Mercurial > gnulib
view m4/execinfo.m4 @ 40209:c43e83386661
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author | Karl Berry <karl@freefriends.org> |
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date | Fri, 08 Mar 2019 09:27:47 -0800 |
parents | b06060465f09 |
children |
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# Check for GNU-style execinfo.h. dnl Copyright 2012-2019 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_EXECINFO_H], [ AC_CHECK_HEADERS_ONCE([execinfo.h]) LIB_EXECINFO='' EXECINFO_H='execinfo.h' if test $ac_cv_header_execinfo_h = yes; then gl_saved_libs=$LIBS AC_SEARCH_LIBS([backtrace_symbols_fd], [execinfo], [test "$ac_cv_search_backtrace_symbols_fd" = "none required" || LIB_EXECINFO=$ac_cv_search_backtrace_symbols_fd]) LIBS=$gl_saved_libs test "$ac_cv_search_backtrace_symbols_fd" = no || EXECINFO_H='' fi if test -n "$EXECINFO_H"; then AC_LIBOBJ([execinfo]) fi AC_SUBST([EXECINFO_H]) AC_SUBST([LIB_EXECINFO]) AM_CONDITIONAL([GL_GENERATE_EXECINFO_H], [test -n "$EXECINFO_H"]) ])