build: introduce --progs-suffix option.

Makefile

@@ -24,8 +24,8 @@ TOOLS       = qt-faststart trasher
 TOOLS-$(CONFIG_ZLIB) += cws2fws
 
 BASENAMES   = ffmpeg avconv ffplay ffprobe ffserver
-ALLPROGS    = $(BASENAMES:%=%$(EXESUF))
-ALLPROGS_G  = $(BASENAMES:%=%_g$(EXESUF))
+ALLPROGS    = $(BASENAMES:%=%$(PROGSSUF)$(EXESUF))
+ALLPROGS_G  = $(BASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
 ALLMANPAGES = $(BASENAMES:%=%.1)
 
 FFLIBS-$(CONFIG_AVDEVICE) += avdevice
@@ -48,9 +48,9 @@ FF_DEP_LIBS  := $(DEP_LIBS)
 
 all: $(PROGS)
 
-$(PROGS): %$(EXESUF): %_g$(EXESUF)
-	$(CP) $< $@
-	$(STRIP) $@
+$(PROGS): %$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
+	$(CP) $< $@$(PROGSSUF)
+	$(STRIP) $@$(PROGSSUF)
 
 $(TOOLS): %$(EXESUF): %.o
 	$(LD) $(LDFLAGS) -o $@ $< $(ELIBS)
@@ -84,7 +84,7 @@ ffplay.o: CFLAGS += $(SDL_CFLAGS)
 ffplay_g$(EXESUF): FF_EXTRALIBS += $(SDL_LIBS)
 ffserver_g$(EXESUF): LDFLAGS += $(FFSERVERLDFLAGS)
 
-%_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
+%$(PROGSSUF)_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
 	$(LD) $(LDFLAGS) -o $@ $< cmdutils.o $(FF_EXTRALIBS)
 
 OBJDIRS += tools

configure

@@ -215,6 +215,7 @@ Advanced options (experts only):
   --extra-libs=ELIBS       add ELIBS [$ELIBS]
   --extra-version=STRING   version string suffix []
   --build-suffix=SUFFIX    library name suffix []
+  --progs-suffix=SUFFIX    program name suffix []
   --arch=ARCH              select architecture [$arch]
   --cpu=CPU                select the minimum required CPU (affects
                            instruction selection, may crash on older CPUs)
@@ -1177,6 +1178,7 @@ CMDLINE_SET="
     arch
     as
     build_suffix
+    progs_suffix
     cc
     cpu
     cross_prefix
@@ -3170,6 +3172,9 @@ echo "ARCH                      $arch ($cpu)"
 if test "$build_suffix" != ""; then
     echo "build suffix              $build_suffix"
 fi
+if test "$progs_suffix" != ""; then
+    echo "progs suffix              $progs_suffix"
+fi
 if test "$extra_version" != ""; then
     echo "version string suffix     $extra_version"
 fi
@@ -3319,6 +3324,7 @@ FFSERVERLDFLAGS=$FFSERVERLDFLAGS
 SHFLAGS=$SHFLAGS
 YASMFLAGS=$YASMFLAGS
 BUILDSUF=$build_suffix
+PROGSSUF=$progs_suffix
 FULLNAME=$FULLNAME
 LIBPREF=$LIBPREF
 LIBSUF=$LIBSUF