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POMakefile variable substitution sometimes ignored
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  1. POMakefile variable substitution sometimes ignored
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    copied!<p>Compiling a CUDA enabled version of aircrack-ng that hasn't been bug-fixed in a while so needed a bit of patching to get <em>most</em> of the way there. </p> <p>Basically, the make cannot find the relevant compiler (<code>nvcc</code>) for this one section of code;</p> <p><em>Relevent Makefile section</em></p> <pre><code>ifeq ($(CUDA), true) CFLAGS += -DCUDA_ENABLED NVCC := $(CUDA_BIN)/nvcc INCLUDES += -I. -I$(CUDA_INSTALL_PATH)/include COMMONFLAGS += $(INCLUDES) -DUNIX NVCCFLAGS += --compiler-options -fno-strict-aliasing --host-compilation=C $(COMMONFLAGS) # Change this only if you have COMPUTE &gt; 1.0 NVCCFLAGS += -maxrregcount 12 # Enable this for extra compiler and as output #NVCCFLAGS += --ptxas-options "-v" --verbose LIBSSL += -L$(CUDA_INSTALL_PATH)/lib -L$(CUDA_INSTALL_PATH)/lib64 -lcuda -lcudart %.o : %.cu $(NVCC) $(NVCCFLAGS) $(SMVERSIONFLAGS) -o $@ -c $&lt; endif </code></pre> <p><em>Relevant Make output</em></p> <pre><code>/nvcc --compiler-options -fno-strict-aliasing --host-compilation=C -I. -I/include -DUNIX -maxrregcount 12 -o cudacrypto.o -c cudacrypto.cu make[1]: /nvcc: Command not found make[1]: *** [cudacrypto.o] Error 127 make[1]: Leaving directory `/home/bolster/src/aircrack-ng-cuda/src' make: *** [install] Error 2 </code></pre> <p>As you can see it looks like make is dropping the environment variables 'CUDA_BIN'.</p> <p><em>Output of <code>echo $CUDA_BIN</code></em></p> <pre><code>/usr/local/cuda/bin </code></pre> <p><em>Output of <code>which nvcc</code></em></p> <pre><code>/usr/local/cuda/bin/nvcc </code></pre> <p>I am not a make-guru by any stretch, so if I'm doing something patently obviously wrong, forgive me.</p> <p>After trying hard coding the nvcc flag with the full path, that section compiles, but when it comes to a crypto section (involving libssl) it cannot find the necessary libraries, and in a similar fashion as above isn't replacing 'CUDA_INSTALL_PATH', even though it is in the environment, which indicates to be that something weird is going on.</p>
 

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