[gnumeric] distcheck: allow specifying where component should be installed.

[Morten Welinder <mortenw src gnome org>]

commit 9159cc2289ad0fd04eaaeb109ab2cc893c794a50
Author: Morten Welinder <terra gnome org>
Date:   Tue May 1 20:19:17 2018 -0400

    distcheck: allow specifying where component should be installed.
    
    This is probably useful for the build process only.

 Makefile.am  |    6 +++++-
 configure.ac |   12 ++++++++++++
 2 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 6c88f0c..d990acc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,11 +8,15 @@ change_logs = ChangeLog
 CLEANFILES = gnumeric.desktop gnumeric.keys gnumeric.appdata.xml
 DISTCLEANFILES = intltool-extract intltool-merge intltool-update $(pkgconfig_DATA)
 
+# Flags for distcheck, mostly to install things that nominally go under the
+# directories of other packages into the dist dir instead.  (They won't work
+# there, but that's ok.)
 DISTCHECK_CONFIGURE_FLAGS = --without-perl --without-python \
        --enable-introspection=auto \
        --with-gir-dir=\$${datadir}/gir-1.0 \
        --with-typelib-dir=\$${libdir}/girepository-1.0 \
-       --with-gi-overrides-dir=\$${libdir}/gi/overrides
+       --with-gi-overrides-dir=\$${libdir}/gi/overrides \
+       --with-goffice-plugins-dir=\$${libdir}/goffice
 
 DIST_SAMPLES = $(shell (cd $(srcdir)/test && perl -e 'use GnumericTest; foreach 
(&GnumericTest::corpus("dist")) { print "$$_\n"; }'))
 
diff --git a/configure.ac b/configure.ac
index fa0b6aa..95822b6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1134,6 +1134,18 @@ AC_ARG_WITH([gi-overrides-dir],
 )
 AC_SUBST(GIOVERRIDESDIR)
 
+AC_ARG_WITH([goffice-plugins-dir],
+       AS_HELP_STRING(
+               [--with-goffice-plugins-dir],
+               [
+                path to goffice plugins
+                (automatically detected via pkg-config)
+               ]
+       ),
+       [GOFFICE_PLUGINS_DIR=$withval],
+       [:]
+)
+
 
 dnl **************************************************
 dnl * Config defaults