-dnl Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-dnl CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-dnl
-dnl This library is free software; you can redistribute it and/or
-dnl modify it under the terms of the GNU Lesser General Public
-dnl License as published by the Free Software Foundation; either
-dnl version 2.1 of the License.
-dnl
-dnl This library is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-dnl Lesser General Public License for more details.
-dnl
-dnl You should have received a copy of the GNU Lesser General Public
-dnl License along with this library; if not, write to the Free Software
-dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-dnl
-dnl See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+dnl Copyright (C) 2007-2023 CEA/DEN, EDF R&D, OPEN CASCADE
dnl
+dnl Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+dnl CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
dnl
+dnl This library is free software; you can redistribute it and/or
+dnl modify it under the terms of the GNU Lesser General Public
+dnl License as published by the Free Software Foundation; either
+dnl version 2.1 of the License, or (at your option) any later version.
dnl
+dnl This library is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl Lesser General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU Lesser General Public
+dnl License along with this library; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+dnl
+dnl See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+dnl
+
AC_DEFUN([CHECK_OPENGL],[
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
+AC_REQUIRE([AC_LINKER_OPTIONS])dnl
+
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+
AC_ARG_WITH(opengl,
- [ --with-opengl=DIR root directory path of OpenGL installation ],
- [
- opengl_dir="$withval"
- local_opengl=yes
- ], [
- dirs="/usr/lib /usr/local/lib /opt/graphics/OpenGL/lib /usr/openwin/lib /usr/X11R6/lib"
- ])dnl
+ [AC_HELP_STRING([--with-opengl=DIR],[root directory path of OpenGL installation])],
+ [opengl_dir="$withval"],
+ [dirs="/usr/lib64 /usr/lib /usr/local/lib64 /usr/local/lib /opt/graphics/OpenGL/lib64 /opt/graphics/OpenGL/lib /usr/openwin/lib64 /usr/openwin/lib /usr/X11R6/lib64 /usr/X11R6/lib"])dnl
AC_CHECKING(for OpenGL)
-
-AC_SUBST(OGL_INCLUDES)
-AC_SUBST(OGL_LIBS)
+AC_CHECKING(for OpenGL headers)
OGL_INCLUDES=""
OGL_LIBS=""
+GL_LIB_PATH=""
+GLU_LIB_PATH=""
+
OpenGL_ok=no
+OpenGL_libs_ok=no
+OpenGL_headers_ok=no
dnl openGL headers
-
# by default
-
-if test "x$local_opengl" = "xyes" ; then
- if test -f "${opengl_dir}/include/GL/gl.h" ; then
- OpenGL_ok=yes
- OGL_INCLUDES="-I${opengl_dir}/include"
- if test "x${opengl_dir}" = "x/usr"
- then
- OGL_LIBS=""
- else
- OGL_LIBS="-L${opengl_dir}/lib"
- fi
- AC_MSG_RESULT(select OpenGL distribution in ${opengl_dir})
- else
- AC_MSG_RESULT(no gl.h header file in ${opengl_dir}/include/GL)
- fi
+if test "x${opengl_dir}" != "x" ; then
+ AC_MSG_RESULT(for opengl_dir: $opengl_dir)
+ AC_CHECK_HEADER([${opengl_dir}/include/GL/gl.h],
+ [OpenGL_headers_ok=yes; OGL_INCLUDES="-I${opengl_dir}/include"],
+ [OpenGL_headers_ok=no])
+ if test "x${OpenGL_headers_ok}" = "xyes" ; then
+ AC_CHECKING(for default OpenGL library)
+ if test "x${opengl_dir}" = "x/usr" ; then
+ OGL_LIBS=""
+ else
+ OGL_LIBS="-L${opengl_dir}/lib"
+ fi
+ LDFLAGS_old="$LDFLAGS"
+ LDFLAGS="$LDFLAGS $OGL_LIBS"
+ AC_CHECK_LIB([GL],
+ [glBegin],
+ [OpenGL_libs_ok=yes],
+ [OpenGL_libs_ok=no])
+ if test "x${OpenGL_libs_ok}" = "xyes" ; then
+ AC_TRY_LINK([],
+ [],
+ [OpenGL_libs_ok=yes ; OpenGL_ok=yes; OGL_LIBS="$OGL_LIBS -lGL"],
+ [OpenGL_libs_ok=no])
+ fi
+ LDFLAGS="$LDFLAGS_old"
+ fi
fi
-if test "x$OpenGL_ok" = "xno"
-then
- AC_CHECK_HEADERS(GL/gl.h, [OpenGL_ok=yes])
+if test "x${OpenGL_headers_ok}" = "xno" ; then
+ AC_CHECK_HEADER(GL/gl.h,
+ [OpenGL_headers_ok=yes],
+ [OpenGL_headers_ok=no])
fi
-if test "x$OpenGL_ok" = "xno"
-then
# under SunOS ?
+if test "x${OpenGL_headers_ok}" = "xno" ; then
AC_CHECK_HEADERS(/usr/openwin/share/include/GL/glxmd.h,
- [OpenGL_ok=yes]
- OGL_INCLUDES="-I/usr/openwin/share/include/")
+ [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/usr/openwin/share/include/"],
+ [OpenGL_headers_ok=no])
fi
-if test "x$OpenGL_ok" = "xno"
-then
# under IRIX ?
+if test "x${OpenGL_headers_ok}" = "xno" ; then
AC_CHECK_HEADERS(/opt/graphics/OpenGL/include/GL/glxmd.h,
- [OpenGL_ok=yes]
- OGL_INCLUDES="-I/opt/graphics/OpenGL/include")
+ [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/opt/graphics/OpenGL/include"],
+ [OpenGL_headers_ok=no])
fi
-if test "x$OpenGL_ok" = "xno"
-then
+
# some linux OpenGL servers hide the includes in /usr/X11R6/include/GL
+if test "x${OpenGL_headers_ok}" = "xno" ; then
AC_CHECK_HEADERS(/usr/X11R6/include/GL/gl.h,
- [OpenGL_ok=yes]
- OGL_INCLUDES="-I/usr/X11R6/include")
+ [OpenGL_headers_ok=yes; OGL_INCLUDES="-I/usr/X11R6/include"],
+ [OpenGL_headers_ok=no])
fi
-if test "x$OpenGL_ok" = "xyes"
-then
+if test "x${OpenGL_headers_ok}" = "xyes" ; then
AC_CHECKING(for OpenGL library)
- OpenGL_ok=no
- for i in $dirs; do
- if test -r "$i/libGL.so"; then
-dnl AC_MSG_RESULT(in $i)
- if test "x$i" = "x/usr/lib"
- then
- OGL_LIBS=""
+ for idir in $dirs; do
+ if test -r "${idir}/libGL.so"; then
+ AC_MSG_RESULT(in ${idir})
+ if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
+ GL_LIB_PATH=""
else
- OGL_LIBS="-L$i"
+ GL_LIB_PATH="-L${idir}"
fi
break
fi
-# under IRIX ?
- if test -r "$i/libGL.sl"; then
-dnl AC_MSG_RESULT(in $i)
- if test "x$i" = "x/usr/lib"
- then
- OGL_LIBS=""
+ # under IRIX ?
+ if test -r "${idir}/libGL.sl"; then
+ AC_MSG_RESULT(in ${idir})
+ if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
+ GL_LIB_PATH=""
else
- OGL_LIBS="-L$i"
+ GL_LIB_PATH="-L${idir}"
fi
break
fi
done
- LDFLAGS_old="$LDFLAGS"
- LDFLAGS="$LDFLAGS $OGL_LIBS"
- AC_CHECK_LIB(GL,glBegin,OpenGL_ok=yes,OpenGL_ok=no)
+ LDFLAGS_old="${LDFLAGS}"
+ LDFLAGS="${LDFLAGS} ${GL_LIB_PATH}"
+ AC_CHECK_LIB([GL],
+ [glBegin],
+ [OpenGL_libs_ok=yes],
+ [OpenGL_libs_ok=no])
+ if test "x${OpenGL_libs_ok}" = "xyes" ; then
+ AC_TRY_LINK([],
+ [],
+ [OpenGL_libs_ok=yes ; OGL_LIBS="${OGL_LIBS} ${GL_LIB_PATH} -lGL"],
+ [OpenGL_libs_ok=no])
+ fi
LDFLAGS="$LDFLAGS_old"
fi
-if test "x$OpenGL_ok" = "xyes" ; then
- OGL_LIBS="$OGL_LIBS -lGL"
-fi
+if test "x${OpenGL_libs_ok}" = "xyes" ; then
+ for idir in $dirs; do
+ if test -r "${idir}/libGLU.so"; then
+ AC_MSG_RESULT(in ${idir})
+ if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
+ GLU_LIB_PATH=""
+ else
+ GLU_LIB_PATH="-L${idir}"
+ fi
+ break
+ fi
+ # under IRIX ?
+ if test -r "${idir}/libGLU.sl"; then
+ AC_MSG_RESULT(in ${idir})
+ if test "x${idir}" = "x/usr/lib64" -o "x${idir}" = "x/usr/lib" ; then
+ GLU_LIB_PATH=""
+ else
+ GLU_LIB_PATH="-L${idir}"
+ fi
+ break
+ fi
+ done
+ # workaround a problem with libGL library location
+ for idir in $dirs; do
+ if test -r "${idir}/libGLU.la"; then
+ GLU_LA_PATH="${idir}/libGLU.la"
+ GL_LA_PATH_TO_CHECK=`cat ${GLU_LA_PATH} | awk '{ for(i=1;i<NF;i++){ if(gsub("libGL.la","&",$i)>0) print $i } }'`
+ if test -z ${GL_LA_PATH_TO_CHECK} || test -r ${GL_LA_PATH_TO_CHECK}; then
+ # nothing to do
+ break
+ fi
+ for jdir in $dirs; do
+ if test -r "${jdir}/libGL.la"; then
+ GL_LA_PATH="${jdir}/libGL.la"
+ # copy the libGLU.la file and set correct libGL.la path in it
+ NEW_GLU_LA_PATH=${ROOT_BUILDDIR}
+ NEW_GLU_LA_FILE="${NEW_GLU_LA_PATH}/libGLU.la"
+ sed -e "s%${GL_LA_PATH_TO_CHECK}%${GL_LA_PATH}%" ${GLU_LA_PATH} > "${NEW_GLU_LA_FILE}"
+ chmod -f --reference=${GLU_LA_PATH} "${NEW_GLU_LA_FILE}"
+ # set a new libGLU.la path
+ GLU_LIB_PATH="-L${NEW_GLU_LA_PATH}"
+ # create a simbolic link to libGLU.so
+ for kdir in $dirs; do
+ if test -r "${kdir}/libGLU.so"; then
+ cp -fs "${kdir}/libGLU.so" "${NEW_GLU_LA_PATH}/libGLU.so"
+ break
+ fi
+ done
+ break
+ fi
+ done
+ break
+ fi
+ done
-OpenGLU_ok=no
-LDFLAGS_old="$LDFLAGS"
-LDFLAGS="$LDFLAGS $OGL_LIBS"
-AC_CHECK_LIB(GLU,gluBeginSurface,OpenGLU_ok=yes,OpenGLU_ok=no)
-LDFLAGS="$LDFLAGS_old"
+ LDFLAGS_old="${LDFLAGS}"
+ LDFLAGS="${LDFLAGS} ${OGL_LIBS} ${GLU_LIB_PATH}"
+ AC_CHECK_LIB([GLU],
+ [gluBeginSurface],
+ [OpenGL_libs_ok=yes],
+ [OpenGL_libs_ok=no])
+ if test "x${OpenGL_libs_ok}" = "xyes" ; then
+ AC_TRY_LINK([],
+ [],
+ [OpenGL_libs_ok=yes ; OGL_LIBS="${OGL_LIBS} ${GLU_LIB_PATH} -lGLU"],
+ [OpenGL_libs_ok=no])
+ fi
+ LDFLAGS="$LDFLAGS_old"
+fi
-if test "x$OpenGLU_ok" = "xyes" ; then
- OGL_LIBS="$OGL_LIBS -lGLU"
+if test "x${OpenGL_headers_ok}" = "xyes" ; then
+ if test "x${OpenGL_libs_ok}" = "xyes" ; then
+ OpenGL_ok=yes
+ fi
fi
-# Save cache
-AC_CACHE_SAVE
+AC_MSG_RESULT(for OpenGL_headers_ok: $OpenGL_headers_ok)
+AC_MSG_RESULT(for OpenGL_libs_ok: $OpenGL_libs_ok)
+AC_MSG_RESULT(for OpenGL_ok: $OpenGL_ok)
+
+AC_SUBST(OGL_INCLUDES)
+AC_SUBST(OGL_LIBS)
+
+AC_LANG_RESTORE
])dnl
+
