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package/qemu: disable curl for the host variant

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Under certain circumstances (host distribution, openssl version),
the qemu-system binary fail to start:

qemu-system-aarch64: symbol lookup error: /lib64/libssh.so.4: undefined symbol: EVP_KDF_ctrl, version OPENSSL_1_1_1b

There is no problem when only host-qemu is built, but it's linked with /lib64/libcurl.so.4
$ make host-qemu
$ ldd output/host/bin/qemu-system-aarch64
        [...]
	libcurl.so.4 => /lib64/libcurl.so.4 (0x00007fb21cb57000)
	libssh.so.4 => /lib64/libssh.so.4 (0x00007fb21c35d000)
	libpsl.so.5 => /lib64/libpsl.so.5 (0x00007fb21c34a000)
	libssl.so.1.1 => /lib64/libssl.so.1.1 (0x00007fb21c2b4000)

Note: /lib64/libcurl.so.4 is linked with libssh and libssl:
$ ldd /lib64/libcurl.so.4
	[...]
	libssh.so.4 => /lib64/libssh.so.4 (0x00007f90d8efd000)
	libpsl.so.5 => /lib64/libpsl.so.5 (0x00007f90d8eea000)
	libssl.so.1.1 => /lib64/libssl.so.1.1 (0x00007f90d8e54000)

Continue the build.
$ make

We can notice that qemu_aarch64_virt_defconfig set
BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y

So host-openssl package is built and this is the problem:

$ ldd output/host/bin/qemu-system-aarch64
	[...]
	libcurl.so.4 => /lib64/libcurl.so.4 (0x00007f3adb444000)
	libssh.so.4 => /lib64/libssh.so.4 (0x00007f3adac4a000)
	libpsl.so.5 => /lib64/libpsl.so.5 (0x00007f3adac37000)
	libssl.so.1.1 => /home/naourr/buildroot/test/qemu_aarch64_virt_defconfig-master/host/lib/libssl.so.1.1 (0x00007f3adaba8000)

qemu-system-aarch64: symbol lookup error: /lib64/libssh.so.4: undefined symbol: EVP_KDF_ctrl, version OPENSSL_1_1_1b

This is due to the build system trying to find libcurl using
pkg-config or curl-config.

libcurl is used by the QEMU Block driver for CURL images and
elf2dmp tool which is not needed.
Instead of adding host-libcurl dependency, we can disable it
entierely.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Romain Naour 2020-04-30 00:56:54 +02:00 committed by Yann E. MORIN
parent 06a28c919c
commit e30eaeb10e
1 changed files with 1 additions and 0 deletions
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package/qemu/qemu.mk
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@ -305,6 +305,7 @@ define HOST_QEMU_CONFIGURE_CMDS
--extra-ldflags="$(HOST_LDFLAGS)" \
--python=$(HOST_DIR)/bin/python3 \
--disable-bzip2 \
--disable-curl \
--disable-libssh \
--disable-sdl \
--disable-vnc-jpeg \