From 776c60d3c33b05f59181a2052a9f03147bc51111 Mon Sep 17 00:00:00 2001
From: Dan Nicholson <dbn.lists@gmail.com>
Date: Fri, 18 Jul 2008 07:40:41 -0700
Subject: autoconf: Support Motif widgets in GLw with --enable-motif

Add an --enable-motif option, which will enable the Motif widgets in
libGLw and link it with libXm. The Motif installation information will
be gathered from the motif-config script (this comes with LessTif) or
fallback to the standard autoconf checks.

To allow the location of the Motif headers to be set from configure, the
default setting of -I/usr/include/Motif1.2 has been moved into
configs/default and then passed to the Makefile through the MOTIF_CFLAGS
variable.
---
 configure.ac | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index acb29e4468..9014f8e158 100644
--- a/configure.ac
+++ b/configure.ac
@@ -878,6 +878,12 @@ if test "x$enable_glw" = xyes && test "$mesa_driver" = osmesa; then
     AC_MSG_WARN([Disabling GLw since the driver is OSMesa])
     enable_glw=no
 fi
+AC_ARG_ENABLE([motif],
+    [AS_HELP_STRING([--enable-motif],
+        [use Motif widgets in GLw @<:@default=disabled@:>@])],
+    [enable_motif="$enableval"],
+    [enable_motif=no])
+
 if test "x$enable_glw" = xyes; then
     SRC_DIRS="$SRC_DIRS glw"
     if test "$x11_pkgconfig" = yes; then
@@ -885,7 +891,25 @@ if test "x$enable_glw" = xyes; then
         GLW_LIB_DEPS="$GLW_LIBS"
     else
         # should check these...
-        GLW_LIB_DEPS="$X_LIBS -lX11 -lXt"
+        GLW_LIB_DEPS="$X_LIBS -lXt -lX11"
+    fi
+
+    GLW_SOURCES="GLwDrawA.c"
+    MOTIF_CFLAGS=
+    if test "x$enable_motif" = xyes; then
+        GLW_SOURCES="$GLW_SOURCES GLwMDrawA.c"
+        AC_PATH_PROG([MOTIF_CONFIG], [motif-config], [no])
+        if test "x$MOTIF_CONFIG" != xno; then
+            MOTIF_CFLAGS=`$MOTIF_CONFIG --cflags`
+            MOTIF_LIBS=`$MOTIF_CONFIG --libs`
+        else
+            AC_CHECK_HEADER([Xm/PrimitiveP.h], [],
+                [AC_MSG_ERROR([Can't locate Motif headers])])
+            AC_CHECK_LIB([Xm], [XmGetPixmap], [MOTIF_LIBS="-lXm"],
+                [AC_MSG_ERROR([Can't locate Motif Xm library])])
+        fi
+        # MOTIF_LIBS is prepended to GLW_LIB_DEPS since Xm needs Xt/X11
+        GLW_LIB_DEPS="$MOTIF_LIBS $GLW_LIB_DEPS"
     fi
 
     # If static, empty GLW_LIB_DEPS and add libs for programs to link
@@ -900,6 +924,8 @@ if test "x$enable_glw" = xyes; then
 fi
 AC_SUBST([GLW_LIB_DEPS])
 AC_SUBST([GLW_MESA_DEPS])
+AC_SUBST([GLW_SOURCES])
+AC_SUBST([MOTIF_CFLAGS])
 
 dnl
 dnl GLUT configuration
@@ -1025,7 +1051,7 @@ echo ""
 echo "        Shared libs:     $enable_shared"
 echo "        Static libs:     $enable_static"
 echo "        GLU:             $enable_glu"
-echo "        GLw:             $enable_glw"
+echo "        GLw:             $enable_glw (Motif: $enable_motif)"
 echo "        glut:            $enable_glut"
 
 dnl Programs
-- 
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