Compilation fails on system with compiler which uses older C dialect
(e.g. RHEL7; gcc with gnu90) with:
splice2pipe.c: In function 'prepare_pipe':
splice2pipe.c:54:2: error: 'for' loop initial declarations are only allowed in C99 mode
for (unsigned r = pipe_size; r > 0;) {
Fix it by declaring 'r' outside of the loop.
Signed-off-by: Andrey Albershteyn <aalbersh@xxxxxxxxxx>
---
src/splice2pipe.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/splice2pipe.c b/src/splice2pipe.c
index bd33ff67..00b3a23a 100644
--- a/src/splice2pipe.c
+++ b/src/splice2pipe.c
@@ -41,6 +41,7 @@
*/
static void prepare_pipe(int p[2])
{
+ unsigned int r = 0;
if (pipe(p)) {
perror("pipe failed");
abort();
@@ -51,7 +52,7 @@ static void prepare_pipe(int p[2])
/* fill the pipe completely; each pipe_buffer will now have
the PIPE_BUF_FLAG_CAN_MERGE flag */
- for (unsigned r = pipe_size; r > 0;) {
+ for (r = pipe_size; r > 0;) {
unsigned n = r > sizeof(buffer) ? sizeof(buffer) : r;
write(p[1], buffer, n);
r -= n;
@@ -59,7 +60,7 @@ static void prepare_pipe(int p[2])
/* drain the pipe, freeing all pipe_buffer instances (but
leaving the flags initialized) */
- for (unsigned r = pipe_size; r > 0;) {
+ for (r = pipe_size; r > 0;) {
unsigned n = r > sizeof(buffer) ? sizeof(buffer) : r;
read(p[0], buffer, n);
r -= n;
--
2.31.1
