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package/erlang: add optional dependency to unixodbc

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Quote from erlang configure without unixodbc:

checking for odbc in standard locations... no
configure: WARNING: No odbc library found skipping odbc
configure: WARNING: "ODBC library - header check failed"
configure: WARNING: "ODBC library - link check failed"

Quote from erlang configure with unixodbc:

checking for odbc in standard locations... -L/home/buildroot/br3_couchdb/output/host/usr/i586-buildroot-linux-uclibc/sysroot/usr/lib
checking for SQLAllocHandle in -lodbc... yes

To check for unixodbc support used by erlang use readelf:

$ output/host/usr/bin/i586-buildroot-linux-uclibc-readelf -a output/target/usr/lib/erlang/lib/odbc-2.11.1/priv/bin/odbcserver | grep NEEDED
 0x00000001 (NEEDED)                     Shared library: [libodbc.so.2]
 0x00000001 (NEEDED)                     Shared library: [libc.so.0]

Tested using this minimal defconfig:

BR2_PACKAGE_ERLANG=y
BR2_PACKAGE_ERLANG_SMP=y
BR2_PACKAGE_UNIXODBC=y

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Tested-by: Frank Hunleth <fhunleth@troodon-software.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Bernd Kuhls 2016-10-23 17:34:03 +02:00 committed by Thomas Petazzoni
parent 56cf561293
commit f33fcdf225
1 changed files with 4 additions and 0 deletions
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4
package/erlang/erlang.mk vendored
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@ -55,6 +55,10 @@ else
ERLANG_CONF_OPTS += --without-ssl
endif
ifeq ($(BR2_PACKAGE_UNIXODBC),y)
ERLANG_DEPENDENCIES += unixodbc
endif
ifeq ($(BR2_PACKAGE_ZLIB),y)
ERLANG_CONF_OPTS += --enable-shared-zlib
ERLANG_DEPENDENCIES += zlib