BUILD: qpack: fix a build issue on older compilers

Got this on gcc-4.8:

  src/qpack-enc.c: In function 'qpack_encode_method':
  src/qpack-enc.c:168:3: error: 'for' loop initial declarations are only allowed in C99 mode
     for (size_t i = 0; i < istlen(other); ++i)
     ^

This came from commit a0912cf914 ("MINOR: h3: complete HTTP/3 request
method encoding"), no backport is needed.

diff --git a/src/qpack-enc.c b/src/qpack-enc.c
index f6a18397f6e81dc488145f1be3a5816005f20e8f..7766bb616b07d970a04f8069b7e30ccf596d670b 100644 (file)
--- a/src/qpack-enc.c
+++ b/src/qpack-enc.c
@@ -136,6 +136,7 @@ int qpack_encode_int_status(struct buffer *out, unsigned int status)
 int qpack_encode_method(struct buffer *out, enum http_meth_t meth, struct ist other)
 {
        int sz, idx = 0;
+       size_t i;
 
        switch (meth) {
        case HTTP_METH_CONNECT: idx = 15; break;
@@ -165,7 +166,7 @@ int qpack_encode_method(struct buffer *out, enum http_meth_t meth, struct ist ot
                /* literal field line with name ref */
                qpack_encode_prefix_integer(out, 15, 4, 0x50);
                qpack_encode_prefix_integer(out, istlen(other), 7, 0);
-               for (size_t i = 0; i < istlen(other); ++i)
+               for (i = 0; i < istlen(other); ++i)
                        b_putchr(out, istptr(other)[i]);
        }
 
@@ -175,6 +176,7 @@ int qpack_encode_method(struct buffer *out, enum http_meth_t meth, struct ist ot
 /* Returns 0 on success else non-zero. */
 int qpack_encode_scheme(struct buffer *out, const struct ist scheme)
 {
+       size_t i;
        int sz;
 
        if (unlikely(!isteq(scheme, ist("https"))) && !isteq(scheme, ist("http"))) {
@@ -185,7 +187,7 @@ int qpack_encode_scheme(struct buffer *out, const struct ist scheme)
                /* literal field line with name ref */
                qpack_encode_prefix_integer(out, 23, 4, 0x50);
                qpack_encode_prefix_integer(out, istlen(scheme), 7, 0);
-               for (size_t i = 0; i < istlen(scheme); ++i)
+               for (i = 0; i < istlen(scheme); ++i)
                        b_putchr(out, istptr(scheme)[i]);
        }
        else {
@@ -206,7 +208,7 @@ int qpack_encode_scheme(struct buffer *out, const struct ist scheme)
 /* Returns 0 on success else non-zero. */
 int qpack_encode_path(struct buffer *out, const struct ist path)
 {
-       size_t sz;
+       size_t sz, i;
 
        if (unlikely(isteq(path, ist("/")))) {
                if (!b_room(out))
@@ -222,7 +224,7 @@ int qpack_encode_path(struct buffer *out, const struct ist path)
 
                qpack_encode_prefix_integer(out, 1, 4, 0x50);
                qpack_encode_prefix_integer(out, istlen(path), 7, 0);
-               for (size_t i = 0; i < istlen(path); ++i)
+               for (i = 0; i < istlen(path); ++i)
                        b_putchr(out, istptr(path)[i]);
                return 0;
        }
@@ -234,7 +236,7 @@ int qpack_encode_path(struct buffer *out, const struct ist path)
  */
 int qpack_encode_auth(struct buffer *out, const struct ist auth)
 {
-       size_t sz;
+       size_t sz, i;
 
        sz = 1 + qpack_get_prefix_int_size(istlen(auth), 7) + istlen(auth);
        if (b_room(out) < sz)
@@ -242,7 +244,7 @@ int qpack_encode_auth(struct buffer *out, const struct ist auth)
 
        qpack_encode_prefix_integer(out, 0, 4, 0x50);
        qpack_encode_prefix_integer(out, istlen(auth), 7, 0);
-       for (size_t i = 0; i < istlen(auth); ++i)
+       for (i = 0; i < istlen(auth); ++i)
                b_putchr(out, istptr(auth)[i]);
        return 0;
 }