Sets pre-processor and linker search paths for the open62541 library .
The open62541 library is a cmake-based project, that is not always installed to the system: it does not even provide an install target by default. In that case, the location of several directories need to be added to the pre-processor and linker search paths:
* -I<src>/deps * -I<src>/include * -I<src>/plugins * -I<build>/src_generated * -I<build> * -L<build>
Here "src" indicates the location of the library source directory and "build" the location of the out-of-source build.
This macro provides the configure options –with-open62541=dir and –with-open62541-build=dir to set the two directories. This macro will append to CPPFLAGS and LDFLAGS if a dir is supplied. It will also export LD_LIBRARY_PATH with the absolute path of the build dir for the rest of the configure script to use and define a Makefile variable OPEN62541_LDPATH, which contains LD_LIBRARY_PATH=$LD_LIBRARY_PATH:<abs_path_to_build> : this is intended to be used for all commands that need to execute a program using the library (e.g. make check). If paths are set, they are forwarded to distcheck.
For –with-open62541, the dir is optional: if either the values "no" (from –without-open62541) or "yes" (for no argument) are specified, this macro does nothing but these values may be used by other code. If –with-open62541 is not specified, the variable with_open62541 is not set.
For –with-open62541-build, the dir is compulsory. –with-open62541-build must not be given without also specifying –with-open62541. If –with-open62541 is given but –with-open62541-build is not, the default value is "<src>/build".
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Copyright © 2016,2017 Olaf Mandel email@example.com
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