configure: Check for mfplain.mp (issue 3233).

[lilypond.git] / aclocal.m4

diff --git a/aclocal.m4 b/aclocal.m4
index 0dcd5bd870f38eb476dd8f308682414d2d1b342f..e2888727bd74372f5b676ee2b708fda74e269e11 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,5 +1,5 @@
 dnl aclocal.m4   -*-shell-script-*-
-dnl StepMake subroutines for configure.in
+dnl StepMake subroutines for configure.ac
 
 
 ### mostly interal macros
@@ -140,7 +140,7 @@ AC_DEFUN(STEPMAKE_CHECK_VERSION_UNSUPPORTED, [
     fi
 ])
 
-### Macros to build configure.in
+### Macros to build configure.ac
 
 
 AC_DEFUN(STEPMAKE_BIBTEX2HTML, [
@@ -1083,8 +1083,18 @@ void *p = v.data ();
 
 
 AC_DEFUN(STEPMAKE_TEXMF_DIRS, [
-    # ugh
-    STEPMAKE_PROGS(KPSEWHICH, kpsewhich, OPTIONAL)
+    STEPMAKE_PROGS(KPSEWHICH, kpsewhich, $1)
+
+    AC_MSG_CHECKING(for metapost required files)
+    if test "$MFPLAIN_MP" = ""; then
+        MFPLAIN_MP=`kpsewhich -format=mp mfplain`
+    fi
+    if test "$MFPLAIN_MP" = ""; then
+        AC_MSG_RESULT(no)
+        STEPMAKE_ADD_ENTRY($1,['metapost CTAN package (texlive-metapost)'])
+    else
+        AC_MSG_RESULT(yes)
+    fi
 ])
 
 AC_DEFUN(STEPMAKE_TEXMF, [