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Paul Eggert authored
Merge from gnulib, incorporating: 2012-08-24 execinfo: port to FreeBSD 2012-08-22 execinfo: new module * admin/merge-gnulib (GNULIB_MODULES): Add execinfo. * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate. * lib/execinfo.c, lib/execinfo.in.h, m4/execinfo.m4: New files. * src/alloc.c [ENABLE_CHECKING]: Include <execinfo.h>. (die) [ENABLE_CHECKING]: Print a backtrace if available. * src/Makefile.in (LIB_EXECINFO): New macro. (LIBES): Use it.
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