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### Running command:
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###   /Library/Frameworks/R.framework/Versions/Current/Resources/bin/R CMD INSTALL LEA
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* installing to library ‘/Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/library’
* installing *source* package ‘LEA’ ...
** using staged installation
** libs
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I.  -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c R_LFMM.c -o R_LFMM.o
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I.  -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c R_crossEntropy.c -o R_crossEntropy.o
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I.  -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c R_createDataSet.c -o R_createDataSet.o
clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I.  -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c R_sNMF.c -o R_sNMF.o
In file included from R_sNMF.c:24:
In file included from ./sNMF/sNMF.h:13:
./sNMF/../bituint/bituint.h:141:2: error: Unsupported architecture
#error Unsupported architecture
 ^
./sNMF/../bituint/bituint.h:152:23: error: unknown type name 'bituint'
void init_mat_bituint(bituint ** dat, int N, int Mc, int *Mp);
                      ^
In file included from R_sNMF.c:24:
./sNMF/sNMF.h:62:9: error: unknown type name 'bituint'
        bituint *X;             /**< @brief the data matrix (of size nxMp) */
        ^
./sNMF/sNMF.h:63:9: error: unknown type name 'bituint'
        bituint *Xi;             /**< @brief the init data matrix (of size nxMpi) */
        ^
4 errors generated.
make: *** [R_sNMF.o] Error 1
ERROR: compilation failed for package ‘LEA’
* removing ‘/Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/library/LEA’