# HG changeset patch
# User Eric Blake <ebb9@byu.net>
# Date 1251731550 21600
# Node ID c455cd9841a853c83d724bab5ca89a298766a6f4
# Parent  79f4b013feab76a082154cc288e969c962d28cf9
canonicalize: allow cross-testing from cygwin to mingw

* modules/canonicalize-tests (configure.ac): Define HAVE_SYMLINK.
(Makefile.am): Pass it through TESTS_ENVIRONMENT.
* modules/canonicalize-lgpl-tests (configure.ac, Makefile.am):
Likewise.
* tests/test-canonicalize.sh: Also skip test if 'ln -s' works, but
target does not support symlinks.
* tests/test-canonicalize-lgpl.sh: Likewise.

Signed-off-by: Eric Blake <ebb9@byu.net>

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2009-08-31  Eric Blake  <ebb9@byu.net>
 
+	canonicalize: allow cross-testing from cygwin to mingw
+	* modules/canonicalize-tests (configure.ac): Define HAVE_SYMLINK.
+	(Makefile.am): Pass it through TESTS_ENVIRONMENT.
+	* modules/canonicalize-lgpl-tests (configure.ac, Makefile.am):
+	Likewise.
+	* tests/test-canonicalize.sh: Also skip test if 'ln -s' works, but
+	target does not support symlinks.
+	* tests/test-canonicalize-lgpl.sh: Likewise.
+
 	chown: avoid compilation warning on mingw
 	* m4/chown.m4 (gl_FUNC_CHOWN): Recognize missing chown.
 	* lib/chown.c (rpl_chown) [!HAVE_CHOWN]: Always return failure on
diff --git a/modules/canonicalize-lgpl-tests b/modules/canonicalize-lgpl-tests
--- a/modules/canonicalize-lgpl-tests
+++ b/modules/canonicalize-lgpl-tests
@@ -5,9 +5,12 @@
 Depends-on:
 
 configure.ac:
+AC_CHECK_FUNCS_ONCE([symlink])
+HAVE_SYMLINK=$ac_cv_func_symlink
+AC_SUBST([HAVE_SYMLINK])
 
 Makefile.am:
 TESTS += test-canonicalize-lgpl.sh
-TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@'
+TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' HAVE_SYMLINK='$(HAVE_SYMLINK)'
 check_PROGRAMS += test-canonicalize-lgpl
 test_canonicalize_lgpl_LDADD = $(LDADD)
diff --git a/modules/canonicalize-tests b/modules/canonicalize-tests
--- a/modules/canonicalize-tests
+++ b/modules/canonicalize-tests
@@ -5,9 +5,12 @@
 Depends-on:
 
 configure.ac:
+AC_CHECK_FUNCS_ONCE([symlink])
+HAVE_SYMLINK=$ac_cv_func_symlink
+AC_SUBST([HAVE_SYMLINK])
 
 Makefile.am:
 TESTS += test-canonicalize.sh
-TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@'
+TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' HAVE_SYMLINK='$(HAVE_SYMLINK)'
 check_PROGRAMS += test-canonicalize
 test_canonicalize_LDADD = $(LDADD) @LIBINTL@
diff --git a/tests/test-canonicalize-lgpl.sh b/tests/test-canonicalize-lgpl.sh
--- a/tests/test-canonicalize-lgpl.sh
+++ b/tests/test-canonicalize-lgpl.sh
@@ -5,7 +5,8 @@
 
 tmpfiles="$tmpfiles t-can-lgpl.tmp ise"
 mkdir t-can-lgpl.tmp
-ln -s t-can-lgpl.tmp/ket ise \
+test "x$HAVE_SYMLINK" = xyes \
+  && ln -s t-can-lgpl.tmp/ket ise \
   || { echo "Skipping test: symbolic links not supported on this filesystem"
        rm -fr $tmpfiles
        exit 77
diff --git a/tests/test-canonicalize.sh b/tests/test-canonicalize.sh
--- a/tests/test-canonicalize.sh
+++ b/tests/test-canonicalize.sh
@@ -5,7 +5,8 @@
 
 tmpfiles="$tmpfiles t-can.tmp ise"
 mkdir t-can.tmp
-ln -s t-can.tmp/ket ise \
+test "x$HAVE_SYMLINK" = xyes \
+  && ln -s t-can.tmp/ket ise \
   || { echo "Skipping test: symbolic links not supported on this filesystem"
        rm -fr $tmpfiles
        exit 77