refine code style

clean_code.sh

@@ -26,3 +26,4 @@ rm -rf   missing
 rm -rf   pconfig.h.in
 rm -rf   src/Makefile.in
 rm -rf   test/Makefile.in
+find . -name "*.gcno"|xargs rm -rf

configure.in

@@ -32,6 +32,7 @@ build_fontconfig="yes"
 build_fastcopy="yes"
 build_sysmalloc="no"
 build_lowmem="no"
+build_coverage="no"
 
 format_rgba="yes"
 format_argb="yes"
@@ -67,6 +68,10 @@ AC_ARG_ENABLE(fastcopy,
 [  --enable-fastcopy     Build Fast Memory Copy used support  <default=yes>],
 build_fastcopy=$enableval)
 
+AC_ARG_ENABLE(coverage,
+[  --enable-coverage     Build Code coverage test  <default=no>],
+build_coverage=$enableval)
+
 AC_ARG_ENABLE(sysmalloc,
 [  --enable-sysmalloc     Build System Memory Allocator
                          (new/delete/malloc/free/realloc/calloc) used support  <default=no>],
@@ -279,6 +284,11 @@ if test "x$build_image" = "xyes"; then
     fi
 fi
 
+if test "x$build_coverage" = "xyes"; then
+    CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
+    CXXFLAGS="$CXXFLAGS -fprofile-arcs -ftest-coverage"
+fi
+
 AM_CONDITIONAL(PSX_IMAGE_SUPPORT, test "x$build_image" = "xyes")
 AM_CONDITIONAL(PSX_IMAGE_GIF_SUPPORT, test "x$build_gif_support" = "xyes")
 AM_CONDITIONAL(PSX_IMAGE_PNG_SUPPORT, test "x$build_png_support" = "xyes")