completion/test: only enable if bash is available

Refs #675

Signed-off-by: Brice Goglin <[email protected]>
(cherry picked from commit 705a036)

Author: bgoglin

config/hwloc.m4

@@ -856,8 +856,6 @@ return 0;
       AC_DEFINE_UNQUOTED(hwloc_thread_t, $hwloc_thread_t, [Define this to the thread ID type])
     fi
 
-    AC_PATH_PROG([BASH], [bash])
-
     AC_CHECK_FUNCS([ffs], [
       _HWLOC_CHECK_DECL([ffs],[
         AC_DEFINE([HWLOC_HAVE_DECL_FFS], [1], [Define to 1 if function `ffs' is declared by system headers])
@@ -1871,6 +1869,7 @@ AC_DEFUN([HWLOC_DO_AM_CONDITIONALS],[
         AM_CONDITIONAL([HWLOC_GL_BUILD_STATIC], [test "x$hwloc_gl_component" = "xstatic"])
         AM_CONDITIONAL([HWLOC_XML_LIBXML_BUILD_STATIC], [test "x$hwloc_xml_libxml_component" = "xstatic"])
 
+        AM_CONDITIONAL([HWLOC_HAVE_BASH], [test "x$BASH" != "x"])
         AM_CONDITIONAL([HWLOC_HAVE_CXX], [test "x$hwloc_have_cxx" = "xyes"])
         AM_CONDITIONAL([HWLOC_CROSS_COMPILING], [test "x$cross_compiling" = "xyes"])
     ])

config/hwloc_internal.m4

@@ -462,6 +462,8 @@ EOF
 		   ])
     ])
 
+    AC_PATH_PROG([BASH], [bash])
+
     AC_CHECK_PROGS(XMLLINT, [xmllint])
 
     AC_CHECK_PROGS(BUNZIPP, bunzip2, false)

contrib/completion/Makefile.am

@@ -7,6 +7,9 @@
 bashcompletionsdir = $(datadir)/bash-completion/completions
 dist_bashcompletions_DATA = bash/hwloc
 
+if HWLOC_HAVE_BASH
+# no need to test everywhere, Linux is enough
 if HWLOC_HAVE_LINUX
 TESTS = test-bash-completion.sh
 endif
+endif