Access Violation error when compiling packets in Gentoo – symlink

Here is another example of Access violation error when building packages in Gentoo. This time the build process could not make a symbolic link in “/usr/bin” and the build process of the package failed with:

 * ACCESS DENIED:  symlink:      /usr/bin/stransmit
CMake Error: failed to create symbolic link '/usr/bin/stransmit': permission denied

A detail explanation is available in our first article on the subject here – Access Violation error, when compiling packets in Gentoo.
All packages are built in a sandbox and there is a sandbox configuration in

/etc/sandbox.d/00default

, which instruct the build process where could write. If you get such error in 99.99% there is a bug in the package and if you do not want to wait for fixing it (report it!) you can manually edit the SANDBOX_WRITE variable and add the path, which causes the build failure. Build the package and remove the added path!!! Or you risk to make your system less secure!

We have problem with building the package “net-libs/srt-1.3.1”

srv1 src # emerge -v net-libs/srt

These are the packages that would be merged, in order:

[ebuild  N     ] net-libs/srt-1.3.1::gentoo  USE="-doc -gnutls -libressl" ABI_X86="32 (64) (-x32)" 0 KiB

Total: 1 package (1 new), Size of downloads: 0 KiB

>>> Verifying ebuild manifests

>>> Emerging (1 of 1) net-libs/srt-1.3.1::gentoo
 * srt-1.3.1.tar.gz BLAKE2B SHA512 size 😉 ...                                                                                                        [ ok ]
>>> Unpacking source...
.....
.....
>>> Install srt-1.3.1 into /var/tmp/portage/net-libs/srt-1.3.1/image/ category net-libs
 * abi_x86_32.x86: running multilib-minimal_abi_src_install
>>> Working in BUILD_DIR: "/var/tmp/portage/net-libs/srt-1.3.1/work/srt-1.3.1-abi_x86_32.x86"
make -j6 -l10 install 
[ 28%] Built target haicrypt_virtual
[ 40%] Built target srtsupport_virtual
[ 80%] Built target srt_virtual
[ 83%] Built target srt_static
[ 85%] Built target srt_shared
[ 90%] Built target srt-file-transmit
[ 95%] Built target srt-live-transmit
[100%] Built target srt-multiplex
Install the project...
-- Install configuration: "Gentoo"
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib32/libsrt.so.1.3.1
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib32/libsrt.so.1
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib32/libsrt.so
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib32/libsrt.a
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/version.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/srt.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/logging_api.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/platform_sys.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/udt.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/srt4udt.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib32/pkgconfig/haisrt.pc
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib32/pkgconfig/srt.pc
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-live-transmit
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-live-transmit
 * ACCESS DENIED:  symlink:      /usr/bin/stransmit
CMake Error: failed to create symbolic link '/usr/bin/stransmit': permission denied
-- Created symlink: /usr/bin/stransmit -> srt-live-transmit
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-file-transmit
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-file-transmit
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-multiplex
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-multiplex
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-ffplay
 * abi_x86_64.amd64: running multilib-minimal_abi_src_install
>>> Working in BUILD_DIR: "/var/tmp/portage/net-libs/srt-1.3.1/work/srt-1.3.1-abi_x86_64.amd64"
make -j6 -l10 install 
[ 11%] Built target srtsupport_virtual
[ 52%] Built target srt_virtual
[ 80%] Built target haicrypt_virtual
[ 83%] Built target srt_static
[ 85%] Built target srt_shared
[ 90%] Built target srt-multiplex
[ 95%] Built target srt-file-transmit
[100%] Built target srt-live-transmit
Install the project...
-- Install configuration: "Gentoo"
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib64/libsrt.so.1.3.1
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib64/libsrt.so.1
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib64/libsrt.so
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib64/libsrt.a
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/version.h
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/srt.h
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/logging_api.h
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/platform_sys.h
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/udt.h
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/include/srt/srt4udt.h
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib64/pkgconfig/haisrt.pc
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/lib64/pkgconfig/srt.pc
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-live-transmit
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-live-transmit
 * ACCESS DENIED:  symlink:      /usr/bin/stransmit
CMake Error: failed to create symbolic link '/usr/bin/stransmit': permission denied
-- Created symlink: /usr/bin/stransmit -> srt-live-transmit
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-file-transmit
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-file-transmit
-- Installing: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-multiplex
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-multiplex
-- Up-to-date: /var/tmp/portage/net-libs/srt-1.3.1/image/usr/bin/srt-ffplay
>>> Completed installing srt-1.3.1 into /var/tmp/portage/net-libs/srt-1.3.1/image/

 * Final size of build directory: 14632 KiB (14.2 MiB)
 * Final size of installed tree:   5324 KiB ( 5.1 MiB)

 * --------------------------- ACCESS VIOLATION SUMMARY ---------------------------
 * LOG FILE: "/var/log/sandbox/sandbox-25570.log"
 * 
VERSION 1.0
FORMAT: F - Function called
FORMAT: S - Access Status
FORMAT: P - Path as passed to function
FORMAT: A - Absolute Path (not canonical)
FORMAT: R - Canonical Path
FORMAT: C - Command Line

F: symlink
S: deny
P: /usr/bin/stransmit
A: /usr/bin/stransmit
R: /usr/bin/stransmit
C: /usr/bin/cmake -E create_symlink srt-live-transmit /usr/bin/stransmit 

F: symlink
S: deny
P: /usr/bin/stransmit
A: /usr/bin/stransmit
R: /usr/bin/stransmit
C: /usr/bin/cmake -E create_symlink srt-live-transmit /usr/bin/stransmit 
 * --------------------------------------------------------------------------------

>>> Failed to emerge net-libs/srt-1.3.1, Log file:

>>>  '/var/tmp/portage/net-libs/srt-1.3.1/temp/build.log'

In the installation phase occurred the package failure leaving half installed package. So we edited the “/etc/sandbox.d/00default” and added “:/usr/bin” at the end of SANDBOX_WRITE:

SANDBOX_WRITE="/usr/tmp/conftest:/usr/lib/conftest:/usr/lib32/conftest:/usr/lib64/conftest:/usr/tmp/cf:/usr/lib/cf:/usr/lib32/cf:/usr/lib64/cf:/usr/bin"

Then rebuild the package with emerge and remove the added path “:/usr/bin”. This is a dirty workaround, but it will allow you to use srt (and as a dependency to another packages’ installation).