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# =============================================================================
# Support for building NMODL without python library
# =============================================================================
# ~~~
# When NMODL is built under environment (e.g. manylinux) without python-dev
# package i.e. libpython.so, we have to build extension and binaries by
# ignoring undefned symbols. The python library will be loaded later on target
# system.
# ~~~
# use same variable name as NEURON as it won't be user option
set(LINK_AGAINST_PYTHON
TRUE
CACHE BOOL "Disable linking to python library")
mark_as_advanced(LINK_AGAINST_PYTHON)
# Flags for ignoring undefined symbols for wheel
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(UNDEFINED_SYMBOLS_IGNORE_FLAG "-Wl,-undefined,dynamic_lookup")
else()
set(UNDEFINED_SYMBOLS_IGNORE_FLAG "-Wl,--unresolved-symbols=ignore-all")
endif()
if(NOT LINK_AGAINST_PYTHON)
string(APPEND CMAKE_EXE_LINKER_FLAGS " ${UNDEFINED_SYMBOLS_IGNORE_FLAG}")
set(NMODL_WRAPPER_LIBS pyembed dl)
else()
set(NMODL_WRAPPER_LIBS pyembed pywrapper dl)
endif()
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