30 lines
848 B
Plaintext
30 lines
848 B
Plaintext
# execinfo.m4
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# serial 1
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dnl Copyright 2012-2024 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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# Check for GNU-style execinfo.h.
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AC_DEFUN([gl_EXECINFO_H],
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[
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AC_CHECK_HEADERS_ONCE([execinfo.h])
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LIB_EXECINFO=''
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GL_GENERATE_EXECINFO_H=true
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if test $ac_cv_header_execinfo_h = yes; then
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gl_saved_libs=$LIBS
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AC_SEARCH_LIBS([backtrace_symbols_fd], [execinfo],
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[test "$ac_cv_search_backtrace_symbols_fd" = "none required" ||
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LIB_EXECINFO=$ac_cv_search_backtrace_symbols_fd])
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LIBS=$gl_saved_libs
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if test "$ac_cv_search_backtrace_symbols_fd" != no; then
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GL_GENERATE_EXECINFO_H=false
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fi
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fi
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AC_SUBST([LIB_EXECINFO])
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])
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