| 1 | # Check for GNU-style execinfo.h. |
| 2 | |
| 3 | dnl Copyright 2012-2013 Free Software Foundation, Inc. |
| 4 | dnl This file is free software; the Free Software Foundation |
| 5 | dnl gives unlimited permission to copy and/or distribute it, |
| 6 | dnl with or without modifications, as long as this notice is preserved. |
| 7 | |
| 8 | AC_DEFUN([gl_EXECINFO_H], |
| 9 | [ |
| 10 | AC_CHECK_HEADERS_ONCE([execinfo.h]) |
| 11 | |
| 12 | LIB_EXECINFO='' |
| 13 | EXECINFO_H='execinfo.h' |
| 14 | |
| 15 | if test $ac_cv_header_execinfo_h = yes; then |
| 16 | gl_saved_libs=$LIBS |
| 17 | AC_SEARCH_LIBS([backtrace_symbols_fd], [execinfo], |
| 18 | [test "$ac_cv_search_backtrace_symbols_fd" = "none required" || |
| 19 | LIB_EXECINFO=$ac_cv_search_backtrace_symbols_fd]) |
| 20 | LIBS=$gl_saved_libs |
| 21 | test "$ac_cv_search_backtrace_symbols_fd" = no || EXECINFO_H='' |
| 22 | fi |
| 23 | |
| 24 | if test -n "$EXECINFO_H"; then |
| 25 | AC_LIBOBJ([execinfo]) |
| 26 | fi |
| 27 | |
| 28 | AC_SUBST([EXECINFO_H]) |
| 29 | AC_SUBST([LIB_EXECINFO]) |
| 30 | AM_CONDITIONAL([GL_GENERATE_EXECINFO_H], [test -n "$EXECINFO_H"]) |
| 31 | ]) |