30 lines
672 B
Text
30 lines
672 B
Text
# man-gnu-nroff.m4 serial 4
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dnl
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dnl Check to see if nroff is GNU nroff, take nroff path as arg.
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dnl
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AC_DEFUN([MAN_PROG_GNU_NROFF],
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[AC_MSG_CHECKING([whether nroff is GNU nroff])
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AC_CACHE_VAL([man_cv_prog_gnu_nroff],
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[if test `$1 <<EOF | tr -d '\n'
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\\n(.g
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EOF
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` = 1
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then
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man_cv_prog_gnu_nroff=yes
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else
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man_cv_prog_gnu_nroff=no
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fi])
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if test "$man_cv_prog_gnu_nroff" = "yes"
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then
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AC_CHECK_PROGS([preconv], [gpreconv preconv])
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if test -z "$preconv"
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then
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AC_MSG_ERROR([nroff is GNU nroff but preconv is missing; groff < 1.20 is not supported])
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fi
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AC_DEFINE([GNU_NROFF], [1], [Define if nroff is GNU nroff.])
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fi
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AC_MSG_RESULT([$man_cv_prog_gnu_nroff])
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])
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