Failed to detect tcmalloc or jemalloc for Fedora 26

[expnn]

The wildcard given by the current Makefile failed to detect the gperftools/jemalloc malloc libraries.
Currently, it uses the following snippet to detect these libraries, which assumes the .so file is located in the '*/lib' subdirectories.
https://github.com/apache/incubator-mxnet/blob/35ceea73ccc1acfb2ec62cdaa841822e51c13456/Makefile#L168-L213

This is not true for Fedora 26 (and for many 64-bit systems), which put the shared library files into 'lib64' subdirectories. For example, on my system, it is located in the /usr/lib64 directory.

$ locate libtcmalloc.so
/usr/lib64/libtcmalloc.so.4
/usr/lib64/libtcmalloc.so.4.4.5

I suggest to using the following snippet to replace the above-mentioned codes.
It simply replaces 'lib' into 'lib*' in the wildcard matching.

# gperftools malloc library (tcmalloc)
ifeq ($(USE_GPERFTOOLS), 1)
#	FIND_LIBNAME=tcmalloc_and_profiler
	FIND_LIBNAME=tcmalloc
	FIND_LIBFILEEXT=so
	FIND_LIBFILE=$(wildcard /lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
	ifeq (,$(FIND_LIBFILE))
		FIND_LIBFILE=$(wildcard /usr/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
		ifeq (,$(FIND_LIBFILE))
			FIND_LIBFILE=$(wildcard /usr/local/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
			ifeq (,$(FIND_LIBFILE))
				USE_GPERFTOOLS=0
			endif
		endif
	endif
	ifeq ($(USE_GPERFTOOLS), 1)
		CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
		LDFLAGS += $(FIND_LIBFILE)
	endif
endif

# jemalloc malloc library (if not using gperftools)
ifneq ($(USE_GPERFTOOLS), 1)
	ifeq ($(USE_JEMALLOC), 1)
		FIND_LIBNAME=jemalloc
		FIND_LIBFILEEXT=so
		FIND_LIBFILE=$(wildcard /lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
		ifeq (,$(FIND_LIBFILE))
			FIND_LIBFILE=$(wildcard /usr/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
			ifeq (,$(FIND_LIBFILE))
				FIND_LIBFILE=$(wildcard /usr/local/lib*/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
				ifeq (,$(FIND_LIBFILE))
					FIND_LIBFILE=$(wildcard /usr/lib*/x86_64-linux-gnu/lib$(FIND_LIBNAME).$(FIND_LIBFILEEXT))
					ifeq (,$(FIND_LIBFILE))
						USE_JEMALLOC=0
					endif
				endif
			endif
		endif
		ifeq ($(USE_JEMALLOC), 1)
			CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc \
			-fno-builtin-free -DUSE_JEMALLOC
			LDFLAGS += $(FIND_LIBFILE)
		endif
	endif
endif

[eric-haibin-lin]

@cjolivier01 do you know how to resolve this issue?

[cjolivier01]

Of course you may submit a PR.
How do you handle libtcmalloc.so.3 and libtcmalloc.so.4 in the same directory?
You might also offering to override the directory with a variable from config.mk

[cjolivier01]

I think we're probably going to deprecate Makefile and use cmake. Does it find it ok with cmake?

See discussion: #8702

[cjolivier01]

Please reopen if necessary, but I think we're just going to standardize on cmake. Let me know if cmake doesn't find it.,