编译出错：make-4.2.1

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/usr/bin/ld: glob/libglob.a(glob.o): in function `glob_in_dir':
glob.c:(.text+0x2a2): undefined reference to `__alloca'
/usr/bin/ld: glob.c:(.text+0x3d9): undefined reference to `__alloca'
/usr/bin/ld: glob.c:(.text+0x588): undefined reference to `__alloca'
/usr/bin/ld: glob.c:(.text+0x618): undefined reference to `__alloca'
/usr/bin/ld: glob/libglob.a(glob.o): in function `glob':
glob.c:(.text+0x931): undefined reference to `__alloca'
/usr/bin/ld: glob/libglob.a(glob.o):glob.c:(.text+0x11e8): more undefined references to `__alloca' follow
collect2: error: ld returned 1 exit status
make: *** [Makefile:12: image] Error 2

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//make-4.2.1/glob/glob.c 加上去

# define __alloca     alloca