From 9df8b20d1632d108da316134d4d86a00b4028803 Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Mon, 29 Jun 2020 14:13:24 +0200 Subject: [PATCH] configure / util: Auto-detect the availability of openpty() Recent versions of Solaris (v11.4) now feature an openpty() function, too, causing a build failure since we ship our own implementation of openpty() for Solaris in util/qemu-openpty.c so far. Since there are now both variants available in the wild, with and without this function (and illumos is said to not have this function yet), let's introduce a proper HAVE_OPENPTY define for this to fix the build failure. Message-Id: <20200702143955.678-1-thuth@redhat.com> Tested-by: Michele Denber Signed-off-by: Thomas Huth --- configure | 9 ++++++++- util/qemu-openpty.c | 5 ++++- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/configure b/configure index 8a65240d4a..f8dc64beab 100755 --- a/configure +++ b/configure @@ -5134,10 +5134,14 @@ extern int openpty(int *am, int *as, char *name, void *termp, void *winp); int main(void) { return openpty(0, 0, 0, 0, 0); } EOF -if ! compile_prog "" "" ; then +have_openpty="no" +if compile_prog "" "" ; then + have_openpty="yes" +else if compile_prog "" "-lutil" ; then libs_softmmu="-lutil $libs_softmmu" libs_tools="-lutil $libs_tools" + have_openpty="yes" fi fi @@ -7380,6 +7384,9 @@ fi if test "$have_broken_size_max" = "yes" ; then echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak fi +if test "$have_openpty" = "yes" ; then + echo "HAVE_OPENPTY=y" >> $config_host_mak +fi # Work around a system header bug with some kernel/XFS header # versions where they both try to define 'struct fsxattr': diff --git a/util/qemu-openpty.c b/util/qemu-openpty.c index 2e8b43bdf5..4b8df96f38 100644 --- a/util/qemu-openpty.c +++ b/util/qemu-openpty.c @@ -52,7 +52,9 @@ #endif #ifdef __sun__ -/* Once Solaris has openpty(), this is going to be removed. */ + +#if !defined(HAVE_OPENPTY) +/* Once illumos has openpty(), this is going to be removed. */ static int openpty(int *amaster, int *aslave, char *name, struct termios *termp, struct winsize *winp) { @@ -93,6 +95,7 @@ err: close(mfd); return -1; } +#endif static void cfmakeraw (struct termios *termios_p) {