/Makefile.in
index 0963a8f..792c7bc 100644
--- a/src/doc/Makefile.in
+++ b/src/doc/Makefile.in
@@ -93,8 +93,8 @@ pdf: $(PDFDIR)
 composite: Doxyfile $(docsrc)/version.py
 	rm -rf doxy rst_apiref rst_composite
 	$(DOXYGEN)
-	cwd=`pwd`; cd $(docsrc)/tools && \
-		$(PYTHON) doxy.py -i $$cwd/doxy/xml -o $$cwd/rst_apiref
+	(cwd=`pwd`; cd $(docsrc)/tools && \
+		$(PYTHON) doxy.py -i $$cwd/doxy/xml -o $$cwd/rst_apiref)
 	mkdir -p rst_composite
 	do_subdirs="$(RST_SOURCES)" ; \
 	for i in $$do_subdirs; do \
diff --git a/src/include/Makefile.in b/src/include/Makefile.in
index b160ea4..45f7469 100644
--- a/src/include/Makefile.in
+++ b/src/include/Makefile.in
@@ -35,7 +35,7 @@ all-unix:: @MAINT@ verify-calling-conventions-krb5
 $(srcdir)/autoconf.h.in: @MAINT@ $(srcdir)/autoconf.stmp
 $(srcdir)/autoconf.stmp: $(top_srcdir)/configure.in $(top_srcdir)/aclocal.m4
 	$(RM) -r $(top_srcdir)/autom4te.cache
-	cd $(top_srcdir) && $(AUTOHEADER) --include=$(CONFIG_RELTOPDIR) $(AUTOHEADERFLAGS)
+	(cd $(top_srcdir) && $(AUTOHEADER) --include=$(CONFIG_RELTOPDIR) $(AUTOHEADERFLAGS))
 	touch $(srcdir)/autoconf.stmp
 	$(RM) -r $(top_srcdir)/autom4te.cache
 
diff --git a/src/kadmin/testing/scripts/Makefile.in b/src/kadmin/testing/scripts/Makefile.in
index 1e14d61..725a7ac 100644
--- a/src/kadmin/testing/scripts/Makefile.in
+++ b/src/kadmin/testing/scripts/Makefile.in
@@ -14,9 +14,9 @@ all:: env-setup.sh $(GEN_SCRIPTS)
 env-setup.sh: env-setup.stamp
 env-setup.stamp: $(srcdir)/env-setup.shin $(BUILDTOP)/config.status \
 		Makefile 
-	cd $(BUILDTOP) && \
+	(cd $(BUILDTOP) && \
 		CONFIG_FILES=$(mydir)/env-setup.sh:$(mydir)/env-setup.shin $(SHELL) \
-		config.status
+		config.status)
 	chmod +x env-setup.sh
 	touch env-setup.stamp
 
diff --git a/src/lib/rpc/Makefile.in b/src/lib/rpc/Makefile.in
index 487dcff..e546747 100644
--- a/src/lib/rpc/Makefile.in
+++ b/src/lib/rpc/Makefile.in
@@ -221,7 +221,7 @@ do-dyn-lclint::
 
 $(BUILDTOP)/include/gssrpc/types.h: types.stamp
 types.stamp: $(top_srcdir)/include/gssrpc/types.hin $(BUILDTOP)/config.status
-	cd $(BUILDTOP) && $(SHELL) config.status include/gssrpc/types.h
+	(cd $(BUILDTOP) && $(SHELL) config.status include/gssrpc/types.h)
 	touch types.stamp
 
 clean-unix::