[gjs: 13/26] build: Move locale choosing into separate script

[Cosimo Cecchi <cosimoc src gnome org>]

commit 94933c9c3478f3e1464ea94d72c50c25d57b9757
Author: Philip Chimento <philip chimento gmail com>
Date:   Sun Mar 17 20:40:57 2019 -0700

    build: Move locale choosing into separate script
    
    In order to port to Meson in the future, we'll need to have this
    functionality in a separate script. Splitting it out now and using the
    script in the Autotools build will be handy if we decide to keep the two
    build systems in parallel for a while.

 Makefile.am                  |  1 +
 build/choose-tests-locale.sh | 22 ++++++++++++++++++++++
 configure.ac                 | 17 +----------------
 3 files changed, 24 insertions(+), 16 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 2ef69a31..6e555780 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -166,6 +166,7 @@ include Makefile-insttest.am
 
 EXTRA_DIST +=                                  \
        autogen.sh                              \
+       build/choose-tests-locale.sh            \
        COPYING.LGPL                            \
        doc/ByteArray.md                        \
        doc/cairo.md                            \
diff --git a/build/choose-tests-locale.sh b/build/choose-tests-locale.sh
new file mode 100755
index 00000000..e0489372
--- /dev/null
+++ b/build/choose-tests-locale.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+locales=$(locale -a)
+
+case $locales in
+  # Prefer C.UTF-8 although it is only available with newer libc
+  *C.UTF-8*) tests_locale=C.UTF-8 ;;
+
+  # Most systems will probably have this
+  *en_US.UTF-8*) tests_locale=en_US.UTF-8 ;;
+  *en_US.utf8*) tests_locale=en_US.utf8 ;;
+
+  # If not, fall back to any English UTF-8 locale or any UTF-8 locale at all
+  *en_*.UTF-8*) tests_locale=$(echo $locales | grep -m1 en_.\*\\.UTF-8) ;;
+  *en_*.utf8*) tests_locale=$(echo $locales | grep -m1 en_.\*\\.utf8) ;;
+  *.UTF-8*) tests_locale=$(echo $locales | grep -m1 \\.UTF-8) ;;
+  *.utf8*) tests_locale=$(echo $locales | grep -m1 \\.utf8) ;;
+
+  *) tests_locale=C ;;
+esac
+
+echo $tests_locale
diff --git a/configure.ac b/configure.ac
index 0d65decc..71bdffb4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -339,22 +339,7 @@ AS_IF([test "x$with_dbus_tests" != "xno"], [
 AM_CONDITIONAL([DBUS_TESTS], [test "x$with_dbus_tests" != "xno"])
 
 AC_MSG_CHECKING([for a suitable UTF-8 locale to run the tests in])
-LOCALES=$(locale -a)
-AS_CASE([$LOCALES],
-  dnl Prefer C.UTF-8 although it is only available with newer libc
-  [*C.UTF-8*], [TESTS_LOCALE=C.UTF-8],
-
-  dnl Most systems will probably have this
-  [*en_US.UTF-8*], [TESTS_LOCALE=en_US.UTF-8],
-  [*en_US.utf8*], [TESTS_LOCALE=en_US.utf8],
-
-  dnl If not, fall back to any English UTF-8 locale or any UTF-8 locale at all
-  [*en_*.UTF-8*], [TESTS_LOCALE=$(echo $LOCALES | grep -m1 en_.\*\\.UTF-8)],
-  [*en_*.utf8*], [TESTS_LOCALE=$(echo $LOCALES | grep -m1 en_.\*\\.utf8)],
-  [*.UTF-8*], [TESTS_LOCALE=$(echo $LOCALES | grep -m1 \\.UTF-8)],
-  [*.utf8*], [TESTS_LOCALE=$(echo $LOCALES | grep -m1 \\.utf8)],
-
-  [TESTS_LOCALE=C])
+TESTS_LOCALE=$($srcdir/build/choose-tests-locale.sh)
 AC_MSG_RESULT([$TESTS_LOCALE])
 AC_SUBST([TESTS_LOCALE])