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Issue a warning (not a fatal error) if Armadillo's configuration file does not

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exist.  The presence of that condition will probably cause errors later on,
though.
This commit is contained in:
Ryan Curtin
2013-01-02 22:21:48 +00:00
parent 85ec022028
commit 7f20a85a2e
1 changed files with 20 additions and 14 deletions
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CMakeLists.txt
+20 -14
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@@ -63,22 +63,28 @@ find_package(Armadillo 2.4.0 REQUIRED)
# system (where size_t will be 64 bits), suggest to the user that they should
# compile Armadillo with 64-bit words.
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
# We are on a 64-bit system. Does Armadillo have ARMA_64BIT_WORD enabled?
file(READ "${ARMADILLO_INCLUDE_DIRS}/armadillo_bits/config.hpp" ARMA_CONFIG)
string(REGEX MATCH
"[\r\n][ ]*#define ARMA_64BIT_WORD"
ARMA_HAS_64BIT_WORD_PRE
"${ARMA_CONFIG}")
# Can we open the configuration file? If not, issue a warning.
if(NOT EXISTS "${ARMADILLO_INCLUDE_DIRS}/armadillo_bits/config.hpp")
message(WARNING "Armadillo configuration file "
"(${ARMADILLO_INCLUDE_DIRS}/armadillo_bits/config.hpp) does not exist!")
else(NOT EXISTS "${ARMADILLO_INCLUDE_DIRS}/armadillo_bits/config.hpp")
# We are on a 64-bit system. Does Armadillo have ARMA_64BIT_WORD enabled?
file(READ "${ARMADILLO_INCLUDE_DIRS}/armadillo_bits/config.hpp" ARMA_CONFIG)
string(REGEX MATCH
"[\r\n][ ]*#define ARMA_64BIT_WORD"
ARMA_HAS_64BIT_WORD_PRE
"${ARMA_CONFIG}")
string(LENGTH "${ARMA_HAS_64BIT_WORD_PRE}" ARMA_HAS_64BIT_WORD)
string(LENGTH "${ARMA_HAS_64BIT_WORD_PRE}" ARMA_HAS_64BIT_WORD)
if(ARMA_HAS_64BIT_WORD EQUAL 0)
message(WARNING "This is a 64-bit system, but Armadillo was compiled "
"without 64-bit index support. Consider recompiling Armadillo with "
"ARMA_64BIT_WORD to enable 64-bit indices (large matrix support). "
"MLPACK will still work without ARMA_64BIT_WORD defined, but will not "
"scale to matrices with more than 4 billion elements.")
endif(ARMA_HAS_64BIT_WORD EQUAL 0)
if(ARMA_HAS_64BIT_WORD EQUAL 0)
message(WARNING "This is a 64-bit system, but Armadillo was compiled "
"without 64-bit index support. Consider recompiling Armadillo with "
"ARMA_64BIT_WORD to enable 64-bit indices (large matrix support). "
"MLPACK will still work without ARMA_64BIT_WORD defined, but will not "
"scale to matrices with more than 4 billion elements.")
endif(ARMA_HAS_64BIT_WORD EQUAL 0)
endif(NOT EXISTS "${ARMADILLO_INCLUDE_DIRS}/armadillo_bits/config.hpp")
endif(CMAKE_SIZEOF_VOID_P EQUAL 8)
# On Windows, Armadillo should be using LAPACK and BLAS but we still need to