Minor improvements in modules testing Makefile

* modules/mod-test/Makefile (EMACS, SO): New variables.
(CFLAGS): When SO = dll, don't use -fPIC.
(check): New target, runs the test.

1 files changed, 16 insertions, 4 deletions

diff --git a/modules/mod-test/Makefile b/modules/mod-test/Makefile
index 654c22a7e33..79a88725d08 100644
--- a/modules/mod-test/Makefile
+++ b/modules/mod-test/Makefile
@@ -18,16 +18,28 @@
 # along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
 
 ROOT = ../..
+EMACS = $(ROOT)/src/emacs
 
 CC      = gcc
 LD      = gcc
-CFLAGS  = -ggdb3 -Wall
 LDFLAGS =
 
-all: mod-test.so
+# On MS-Windows, say "make SO=.dll" to build the module
+SO      = so
+# -fPIC is a no-op on Windows, but causes a compiler warning
+ifeq ($(SO),dll)
+CFLAGS  = -ggdb3 -Wall
+else
+CFLAGS  = -ggdb3 -Wall -fPIC
+endif
+
+all: mod-test.$(SO)
 
-%.so: %.o
+%.$(SO): %.o
         $(LD) -shared $(LDFLAGS) -o $@ $<
 
 %.o: %.c
-        $(CC) $(CFLAGS) -I$(ROOT)/src -fPIC -c $<
+        $(CC) $(CFLAGS) -I$(ROOT)/src -c $<
+
+check:
+        $(EMACS) -batch -l ert -l test.el -f ert-run-tests-batch-and-exit