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rtmp: drop support

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- librtmp has no test cases, makes no proper releases and has not had a
  single commit within the last year

- librtmp parses the URL itself and requires non-compliant URLs for this

- we have no RTMP tests

- RTMP was used by 2.2% of curl users (self-identified in the 2025
  survey)

Closes #20673
This commit is contained in:
Daniel Stenberg 2026-03-21 12:14:21 +01:00
parent ff28f67970
commit ceae02db04
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GPG key ID: 5CC908FDB71E12C2
37 changed files with 82 additions and 740 deletions
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85
configure.ac
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@ -165,7 +165,6 @@ curl_unix_sockets_msg="no (--enable-unix-sockets)"
curl_ldaps_msg="no (--enable-ldaps)"
curl_ipfs_msg="no (--enable-ipfs)"
curl_rtsp_msg="no (--enable-rtsp)"
curl_rtmp_msg="no (--with-librtmp)"
curl_psl_msg="no (--with-libpsl)"
curl_altsvc_msg="enabled (--disable-alt-svc)"
curl_headers_msg="enabled (--disable-headers-api)"
@ -2689,86 +2688,6 @@ if test "$CURL_DISABLE_LDAPS" != "1"; then
curl_ldaps_msg="enabled"
fi
dnl **********************************************************************
dnl Check for the presence of LIBRTMP libraries and headers
dnl **********************************************************************
dnl Default to compiler & linker defaults for LIBRTMP files & libraries.
OPT_LIBRTMP=off
AC_ARG_WITH(librtmp,dnl
AS_HELP_STRING([--with-librtmp=PATH],[Where to look for librtmp, PATH points to the LIBRTMP installation; when possible, set the PKG_CONFIG_PATH environment variable instead of using this option])
AS_HELP_STRING([--without-librtmp], [disable LIBRTMP]),
OPT_LIBRTMP=$withval)
if test "x$OPT_LIBRTMP" != "xno"; then
dnl backup the pre-librtmp variables
CLEANLDFLAGS="$LDFLAGS"
CLEANLDFLAGSPC="$LDFLAGSPC"
CLEANCPPFLAGS="$CPPFLAGS"
CLEANLIBS="$LIBS"
case "$OPT_LIBRTMP" in
yes)
dnl --with-librtmp (without path) used
CURL_CHECK_PKGCONFIG(librtmp)
if test "$PKGCONFIG" != "no"; then
LIB_RTMP=`$PKGCONFIG --libs-only-l librtmp`
LD_RTMP=`$PKGCONFIG --libs-only-L librtmp`
CPP_RTMP=`$PKGCONFIG --cflags-only-I librtmp`
version=`$PKGCONFIG --modversion librtmp`
DIR_RTMP=`echo $LD_RTMP | $SED -e 's/^-L//'`
else
dnl To avoid link errors, we do not allow --librtmp without
dnl a pkgconfig file
AC_MSG_ERROR([--librtmp was specified but could not find librtmp pkgconfig file.])
fi
;;
off)
dnl no --with-librtmp option given, just check default places
LIB_RTMP="-lrtmp"
;;
*)
dnl use the given --with-librtmp spot
LIB_RTMP="-lrtmp"
PREFIX_RTMP=$OPT_LIBRTMP
;;
esac
dnl if given with a prefix, we set -L and -I based on that
if test -n "$PREFIX_RTMP"; then
LD_RTMP=-L${PREFIX_RTMP}/lib$libsuff
CPP_RTMP=-I${PREFIX_RTMP}/include
DIR_RTMP=${PREFIX_RTMP}/lib$libsuff
fi
LDFLAGS="$LDFLAGS $LD_RTMP"
LDFLAGSPC="$LDFLAGSPC $LD_RTMP"
CPPFLAGS="$CPPFLAGS $CPP_RTMP"
LIBS="$LIB_RTMP $LIBS"
AC_CHECK_LIB(rtmp, RTMP_Init,
[
AC_CHECK_HEADERS(librtmp/rtmp.h,
curl_rtmp_msg="enabled (librtmp)"
AC_DEFINE(USE_LIBRTMP, 1, [if librtmp is in use])
USE_LIBRTMP=1
LIBCURL_PC_REQUIRES_PRIVATE="$LIBCURL_PC_REQUIRES_PRIVATE librtmp"
)
],
dnl not found, revert back to clean variables
LDFLAGS=$CLEANLDFLAGS
LDFLAGSPC=$CLEANLDFLAGSPC
CPPFLAGS=$CLEANCPPFLAGS
LIBS=$CLEANLIBS
)
if test "x$OPT_LIBRTMP" != "xoff" &&
test "$USE_LIBRTMP" != "1"; then
AC_MSG_ERROR([librtmp libs and/or directories were not found where specified!])
fi
fi
dnl **********************************************************************
dnl Check for linker switch for versioned symbols
dnl **********************************************************************
@ -5409,9 +5328,6 @@ fi
if test "$CURL_DISABLE_RTSP" != "1"; then
SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS RTSP"
fi
if test "$USE_LIBRTMP" = "1"; then
SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS RTMP"
fi
if test "$CURL_DISABLE_WEBSOCKETS" != "1"; then
SUPPORT_PROTOCOLS="$SUPPORT_PROTOCOLS WS"
if test "$SSL_ENABLED" = "1"; then
@ -5523,7 +5439,6 @@ AC_MSG_NOTICE([Configured to build curl/libcurl:
LDAPS: ${curl_ldaps_msg}
IPFS/IPNS: ${curl_ipfs_msg}
RTSP: ${curl_rtsp_msg}
RTMP: ${curl_rtmp_msg}
PSL: ${curl_psl_msg}
Alt-svc: ${curl_altsvc_msg}
Headers API: ${curl_headers_msg}