Rename configure.in to configure.ac.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11998 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 0 insertions, 1522 deletions

diff --git a/configure.in b/configure.in
deleted file mode 100644
index 1c7e1deff..000000000
--- a/configure.in
+++ /dev/null
@@ -1,1522 +0,0 @@
-dnl -*- sh -*-
-dnl the "configure" script is made from this by running GNU "autoconf"
-dnl
-dnl "$Id$"
-dnl
-dnl Configuration script for the Fast Light Tool Kit (FLTK).
-dnl
-dnl Copyright 1998-2015 by Bill Spitzak and others.
-dnl
-dnl This library is free software. Distribution and use rights are outlined in
-dnl the file "COPYING" which should have been included with this file.  If this
-dnl file is missing or damaged, see the license at:
-dnl
-dnl     http://www.fltk.org/COPYING.php
-dnl
-dnl Please report all bugs and problems on the following page:
-dnl
-dnl      http://www.fltk.org/str.php
-dnl
-
-dnl We need at least autoconf 2.50...
-AC_PREREQ([2.50])
-
-dnl Required file in package...
-AC_INIT(src/Fl.cxx)
-
-AC_CANONICAL_HOST
-
-dnl Do not automatically add "-g" to compiler options...
-dnl This must be _before_ "Find compiler commands..."
-ARCHFLAGS="${ARCHFLAGS:=}"
-CFLAGS="${CFLAGS:=}"
-CPPFLAGS="${CPPFLAGS:=}"
-CXXFLAGS="${CXXFLAGS:=}"
-DSOFLAGS="${DSOFLAGS:=}"
-LDFLAGS="${LDFLAGS:=}"
-OPTIM="${OPTIM:=}"
-
-dnl Find compiler commands...
-AC_PROG_CC
-AC_PROG_CXX
-
-dnl So --with-archflags option is used during "checking size of long"
-case $host_os in
-    darwin*)
-        if test "x$with_archflags" != x ; then
-            CFLAGS="$CFLAGS $with_archflags"
-        fi
-        ;;
-esac
-
-dnl FLTK library versions...
-FL_MAJOR_VERSION=1
-FL_MINOR_VERSION=4
-FL_PATCH_VERSION=0
-FL_DSO_VERSION=${FL_MAJOR_VERSION}.${FL_MINOR_VERSION}
-FL_ABI_VERSION=${FL_MAJOR_VERSION}.${FL_MINOR_VERSION}.0
-FL_VERSION=${FL_MAJOR_VERSION}.${FL_MINOR_VERSION}.${FL_PATCH_VERSION}
-
-AC_SUBST(FL_MAJOR_VERSION)
-AC_SUBST(FL_MINOR_VERSION)
-AC_SUBST(FL_PATCH_VERSION)
-AC_SUBST(FL_DSO_VERSION)
-AC_SUBST(FL_ABI_VERSION)
-AC_SUBST(FL_VERSION)
-
-AC_SUBST(ARCHFLAGS)
-AC_SUBST(OPTIM)
-
-dnl FLTK build options to be used in Makefiles (defined in makeinclude)
-BUILD=""
-
-dnl OS-specific pre-tests...
-dnl host_os_gui equals $host_os unless we target Cygwin or Darwin in combination with X11.
-host_os_gui=$host_os
-case $host_os in
-    cygwin*)
-        # Handle Cygwin option *first*, before all other tests.
-	AC_ARG_ENABLE(cygwin, [  --enable-cygwin         use the Cygwin libraries [[default=no]]])
-	AC_ARG_ENABLE(x11,    [  --enable-x11            with Cygwin or Mac OS, use X11 [[default=no]]])
-	if test x$enable_cygwin = xyes; then
-	    # we target Cygwin in combination with X11
-	    if test x$enable_x11 = xyes; then
-		host_os_gui="X11$host_os"
-	    fi
-	fi
-	;;
-    darwin*)
-	if test x$enable_x11 = xyes; then
-		host_os_gui="X11"
-		OPTIM="-U__APPLE__ $OPTIM"
-	fi
-	;;
-   *)
-   ;;
-esac
-
-dnl Define the libraries and link options we will need.
-LINKFLTK="../lib/libfltk.a"
-LINKFLTKFORMS="../lib/libfltk_forms.a"
-LINKFLTKGL="../lib/libfltk_gl.a"
-LINKFLTKIMG="../lib/libfltk_images.a"
-GLDEMOS="gldemos"
-
-LIBEXT=".a"
-LIBNAME="../lib/libfltk.a"
-FLLIBNAME="../lib/libfltk_forms.a"
-GLLIBNAME="../lib/libfltk_gl.a"
-IMGLIBNAME="../lib/libfltk_images.a"
-CAIROLIBNAME="../lib/libfltk_cairo.a"
-
-LIBBASENAME="libfltk.a"
-FLLIBBASENAME="libfltk_forms.a"
-GLLIBBASENAME="libfltk_gl.a"
-IMGLIBBASENAME="libfltk_images.a"
-CAIROLIBBASENAME="libfltk_cairo.a"
-
-dnl Check for Cairo library unless disabled...
-CAIRODIR=""
-CAIROFLAGS=""
-LINKFLTKCAIRO=""
-FLTKCAIROOPTION=""
-CAIROLIBS=""
-
-AC_ARG_ENABLE(cairoext,[  --enable-cairoext       use fltk code instrumentation for cairo extended use [[default=no]]])
-AC_ARG_ENABLE(cairo,   [  --enable-cairo          use lib Cairo [[default=no]]])
-
-if test x$enable_cairoext = xyes; then
-	  AC_DEFINE(FLTK_USE_CAIRO)
-	  AC_DEFINE(FLTK_HAVE_CAIRO)
-	  dnl FIXME This part should be fixed so configure do not depend on
-	  dnl we do not rely on pkg-config .
-	  CAIRODIR="cairo"
-          CAIROFLAGS="`pkg-config --cflags cairo`"
-          CAIROLIBS="-lcairo -lpixman-1"
-          CXXFLAGS="$CAIROFLAGS $CXXFLAGS"
-	  LINKFLTKCAIRO="../lib/libfltk_cairo.a"
-	  FLTKCAIROOPTION="-L ../cairo -lfltk_cairo$SHAREDSUFFIX"
-	  LIBS="$CAIROLIBS $LIBS" 
-	  dnl $LINKFLTKCAIRO 
-	  LINKFLTK+=" $LINKFLTKCAIRO"
-else 
-    if test x$enable_cairo = xyes; then
-	  AC_DEFINE(FLTK_HAVE_CAIRO)
-	  dnl FIXME This part should be fixed so configure do not depend on
-	  dnl we do not rely on pkg-config .
-	  CAIRODIR="cairo"
-          CAIROFLAGS="`pkg-config --cflags cairo`"
-          CAIROLIBS="-lcairo -lpixman-1"
-          CXXFLAGS="$CAIROFLAGS $CXXFLAGS"
-	  LINKFLTKCAIRO="../lib/libfltk_cairo.a"
-	  FLTKCAIROOPTION="-L ../cairo -lfltk_cairo$SHAREDSUFFIX"
-    fi
-fi
-
-AC_SUBST(CAIRODIR)
-AC_SUBST(CAIROFLAGS)
-AC_SUBST(CAIROLIBS)
-AC_SUBST(LINKFLTKCAIRO)
-AC_SUBST(FLTKCAIROOPTION)
-
-
-AC_SUBST(FLLIBNAME)
-AC_SUBST(GLDEMOS)
-AC_SUBST(GLLIBNAME)
-AC_SUBST(IMGLIBNAME)
-AC_SUBST(CAIROLIBNAME)
-AC_SUBST(LIBEXT)
-AC_SUBST(LIBNAME)
-AC_SUBST(LINKFLTK)
-AC_SUBST(LINKFLTKFORMS)
-AC_SUBST(LINKFLTKGL)
-AC_SUBST(LINKFLTKIMG)
-
-AC_SUBST(LIBBASENAME)
-AC_SUBST(FLLIBBASENAME)
-AC_SUBST(GLLIBBASENAME)
-AC_SUBST(IMGLIBBASENAME)
-AC_SUBST(CAIROLIBBASENAME)
-
-has_abiversion=""
-AC_ARG_WITH(abiversion,
-[  --with-abiversion       Build with FL_ABI_VERSION, e.g. 10304 for FLTK 1.3.4])
-has_abiversion="$with_abiversion"
-if test "$has_abiversion" = "yes" ; then
- has_abiversion=""
-else
- if test "$has_abiversion" = "no" ; then
-  has_abiversion=""
- fi
-fi
-if test ! "$has_abiversion" = "" ; then
- AC_DEFINE_UNQUOTED(FL_ABI_VERSION, [$has_abiversion], [define to FL_ABI_VERSION])
-fi
-
-dnl Handle compile-time options...
-AC_ARG_ENABLE(debug, [  --enable-debug          turn on debugging [[default=no]]])
-if test x$enable_debug = xyes; then
-    DEBUGFLAG="-g "
-else
-    DEBUGFLAG=""
-fi
-
-AC_ARG_ENABLE(cp936, [  --enable-cp936          turn on CP936 [[default=no]]])
-if test x$enable_cp936 = xyes; then
-    CFLAGS="$CFLAGS -DCP936"
-fi
-
-
-AC_ARG_ENABLE(gl, [  --enable-gl             turn on OpenGL support [[default=yes]]])
-
-AC_ARG_ENABLE(shared, [  --enable-shared         turn on shared libraries [[default=no]]])
-if test x$enable_shared = xyes; then
-    PICFLAG=1
-    SHAREDSUFFIX=""
-    FLUID="fluid-shared"
-
-    case $host_os in
-	darwin*)
-            DSONAME="libfltk.$FL_DSO_VERSION.dylib"
-            FLDSONAME="libfltk_forms.$FL_DSO_VERSION.dylib"
-            GLDSONAME="libfltk_gl.$FL_DSO_VERSION.dylib"
-            IMGDSONAME="libfltk_images.$FL_DSO_VERSION.dylib"
-            CAIRODSONAME="libfltk_cairo.$FL_DSO_VERSION.dylib"
-	    DSOCOMMAND="\$(CXX) \$(ARCHFLAGS) \$(DSOFLAGS) -dynamiclib -lc -o"
-	    ;;
-
-	solaris*)
-            DSONAME="libfltk.so.$FL_DSO_VERSION"
-            FLDSONAME="libfltk_forms.so.$FL_DSO_VERSION"
-            GLDSONAME="libfltk_gl.so.$FL_DSO_VERSION"
-            IMGDSONAME="libfltk_images.so.$FL_DSO_VERSION"
-            CAIRODSONAME="libfltk_cairo.so.$FL_DSO_VERSION"
-	    DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -h \$@ \$(LDLIBS) -G $DEBUGFLAG -o"
-	    if test "x$libdir" != "x/usr/lib"; then
-		    DSOLINK="-R$libdir"
-            fi
-	    ;;
-	hpux*)
-            DSONAME="libfltk.sl.$FL_DSO_VERSION"
-            FLDSONAME="libfltk_forms.sl.$FL_DSO_VERSION"
-            GLDSONAME="libfltk_gl.sl.$FL_DSO_VERSION"
-            IMGDSONAME="libfltk_images.sl.$FL_DSO_VERSION"
-            CAIRODSONAME="libfltk_cairo.sl.$FL_DSO_VERSION"
-	    DSOCOMMAND="ld \$(DSOFLAGS) -b -z +h \$@ $DEBUGFLAG -o"
-	    if test "x$libdir" != "x/usr/lib"; then
-		    DSOLINK="-Wl,-rpath,$libdir"
-            fi
-	    ;;
-	irix*)
-            DSONAME="libfltk.so.$FL_DSO_VERSION"
-            FLDSONAME="libfltk_forms.so.$FL_DSO_VERSION"
-            GLDSONAME="libfltk_gl.so.$FL_DSO_VERSION"
-            IMGDSONAME="libfltk_images.so.$FL_DSO_VERSION"
-            CAIRODSONAME="libfltk_cairo.so.$FL_DSO_VERSION"
-            DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@,-set_version,sgi1.1 \$(LDLIBS) -shared $DEBUGFLAG -o"
-	    if test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib32" -a "x$libdir" != "x/usr/lib64"; then
-		    DSOLINK="-Wl,-rpath,$libdir"
-            fi
-	    ;;
-	osf*)
-            DSONAME="libfltk.so.$FL_DSO_VERSION"
-            FLDSONAME="libfltk_forms.so.$FL_DSO_VERSION"
-            GLDSONAME="libfltk_gl.so.$FL_DSO_VERSION"
-            IMGDSONAME="libfltk_images.so.$FL_DSO_VERSION"
-            CAIRODSONAME="libfltk_cairo.so.$FL_DSO_VERSION"
-            DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@ \$(LDLIBS) -shared $DEBUGFLAG -o"
-	    if test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib32"; then
-		    DSOLINK="-Wl,-rpath,$libdir"
-            fi
-	    ;;
-	linux* | *bsd*)
-            DSONAME="libfltk.so.$FL_DSO_VERSION"
-            FLDSONAME="libfltk_forms.so.$FL_DSO_VERSION"
-            GLDSONAME="libfltk_gl.so.$FL_DSO_VERSION"
-            IMGDSONAME="libfltk_images.so.$FL_DSO_VERSION"
-            CAIRODSONAME="libfltk_cairo.so.$FL_DSO_VERSION"
-            DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@ \$(LDLIBS) -shared -fPIC $DEBUGFLAG -o"
-
-            # See if the compiler supports -fvisibility...
-            AC_CACHE_CHECK([if the compiler supports -fvisibility],
-                ac_cv_cxx_fvisibility, [
-                    OLDCXXFLAGS="$CXXFLAGS"
-                    CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
-                    AC_LANG_SAVE
-                    AC_LANG_CPLUSPLUS
-                    AC_TRY_COMPILE(,,
-                        ac_cv_cxx_fvisibility=yes,
-                        ac_cv_cxx_fvisibility=no)
-                    CXXFLAGS="$OLDCXXFLAGS"
-                    AC_LANG_RESTORE
-            ])
-            if test x"$ac_cv_cxx_fvisibility" = xyes; then
-                OPTIM="$OPTIM -fvisibility=hidden"
-            fi
-
-            # See if the compiler supports -fvisibility-inlines-hidden...
-            AC_CACHE_CHECK([if the compiler supports -fvisibility-inlines-hidden],
-                ac_cv_cxx_fvisibility_inlines, [
-                    OLDCXXFLAGS="$CXXFLAGS"
-                    CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
-                    AC_LANG_SAVE
-                    AC_LANG_CPLUSPLUS
-                    AC_TRY_COMPILE(,,
-                        ac_cv_cxx_fvisibility_inlines=yes,
-                        ac_cv_cxx_fvisibility_inlines=no)
-                    CXXFLAGS="$OLDCXXFLAGS"
-                    AC_LANG_RESTORE
-            ])
-            if test x"$ac_cv_cxx_fvisibility_inlines" = xyes; then
-                CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
-            fi
-
-	    if test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib64"; then
-		    DSOLINK="-Wl,-rpath,$libdir"
-            fi
-	    ;;
-	aix*)
-            DSONAME="libfltk_s.a"
-            FLDSONAME="libfltk_forms_s.a"
-            GLDSONAME="libfltk_gl_s.a"
-            IMGDSONAME="libfltk_images_s.a"
-            CAIRODSONAME="libfltk_cairo_s.a"
-            DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-bexpall,-bM:SRE,-bnoentry -o"
-            SHAREDSUFFIX="_s"
-            ;;
-        cygwin* | mingw*)
-	    PICFLAG=0
-	    if test x$enable_cygwin != xyes; then
-		DSONAME="mgwfltknox-$FL_DSO_VERSION.dll"
-		FLDSONAME="mgwfltknox_forms-$FL_DSO_VERSION.dll"
-		GLDSONAME="mgwfltknox_gl-$FL_DSO_VERSION.dll"
-		IMGDSONAME="mgwfltknox_images-$FL_DSO_VERSION.dll"
-		CAIRODSONAME="mgwfltknox_cairo-$FL_DSO_VERSION.dll"
-	    else
-		if test x$enable_x11 = xyes; then
-		    DSONAME="cygfltk-$FL_DSO_VERSION.dll"
-		    FLDSONAME="cygfltk_forms-$FL_DSO_VERSION.dll"
-		    GLDSONAME="cygfltk_gl-$FL_DSO_VERSION.dll"
-		    IMGDSONAME="cygfltk_images-$FL_DSO_VERSION.dll"
-		    CAIRODSONAME="cygfltk_cairo-$FL_DSO_VERSION.dll"
-		else
-		    DSONAME="cygfltknox-$FL_DSO_VERSION.dll"
-		    FLDSONAME="cygfltknox_forms-$FL_DSO_VERSION.dll"
-		    GLDSONAME="cygfltknox_gl-$FL_DSO_VERSION.dll"
-		    IMGDSONAME="cygfltknox_images-$FL_DSO_VERSION.dll"
-		    CAIRODSONAME="cygfltknox_cairo-$FL_DSO_VERSION.dll"
-		fi
-	    fi
-	    #-----------------------------------------------------------
-	    # -Wl,--enable-runtime-pseudo-reloc: See str 1585
-	    # appears to be necessary for older binutils versions < 2.16
-	    #-----------------------------------------------------------
-            LDFLAGS="$LDFLAGS -Wl,--enable-auto-import -Wl,--enable-runtime-pseudo-reloc"
-	    DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -shared \
-	    	-Wl,--whole-archive -Wl,--export-all-symbols \
-		-Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-import \
-		-Wl,--enable-auto-image-base -o \$@"
-	    ;;
-	*)
-            AC_MSG_WARN([Shared libraries may not be supported. Trying -shared option with compiler.])
-            DSONAME="libfltk.so.$FL_DSO_VERSION"
-            FLDSONAME="libfltk_forms.so.$FL_DSO_VERSION"
-            GLDSONAME="libfltk_gl.so.$FL_DSO_VERSION"
-            IMGDSONAME="libfltk_images.so.$FL_DSO_VERSION"
-            CAIRODSONAME="libfltk_cairo.so.$FL_DSO_VERSION"
-            DSOCOMMAND="\$(CXX) \$(DSOFLAGS) -Wl,-soname,\$@ \$(LDLIBS) -shared $DEBUGFLAG -o"
-	    ;;
-    esac
-
-    LINKSHARED="-L../src $FLTKCAIROOPTION -lfltk_images$SHAREDSUFFIX -lfltk_forms$SHAREDSUFFIX -lfltk$SHAREDSUFFIX"
-else
-    DSOCOMMAND="echo"
-    DSOLINK=""
-    DSONAME=""
-    FLDSONAME=""
-    GLDSONAME=""
-    IMGDSONAME=""
-    CAIRODSONAME=""
-    PICFLAG=0
-    SHAREDSUFFIX=""
-    FLUID="fluid"
-    LINKSHARED="$LINKFLTKCAIRO ../lib/libfltk_images.a ../lib/libfltk_forms.a ../lib/libfltk.a"
-fi
-
-AC_SUBST(DSOCOMMAND)
-AC_SUBST(DSOFLAGS)
-AC_SUBST(DSOLINK)
-AC_SUBST(DSONAME)
-AC_SUBST(FLDSONAME)
-AC_SUBST(GLDSONAME)
-AC_SUBST(IMGDSONAME)
-AC_SUBST(CAIRODSONAME)
-AC_SUBST(SHAREDSUFFIX)
-AC_SUBST(LINKSHARED)
-AC_SUBST(FLUID)
-
-AC_ARG_ENABLE(threads, [  --enable-threads        enable multi-threading support [[default=yes]]])
-
-AC_ARG_WITH(optim, [  --with-optim="flags"    use custom optimization flags])
-
-AC_ARG_WITH(archflags, [  --with-archflags="flags"
-                          use custom architecture flags 
-			  (possible Mac OS X values include -arch i386, -arch x86_64, -arch ppc)],
-    ARCHFLAGS="$withval")
-
-dnl Find commands...
-AC_PROG_INSTALL
-case $host_os in
-    osf*)
-	INSTALL="`pwd`/install-sh -c"
-	;;
-esac
-if test "$INSTALL" = "$ac_install_sh"; then
-    # Use full path to install-sh script...
-    INSTALL="`pwd`/install-sh -c"
-fi
-AC_PATH_PROG(NROFF,nroff)
-if test "x$NROFF" = "x:"; then
-    # Try groff instead of nroff...
-    AC_PATH_PROG(GROFF,groff)
-    if test "x$GROFF" = "x:"; then
-        NROFF="echo"
-    else
-        NROFF="$GROFF -T ascii"
-    fi
-fi
-AC_PATH_PROG(DOXYDOC,doxygen)
-
-dnl How do we make libraries?
-AC_PROG_RANLIB
-AC_PATH_TOOL(AR, ar)
-
-if test "x$AR" = "x:"; then
-    AC_MSG_ERROR([Configure could not find the library archiver, aborting.])
-fi
-
-if test "x$RANLIB" != "x:"; then
-    LIBCOMMAND="$AR cr"
-else
-    LIBCOMMAND="$AR crs"
-fi
-
-AC_SUBST(LIBCOMMAND)
-
-dnl how to compile (Windows) resource files
-dnl this will only be used to compile resources for Windows .exe files
-AC_PATH_TOOL(RC,windres)
-
-dnl Architecture checks...
-AC_CHECK_SIZEOF(short, 2)
-AC_CHECK_SIZEOF(int, 4)
-AC_CHECK_SIZEOF(long, 4)
-if test $ac_cv_sizeof_short -eq 2; then
-    AC_DEFINE(U16,unsigned short)
-fi
-if test $ac_cv_sizeof_int -eq 4; then
-    AC_DEFINE(U32,unsigned)
-else
-    if test $ac_cv_sizeof_long -eq 4; then
-        AC_DEFINE(U32,unsigned long)
-    fi
-fi
-case $host_os in
-    darwin*)
-        ;;
-    *)
-        AC_C_BIGENDIAN
-
-	if test $ac_cv_sizeof_int -eq 8; then
-		AC_DEFINE(U64,unsigned)
-	else
-		if test $ac_cv_sizeof_long -eq 8; then
-			AC_DEFINE(U64,unsigned long)
-		fi
-	fi
-        ;;
-esac
-
-dnl Does the C++ compiler support the bool type?
-AC_CACHE_CHECK(whether the compiler recognizes bool as a built-in type,
-    ac_cv_cxx_bool,[
-	AC_LANG_SAVE
-	AC_LANG_CPLUSPLUS
-	AC_TRY_COMPILE([
-	    int f(int  x){return 1;}
-	    int f(char x){return 1;}
-	    int f(bool x){return 1;}
-	],[
-	    bool b = true;
-	    return f(b);
-	], ac_cv_cxx_bool=yes, ac_cv_cxx_bool=no)
-	AC_LANG_RESTORE
-    ])
-
-if test "$ac_cv_cxx_bool" != yes; then
-    CXXFLAGS="-Dbool=char -Dfalse=0 -Dtrue=1 $CXXFLAGS"
-fi
-
-dnl Standard headers and functions...
-AC_HEADER_DIRENT
-AC_CHECK_HEADER(sys/select.h,AC_DEFINE(HAVE_SYS_SELECT_H))
-AC_CHECK_HEADER(sys/stdtypes.h,AC_DEFINE(HAVE_SYS_SELECT_H))
-
-dnl Do we have the POSIX compatible scandir() prototype?
-AC_CACHE_CHECK([whether we have the POSIX compatible scandir() prototype],
-    ac_cv_cxx_scandir_posix,[
-	AC_LANG_SAVE
-	AC_LANG_CPLUSPLUS
-	AC_TRY_COMPILE([
-	  #include <dirent.h>
-	  int func (const char *d, dirent ***list, void *sort) {
-	    int n = scandir(d, list, 0, (int(*)(const dirent **, const dirent **))sort);
-	  }
-	],[
-	], ac_cv_cxx_scandir_posix=yes, ac_cv_cxx_scandir_posix=no)
-	AC_LANG_RESTORE
-    ])
-
-dnl Define both HAVE_SCANDIR... macros, if the POSIX compatible function is
-dnl available. Otherwise: check, whether any scandir prototype is available,
-dnl but dont use it on SunOS and QNX because of an incompatibility in pre-Y2K
-dnl SunOS scandir versions. We assume, though, that the POSIX compatible
-dnl version on newer SunOS/Solaris versions works as expected.
-if test "$ac_cv_cxx_scandir_posix" = yes; then
-    AC_DEFINE(HAVE_SCANDIR)
-    AC_DEFINE(HAVE_SCANDIR_POSIX)
-else
-    AC_CHECK_FUNC(scandir,[
-        case $host_os in
-            solaris* | *qnx*)
-                AC_MSG_WARN([Not using $host_os scandir emulation function.])
-                ;;
-            *)
-                AC_DEFINE(HAVE_SCANDIR)
-                ;;
-        esac])
-fi
-
-AC_CHECK_FUNC(vsnprintf,[
-    case $host_os in
-        hpux1020)
-            AC_MSG_WARN([Not using built-in vsnprintf function because you are running HP-UX 10.20.])
-            ;;
-        osf4)
-            AC_MSG_WARN([Not using built-in vsnprintf function because you are running Tru64 4.0.])
-            ;;
-        *)
-            AC_DEFINE(HAVE_VSNPRINTF)
-            ;;
-    esac])
-AC_CHECK_FUNC(snprintf,[
-    case $host_os in
-        hpux1020)
-            AC_MSG_WARN([Not using built-in snprintf function because you are running HP-UX 10.20.])
-            ;;
-        osf4)
-            AC_MSG_WARN([Not using built-in snprintf function because you are running Tru64 4.0.])
-            ;;
-        *)
-            AC_DEFINE(HAVE_SNPRINTF)
-            ;;
-    esac])
-AC_CHECK_HEADER(strings.h, AC_DEFINE(HAVE_STRINGS_H))
-AC_CHECK_FUNCS(strcasecmp strlcat strlcpy)
-
-AC_CHECK_HEADER(locale.h, AC_DEFINE(HAVE_LOCALE_H))
-AC_CHECK_FUNCS(localeconv)
-
-dnl FLTK library uses math library functions...
-AC_SEARCH_LIBS(pow, m)
-
-dnl Check for largefile support...
-AC_SYS_LARGEFILE
-
-dnl Define largefile options as needed...
-LARGEFILE=""
-if test x$enable_largefile != xno; then
-	LARGEFILE="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
-
-	if test x$ac_cv_sys_large_files = x1; then
-		LARGEFILE="$LARGEFILE -D_LARGE_FILES"
-	fi
-
-	if test x$ac_cv_sys_file_offset_bits = x64; then
-		LARGEFILE="$LARGEFILE -D_FILE_OFFSET_BITS=64"
-	fi
-fi
-AC_SUBST(LARGEFILE)
-
-dnl Check for "long long" support...
-AC_CACHE_CHECK(for long long int, ac_cv_c_long_long,
-	[if test "$GCC" = yes; then
-		ac_cv_c_long_long=yes
-	else
-		AC_TRY_COMPILE(,[long long int i;],
-			ac_cv_c_long_long=yes,
-			ac_cv_c_long_long=no)
-	fi])
-
-if test $ac_cv_c_long_long = yes; then
-	AC_DEFINE(HAVE_LONG_LONG)
-fi
-
-dnl Check for dlopen/dlsym...
-AC_SEARCH_LIBS(dlsym, dl, AC_DEFINE(HAVE_DLSYM))
-AC_CHECK_HEADER(dlfcn.h, AC_DEFINE(HAVE_DLFCN_H))
-
-dnl Check for audio libraries...
-AUDIOLIBS=""
-
-case $host_os in
-    cygwin* | mingw*)
-	dnl Cygwin environment...
-	AUDIOLIBS="-lwinmm"
-	;;
-
-    darwin*)
-	AUDIOLIBS="-framework CoreAudio"
-	;;
-
-    *)
-	AC_CHECK_HEADER(alsa/asoundlib.h,
-	    AC_DEFINE(HAVE_ALSA_ASOUNDLIB_H)
-	    AUDIOLIBS="-lasound")
-        ;;
-esac
-
-AC_SUBST(AUDIOLIBS)
-
-dnl Check for image libraries...
-SAVELIBS="$LIBS"
-IMAGELIBS=""
-STATICIMAGELIBS=""
-
-AC_SUBST(IMAGELIBS)
-AC_SUBST(STATICIMAGELIBS)
-
-# Handle the JPEG lib linking mode (use fltk local or system lib)
-# If --enable-(resp. --disable-)localjpeg parameter is not set by user
-# Then we check the JPEG lib usability, with result in sysjpeglib_ok variable
-AC_ARG_ENABLE(localjpeg, [  --enable-localjpeg      use local JPEG library [[default=auto]]])
-# Check for System lib use if automatic mode or --disable-localjpeg is requested
-sysjpeglib_ok=no
-sysjpeginc_ok=no
-if test x$enable_localjpeg != xyes; then
-    AC_CHECK_LIB(jpeg,jpeg_CreateCompress,
-	[AC_CHECK_HEADER(jpeglib.h,
-	    sysjpeginc_ok=yes)
-	    if test x$sysjpeginc_ok = xyes; then
-		sysjpeglib_ok=yes
-		fi])
-fi
-# Now set the jpeg lib and include flags according to the requested mode and availability 
-if test x$enable_localjpeg = xyes -o x$sysjpeglib_ok = xno; then
-    JPEGINC="-I../jpeg"
-    JPEG="jpeg"
-    IMAGELIBS="-lfltk_jpeg $IMAGELIBS"
-    STATICIMAGELIBS="\$libdir/libfltk_jpeg.a $STATICIMAGELIBS"
-    AC_DEFINE(HAVE_LIBJPEG)
-    #ac_cv_lib_jpeg_jpeg_CreateCompress=no # from ima: should not be necessary
-    # Finally, warn user if system lib was requested but not found
-    if test x$enable_localjpeg = xno; then
-	AC_MSG_WARN([Cannot find system jpeg lib or header: choosing the local lib mode.])
-    fi
-else
-    JPEGINC=""
-    JPEG=""
-    IMAGELIBS="-ljpeg $IMAGELIBS"
-    STATICIMAGELIBS="-ljpeg $STATICIMAGELIBS"
-    AC_DEFINE(HAVE_LIBJPEG)
-fi
-
-# Handle the ZLIB lib linking mode (use fltk local or system lib)
-# If --enable-(resp. --disable-)localzlib parameter is not set by user
-# Then we check the ZLIB lib usability, with result in syszlib_ok variable
-AC_ARG_ENABLE(localzlib, [  --enable-localzlib      use local ZLIB library [[default=auto]]])
-# Check for System lib use if automatic mode or --disable-localzlib is requested
-syszlib_ok=no
-syszinc_ok=no
-if test x$enable_localzlib != xyes; then
-    AC_CHECK_LIB(z,gzgets,
-	[AC_CHECK_HEADER(zlib.h, 
-		syszinc_ok=yes)
-	if test x$syszinc_ok = xyes; then
-	    syszlib_ok=yes
-	    fi])
-fi
-# Now set the Z lib and include flags according to the requested mode and availability 
-if test x$enable_localzlib = xyes -o x$syszlib_ok = xno ; then
-    ZLIBINC="-I../zlib"
-    ZLIB="zlib"
-    LIBS="-lfltk_z $LIBS"
-    IMAGELIBS="-lfltk_z $IMAGELIBS"
-    STATICIMAGELIBS="\$libdir/libfltk_z.a $STATICIMAGELIBS"
-    AC_DEFINE(HAVE_LIBZ)
-    ac_cv_lib_z_gzgets=no # fc: is still necessary ?
-    # Finally, warn user if system lib was requested but not found
-    if test x$enable_localzlib = xno; then
-	AC_MSG_WARN([Cannot find system z lib or header: choosing the local lib mode.])
-    fi
-else
-    ZLIBINC=""
-    ZLIB=""
-    LIBS="-lz $LIBS"
-    IMAGELIBS="-lz $IMAGELIBS"
-    STATICIMAGELIBS="-lz $STATICIMAGELIBS"
-    AC_DEFINE(HAVE_LIBZ)
-fi
-
-# Handle the PNG lib linking mode (use fltk local or system lib)
-# If --enable-(resp. --disable-)localpng parameter is not set by user
-# Then we check the png lib usability with result in syspng_lib variable
-AC_ARG_ENABLE(localpng, [  --enable-localpng       use local PNG library  [[default=auto]]])
-
-# Now check if system lib is usable, we check Lib AND include availability with inc variant,
-# but only, if the builtin lib is not requested
-syspnglib_ok=no
-syspnginc_ok=no
-if test x$enable_localpng != xyes; then
-  AC_CHECK_LIB(png, png_read_info, 
-    [AC_CHECK_HEADER(png.h, 
-	AC_DEFINE(HAVE_PNG_H)
-	syspnginc_ok=yes)
-    AC_CHECK_HEADER(libpng/png.h, 
-	AC_DEFINE(HAVE_LIBPNG_PNG_H)
-	syspnginc_ok=yes)
-    if test x$syspnginc_ok = xyes; then
-	syspnglib_ok=yes
-    fi])
-fi
-
-# The following is executed if the lib was not found usable or if local lib is required explicitly
-if test x$enable_localpng = xyes -o x$syspnglib_ok = xno ; then
-    PNGINC="-I../png"
-    PNG="png"
-    IMAGELIBS="-lfltk_png $IMAGELIBS"
-    STATICIMAGELIBS="\$libdir/libfltk_png.a $STATICIMAGELIBS"
-    AC_DEFINE(HAVE_LIBPNG)
-    AC_DEFINE(HAVE_PNG_H)
-    AC_DEFINE(HAVE_PNG_GET_VALID)
-    AC_DEFINE(HAVE_PNG_SET_TRNS_TO_ALPHA)
-    # Finally, warn user if system lib was requested but not found
-    if test x$enable_localpng = xno; then
-	AC_MSG_WARN([Cannot find system png lib or header: choosing the local lib mode.])
-    fi
-else
-    PNGINC=""
-    PNG=""
-    IMAGELIBS="-lpng $IMAGELIBS"
-    STATICIMAGELIBS="-lpng $STATICIMAGELIBS"
-    AC_DEFINE(HAVE_LIBPNG)
-    AC_CHECK_LIB(png,png_get_valid, AC_DEFINE(HAVE_PNG_GET_VALID))
-    AC_CHECK_LIB(png,png_set_tRNS_to_alpha, AC_DEFINE(HAVE_PNG_SET_TRNS_TO_ALPHA))
-fi
-
-AC_SUBST(JPEG)
-AC_SUBST(JPEGINC)
-AC_SUBST(PNG)
-AC_SUBST(PNGINC)
-AC_SUBST(ZLIB)
-AC_SUBST(ZLIBINC)
-
-dnl Restore original LIBS settings...
-LIBS="$SAVELIBS"
-
-dnl See if we need a .exe extension on executables...
-AC_EXEEXT
-
-dnl Check for pthreads for multi-threaded apps...
-have_pthread=no
-PTHREAD_FLAGS=""
-
-dnl Test whether we want to check for pthreads. We must not do it on Windows
-dnl unless we run under Cygwin with --enable-cygwin, since we always use
-dnl native threads on Windows (even if libpthread is available)
-check_pthread=yes
-case $host_os in
-    mingw*)
-	check_pthread=no
-	;;
-    cygwin*)
-	if test "x$enable_cygwin" != xyes; then
-	    check_pthread=no
-	fi
-	;;
-    *)
-	;;
-esac
-
-if test "x$enable_threads" != xno -a x$check_pthread = xyes; then
-    AC_CHECK_HEADER(pthread.h, AC_DEFINE(HAVE_PTHREAD_H))
-
-    if test x$ac_cv_header_pthread_h = xyes; then
-	dnl Check various threading options for the platforms we support
-	for flag in -lpthreads -lpthread -pthread; do
-            AC_MSG_CHECKING([for pthread_create using $flag])
-	    SAVELIBS="$LIBS"
-	    LIBS="$flag $LIBS"
-            AC_TRY_LINK([#include <pthread.h>],
-		[pthread_create(0, 0, 0, 0);],
-        	have_pthread=yes,
-		LIBS="$SAVELIBS")
-            AC_MSG_RESULT([$have_pthread])
-
-	    if test $have_pthread = yes; then
-	        AC_DEFINE(HAVE_PTHREAD)
-		PTHREAD_FLAGS="-D_THREAD_SAFE -D_REENTRANT"
-
-		# Solaris requires -D_POSIX_PTHREAD_SEMANTICS to
-		# be POSIX-compliant... :(
-		case $host_os in
-		    solaris*)
-		        PTHREAD_FLAGS="$PTHREAD_FLAGS -D_POSIX_PTHREAD_SEMANTICS"
-		        ;;
-		esac
-		break
-	    fi
-	done
-    fi
-fi
-
-AC_SUBST(PTHREAD_FLAGS)
-
-dnl Define OS-specific stuff...
-HLINKS=
-OSX_ONLY=:
-THREADS=
-
-AC_ARG_WITH(links, [  --with-links            make header links for common misspellings [[default=no]]])
-
-INSTALL_DESKTOP=""
-UNINSTALL_DESKTOP=""
-
-case $host_os_gui in
-    cygwin* | mingw*)
-	dnl Cygwin environment, using windows GDI ...
-	# Recent versions of Cygwin are seriously broken and the size
-	# checks don't work because the shell puts out \r\n instead of
-	# \n.  Here we just force U32 to be defined to "unsigned"...
-        AC_DEFINE(U32,unsigned)
-	CFLAGS="-mwindows -DWIN32 -DUSE_OPENGL32 $CFLAGS"
-	CXXFLAGS="-mwindows -DWIN32 -DUSE_OPENGL32 $CXXFLAGS"
-	LDFLAGS="-mwindows $LDFLAGS"
-	DSOFLAGS="-mwindows $DSOFLAGS"
-	LIBS="$LIBS -lole32 -luuid -lcomctl32"
-	#BUILD_GDI="Yes"
-	BUILD="WIN"
-	if test "x$with_optim" = x; then
-	    dnl Avoid -Os optimization on Cygwin/MinGW
-	    with_optim="-O3"
-	fi
-
-	if test x$enable_gl != xno; then
-	    AC_CHECK_HEADER(GL/gl.h,
-	        AC_DEFINE(HAVE_GL)
-		GLLIB="-lopengl32")
-	    AC_CHECK_HEADER(GL/glu.h,
-        	AC_DEFINE(HAVE_GL_GLU_H)
-		GLLIB="-lglu32 $GLLIB")
-	else
-	    LINKFLTKGL=""
-	    GLLIBNAME=""
-	    GLDSONAME=""
-	    GLDEMOS=""
-	fi
-
-	if test "x$enable_threads" != xno; then
-	    if test x$have_pthread = xyes; then
-		AC_DEFINE(HAVE_PTHREAD)
-	    fi
-        fi
-
-	THREADS="threads$EXEEXT"
-
-	# Don't make symlinks since Windows is not case sensitive.
-	if test "x$with_links" != xyes; then
-		HLINKS="#"
-	fi
-	;;
-
-    darwin*)
-	AC_DEFINE(__APPLE_QUARTZ__)
-
-        #USEMMFILES="Yes"
-        BUILD="OSX"
-
-        # MacOS X uses Cocoa for graphics.
-        LIBS="$LIBS -framework Cocoa"
-
-	if test x$have_pthread = xyes; then
-	    AC_DEFINE(HAVE_PTHREAD)
-	    THREADS="threads$EXEEXT"
-	fi
-
-	if test x$enable_gl != xno; then
-            AC_DEFINE(HAVE_GL)
-            AC_DEFINE(HAVE_GL_GLU_H)
-            GLLIB="-framework OpenGL"
-        else
-	    LINKFLTKGL=""
-	    GLLIBNAME=""
-	    GLDSONAME=""
-	    GLDEMOS=""
-        fi
-
-	# Don't make symlinks because HFS+ is not case sensitive...
-	if test "x$with_links" != xyes; then
-		HLINKS="#"
-	fi
-
-	# Some steps are only done for OS X package management
-	OSX_ONLY=
-
-	# Install/Uninstall FLUID application
-	INSTALL_DESKTOP="install-osx"
-	UNINSTALL_DESKTOP="uninstall-osx"
-	;;
-
-    *)
-	# All others are UNIX/X11...
-	# This includes Cygwin target combined with X11
-	if test x$have_pthread = xyes; then
-	    AC_DEFINE(HAVE_PTHREAD)
-	    THREADS="threads$EXEEXT"
-	fi
-
-	dnl Check for X11...
-	AC_PATH_XTRA
-
-	if test x$no_x = xyes; then
-	    AC_MSG_ERROR([Configure could not find required X11 libraries, aborting.])
-	fi
-
-	if test "x$X_PRE_LIBS" != x; then
-	    AC_MSG_WARN([Ignoring libraries "$X_PRE_LIBS" requested by configure.])
-	fi
-
-	LIBS="$LIBS -lX11 $X_EXTRA_LIBS"
-	CFLAGS="$CFLAGS $X_CFLAGS"
-	CXXFLAGS="$CXXFLAGS $X_CFLAGS"
-	LDFLAGS="$X_LIBS $LDFLAGS"
-	DSOFLAGS="$X_LIBS $DSOFLAGS"
-	AC_DEFINE(USE_X11)
-	#BUILD_X11="Yes"
-	BUILD="X11"
-	if test "x$x_includes" != x; then
-	    ac_cpp="$ac_cpp -I$x_includes"
-	fi
-
-	dnl Check for OpenGL unless disabled...
-	GLLIB=
-
-	if test x$enable_gl != xno; then
-	    AC_SEARCH_LIBS(dlopen, dl)
-	    AC_CHECK_HEADER(GL/gl.h,
-		AC_CHECK_LIB(GL, glXMakeCurrent, AC_DEFINE(HAVE_GL) GLLIB="-lGL",
-		    AC_CHECK_LIB(MesaGL,glXMakeCurrent, AC_DEFINE(HAVE_GL) GLLIB=" -lMesaGL",,
-			-lm),
-		    -lm)
-		AC_CHECK_LIB(GL, glXGetProcAddressARB,
-		             AC_DEFINE(HAVE_GLXGETPROCADDRESSARB),, -lm)
-	    )
-	    AC_CHECK_HEADER(GL/glu.h,
-        	AC_DEFINE(HAVE_GL_GLU_H)
-		if test x$ac_cv_lib_GL_glXMakeCurrent = xyes; then
-		    GLLIB="-lGLU $GLLIB"
-		fi
-		if test x$ac_cv_lib_MesaGL_glXMakeCurrent = xyes; then
-		    GLLIB="-lMesaGLU $GLLIB"
-		fi
-	    )
-
-	    if test x$ac_cv_lib_GL_glXMakeCurrent != xyes -a x$ac_cv_lib_MesaGL_glXMakeCurrent != xyes; then
-		    LINKFLTKGL=""
-		    GLLIBNAME=""
-		    GLDSONAME=""
-		    GLDEMOS=""
-	    fi
-	else
-	    LINKFLTKGL=""
-	    GLLIBNAME=""
-	    GLDSONAME=""
-	    GLDEMOS=""
-	fi
-
-	dnl Check for Xinerama support unless disabled...
-        AC_ARG_ENABLE(xinerama, [  --enable-xinerama       turn on Xinerama support [[default=yes]]])
-
-	if test x$enable_xinerama != xno; then
-	    AC_CHECK_LIB(Xinerama,XineramaIsActive,
-		    AC_DEFINE(HAVE_XINERAMA)
-		    LIBS="-lXinerama $LIBS")
-	fi
-
-	dnl Check for the Xft library unless disabled...
-        AC_ARG_ENABLE(xft, [  --enable-xft            turn on Xft support [[default=yes]]])
-
-	if test x$enable_xft != xno; then
-            AC_PATH_PROG(FTCONFIG,freetype-config)
-
-	    if test "x$FTCONFIG" != x; then
-	        CPPFLAGS="`$FTCONFIG --cflags` $CPPFLAGS"
-	        CFLAGS="`$FTCONFIG --cflags` $CFLAGS"
-	        CXXFLAGS="`$FTCONFIG --cflags` $CXXFLAGS"
-
-	        AC_CHECK_LIB(fontconfig, FcPatternCreate)
-		AC_CHECK_HEADER(X11/Xft/Xft.h,
-		    AC_CHECK_LIB(Xft, XftDrawCreate,
-			AC_DEFINE(USE_XFT)
-			#BUILD_XFT="Yes"
-			BUILD="XFT"
-			LIBS="-lXft $LIBS"))
-	    fi
-	fi
-
-	dnl Check for the Xdbe extension unless disabled...
-        AC_ARG_ENABLE(xdbe, [  --enable-xdbe           turn on Xdbe support [[default=yes]]])
-
-	if test x$enable_xdbe != xno; then
-	    AC_CHECK_HEADER(X11/extensions/Xdbe.h, AC_DEFINE(HAVE_XDBE),,
-	        [#include <X11/Xlib.h>])
-	    AC_CHECK_LIB(Xext, XdbeQueryExtension,
-		LIBS="-lXext $LIBS")
-	fi
-
-	dnl Check for the Xfixes extension unless disabled...
-        AC_ARG_ENABLE(xfixes, [  --enable-xfixes         turn on Xfixes support [[default=yes]]])
-
-	if test x$enable_xfixes != xno; then
-	    AC_CHECK_HEADER(X11/extensions/Xfixes.h, AC_DEFINE(HAVE_XFIXES),,
-	        [#include <X11/Xlib.h>])
-	    AC_CHECK_LIB(Xfixes, XFixesQueryExtension,
-		LIBS="-lXfixes $LIBS")
-	fi
-
-	dnl Check for the Xcursor library unless disabled...
-        AC_ARG_ENABLE(xcursor, [  --enable-xcursor        turn on Xcursor support [[default=yes]]])
-
-	if test x$enable_xcursor != xno; then
-	    AC_CHECK_HEADER(X11/Xcursor/Xcursor.h, AC_DEFINE(HAVE_XCURSOR),,
-	        [#include <X11/Xlib.h>])
-	    AC_CHECK_LIB(Xcursor, XcursorImageCreate,
-		LIBS="-lXcursor $LIBS")
-	fi
-
-	dnl Check for the Xrender library unless disabled...
-        AC_ARG_ENABLE(xrender, [  --enable-xrender        turn on Xrender support [[default=yes]]])
-
-	if test x$enable_xrender != xno; then
-	    AC_CHECK_HEADER(X11/extensions/Xrender.h, AC_DEFINE(HAVE_XRENDER),,
-	        [#include <X11/Xlib.h>])
-	    AC_CHECK_LIB(Xrender, XRenderQueryVersion,
-		LIBS="-lXrender $LIBS")
-	fi
-
-	dnl Check for the X11/Xregion.h header file...
-	AC_CHECK_HEADER(X11/Xregion.h, AC_DEFINE(HAVE_X11_XREGION_H),,
-	    [#include <X11/Xlib.h>])
-
-	dnl Check for overlay visuals...
-	AC_PATH_PROG(XPROP, xprop)
-	AC_CACHE_CHECK(for X overlay visuals, ac_cv_have_overlay,
-	    if test "x$XPROP" != x; then
-		if $XPROP -root 2>/dev/null | grep -c "SERVER_OVERLAY_VISUALS" >/dev/null; then
-        	    ac_cv_have_overlay=yes
-		else
-        	    ac_cv_have_overlay=no
-		fi
-	    else
-        	ac_cv_have_overlay=no
-	    fi)
-
-        if test x$ac_cv_have_overlay = xyes; then
-	    AC_DEFINE(HAVE_OVERLAY)
-	fi
-
-	# Make symlinks since UNIX/Linux is case sensitive,
-	# but Cygwin in general not.
-	case $host_os in
-	    cygwin*)
-		HLINKS="#"
-	    ;;
-	    *)
-	    ;;
-	esac
-	# Make symlinks since UNIX/Linux is case sensitive,
-	# but only if explicitly configured (default=no)
-	if test "x$with_links" != xyes; then
-		HLINKS="#"
-	fi
-
-	# Install/Uninstall FLUID application support files
-	INSTALL_DESKTOP="install-linux"
-	UNINSTALL_DESKTOP="uninstall-linux"
-	;;
-esac
-
-AC_SUBST(GLDEMOS)
-AC_SUBST(GLLIB)
-AC_SUBST(HLINKS)
-AC_SUBST(OSX_ONLY)
-AC_SUBST(THREADS)
-
-AC_SUBST(INSTALL_DESKTOP)
-AC_SUBST(UNINSTALL_DESKTOP)
-
-AC_SUBST(BUILD)
-
-dnl Figure out the appropriate formatted man page extension...
-case "$host_os" in
-    *bsd* | darwin*)
-	# *BSD
-	CAT1EXT=0
-	CAT3EXT=0
-	CAT6EXT=0
-	;;
-    irix*)
-	# SGI IRIX
-	CAT1EXT=z
-	CAT3EXT=z
-	CAT6EXT=z
-	;;
-    *)
-	# All others
-	CAT1EXT=1
-	CAT3EXT=3
-	CAT6EXT=6
-	;;
-esac
-
-AC_SUBST(CAT1EXT)
-AC_SUBST(CAT3EXT)
-AC_SUBST(CAT6EXT)
-
-dnl Fix "mandir" variable...
-if test "$mandir" = "\${prefix}/man" -a "$prefix" = "/usr"; then
-    case "$host_os" in
-        *bsd* | darwin* | linux*)
-            # *BSD, Darwin, and Linux
-            mandir="\${prefix}/share/man"
-            ;;
-        irix*)
-            # SGI IRIX
-            mandir="\${prefix}/share/catman"
-            ;;
-    esac
-fi
-
-dnl Fix "libdir" variable...
-if test "$prefix" = NONE; then
-    prefix=/usr/local
-fi
-
-if test "$exec_prefix" = NONE; then
-    exec_prefix="\${prefix}"
-fi
-
-case $host_os in
-    irix[1-5]*)
-        ;;
-    irix*)
-        if test "$libdir" = "\${exec_prefix}/lib" -a "$exec_prefix" = "\${prefix}" -a "$prefix" = "/usr"; then
-            libdir="/usr/lib32"
-        fi
-        ;;
-esac
-
-dnl Define the command used to update the dependencies (this option
-dnl mainly for FLTK core developers - not necessary for users)
-MAKEDEPEND="\$(CXX) -M"
-AC_SUBST(MAKEDEPEND)
-
-dnl Add warnings to compiler switches:
-dnl do this last so messing with switches does not break tests
-
-if test -n "$GCC"; then
-    # Show all standard warnings + unused variables, conversion errors,
-    # and inlining problems when compiling...
-    OPTIM="-Wall -Wunused -Wno-format-y2k $OPTIM"
-
-    # The following additional warnings are useful for tracking down problems...
-    #OPTIM="-Wshadow -Wconversion $OPTIM"
-
-    # We know that Carbon is deprecated on OS X 10.4. To avoid hundreds of warnings
-    # we will temporarily disable 'deprecated' warnings on OS X.
-    case $host_os in
-        darwin[1-7])
-            ;;
-        darwin*)
-            OPTIM="-Wno-deprecated-declarations $OPTIM"
-            ;;
-    esac
-
-    # Set the default compiler optimizations...
-    if test -z "$DEBUGFLAG"; then
-    	#
-	# Note: Can't use -fomit-frame-pointer - prevents tools like
-	#       libsafe from working!
-        #
-	#       Don't use -fforce-mem, -fforce-addr, or -fcaller-saves.
-	#       They all seem to make either no difference or enlarge
-	#       the code by a few hundred bytes.
-        #
-	#       "-Os" seems to be the best compromise between speed and
-	#       code size.  "-O3" and higher seem to make no effective
-	#       difference in the speed of the code, but does bloat the
-	#       library 10+%.
-	#
-
-        if test "x$with_optim" != x; then
-	    OPTIM="$with_optim $OPTIM"
-	else
-            OPTIM="-Os $OPTIM"
-	fi
-    fi
-
-    # Generate position-independent code when needed...
-    if test $PICFLAG = 1; then
-    	OPTIM="$OPTIM -fPIC"
-    fi
-
-    # See if GCC supports -fno-exceptions...
-    AC_MSG_CHECKING([if GCC supports -fno-exceptions])
-    OLDCFLAGS="$CFLAGS"
-    CFLAGS="$CFLAGS -fno-exceptions"
-    AC_TRY_COMPILE(,,
-	OPTIM="$OPTIM -fno-exceptions"
-	AC_MSG_RESULT([yes]),
-	AC_MSG_RESULT([no]))
-    CFLAGS="$OLDCFLAGS"
-
-    # See if GCC supports -fno-strict-aliasing...
-    AC_MSG_CHECKING([if GCC supports -fno-strict-aliasing])
-    OLDCFLAGS="$CFLAGS"
-    CFLAGS="$CFLAGS -fno-strict-aliasing"
-    AC_TRY_COMPILE(,,
-	OPTIM="$OPTIM -fno-strict-aliasing"
-	AC_MSG_RESULT([yes]),
-	AC_MSG_RESULT([no]))
-    CFLAGS="$OLDCFLAGS"
-
-dnl Experimental (as of 17 Feb 2015):
-dnl Make sure that shared libraries don't have undefined references
-    # See if ld supports -no-undefined...
-    AC_MSG_CHECKING([if ld supports -no-undefined])
-    OLDLDFLAGS="$LDFLAGS"
-    LDFLAGS="$LDFLAGS -Wl,-no-undefined"
-    AC_TRY_LINK(,,
-        [DSOFLAGS="$DSOFLAGS -Wl,-no-undefined"]
-        AC_MSG_RESULT([yes]),
-        AC_MSG_RESULT([no]))
-    LDFLAGS="$OLDLDFLAGS"
-
-    # See if ld supports -Bsymbolic-functions...
-    AC_MSG_CHECKING([if ld supports -Bsymbolic-functions])
-    OLDLDFLAGS="$LDFLAGS"
-    LDFLAGS="$LDFLAGS -Wl,-Bsymbolic-functions"
-    AC_TRY_LINK(,,
-        [DSOFLAGS="$DSOFLAGS -Wl,-Bsymbolic-functions"]
-        AC_MSG_RESULT([yes]),
-        AC_MSG_RESULT([no]))
-    LDFLAGS="$OLDLDFLAGS"
-
-    # See if toolchain supports a sectioned build...
-    AC_MSG_CHECKING([if toolchain supports sections])
-    OLDLDFLAGS="$LDFLAGS"
-    OLDCFLAGS="$CFLAGS"
-    LDFLAGS="$LDFLAGS -Wl,-gc-sections"
-    CFLAGS="$CFLAGS -ffunction-sections -fdata-sections"
-    AC_TRY_LINK(,,
-        [DSOFLAGS="$DSOFLAGS -Wl,-gc-sections"
-        OPTIM="$OPTIM -ffunction-sections -fdata-sections"]
-        AC_MSG_RESULT([yes]),
-        AC_MSG_RESULT([no]))
-    LDFLAGS="$OLDLDFLAGS"
-    CFLAGS="$OLDCFLAGS"
-
-    # See if we are running Solaris; if so, try the -fpermissive option...
-    # This option is required on some versions of Solaris to work around
-    # bugs in the X headers up through Solaris 7.
-    #
-    # Unlike the other compiler/optimization settings, this one is placed
-    # in CFLAGS and CXXFLAGS so that fltk-config will provide the option
-    # to clients - otherwise client apps will not compile properly...
-    case $host_os in
-        solaris*)
-	    AC_MSG_CHECKING([if GCC supports -fpermissive])
-
-	    OLDCFLAGS="$CFLAGS"
-	    CFLAGS="$CFLAGS -fpermissive"
-	    AC_TRY_COMPILE(,,
-	        CXXFLAGS="$CXXFLAGS -fpermissive"
-	        AC_MSG_RESULT([yes]),
-	        CFLAGS="$OLDCFLAGS"
-	        AC_MSG_RESULT([no]))
-	    ;;
-    esac
-else
-    case "$host_os" in
-        irix*)
-	    # Running some flavor of IRIX; see which version and
-	    # set things up according...
-	    if test "$uversion" -ge 62; then
-	        # We are running IRIX 6.2 or higher; uncomment the following
-		# lines if you don't have IDO 7.2 or higher:
-		#
-		#     CXX="CC -n32 -mips3"
-		#     CC="cc -n32 -mips3"
-		#     LD="ld -n32 -mips3"
-		#     MAKEDEPEND="CC -M"
-
-		if test "x`grep abi=n32 /etc/compiler.defaults`" = x; then
-			AC_MSG_WARN([FOR BEST RESULTS BEFORE COMPILING: setenv SGI_ABI "-n32 -mips3"])
-		fi
-
-        	OPTIM="-fullwarn $OPTIM"
-	    fi
-	    if test -z "$DEBUGFLAG"; then
-        	if test "x$with_optim" != x; then
-		    OPTIM="$with_optim $OPTIM"
-		else
-        	    OPTIM="-O2 $OPTIM"
-		    if test $uversion -gt 62; then
-        	        OPTIM="-OPT:Olimit=4000 $OPTIM"
-	            fi
-		fi
-	    fi
-	    ;;
-	hpux*)
-	    # Running HP-UX; these options should work for the HP compilers.
-	    if test -z "$DEBUGFLAG"; then
-        	if test "x$with_optim" != x; then
-		    OPTIM="$with_optim $OPTIM"
-		else
-        	    OPTIM="+O2 $OPTIM"
-		fi
-	    fi
-
-	    if test $PICFLAG = 1; then
-		OPTIM="+z $OPTIM"
-	    fi
-
-	    CXXFLAGS="$CXXFLAGS +W336,501,736,740,749,829"
-	    ;;
-	OSF1*)
-	    # Running Digital/Tru64 UNIX; these options should work for the
-	    # Digital/Compaq/NewHP compilers.
-	    if test -z "$DEBUGFLAG"; then
-        	if test "x$with_optim" != x; then
-		    OPTIM="$with_optim $OPTIM"
-		else
-        	    OPTIM="-O2 $OPTIM"
-		fi
-	    fi
-	    ;;
-	solaris*)
-	    # Solaris
-	    if test -z "$DEBUGFLAG"; then
-        	if test "x$with_optim" != x; then
-		    OPTIM="$with_optim $OPTIM"
-		else
-        	    OPTIM="-xO3 $OPTIM"
-		fi
-	    fi
-
-	    if test $PICFLAG = 1; then
-		OPTIM="-KPIC $OPTIM"
-	    fi
-	    ;;
-	aix*)
-	    if test -z "$DEBUGFLAG"; then
-        	if test "x$with_optim" != x; then
-		    OPTIM="$with_optim $OPTIM"
-		else
-        	    OPTIM="-O2 $OPTIM"
-		fi
-	    fi
-
-	    AC_MSG_WARN([The AIX C and C++ compilers are known not to correctly compile the FLTK library.])
-	    ;;
-	*)
-	    # Running some other operating system; inform the user they
-	    # should contribute the necessary options via the STR form..
-	    AC_MSG_WARN([Building FLTK with default compiler optimizations])
-	    AC_MSG_WARN([Send the FLTK developers your uname and compiler options via http://www.fltk.org/str.php])
-	    ;;
-    esac
-fi
-
-OPTIM="$DEBUGFLAG $OPTIM"
-
-dnl Take archflags away from CFLAGS (makefiles use ARCHFLAGS explicitly)
-case $host_os in
-    darwin*)
-        if test "x$with_archflags" != x ; then
-            CFLAGS="`echo $CFLAGS | sed -e "s/$with_archflags//g"`"
-        fi
-        ;;
-esac
-
-dnl Define the FLTK documentation directory...
-case $host_os in
-  mingw*)
-     # Determine the path where MSys has /usr installed
- 	msyspath=`mount | grep '\/usr ' | cut -d ' ' -f -1 | sed -e 's/\\\/\// g'`
-     # Then substitute that in the WIN32 path instead of /usr
- 	AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "$msyspath/local/share/doc/fltk")
-    ;;
-  *)
-    if test x$prefix = xNONE; then
-	AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "/usr/local/share/doc/fltk")
-    else
-	AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "$prefix/share/doc/fltk")
-    fi
-    ;;
-esac
-
-dnl Define the FLTK data directory...
-if test x$prefix = xNONE; then
-    AC_DEFINE_UNQUOTED(FLTK_DATADIR, "/usr/local/share/fltk")
-else
-    AC_DEFINE_UNQUOTED(FLTK_DATADIR, "$prefix/share/fltk")
-fi
-
-dnl Summarize results of configure tests...
-echo ""
-echo "Configuration Summary"
-echo "-------------------------------------------------------------------------"
-
-case $host_os_gui in
-    cygwin* | mingw*)
-        graphics="GDI"
-	;;
-    darwin*)
-        graphics="Quartz"
-        ;;
-    *)
-        graphics="X11"
-	if test x$enable_xft != xno; then
-	    graphics="$graphics+Xft"
-	fi
-	if test x$enable_xdbe != xno; then
-	    graphics="$graphics+Xdbe"
-	fi
-	if test x$enable_xinerama != xno; then
-	    graphics="$graphics+Xinerama"
-	fi
-        ;;
-esac
-
-echo "    Directories: prefix=$prefix"
-echo "                 bindir=$bindir"
-echo "                 datadir=$datadir"
-echo "                 datarootdir=$datarootdir"
-echo "                 exec_prefix=$exec_prefix"
-echo "                 includedir=$includedir"
-echo "                 libdir=$libdir"
-echo "                 mandir=$mandir"
-case $host_os in
-  mingw*)
-    echo "                 MSys docpath=$msyspath/local/share/doc/fltk"
-  ;;
-esac
-echo "       Graphics: $graphics"
-
-if test x$JPEG = x; then
-    echo "Image Libraries: JPEG=System"
-else
-    echo "Image Libraries: JPEG=Builtin"
-fi
-if test x$PNG = x; then
-    echo "                 PNG=System"
-else
-    echo "                 PNG=Builtin"
-fi
-if test x$ZLIB = x; then
-    echo "                 ZLIB=System"
-else
-    echo "                 ZLIB=Builtin"
-fi
-if test x$enable_cairo = xyes; then
-    echo "                 CAIRO=lib"
-fi
-if test x$enable_cairoext = xyes; then
-    echo "                 CAIRO=internal_use"
-fi
-
-
-if test x$enable_largefile != xno; then
-    echo "    Large Files: YES"
-else
-    echo "    Large Files: NO"
-fi
-
-if test x$GLDEMOS = x; then
-    echo "         OpenGL: NO"
-else
-    echo "         OpenGL: YES"
-fi
-
-if test x$THREADS = x; then
-    echo "        Threads: NO"
-else
-    echo "        Threads: YES"
-fi
-
-dnl Set empty BINARY_DIR variable for fltk-config.in (CMake compatibility)
-BINARY_DIR=
-AC_SUBST(BINARY_DIR)
-
-dnl Write all of the files...
-AC_CONFIG_HEADER(config.h:configh.in)
-AC_CONFIG_HEADER(FL/abi-version.h:abi-version.in)
-AC_OUTPUT(makeinclude fltk.list fltk-config fltk.spec FL/Makefile)
-
-dnl Make sure the fltk-config script is executable...
-chmod +x fltk-config
-
-dnl
-dnl End of "$Id$".
-dnl