Makefile: Append EXEEXT variable to executable filename rules

If x86_64-w64-mingw32-gcc compiler is called with -o filename option
without any file extension then compiler automatically appends suffix
".exe" to output filename.

This behavior of x86_64-w64-mingw32-gcc compiler basically breaks pattern
rule of type '%: %.o' as x86_64-w64-mingw32-gcc compiler cannot generate
arbitrary output file via -o option just by stripping .o extension from
filename.

When generating executables by x86_64-w64-mingw32-gcc compiler it is
really the best option to specify .exe suffix in -o option.

So introduce a new makefile variable EXEEXT which will be automatically
appended to any executable filename. For Windows and DOS systems set it
to ".exe". For other systems set it just to empty string "".

GNU automake uses same makefile variable for same purpose.

3 files changed, 14 insertions, 9 deletions

diff --git a/.gitignore b/.gitignore
index a797910..4a25863 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 *.a
 *.o
 *.so
+*.exe
 *.[0-9]
 lspci
 setpci
diff --git a/Makefile b/Makefile
index 17a8630..0ce56f6 100644
--- a/Makefile
+++ b/Makefile
@@ -59,7 +59,7 @@ PCIINC_INS=lib/config.h lib/header.h lib/pci.h lib/types.h
 
 export
 
-all: lib/$(PCILIB) lspci setpci example lspci.8 setpci.8 pcilib.7 pci.ids.5 update-pciids update-pciids.8 $(PCI_IDS)
+all: lib/$(PCILIB) lspci$(EXEEXT) setpci$(EXEEXT) example$(EXEEXT) lspci.8 setpci.8 pcilib.7 pci.ids.5 update-pciids update-pciids.8 $(PCI_IDS)
 
 lib/$(PCILIB): $(PCIINC) force
 	$(MAKE) -C lib all
@@ -69,8 +69,8 @@ force:
 lib/config.h lib/config.mk:
 	cd lib && ./configure
 
-lspci: lspci.o ls-vpd.o ls-caps.o ls-caps-vendor.o ls-ecaps.o ls-kernel.o ls-tree.o ls-map.o common.o lib/$(PCILIB)
-setpci: setpci.o common.o lib/$(PCILIB)
+lspci$(EXEEXT): lspci.o ls-vpd.o ls-caps.o ls-caps-vendor.o ls-ecaps.o ls-kernel.o ls-tree.o ls-map.o common.o lib/$(PCILIB)
+setpci$(EXEEXT): setpci.o common.o lib/$(PCILIB)
 
 LSPCIINC=lspci.h pciutils.h $(PCIINC)
 lspci.o: lspci.c $(LSPCIINC)
@@ -84,7 +84,7 @@ ls-map.o: ls-map.c $(LSPCIINC)
 setpci.o: setpci.c pciutils.h $(PCIINC)
 common.o: common.c pciutils.h $(PCIINC)
 
-lspci: LDLIBS+=$(LIBKMOD_LIBS)
+lspci$(EXEEXT): LDLIBS+=$(LIBKMOD_LIBS)
 ls-kernel.o: CFLAGS+=$(LIBKMOD_CFLAGS)
 
 update-pciids: update-pciids.sh
@@ -92,10 +92,10 @@ update-pciids: update-pciids.sh
 	chmod +x $@
 
 # The example of use of libpci
-example: example.o lib/$(PCILIB)
+example$(EXEEXT): example.o lib/$(PCILIB)
 example.o: example.c $(PCIINC)
 
-%: %.o
+%$(EXEEXT): %.o
 	$(CC) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
 
 %.8 %.7 %.5: %.man
@@ -111,7 +111,7 @@ TAGS:
 
 clean:
 	rm -f `find . -name "*~" -o -name "*.[oa]" -o -name "\#*\#" -o -name TAGS -o -name core -o -name "*.orig"`
-	rm -f update-pciids lspci setpci example lib/config.* *.[578] pci.ids.gz lib/*.pc lib/*.so lib/*.so.* tags
+	rm -f update-pciids lspci$(EXEEXT) setpci$(EXEEXT) example$(EXEEXT) lib/config.* *.[578] pci.ids.gz lib/*.pc lib/*.so lib/*.so.* tags
 	rm -rf maint/dist
 
 distclean: clean
@@ -119,7 +119,7 @@ distclean: clean
 install: all
 # -c is ignored on Linux, but required on FreeBSD
 	$(DIRINSTALL) -m 755 $(DESTDIR)$(SBINDIR) $(DESTDIR)$(IDSDIR) $(DESTDIR)$(MANDIR)/man8 $(DESTDIR)$(MANDIR)/man7 $(DESTDIR)/$(MANDIR)/man5
-	$(INSTALL) -c -m 755 $(STRIP) lspci setpci $(DESTDIR)$(SBINDIR)
+	$(INSTALL) -c -m 755 $(STRIP) lspci$(EXEEXT) setpci$(EXEEXT) $(DESTDIR)$(SBINDIR)
 	$(INSTALL) -c -m 755 update-pciids $(DESTDIR)$(SBINDIR)
 	$(INSTALL) -c -m 644 $(PCI_IDS) $(DESTDIR)$(IDSDIR)
 	$(INSTALL) -c -m 644 lspci.8 setpci.8 update-pciids.8 $(DESTDIR)$(MANDIR)/man8
@@ -156,7 +156,7 @@ endif
 endif
 
 uninstall: all
-	rm -f $(DESTDIR)$(SBINDIR)/lspci $(DESTDIR)$(SBINDIR)/setpci $(DESTDIR)$(SBINDIR)/update-pciids
+	rm -f $(DESTDIR)$(SBINDIR)/lspci$(EXEEXT) $(DESTDIR)$(SBINDIR)/setpci$(EXEEXT) $(DESTDIR)$(SBINDIR)/update-pciids
 	rm -f $(DESTDIR)$(IDSDIR)/$(PCI_IDS)
 	rm -f $(DESTDIR)$(MANDIR)/man8/lspci.8 $(DESTDIR)$(MANDIR)/man8/setpci.8 $(DESTDIR)$(MANDIR)/man8/update-pciids.8
 	rm -f $(DESTDIR)$(MANDIR)/man7/pcilib.7
diff --git a/lib/configure b/lib/configure
index 40f9ff8..ddcad87 100755
--- a/lib/configure
+++ b/lib/configure
@@ -62,6 +62,7 @@ echo >$m 'WITH_LIBS='
 echo_n "Looking for access methods..."
 LIBRESOLV=-lresolv
 LIBEXT=so
+EXEEXT=
 SYSINCLUDE=/usr/include
 
 case $sys in
@@ -139,11 +140,13 @@ case $sys in
 	djgpp)
 		echo_n " i386-ports"
 		echo >>$c '#define PCI_HAVE_PM_INTEL_CONF'
+		EXEEXT=.exe
 		;;
 	cygwin)
 		echo_n " i386-ports"
 		echo >>$c '#define PCI_HAVE_PM_INTEL_CONF'
 		echo >>$m 'WITH_LIBS+=-lioperm'
+		EXEEXT=.exe
 		;;
 	beos|haiku)
 		case $cpu in
@@ -167,6 +170,7 @@ case $sys in
 esac
 
 echo >>$m "LIBEXT="$LIBEXT
+echo >>$m "EXEEXT="$EXEEXT
 echo >>$c '#define PCI_HAVE_PM_DUMP'
 echo " dump"