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configure: Add a proper check for openpty() in libutil

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On Linux (and maybe some BSDs), we require libutil for the openpty()
function. However, this library is not available on some other systems, so
we currently use a fragile if-statement in the configure script to check
whether we need the library or not. Unfortunately, we also hard-coded a
"-lutil" in the tests/Makefile.include file, so this breaks the build on
Solaris, for example (see buglink below). To fix the issue, add the "-lutil"
to "libs_tools" in the configure script instead, then this gets properly
propagated to the tests, too.
And while we're at it, also replace the fragile if-statement in the confi-
gure script with a proper link-check for the availability of this function.

Buglink: https://bugs.launchpad.net/qemu/+bug/1777252
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Thomas Huth 2019-01-17 18:14:08 +01:00 • committed by Paolo Bonzini
parent 6aaa24f9d4
commit d99e97e691
2 changed files with 10 additions and 6 deletions
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4
tests/Makefile.include
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@ -798,10 +798,6 @@ tests/migration/initrd-stress.img: tests/migration/stress$(EXESUF)
rm $(INITRD_WORK_DIR)/init
rmdir $(INITRD_WORK_DIR)
ifeq ($(CONFIG_POSIX),y)
LIBS += -lutil
endif
# QTest rules
TARGETS=$(patsubst %-softmmu,%, $(filter %-softmmu,$(TARGET_DIRS)))