warning: no previous prototype for 'recvfrom_packets'

[Keitagit-kun]

I did this

I tried to compile static libcurl v8.1.0
It compiled and seems to work OK, but at compile time I get warning:

[ 95%] Building C object lib/CMakeFiles/libcurl.dir/vquic/curl_msh3.c.obj
[ 96%] Building C object lib/CMakeFiles/libcurl.dir/vquic/curl_ngtcp2.c.obj
[ 96%] Building C object lib/CMakeFiles/libcurl.dir/vquic/curl_quiche.c.obj
[ 97%] Building C object lib/CMakeFiles/libcurl.dir/vquic/vquic.c.obj
C:\Temp\curl-8.1.0-OpenSSL3\curl-8.1.0\lib\vquic\vquic.c:434:10: warning: no previous prototype for 'recvfrom_packets' [-Wmissing-prototypes]
 CURLcode recvfrom_packets(struct Curl_cfilter *cf,
          ^~~~~~~~~~~~~~~~
[ 98%] Building C object lib/CMakeFiles/libcurl.dir/vssh/libssh.c.obj
[ 98%] Building C object lib/CMakeFiles/libcurl.dir/vssh/libssh2.c.obj
[ 99%] Building C object lib/CMakeFiles/libcurl.dir/vssh/wolfssh.c.obj
[100%] Linking C static library libcurl.a
[100%] Built target libcurl

I expected the following

no warning

curl/libcurl version

The C compiler identification is GNU 7.2.0
Check for working C compiler: C:/Program Files/mingw-w64/x86_64-7.2.0-win32-seh-rt_v5-rev1/mingw64/bin/gcc.exe
Check for working C compiler: C:/Program Files/mingw-w64/x86_64-7.2.0-win32-seh-rt_v5-rev1/mingw64/bin/gcc.exe -- works
Detecting C compiler ABI info
Detecting C compiler ABI info - done
Detecting C compile features
Detecting C compile features - done
curl version=[8.1.0]
Picky compiler options: -W -Wall -pedantic -Wbad-function-cast -Wconversion -Winline -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wno-long-long -Wno-multichar -Wpointer-arith -Wshadow -Wsign-compare -Wundef -Wunused -Wwrite-strings -Wcast-align -Wdeclaration-after-statement -Wempty-body -Wendif-labels -Wfloat-equal -Wignored-qualifiers -Wno-format-nonliteral -Wno-sign-conversion -Wno-system-headers -Wstrict-prototypes -Wtype-limits -Wvla -Wmissing-parameter-type -Wold-style-declaration -Wstrict-aliasing=3 -Wno-pedantic-ms-format -Wformat=2 -Warray-bounds=2 -ftree-vrp -Wduplicated-cond -Wnull-dereference -fdelete-null-pointer-checks -Wshift-negative-value -Wshift-overflow=2 -Walloc-zero -Wduplicated-branches -Wformat-overflow=2 -Wformat-truncation=1 -Wrestrict -Wdouble-promotion -Wunused-const-variable
Found OpenSSL: C:/Temp/curl-8.1.0-OpenSSL3/deps/lib/libcrypto.dll.a  
Performing Curl Test HAVE_WIN32_WINNT
Performing Curl Test HAVE_WIN32_WINNT - Success
Found _WIN32_WINNT=0x502
LTO supported and enabled
Enabled features: SSL IPv6 unixsockets libz brotli zstd AsynchDNS Largefile alt-svc HSTS NTLM HTTP2 HTTP3 HTTPS-proxy unicode threadsafe
Enabled protocols: DICT FILE FTP FTPS GOPHER GOPHERS HTTP HTTPS IMAP IMAPS LDAP LDAPS MQTT POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP
Enabled SSL backends: OpenSSL
Configuring done

[vszakats]

Can confirm.