[asterisk-dev] [Code Review] 3550: build: Allow autoconf/ast_ext_tool_check to handle cross-compiling better

[George Joseph]

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https://reviewboard.asterisk.org/r/3550/
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Review request for Asterisk Developers.


Repository: Asterisk


Description
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ast_ext_tool_check.m4 isn't handling cases where a path to a package is provided (E.G. --with-mysqlclient=/some/sysroot) and the package has a config tool (E.G. mysql_config) and the package has its own subdirectories in include or lib.  For example, mysql's libraries are in ${MYSQLCLIENT_DIR}/usr/lib/mysql but ast_ext_tool_check sets MYSQLCLIENT_LIB to ${MYSQLCLIENT_DIR}/usr/lib.  libxml2 has the same problem with its includes.  They're in ${LIBXML2_DIR}/usr/include/libxml2 not directly in ${LIBXML2_DIR}/usr/include.  Both cause configure to fail and there are others in the same boat.

The problem is caused by logic in ast_ext_tool_check that overrides the result of the config tool's --cflags and --libs options if package_DIR is set.

This patch prepends package_DIR (if specified) to the -L and -I results from the package's config tool instead of overriding them.

I also did a little reformatting.  It was ugly.


Diffs
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  branches/11/autoconf/ast_ext_tool_check.m4 414209 

Diff: https://reviewboard.asterisk.org/r/3550/diff/


Testing
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Tested with cross compile for armv7hl platform (package paths specified) and with native x86_64 compile (no package paths specified).


Thanks,

George Joseph

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