diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/configure.ac b/configure.ac index dd37664..517f4a0 100644 --- a/configure.ac +++ b/configure.ac @@ -56,6 +56,7 @@ AC_PROG_CXX AC_PROG_CC AC_PROG_CC_C99 AC_PROG_GREP +AC_PROG_SED AC_PROG_INSTALL # Additionally required by the Scintilla build process: @@ -82,8 +83,20 @@ if [[ x$DATE = x ]]; then AC_MSG_ERROR([Required tool date not found!]) fi -# not necessarily required (depends on --enable-html-manual) +# SciTECO's online help system is based on Troff. +# Its `grosciteco` postprocessor practically only works with GNU roff. +# There are other good Troff implementations like Heirloom Troff, +# but the postprocessor relies on ditroff generating +# intermediate output in TTY/nroff mode. +# In the original UNIX Troff, nroff is a distinct implementation +# that does not work with postprocessors. +# +# Groff may also be used to generate HTML versions of +# sciteco(1) and sciteco(7). AC_CHECK_PROG(GROFF, groff, groff) +if [[ x$GROFF = x ]]; then + AC_MSG_ERROR([GNU roff required!]) +fi # not necessarily required (depends on --enable-developer-doc) AC_CHECK_PROG(DOXYGEN, doxygen, doxygen) @@ -295,10 +308,6 @@ AC_ARG_ENABLE(html-manual, AS_HELP_STRING([--enable-html-manual], [Generate and install HTML manuals using Groff [default=no]]), [html_man=$enableval], [html_man=no]) -if [[ $html_man = yes -a x$GROFF = x ]]; then - AC_MSG_ERROR([Enabled generating HTML manuals, but Groff cannot be found! - Try --disable-html-manual.]) -fi AM_CONDITIONAL(BUILD_HTMLMAN, [test $html_man = yes]) AC_ARG_ENABLE(developer-doc, |