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-rw-r--r--m4/man-gnu-nroff.m424
1 files changed, 24 insertions, 0 deletions
diff --git a/m4/man-gnu-nroff.m4 b/m4/man-gnu-nroff.m4
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+++ b/m4/man-gnu-nroff.m4
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+# man-gnu-nroff.m4 serial 3
+dnl
+dnl Check to see if nroff is GNU nroff, take nroff path as arg.
+dnl
+AC_DEFUN([MAN_PROG_GNU_NROFF],
+[AC_MSG_CHECKING([whether nroff is GNU nroff])
+
+AC_CACHE_VAL([man_cv_prog_gnu_nroff],
+ [if test `$1 <<EOF | tr -d '\n'
+\\n(.g
+EOF
+` = 1
+ then
+ man_cv_prog_gnu_nroff=yes
+ else
+ man_cv_prog_gnu_nroff=no
+ fi])
+
+if test "$man_cv_prog_gnu_nroff" = "yes"
+then
+ AC_DEFINE([GNU_NROFF], [1], [Define if nroff is GNU nroff.])
+fi
+AC_MSG_RESULT([$man_cv_prog_gnu_nroff])
+])