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erlang: set ERL_TOP to avoid using user's version

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Explicitly set the ERL_TOP environment variable to override values set
on a user's system. This prevents Erlang's configure scripts from
using source files outside of the ones that Buildroot downloaded.

Signed-off-by: Frank Hunleth <fhunleth@troodon-software.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Frank Hunleth 2017-02-18 16:01:11 -05:00 committed by Peter Korsgaard
parent 90ef9a24bc
commit 9e90efa52e
1 changed files with 6 additions and 0 deletions
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6
package/erlang/erlang.mk vendored
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@ -30,6 +30,12 @@ ERLANG_CONF_ENV += erl_xcomp_sysroot=$(STAGING_DIR)
ERLANG_CONF_OPTS = --without-javac
# Force ERL_TOP to the downloaded source directory. This prevents
# Erlang's configure script from inadvertantly using files from
# a version of Erlang installed on the host.
ERLANG_CONF_ENV += ERL_TOP=$(@D)
HOST_ERLANG_CONF_ENV += ERL_TOP=$(@D)
# erlang uses openssl for all things crypto. Since the host tools (such as
# rebar) uses crypto, we need to build host-erlang with support for openssl.
HOST_ERLANG_DEPENDENCIES = host-openssl