[PATCH] timezone: add a configure flag to disable program install

[Mike Frysinger <vapier at gentoo dot org>]

Some distros build+install the timezone tools (zic/zdump/tzselect) outside
of glibc and use the upstream package directly.  Add a configure flag to
glibc so they can disable install of those tools.

This allows tests to run & pass regardless of the configure flag.  Only
the install of them is impacted.

2015-09-18  Mike Frysinger  <vapier@gentoo.org>

	* config.make.in (with-timezone-tools): New variable.
	* configure.ac (AC_ARG_WITH(timezone-tools)): New configure flag.
	(with_timezone_tools): Export to generated files.
	* configure: Regenerate.
	* timezone/Makefile (install-sbin, install-bin-script): Wrap in a
	ifeq ($(with-timezone-tools),yes) check.
---
 config.make.in    |  1 +
 configure         | 14 ++++++++++++++
 configure.ac      |  6 ++++++
 timezone/Makefile |  8 +++++---
 4 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/config.make.in b/config.make.in
index a9f5696..fe773d6 100644
--- a/config.make.in
+++ b/config.make.in
@@ -52,6 +52,7 @@ have-z-execstack = @libc_cv_z_execstack@
 have-Bgroup = @libc_cv_Bgroup@
 have-protected-data = @libc_cv_protected_data@
 with-fp = @with_fp@
+with-timezone-tools = @with_timezone_tools@
 old-glibc-headers = @old_glibc_headers@
 unwind-find-fde = @libc_cv_gcc_unwind_find_fde@
 have-forced-unwind = @libc_cv_forced_unwind@
diff --git a/configure b/configure
index 45cc7cb..8fae00f 100755
--- a/configure
+++ b/configure
@@ -678,6 +678,7 @@ enable_lock_elision
 hardcoded_path_in_tests
 use_default_link
 sysheaders
+with_timezone_tools
 with_fp
 ac_ct_CXX
 CXXFLAGS
@@ -754,6 +755,7 @@ with_gd_lib
 with_fp
 with_binutils
 with_selinux
+with_timezone_tools
 with_headers
 with_default_link
 enable_sanity_checks
@@ -1457,6 +1459,9 @@ Optional Packages:
   --with-fp               if using floating-point hardware [default=yes]
   --with-binutils=PATH    specify location of binutils (as and ld)
   --with-selinux          if building with SELinux support
+  --without-timezone-tools
+                          do not install timezone tools (if using external
+                          ones) [default=install]
   --with-headers=PATH     location of system headers to use (for example
                           /usr/src/linux/include) [default=compiler default]
   --with-default-link     do not use explicit linker scripts
@@ -3506,6 +3511,15 @@ else
 fi
 
 
+# Check whether --with-timezone-tools was given.
+if test "${with_timezone_tools+set}" = set; then :
+  withval=$with_timezone_tools; with_timezone_tools=$withval
+else
+  with_timezone_tools=yes
+fi
+
+
+
 
 # Check whether --with-headers was given.
 if test "${with_headers+set}" = set; then :
diff --git a/configure.ac b/configure.ac
index 7e9383a..e397948 100644
--- a/configure.ac
+++ b/configure.ac
@@ -126,6 +126,12 @@ AC_ARG_WITH([selinux],
 			   [if building with SELinux support]),
 	    [with_selinux=$withval],
 	    [with_selinux=auto])
+AC_ARG_WITH([timezone-tools],
+	    AC_HELP_STRING([--without-timezone-tools],
+			   [do not install timezone tools (if using external ones) @<:@default=install@:>@]),
+	    [with_timezone_tools=$withval],
+	    [with_timezone_tools=yes])
+AC_SUBST(with_timezone_tools)
 
 AC_ARG_WITH([headers],
 	    AC_HELP_STRING([--with-headers=PATH],
diff --git a/timezone/Makefile b/timezone/Makefile
index d1d9d4b..b91fb01 100644
--- a/timezone/Makefile
+++ b/timezone/Makefile
@@ -27,15 +27,17 @@ extra-objs := scheck.o ialloc.o
 others	:= zdump zic
 tests	:= test-tz tst-timezone tst-tzset
 
-install-sbin := zic zdump
-
 generated-dirs += testdata
 
-install-bin-script = tzselect
 generated += tzselect
 
 testdata = $(objpfx)testdata
 
+ifeq ($(with-timezone-tools),yes)
+install-sbin := zic zdump
+install-bin-script = tzselect
+endif
+
 ifeq ($(run-built-tests),yes)
 # List zones generated by separate commands running zic on the host.
 # Each such zic run counts as a separate test.
-- 
2.5.1