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configure.ac
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dnl -*- sh -*-
dnl the "configure" script is made from this by running GNU "autoconf"
dnl
dnl Configuration script for the Fast Light Tool Kit (FLTK).
dnl
dnl Copyright 1998-2023 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 https://www.fltk.org/COPYING.php
dnl
dnl Please see the following page on how to report bugs and issues:
dnl
dnl https://www.fltk.org/bugs.php
dnl
dnl We need at least autoconf 2.50...
AC_PREREQ([2.50])
dnl Package name and version
AC_INIT([fltk], [1.4.0], [https://github.com/fltk/fltk/issues], [fltk], [https://www.fltk.org/])
FLTK_VERSION="AC_PACKAGE_VERSION"
FLTK_VERSION_MAJOR=$(echo AC_PACKAGE_VERSION | awk -F. '{print $1}')
FLTK_VERSION_MINOR=$(echo AC_PACKAGE_VERSION | awk -F. '{print $2}')
FLTK_VERSION_PATCH=$(echo AC_PACKAGE_VERSION | awk -F. '{print $3}')
FL_DSO_VERSION="${FLTK_VERSION_MAJOR}.${FLTK_VERSION_MINOR}"
FL_ABI_VERSION="${FLTK_VERSION_MAJOR}.${FLTK_VERSION_MINOR}.0"
AC_SUBST(FLTK_VERSION)
AC_SUBST(FLTK_VERSION_MAJOR)
AC_SUBST(FLTK_VERSION_MINOR)
AC_SUBST(FLTK_VERSION_PATCH)
AC_SUBST(FL_DSO_VERSION)
AC_SUBST(FL_ABI_VERSION)
dnl Required file in package...
AC_CONFIG_SRCDIR([src/Fl.cxx])
AC_CANONICAL_HOST
dnl determine whether we're cross-compiling
AS_IF([test "$host" != "$build"], [
fltk_cross_compiling="yes"
], [
fltk_cross_compiling="no"
])
dnl Do not automatically add "-g" to compiler options...
dnl This must be _before_ "Find compiler commands..."
CFLAGS="${CFLAGS:=}"
CPPFLAGS="${CPPFLAGS:=}"
CXXFLAGS="${CXXFLAGS:=}"
DSOFLAGS="${DSOFLAGS:=}"
LDFLAGS="${LDFLAGS:=}"
LIBS="${LDFLAGS:=}"
dnl Find common commands...
AC_PROG_CC
AC_PROG_CXX
AC_PATH_TOOL(PKGCONFIG, pkg-config)
dnl Architecture and optimization options...
ARCHFLAGS="${ARCHFLAGS:=}"
AC_ARG_WITH([archflags], AS_HELP_STRING([--with-archflags="flags"], [use custom architecture flags (default=none, macOS values include "-arch arm64", "-arch i386", "-arch ppc", and "-arch x86_64")]), [
ARCHFLAGS="$withval"
])
AC_SUBST(ARCHFLAGS)
OPTIM="${OPTIM:=}"
AC_ARG_WITH(optim, AS_HELP_STRING([--with-optim="flags"], [use custom optimization flags]), [
OPTIM="$withval"
])
AC_SUBST(OPTIM)
dnl Other options
AC_ARG_ENABLE([cairo], AS_HELP_STRING([--enable-cairo], [add support for Fl_Cairo_Window]))
AC_ARG_ENABLE([cairoext], AS_HELP_STRING([--enable-cairoext], [use FLTK code instrumentation for Cairo extended use]))
AC_ARG_ENABLE([cp936], AS_HELP_STRING([--enable-cp936], [turn on CP936]))
AS_IF([test x$enable_cp936 = xyes], [
CFLAGS="$CFLAGS -DCP936"
])
AC_ARG_ENABLE([cygwin], AS_HELP_STRING([--enable-cygwin], [use the Cygwin libraries (default=no)]))
AC_ARG_ENABLE([debug], AS_HELP_STRING([--enable-debug], [turn on debugging]))
AS_IF([test x$enable_debug = xyes], [
DEBUGFLAG="-g "
], [
DEBUGFLAG=""
])
AC_ARG_ENABLE([gl], AS_HELP_STRING([--disable-gl], [turn off OpenGL support]))
AC_ARG_ENABLE([localjpeg], AS_HELP_STRING([--enable-localjpeg], [use local JPEG library (default=auto)]))
AC_ARG_ENABLE([localpng], AS_HELP_STRING([--enable-localpng], [use local PNG library (default=auto)]))
AC_ARG_ENABLE([localzlib], AS_HELP_STRING([--enable-localzlib], [use local ZLIB library (default=auto)]))
AC_ARG_ENABLE([pango], AS_HELP_STRING([--enable-pango], [turn on Pango support]))
AC_ARG_ENABLE([wayland], AS_HELP_STRING([--disable-wayland], [turn off hybrid Wayland/X11 support]))
AC_ARG_ENABLE([usecairo], AS_HELP_STRING([--enable-usecairo], [all drawing to X11 windows uses Cairo]))
AC_ARG_ENABLE([use_std], AS_HELP_STRING([--enable-use_std], [allow FLTK to use std::string etc.]))
AC_ARG_ENABLE([print], AS_HELP_STRING([--disable-print], [turn off print support (X11)]))
AS_IF([test x$enable_print = xno], [
AC_DEFINE([FL_NO_PRINT_SUPPORT], [Disable X11 print support?])
])
AC_ARG_ENABLE([shared], AS_HELP_STRING([--enable-shared], [turn on shared libraries]))
AC_ARG_ENABLE([svg], AS_HELP_STRING([--disable-svg], [disable SVG support]))
AS_IF([test x$enable_svg != xno], [
AC_DEFINE([FLTK_USE_SVG], 1, [SVG image support])
])
AC_ARG_ENABLE([threads], AS_HELP_STRING([--disable-threads], [turn off multi-threading support]))
AC_ARG_ENABLE([x11], AS_HELP_STRING([--enable-x11], [use X11 with Cygwin or macOS (default=no)]))
AC_ARG_ENABLE([xcursor], AS_HELP_STRING([--disable-xcursor], [turn off Xcursor support]))
AC_ARG_ENABLE([xfixes], AS_HELP_STRING([--disable-xfixes], [turn off Xfixes support]))
AC_ARG_ENABLE([xft], AS_HELP_STRING([--disable-xft], [turn off Xft support]))
AC_ARG_ENABLE([xinerama], AS_HELP_STRING([--disable-xinerama], [turn off Xinerama support]))
AC_ARG_ENABLE([xrender], AS_HELP_STRING([--disable-xrender], [turn off Xrender support]))
AC_ARG_ENABLE([fluid], AS_HELP_STRING([--disable-fluid], [turn off fluid building]))
AS_CASE([$host_os], [cygwin* | mingw*], [
AC_ARG_ENABLE([gdiplus], AS_HELP_STRING([--disable-gdiplus], [don't use GDI+ for antialiased graphics]))
gdiplus_found=no
AS_IF([test x$enable_gdiplus != xno], [
AC_CHECK_HEADERS([wtypes.h gdiplus.h], [
AC_DEFINE([USE_GDIPLUS])
LIBS="-lgdiplus $LIBS"
gdiplus_found=yes
], [],
[[#include <wtypes.h>]])
])
])
AS_IF([test x$enable_pango = xyes -a x$enable_xft = xno], [
AC_MSG_ERROR([--disable-xft and --enable-pango are incompatible because Xft is necessary for Pango.])
])
dnl So --with-archflags option is used during "checking size of long"
# TODO: Fix long long test
AS_IF([test "x$with_archflags" != x], [
CFLAGS="$CFLAGS $with_archflags"
])
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
AS_CASE([$host_os], [cygwin*], [
# Handle Cygwin option *first*, before all other tests.
AS_IF([test x$enable_cygwin = xyes], [
# we target Cygwin in combination with X11
AS_IF([test x$enable_x11 = xyes], [
host_os_gui="X11$host_os"
])
])
], [darwin*], [
AS_IF([test x$enable_x11 = xyes], [
host_os_gui="X11"
macosversion=$(sw_vers -productVersion | cut -d. -f2)
macosversion_maj=$(sw_vers -productVersion | cut -d. -f1)
AS_IF([test $macosversion_maj -ge 11 -o $macosversion -ge 13], [
CXXFLAGS="$CXXFLAGS -mmacosx-version-min=10.9 -D_LIBCPP_HAS_THREAD_API_PTHREAD"
])
])
])
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=""
AS_IF([test x$enable_cairoext = xyes], [
AS_IF([$PKGCONFIG --exists cairo], [
AC_DEFINE([FLTK_HAVE_CAIROEXT])
AC_DEFINE([FLTK_HAVE_CAIRO])
CAIRODIR="cairo"
CAIROFLAGS="$($PKGCONFIG --cflags cairo)"
CAIROLIBS="$($PKGCONFIG --libs cairo)"
CXXFLAGS="$CAIROFLAGS $CXXFLAGS"
LINKFLTKCAIRO="../lib/libfltk_cairo.a"
FLTKCAIROOPTION="-L ../cairo -lfltk_cairo$SHAREDSUFFIX"
LIBS="$CAIROLIBS $LIBS"
LINKFLTK="$LINKFLTK $LINKFLTKCAIRO"
], [
AC_MSG_ERROR([Cairo requested but not found.])
])
], [test x$enable_cairo = xyes], [
AS_IF([$PKGCONFIG --exists cairo], [
AC_DEFINE(FLTK_HAVE_CAIRO)
CAIRODIR="cairo"
CAIROFLAGS="$($PKGCONFIG --cflags cairo)"
CAIROLIBS="$($PKGCONFIG --libs cairo)"
CXXFLAGS="$CAIROFLAGS $CXXFLAGS"
LINKFLTKCAIRO="../lib/libfltk_cairo.a"
FLTKCAIROOPTION="-L ../cairo -lfltk_cairo$SHAREDSUFFIX"
], [
AC_MSG_ERROR([Cairo requested but not found.])
])
])
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)
AC_ARG_WITH([abiversion], AS_HELP_STRING([--with-abiversion], [Build with FL_ABI_VERSION, e.g. 10304 for FLTK 1.3.4]))
has_abiversion="$with_abiversion"
AS_IF([test "x$has_abiversion" = xyes -o "x$has_abiversion" = xno], [
has_abiversion=""
])
AS_IF([test "x$has_abiversion" != x], [
AC_DEFINE_UNQUOTED([FL_ABI_VERSION], [$has_abiversion], [ABI version number])
])
dnl Handle compile-time options...
AS_IF([test "x$enable_shared" = xyes], [
PICFLAG=1
SHAREDSUFFIX=""
FLUID="fluid-shared"
FLTK_OPTIONS="fltk-options-shared"
AS_CASE([$host_os], [darwin*], [
DSONAME="libfltk.$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) -Wl,-soname,\$@ \$(LDLIBS) -shared -fPIC $DEBUGFLAG -o"
AS_IF([test "x$libdir" != "x/usr/lib"], [
DSOLINK="-R$libdir"
])
], [hpux*], [
DSONAME="libfltk.sl.$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 \$@ $DEBUGFLAG -o"
AS_IF([test "x$libdir" != "x/usr/lib"], [
DSOLINK="-Wl,-rpath,$libdir"
])
], [irix*], [
DSONAME="libfltk.so.$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 $DEBUGFLAG -o"
AS_IF([test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib32" -a "x$libdir" != "x/usr/lib64"], [
DSOLINK="-Wl,-rpath,$libdir"
])
], [osf*], [
DSONAME="libfltk.so.$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 $DEBUGFLAG -o"
AS_IF([test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib32"], [
DSOLINK="-Wl,-rpath,$libdir"
])
], [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="$CXXFLAGS -fvisibility=hidden"
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]], [[]])],
[ac_cv_cxx_fvisibility=yes],
[ac_cv_cxx_fvisibility=no])
CXXFLAGS="$OLDCXXFLAGS"
AC_LANG_POP([])
])
AS_IF([test x"$ac_cv_cxx_fvisibility" = xyes], [
OPTIM="$OPTIM -fvisibility=hidden"
])
# 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_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]], [[]])],
[ac_cv_cxx_fvisibility_inlines=yes],
[ac_cv_cxx_fvisibility_inlines=no])
CXXFLAGS="$OLDCXXFLAGS"
AC_LANG_POP([])
])
AS_IF([test x"$ac_cv_cxx_fvisibility_inlines" = xyes], [
CXXFLAGS="$CXXFLAGS -fvisibility-inlines-hidden"
])
AS_IF([test "x$libdir" != "x/usr/lib" -a "x$libdir" != "x/usr/lib64"], [
DSOLINK="-Wl,-rpath,$libdir"
])
], [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
AS_IF([test x$enable_cygwin != xyes], [
DSONAME="mgwfltknox-$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"
], [test x$enable_x11 = xyes], [
DSONAME="cygfltk-$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"
], [
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-$FL_DSO_VERSION.dll"
])
#-----------------------------------------------------------
# -Wl,--enable-runtime-pseudo-reloc: See str 1585
# appears to be necessary for older binutils versions < 2.16
#-----------------------------------------------------------
LDFLAGS="$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"
])
LINKSHARED="-L../src $FLTKCAIROOPTION -lfltk_images$SHAREDSUFFIX -lfltk_forms$SHAREDSUFFIX -lfltk$SHAREDSUFFIX"
], [
DSOCOMMAND="echo"
DSOLINK=""
DSONAME=""
FLDSONAME=""
GLDSONAME=""
IMGDSONAME=""
CAIRODSONAME=""
PICFLAG=0
SHAREDSUFFIX=""
FLUID="fluid"
FLTK_OPTIONS="fltk-options"
LINKSHARED="$LINKFLTKCAIRO ../lib/libfltk_images.a ../lib/libfltk_forms.a ../lib/libfltk.a"
])
dnl Define the fluid executable used when building the test programs.
dnl In a native build we use the fluid executable created during the build,
dnl in a cross-compilation we use "fluid" which must exist on the build system
dnl and must be in the PATH, i.e. executable as 'fluid' (w/o $EXEEXT).
AS_IF([test "x$fltk_cross_compiling" = xyes], [
FLUID_BUILD="fluid"
], [
FLUID_BUILD="../fluid/fluid$EXEEXT"
])
AC_SUBST([DSOCOMMAND])
AC_SUBST([DSOFLAGS])
AC_SUBST([DSOLINK])
AC_SUBST([DSONAME])
AC_SUBST([FLDSONAME])
AC_SUBST([GLDSONAME])
AC_SUBST([IMGDSONAME])
AC_SUBST([CAIRODSONAME])
AC_SUBST([SHAREDSUFFIX])
AC_SUBST([LINKSHARED])
AC_SUBST([FLUID])
AC_SUBST([FLUID_BUILD])
AC_SUBST([FLTK_OPTIONS])
dnl Find commands...
AC_PROG_INSTALL
AS_CASE([$host_os],
[osf*], [
INSTALL="$(pwd)/install-sh -c"
])
AS_IF([test "x$INSTALL" = "x$ac_install_sh"], [
# Use full path to install-sh script...
INSTALL="$(pwd)/install-sh -c"
])
AC_PATH_PROGS([NROFF], [nroff groff], [echo])
AC_PATH_PROG([DOXYDOC], [doxygen])
dnl How do we make libraries?
AC_PROG_RANLIB
AC_PATH_TOOL([AR], [ar])
AS_IF([test "x$AR" = "x:"], [
AC_MSG_ERROR([Configure could not find the library archiver, aborting.])
])
AS_IF([test "x$RANLIB" != "x:"], [
LIBCOMMAND="$AR cr"
], [
LIBCOMMAND="$AR crs"
])
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)
AS_IF([test $ac_cv_sizeof_short -eq 2], [
AC_DEFINE([U16], [unsigned short])
])
AS_IF([test $ac_cv_sizeof_int -eq 4], [
AC_DEFINE([U32], [unsigned])
], [test $ac_cv_sizeof_long -eq 4], [
AC_DEFINE([U32],[unsigned long])
])
AS_CASE([$host_os], [darwin*], [
], [*], [
AC_C_BIGENDIAN
AS_IF([test $ac_cv_sizeof_int -eq 8], [
AC_DEFINE([U64], [unsigned])
], [test $ac_cv_sizeof_long -eq 8], [
AC_DEFINE([U64], [unsigned long])
])
])
dnl Standard headers and functions...
AC_HEADER_DIRENT
AC_CHECK_HEADERS([sys/select.h sys/stdtypes.h])
dnl Do we have the POSIX compatible scandir() prototype?
AC_CACHE_CHECK([whether we have the POSIX compatible scandir() prototype], ac_cv_cxx_scandir_posix,[
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <dirent.h>
int func (const char *d, dirent ***list, void *sort) {
int n = scandir(d, list, 0, (int(*)(const dirent **, const dirent **))sort);
return n;
}
]], [[
]])],
[ac_cv_cxx_scandir_posix=yes],
[ac_cv_cxx_scandir_posix=no])
AC_LANG_POP([])
])
dnl Define both HAVE_SCANDIR... macros, if the POSIX compatible function is
dnl available. Otherwise: check, whether any scandir prototype is available,
dnl but dont use it on SunOS and QNX because of an incompatibility in pre-Y2K
dnl SunOS scandir versions. We assume, though, that the POSIX compatible
dnl version on newer SunOS/Solaris versions works as expected.
AS_IF([test "x$ac_cv_cxx_scandir_posix" = xyes], [
AC_DEFINE([HAVE_SCANDIR])
AC_DEFINE([HAVE_SCANDIR_POSIX])
], [
AC_CHECK_FUNC([scandir], [
AS_CASE([$host_os], [solaris* | *qnx*], [
AC_MSG_WARN([Not using $host_os scandir emulation function.])
], [*], [
AC_DEFINE([HAVE_SCANDIR])
])
])
])
AC_CHECK_FUNC([vsnprintf], [
AS_CASE([$host_os], [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])
])
])
AC_CHECK_FUNC([snprintf], [
AS_CASE([$host_os], [hpux1020], [
AC_MSG_WARN([Not using built-in snprintf function because you are running HP-UX 10.20.])
], [osf4], [
AC_MSG_WARN([Not using built-in snprintf function because you are running Tru64 4.0.])
], [*], [
AC_DEFINE([HAVE_SNPRINTF])
])
])
AC_CHECK_HEADERS([strings.h])
AC_CHECK_FUNCS([strcasecmp strlcat strlcpy])
AC_CHECK_HEADERS([locale.h])
AC_CHECK_FUNCS([localeconv])
dnl FLTK library uses math library functions...
AC_SEARCH_LIBS([pow], [m])
dnl Check for largefile support...
AC_SYS_LARGEFILE
LARGEFILE=""
AS_IF([test x$enable_largefile != xno], [
LARGEFILE="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE"
AS_IF([test x$ac_cv_sys_large_files = x1], [
LARGEFILE="$LARGEFILE -D_LARGE_FILES"
])
AS_IF([test x$ac_cv_sys_file_offset_bits = x64], [
LARGEFILE="$LARGEFILE -D_FILE_OFFSET_BITS=64"
])
])
AC_SUBST(LARGEFILE)
dnl Check for "long long" support...
AC_CACHE_CHECK([for long long int], [ac_cv_c_long_long], [
AS_IF([test "$GCC" = yes], [
ac_cv_c_long_long=yes
], [
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]],
[[long long int i;]])],
[ac_cv_c_long_long=yes],
[ac_cv_c_long_long=no])
])
])
AS_IF([test $ac_cv_c_long_long = yes], [
AC_DEFINE([HAVE_LONG_LONG])
])
dnl Check for dlopen/dlsym...
AC_SEARCH_LIBS([dlsym], [dl], AC_DEFINE([HAVE_DLSYM]))
AC_CHECK_HEADER([dlfcn.h], AC_DEFINE([HAVE_DLFCN_H]))
dnl Check for audio libraries...
AUDIOLIBS=""
AS_CASE([$host_os], [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"
])
])
AC_SUBST(AUDIOLIBS)
dnl Check for image libraries...
SAVELIBS="$LIBS"
IMAGELIBS=""
STATICIMAGELIBS=""
AC_SUBST([IMAGELIBS])
AC_SUBST([STATICIMAGELIBS])
# Handle the JPEG lib linking mode (use fltk local or system lib)
# If --enable-(resp. --disable-)localjpeg parameter is not set by user
# Then we check the JPEG lib usability, with result in sysjpeglib_ok variable
# Check for System lib use if automatic mode or --disable-localjpeg is requested
sysjpeglib_ok=no
sysjpeginc_ok=no
AS_IF([test x$enable_localjpeg != xyes], [
AC_CHECK_LIB([jpeg], [jpeg_CreateCompress], [
AC_CHECK_HEADER([jpeglib.h], [sysjpeginc_ok=yes])
AS_IF([test x$sysjpeginc_ok = xyes], [
sysjpeglib_ok=yes
])
])
])
# Now set the jpeg lib and include flags according to the requested mode and availability
AS_IF([test x$enable_localjpeg = xyes -o x$sysjpeglib_ok = xno], [
JPEGINC="-I../jpeg"
JPEG="jpeg"
IMAGELIBS="-lfltk_jpeg $IMAGELIBS"
STATICIMAGELIBS="\$libdir/libfltk_jpeg.a $STATICIMAGELIBS"
AC_DEFINE([HAVE_LIBJPEG])
# Finally, warn user if system lib was requested but not found
AS_IF([test x$enable_localjpeg = xno], [
AC_MSG_WARN([Cannot find system jpeg lib or header: choosing the local lib mode.])
])
], [
JPEGINC=""
JPEG=""
IMAGELIBS="-ljpeg $IMAGELIBS"
STATICIMAGELIBS="-ljpeg $STATICIMAGELIBS"
AC_DEFINE([HAVE_LIBJPEG])
])
# Handle the ZLIB lib linking mode (use fltk local or system lib)
# If --enable-(resp. --disable-)localzlib parameter is not set by user
# Then we check the ZLIB lib usability, with result in syszlib_ok variable
# Check for System lib use if automatic mode or --disable-localzlib is requested
syszlib_ok=no
syszinc_ok=no
AS_IF([test x$enable_localzlib != xyes], [
AC_CHECK_LIB([z], [gzgets], [
AC_CHECK_HEADER([zlib.h], [syszinc_ok=yes])
AS_IF([test x$syszinc_ok = xyes], [
syszlib_ok=yes
])
])
])
# Handle the PNG lib linking mode (use fltk local or system lib)
# If --enable-(resp. --disable-)localpng parameter is not set by user
# Then we check the png lib usability with result in syspng_lib variable
# Now check if system lib is usable, we check Lib AND include availability with inc variant,
# but only, if the builtin lib is not requested
syspnglib_ok=no
syspnginc_ok=no
AS_IF([test x$enable_localpng != xyes], [
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], [
syspnginc_ok=yes
])
AS_IF([test x$syspnginc_ok = xyes], [
syspnglib_ok=yes
])
])
])
# If we use the system zlib, we must also use the system png lib and vice versa.
# If either of them is not available, we fall back to using both local libraries
AS_IF([test x$syspnglib_ok = xyes -a x$syszlib_ok != xyes], [
syspnglib_ok=no
enable_localpng=yes
AC_MSG_WARN([Local z lib selected: overriding png lib to local for compatibility.])
])
AS_IF([test x$syszlib_ok = xyes -a x$syspnglib_ok != xyes], [
syszlib_ok=no
enable_localzlib=yes
AC_MSG_WARN([Local png lib selected: overriding z lib to local for compatibility.])
])
# Now set the Z lib and include flags according to the requested mode and availability
AS_IF([test x$enable_localzlib = xyes -o x$syszlib_ok = xno], [
ZLIBINC="-I../zlib"
ZLIB="zlib"
LIBS="-lfltk_z $LIBS"
IMAGELIBS="-lfltk_z $IMAGELIBS"
STATICIMAGELIBS="\$libdir/libfltk_z.a $STATICIMAGELIBS"
AC_DEFINE([HAVE_LIBZ])
ac_cv_lib_z_gzgets=no # fc: is still necessary ?
# Finally, warn user if system lib was requested but not found
AS_IF([test x$enable_localzlib = xno], [
AC_MSG_WARN([Cannot find system z lib or header: choosing the local lib mode.])
])
], [
ZLIBINC=""
ZLIB=""
LIBS="-lz $LIBS"
IMAGELIBS="-lz $IMAGELIBS"
STATICIMAGELIBS="-lz $STATICIMAGELIBS"
AC_DEFINE([HAVE_LIBZ])
])
# The following is executed if the png lib was not found usable or if local lib is required explicitly
AS_IF([test x$enable_localpng = xyes -o x$syspnglib_ok = xno], [
PNGINC="-I../png"
PNG="png"
IMAGELIBS="-lfltk_png $IMAGELIBS"
STATICIMAGELIBS="\$libdir/libfltk_png.a $STATICIMAGELIBS"
AC_DEFINE([HAVE_LIBPNG])
AC_DEFINE([HAVE_PNG_H])
AC_DEFINE([HAVE_PNG_GET_VALID])
AC_DEFINE([HAVE_PNG_SET_TRNS_TO_ALPHA])
# Finally, warn user if system lib was requested but not found
AS_IF([test x$enable_localpng = xno], [
AC_MSG_WARN([Cannot find system png lib or header: choosing the local lib mode.])
])
], [
PNGINC=""
PNG=""
IMAGELIBS="-lpng $IMAGELIBS"
STATICIMAGELIBS="-lpng $STATICIMAGELIBS"
AC_DEFINE([HAVE_LIBPNG])
AC_CHECK_LIB([png], [png_get_valid], [
AC_DEFINE([HAVE_PNG_GET_VALID])
])
AC_CHECK_LIB([png], [png_set_tRNS_to_alpha], [
AC_DEFINE([HAVE_PNG_SET_TRNS_TO_ALPHA])
])
])
AC_SUBST([JPEG])
AC_SUBST([JPEGINC])
AC_SUBST([PNG])
AC_SUBST([PNGINC])
AC_SUBST([HAVE_PNG_H])
AC_SUBST([ZLIB])
AC_SUBST([ZLIBINC])
# Control the usage of the nanosvg lib and SVG output
dnl Restore original LIBS settings...
LIBS="$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
AS_CASE([$host_os], [mingw*], [
check_pthread=no
], [cygwin*], [
AS_IF([test "x$enable_cygwin" != xyes], [
check_pthread=no
])
])
AS_IF([test "x$enable_threads" != xno -a x$check_pthread = xyes], [
AC_CHECK_HEADERS([pthread.h])
AS_IF([test x$ac_cv_header_pthread_h = xyes], [
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 $LIBS"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_create(0, 0, 0, 0);]])],
[have_pthread=yes],
[LIBS="$SAVELIBS"])
AC_MSG_RESULT([$have_pthread])
AS_IF([test $have_pthread = yes], [
AC_DEFINE([HAVE_PTHREAD])
PTHREAD_FLAGS="-D_THREAD_SAFE -D_REENTRANT"
# Solaris requires -D_POSIX_PTHREAD_SEMANTICS to
# be POSIX-compliant... :(
AS_CASE([$host_os], [solaris*], [
PTHREAD_FLAGS="$PTHREAD_FLAGS -D_POSIX_PTHREAD_SEMANTICS"
])
])
done
dnl Check if we have PTHREAD_MUTEX_RECURSIVE
AC_CACHE_CHECK([whether we have PTHREAD_MUTEX_RECURSIVE], ac_cv_pthread_mutex_recursive,[
AC_LANG_PUSH([C])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>
]], [[
return PTHREAD_MUTEX_RECURSIVE;
]])],
[ac_cv_pthread_mutex_recursive=yes],
[ac_cv_pthread_mutex_recursive=no])
AC_LANG_POP([])
])
AS_IF([test x$ac_cv_pthread_mutex_recursive = xyes], [
AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE])
])
])
])
AC_SUBST([PTHREAD_FLAGS])
AC_SUBST([HAVE_PTHREAD_MUTEX_RECURSIVE])
dnl Define OS-specific stuff...
HLINKS=
OSX_ONLY=:
THREADS=
LIBDECORDIR=""
LIBDECORDBUS=""
FLUIDDIR=""
AC_ARG_WITH([links], AS_HELP_STRING([--with-links], [make header links for common misspellings (default=no)]))
INSTALL_DESKTOP=""
UNINSTALL_DESKTOP=""
AS_IF([test x$enable_fluid != xno], [FLUIDDIR="fluid"])
dnl Option use_std - allow std::string and maybe more
AS_IF([test x$enable_use_std = xyes], [
AC_DEFINE([FLTK_USE_STD])
]
)
dnl Platform specific Processing
AS_CASE([$host_os_gui], [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])
# We do no longer define WIN32 or _WIN32 (since FLTK 1.4.0)
# and we don't need to define USE_OPENGL32 (added in svn r6657
# but never used, see STR #2147)
# CFLAGS="-mwindows -D_WIN32 -DUSE_OPENGL32 $CFLAGS"
# CXXFLAGS="-mwindows -D_WIN32 -DUSE_OPENGL32 $CXXFLAGS"
CFLAGS="-mwindows $CFLAGS"
CXXFLAGS="-mwindows $CXXFLAGS"
LDFLAGS="-mwindows $LDFLAGS"
DSOFLAGS="-mwindows $DSOFLAGS"
LIBS="$LIBS -lole32 -luuid -lcomctl32 -lws2_32"
BUILD="WIN"
AS_IF([test "x$with_optim" = x], [
dnl Avoid -Os optimization on Cygwin/MinGW
with_optim="-O3"
])
AS_IF([test x$enable_gl != xno], [
AC_CHECK_HEADER([GL/gl.h], [
AC_DEFINE([HAVE_GL])
GLLIBS="-lopengl32"
])
AC_CHECK_HEADER([GL/glu.h], [
AC_DEFINE([HAVE_GL_GLU_H])
GLLIBS="-lglu32 $GLLIBS"
])
], [
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
])
AS_IF([test "x$enable_threads" != xno -a x$have_pthread = xyes], [
AC_DEFINE([HAVE_PTHREAD])
])
THREADS="threads$EXEEXT"
# Don't make symlinks since Windows is not case sensitive.
AS_IF([test "x$with_links" != xyes], [
HLINKS="#"
])
], [darwin*], [
BUILD="OSX"
# MacOS X uses Cocoa for graphics.
LIBS="$LIBS -framework Cocoa"
AS_IF([test x$have_pthread = xyes], [
AC_DEFINE([HAVE_PTHREAD])
THREADS="threads$EXEEXT"
])
AS_IF([test x$enable_gl != xno], [
AC_DEFINE([HAVE_GL])
AC_DEFINE([HAVE_GL_GLU_H])
GLLIBS="-framework OpenGL"
], [
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
])
# Don't make symlinks because HFS+ is not case sensitive...
AS_IF([test "x$with_links" != xyes], [
HLINKS="#"
])
# Some steps are only done for OS X package management