Make autoconf-based build quiet by default.

Add V=1 to the make command line will show the full commands but by default
we just show the tool-type and the output file.  This is generally much easier
on the eye and makes warnings and errors more clearly visible.

Makefile.in

@@ -42,6 +42,15 @@ SDLTEST_OBJECTS = @SDLTEST_OBJECTS@
 SRC_DIST = *.txt acinclude Android.mk autogen.sh android-project build-scripts cmake configure configure.in debian include Makefile.* sdl2-config.in sdl2.m4 sdl2.pc.in SDL2.spec.in src test VisualC.html VisualC Xcode Xcode-iOS
 GEN_DIST = SDL2.spec
 
+ifneq ($V,1)
+RUN_CMD_AR     = @echo "  AR    " $@;
+RUN_CMD_CC     = @echo "  CC    " $@;
+RUN_CMD_CXX    = @echo "  CXX   " $@;
+RUN_CMD_LTLINK = @echo "  LTLINK" $@;
+RUN_CMD_RANLIB = @echo "  RANLIB" $@;
+LIBTOOL += --quiet
+endif
+
 HDRS = \
 	SDL.h \
 	SDL_assert.h \
@@ -129,15 +138,15 @@ update-revision:
 .PHONY: all update-revision install install-bin install-hdrs install-lib install-data uninstall uninstall-bin uninstall-hdrs uninstall-lib uninstall-data clean distclean dist $(OBJECTS:.lo=.d)
 
 $(objects)/$(TARGET): $(OBJECTS) $(VERSION_OBJECTS)
-	$(LIBTOOL) --tag=CC --mode=link $(CC) -o $@ $(OBJECTS) $(VERSION_OBJECTS) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LT_LDFLAGS)
+	$(RUN_CMD_LTLINK)$(LIBTOOL) --tag=CC --mode=link $(CC) -o $@ $(OBJECTS) $(VERSION_OBJECTS) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LT_LDFLAGS)
 
 $(objects)/$(SDLMAIN_TARGET): $(SDLMAIN_OBJECTS)
-	$(AR) cru $@ $(SDLMAIN_OBJECTS)
-	$(RANLIB) $@
+	$(RUN_CMD_AR)$(AR) cru $@ $(SDLMAIN_OBJECTS)
+	$(RUN_CMD_RANLIB)$(RANLIB) $@
 
 $(objects)/$(SDLTEST_TARGET): $(SDLTEST_OBJECTS)
-	$(AR) cru $@ $(SDLTEST_OBJECTS)
-	$(RANLIB) $@
+	$(RUN_CMD_AR)$(AR) cru $@ $(SDLTEST_OBJECTS)
+	$(RUN_CMD_RANLIB)$(RANLIB) $@
 
 install: all install-bin install-hdrs install-lib install-data
 install-bin:

configure

     OBJECTS=`echo "$OBJECTS" | sed 's,[^ ]*/\([^ ]*\)\.'$EXT',$(objects)/\1.lo,g'`
     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([^ ]*\\)/\\([^ ]*\\)\\.$EXT\\$,\\\\
 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
-	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
+	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 done
 
 VERSION_OBJECTS=`echo $VERSION_SOURCES`
 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[^ ]*/\([^ ]*\)\.c,$(objects)/\1.o,g'`
 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([^ ]*\\)/\\([^ ]*\\)\\.c,\\\\
 \\$(objects)/\\2.o: \\1/\\2.c\\\\
-	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
+	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[^ ]*/\([^ ]*\)\.c,$(objects)/\1.o,g'`
 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([^ ]*\\)/\\([^ ]*\\)\\.c,\\\\
 \\$(objects)/\\2.o: \\1/\\2.c\\\\
-	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
+	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 # Set runtime shared library paths as needed
 

configure.in

@@ -3228,7 +3228,7 @@ for EXT in asm cc m c S; do
     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
 \\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
-	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
+	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 done
 
 VERSION_OBJECTS=`echo $VERSION_SOURCES`
@@ -3243,14 +3243,14 @@ SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
 \\$(objects)/\\2.o: \\1/\\2.c\\\\
-	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
+	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.o,g'`
 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
 \\$(objects)/\\2.o: \\1/\\2.c\\\\
-	\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
+	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 # Set runtime shared library paths as needed