mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-11 09:20:51 +00:00
32 lines
942 B
Plaintext
32 lines
942 B
Plaintext
# 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"])
|
|
])
|