Default to create progs with symbols (incl. debug)

* Set CFLAGS entirely in configure if not already set.
* Compile bcheck.c with the same flags as the other source files
* Don't strip binaries by default (GB are cheap now) but provide a
  --strip-binaries option in configure script.

Makefile

@@ -5,7 +5,6 @@
 TOP ?= .
 include $(TOP)/config.mak
 
-CFLAGS+=-g -Wall
 CFLAGS_P=$(CFLAGS) -pg -static -DCONFIG_TCC_STATIC
 LIBS_P=
 
@@ -217,12 +216,17 @@ libtcc1.a : FORCE
 lib/%/libtcc1.a : FORCE $(PROGS_CROSS)
 	@$(MAKE) -C lib cross TARGET=$*
 bcheck.o : lib/bcheck.c
-	gcc -c $< -o $@ -O2 -Wall
+	gcc -c $< -o $@ $(CFLAGS)
 FORCE:
 
 # install
 TCC_INCLUDES = stdarg.h stddef.h stdbool.h float.h varargs.h tcclib.h
 INSTALL=install
+ifdef STRIP_BINARIES
+INSTALLBIN=$(INSTALL) -s
+else
+INSTALLBIN=$(INSTALL)
+endif
 
 ifndef CONFIG_WIN32
 install: $(PROGS) $(TCCLIBS) $(TCCDOCS)
@@ -230,7 +234,7 @@ install: $(PROGS) $(TCCLIBS) $(TCCDOCS)
 ifeq ($(CC),tcc)
 	$(INSTALL) -m755 $(PROGS) "$(bindir)"
 else
-	$(INSTALL) -s -m755 $(PROGS) "$(bindir)"
+	$(INSTALLBIN) -m755 $(PROGS) "$(bindir)"
 endif
 	mkdir -p "$(mandir)/man1"
 	-$(INSTALL) tcc.1 "$(mandir)/man1"
@@ -291,7 +295,7 @@ install: $(PROGS) $(TCCLIBS) $(TCCDOCS)
 	mkdir -p "$(tccdir)/examples"
 	mkdir -p "$(tccdir)/doc"
 	mkdir -p "$(tccdir)/libtcc"
-	$(INSTALL) -s -m755 $(PROGS) "$(tccdir)"
+	$(INSTALLBIN) -m755 $(PROGS) "$(tccdir)"
 	$(INSTALL) -m644 $(LIBTCC1) win32/lib/*.def "$(tccdir)/lib"
 	cp -r win32/include/. "$(tccdir)/include"
 	cp -r win32/examples/. "$(tccdir)/examples"

configure

@@ -146,6 +146,8 @@ for opt do
   ;;
   --disable-rpath) disable_rpath="yes"
   ;;
+  --strip-binaries) strip_binaries="yes"
+  ;;
   --with-libgcc) use_libgcc="yes"
   ;;
   --with-selinux) have_selinux="yes"
@@ -157,7 +159,7 @@ done
 
 # Checking for CFLAGS
 if test -z "$CFLAGS"; then
-    CFLAGS="-O2"
+    CFLAGS="-Wall -g -O2"
 fi
 
 cc="${cross_prefix}${cc}"
@@ -253,6 +255,7 @@ echo "  --sysroot=PREFIX         prepend PREFIX to library/include paths []"
 echo "  --cc=CC                  use C compiler CC [$cc]"
 echo "  --disable-static         make libtcc.so instead of libtcc.a"
 echo "  --disable-rpath          disable use of -rpath with the above"
+echo "  --strip-binaries         strip symbol tables from resulting binaries"
 echo "  --with-libgcc            use /lib/libgcc_s.so.1 instead of libtcc.a"
 echo "  --enable-mingw32         build windows version on linux with mingw32"
 echo "  --enable-cygwin          build windows version on windows with cygwin"
@@ -419,6 +422,9 @@ fi
 if test "$disable_rpath" = "yes" ; then
   echo "DISABLE_RPATH=yes" >> config.mak
 fi
+if test "$strip_binaries" = "yes" ; then
+  echo "STRIP_BINARIES=yes" >> config.mak
+fi
 if test "$use_libgcc" = "yes" ; then
   echo "#define CONFIG_USE_LIBGCC" >> $TMPH
   echo "CONFIG_USE_LIBGCC=yes" >> config.mak