From: Justin Wind <justin.wind@gmail.com>
Date: Fri, 4 May 2012 21:45:28 +0000 (-0700)
Subject: minor linux portability for buffered image writes
X-Git-Url: http://git.squeep.com/?p=dcpu16;a=commitdiff_plain;h=db943a12b03f048f4f135c38a96e9ee0aa3c7a48

minor linux portability for buffered image writes
---

diff --git a/Makefile b/Makefile
index 70445ff..fdd94d2 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,9 @@ ifeq ($(UNAME),Darwin)
 CPPFLAGS += -DHAVE_FUNOPEN
 endif
 ifeq ($(UNAME),Linux)
-CPPFLAGS += -DHAVE_FOPENCOOKIE -D_XOPEN_SOURCE=600
+# linux needs _GNU_SOURCE for fopencookie
+# linux needs _XOPEN_SOURCE=600 (provided by _GNU_SOURCE) for getopt and strdup
+CPPFLAGS += -DHAVE_FOPENCOOKIE -D_GNU_SOURCE
 endif
 
 
diff --git a/display.c b/display.c
index b6488a5..9d59b29 100644
--- a/display.c
+++ b/display.c
@@ -115,7 +115,13 @@ void memstream_cookie_fini_(struct memstream_cookie_ *c) {
 }
 
 static
-int memstream_write_fn_(void *c, const char *buf, int size) {
+/* of course these can't be the same */
+#ifdef HAVE_FOPENCOOKIE
+ssize_t memstream_write_fn_(void *c, const char *buf, size_t size)
+#else /* HAVE_FOPENCOOKIE */
+int memstream_write_fn_(void *c, const char *buf, int size)
+#endif /* HAVE_FOPENCOOKIE */
+{
     struct memstream_cookie_ *cookie = c;
 
     while ((size_t)size + cookie->offset > cookie->allocated) {
@@ -227,7 +233,7 @@ void display_png_write_(struct dcpu16_display_ *d) {
 
 #ifdef HAVE_FOPENCOOKIE
     /* linux-style memory stream */
-    struct cookie_io_functions_t cookie_io_functions = {
+    cookie_io_functions_t cookie_io_functions = {
         .read = NULL,
         .write = memstream_write_fn_,
         .seek = NULL,