Re: FTGL.h not found

[Thomas Treichl]

John W. Eaton schrieb:
> On 10-Jul-2008, John W. Eaton wrote:
>
> | So do we agree that the configure script and sources should be changed
> | to look for and use ftgl.h?
>
> After taking a closer look, I don't see any FTGL headers included
> anywhere in the Octave sources, and the configure test actually
> includes FTGLTextureFont.h, so it seems we should check for that
> instead.  I made that change, but then the check still failed, so I
> finally looked in the config.log file and found that FTGLTextureFont.h
> is deprecated, so ftgl.h should be used instead.

The current test for ftgl fails on my system (MacOSX, gcc-4.0.1) because '#fi' 
isn't understood by my preprocessor:



Further, the headers FTGL/ftgl.h and ftgl.h are checked sequentially and I see a 
dominant result when checking for ftgl.h even when FTGL/ftgl.h should be used:

  checking for FreeType -- version >= 9.0.3... yes
  checking FTGL/ftgl.h usability... yes
  checking FTGL/ftgl.h presence... yes
  checking for FTGL/ftgl.h... yes
  checking for FTGLTextureFont in -lftgl... yes
  checking ftgl.h usability... no
  checking ftgl.h presence... no
  checking for ftgl.h... no

results in

  configure: WARNING: FTGL library not found. Native renderer will not have 
on-screen text

and

  fltk backend libs:

I removed the ftgl.h entry and then the test succeeded and FTGL/ftgl.h is used 
correctly:

  fltk backend libs: -lfltk_gl -framework AGL -framework OpenGL -lfltk 
-framework Carbon -framework ApplicationServices

I have created a normal patch because my changes are not a solution for this 
(that's why I don't send a changeset) ...

Regards,

  Thomas

diff -r e56bb65186f6 configure.in
--- a/configure.in      Wed Jun 25 22:11:07 2008 +0200
+++ b/configure.in      Thu Jul 10 22:18:25 2008 +0200
@@ -654,7 +654,7 @@ if test "x$OPENGL_LIBS" != "x"; then
     [warn_graphics="FreeType library not found. Native renderer will not have 
on-screen text"])
   if test "x$warn_graphics" = "x" ; then
     AC_LANG_PUSH(C++)
-      AC_CHECK_HEADERS([FTGL/ftgl.h ftgl.h], [
+      AC_CHECK_HEADERS([FTGL/ftgl.h], [
        AC_MSG_CHECKING([for FTGLTextureFont in -lftgl])
         save_LIBS="$LIBS"
        save_CXXFLAGS="$CXXFLAGS"
@@ -665,7 +665,7 @@ if test "x$OPENGL_LIBS" != "x"; then
 #include <FTGL/ftgl.h>
 #elif HAVE_FTGL_H
 #include <ftgl.h>
-#fi], [
+#endif], [
 FTGLTextureFont font("");], [
           OPENGL_LIBS="$OPENGL_LIBS $FT2_LIBS -lftgl"
          LIBS="$save_LIBS"