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dnl ---------------------------------------------------------------------------
dnl pstoimg: This program is needed for processing images. If not found,
dnl documentation can still be built, but without figures.
dnl ---------------------------------------------------------------------------
AC_DEFUN([GP_CHECK_PSTOIMG],
[
AC_REQUIRE([GP_CHECK_DOT])dnl for creating tesseract.ps
try_pstoimg=true
have_pstoimg=false
AC_ARG_WITH(pstoimg, AS_HELP_STRING([--without-pstoimg], [Do not use pstoimg]),[
if test "x$withval" = "xno"; then
try_pstoimg=false
fi])
if $try_pstoimg; then
AC_PATH_PROG(PSTOIMG,pstoimg)
if test -n "${PSTOIMG}"; then
have_pstoimg=true
fi
fi
if $have_pstoimg; then
AC_SUBST(PSTOIMG)
AC_MSG_CHECKING([whether ${PSTOIMG} works])
rm -f tesseract.png
${PSTOIMG} -type png -scale 1.2 -antialias -crop a tesseract.ps > /dev/null
if test $? != 0 || test ! -f tesseract.png; then
have_pstoimg=false
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
fi
rm -f tesseract.png
fi
AM_CONDITIONAL(ENABLE_PSTOIMG, $have_pstoimg)
])
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