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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 1998-2020 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 Required file in package...
AC_INIT
AC_CONFIG_SRCDIR([src/Fl.cxx])
AC_CANONICAL_HOST
dnl determine whether we're cross-compiling
if test "$host" != "$build"; then
fltk_cross_compiling="yes"
else
fltk_cross_compiling="no"
fi
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 $with_archflags"
fi
;;
esac
dnl FLTK library versions...
FLTK_VERSION_MAJOR=1
FLTK_VERSION_MINOR=4
FLTK_VERSION_PATCH=0
FLTK_VERSION=${FLTK_VERSION_MAJOR}.${FLTK_VERSION_MINOR}.${FLTK_VERSION_PATCH}
FL_DSO_VERSION=${FLTK_VERSION_MAJOR}.${FLTK_VERSION_MINOR}
FL_ABI_VERSION=${FLTK_VERSION_MAJOR}.${FLTK_VERSION_MINOR}.0
AC_SUBST(FLTK_VERSION_MAJOR)
AC_SUBST(FLTK_VERSION_MINOR)
AC_SUBST(FLTK_VERSION_PATCH)
AC_SUBST(FLTK_VERSION)
AC_SUBST(FL_DSO_VERSION)
AC_SUBST(FL_ABI_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"
macosversion=`sw_vers -productVersion | cut -d. -f2`
macosversion_maj=`sw_vers -productVersion | cut -d. -f1`
if test $macosversion_maj -ge "11" -o $macosversion -ge "13" ; then
CXXFLAGS="$CXXFLAGS -mmacosx-version-min=10.9 -D_LIBCPP_HAS_THREAD_API_PTHREAD"
fi
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"
if test x$enable_pango = xyes -a x$enable_xft = xno; then
AC_MSG_ERROR([--disable-xft and --enable-pango are incompatible because Xft is necessary for pango. Aborting.])
fi
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="$CXXFLAGS -fvisibility=hidden"
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]], [[]])],
[ac_cv_cxx_fvisibility=yes],
[ac_cv_cxx_fvisibility=no])
CXXFLAGS="$OLDCXXFLAGS"
AC_LANG_POP([])
])
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_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]], [[]])],
[ac_cv_cxx_fvisibility_inlines=yes],
[ac_cv_cxx_fvisibility_inlines=no])
CXXFLAGS="$OLDCXXFLAGS"
AC_LANG_POP([])
])
if test x"$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
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 $EXEEXT).
if test "$fltk_cross_compiling" = "yes"; then
FLUID_BUILD="fluid"
else
FLUID_BUILD="../fluid/fluid$EXEEXT"
fi
AC_SUBST(DSOCOMMAND)
AC_SUBST(DSOFLAGS)
AC_SUBST(DSOLINK)
AC_SUBST(DSONAME)
AC_SUBST(FLDSONAME)
AC_SUBST(GLDSONAME)
AC_SUBST(IMGDSONAME)
AC_SUBST(CAIRODSONAME)
AC_SUBST(SHAREDSUFFIX)
AC_SUBST(LINKSHARED)
AC_SUBST(FLUID)
AC_SUBST(FLUID_BUILD)
AC_ARG_ENABLE(threads, [ --enable-threads enable multi-threading support [[default=yes]]])
AC_ARG_WITH(optim, [ --with-optim="flags" use custom optimization flags])
AC_ARG_WITH(archflags, [ --with-archflags="flags"
use custom architecture flags
(possible Mac OS X values include -arch i386, -arch x86_64, -arch ppc)],
ARCHFLAGS="$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 $ac_cv_sizeof_long -eq 8; then
AC_DEFINE(U64,unsigned long)
fi
fi
;;
esac
dnl Does the C++ compiler support the bool type?
AC_CACHE_CHECK(whether the compiler recognizes bool as a built-in type,
ac_cv_cxx_bool,[
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
int f(int x){return 1;}
int f(char x){return 1;}
int f(bool x){return 1;}
]], [[
bool b = true;
return f(b);
]])],
[ac_cv_cxx_bool=yes],
[ac_cv_cxx_bool=no])
AC_LANG_POP([])
])
if test "$ac_cv_cxx_bool" != yes; then
CXXFLAGS="-Dbool=char -Dfalse=0 -Dtrue=1 $CXXFLAGS"
fi
dnl Standard headers and functions...
AC_HEADER_DIRENT
AC_CHECK_HEADERS([sys/select.h sys/stdtypes.h])
dnl Do we have the POSIX compatible scandir() prototype?
AC_CACHE_CHECK([whether we have the POSIX compatible scandir() prototype],
ac_cv_cxx_scandir_posix,[
AC_LANG_PUSH([C++])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM(
[[#include <dirent.h>
int func (const char *d, dirent ***list, void *sort) {
int n = scandir(d, list, 0, (int(*)(const dirent **, const dirent **))sort);
return n;
}
]], [[
]])],
[ac_cv_cxx_scandir_posix=yes],
[ac_cv_cxx_scandir_posix=no])
AC_LANG_POP([])
])
dnl Define both HAVE_SCANDIR... macros, if the POSIX compatible function is
dnl available. Otherwise: check, whether any scandir prototype is available,
dnl but dont use it on SunOS and QNX because of an incompatibility in pre-Y2K
dnl SunOS scandir versions. We assume, though, that the POSIX compatible
dnl version on newer SunOS/Solaris versions works as expected.
if test "$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 $host_os in
hpux1020)
AC_MSG_WARN([Not using built-in snprintf function because you are running HP-UX 10.20.])
;;
osf4)
AC_MSG_WARN([Not using built-in snprintf function because you are running Tru64 4.0.])
;;
*)
AC_DEFINE(HAVE_SNPRINTF)
;;
esac])
AC_CHECK_HEADERS(strings.h)
AC_CHECK_FUNCS(strcasecmp strlcat strlcpy)
AC_CHECK_HEADERS(locale.h)
AC_CHECK_FUNCS(localeconv)
dnl FLTK library uses math library functions...
AC_SEARCH_LIBS(pow, m)
dnl Check for largefile support...
AC_SYS_LARGEFILE
dnl Define largefile options as needed...
LARGEFILE=""
if test x$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_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[]],
[[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 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 $STATICIMAGELIBS"
AC_DEFINE(HAVE_LIBPNG)
AC_CHECK_LIB(png,png_get_valid, AC_DEFINE(HAVE_PNG_GET_VALID))
AC_CHECK_LIB(png,png_set_tRNS_to_alpha, AC_DEFINE(HAVE_PNG_SET_TRNS_TO_ALPHA))
fi
# Handle the JPEG lib linking mode (use fltk local or system lib)
# If --enable-(resp. --disable-)localjpeg parameter is not set by user
# Then we check the JPEG lib usability, with result in sysjpeglib_ok variable
AC_ARG_ENABLE(localjpeg, [ --enable-localjpeg use local JPEG library [[default=auto]]])
# Check for System lib use if automatic mode or --disable-localjpeg is requested
sysjpeglib_ok=no
sysjpeginc_ok=no
if test x$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 $STATICIMAGELIBS"
AC_DEFINE(HAVE_LIBJPEG)
# Finally, warn user if system lib was requested but not found
if test x$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 $STATICIMAGELIBS"
AC_DEFINE(HAVE_LIBJPEG)
fi
AC_SUBST(JPEG)
AC_SUBST(JPEGINC)
AC_SUBST(PNG)
AC_SUBST(PNGINC)
AC_SUBST(ZLIB)
AC_SUBST(ZLIBINC)
# Control the usage of the nanosvg lib and SVG output
AC_ARG_ENABLE(svg, [ --enable-svg read/write SVG files [[default=yes]]])
if test x$enable_svg != xno; then
AC_DEFINE(FLTK_USE_SVG)
fi
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_HEADERS(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 $LIBS"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <pthread.h>]],
[[pthread_create(0, 0, 0, 0);]])],
[have_pthread=yes],
[LIBS="$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)
# 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"
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)
GLLIBS="-lopengl32")
AC_CHECK_HEADER(GL/glu.h,
AC_DEFINE(HAVE_GL_GLU_H)
GLLIBS="-lglu32 $GLLIBS")
else
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
fi
if test "x$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$with_links" != xyes; then
HLINKS="#"
fi
;;
darwin*)
AC_DEFINE(__APPLE_QUARTZ__)
BUILD="OSX"
# MacOS X uses Cocoa for graphics.
LIBS="$LIBS -framework Cocoa"
if test x$have_pthread = xyes; then
AC_DEFINE(HAVE_PTHREAD)
THREADS="threads$EXEEXT"
fi
if test x$enable_gl != xno; then
AC_DEFINE(HAVE_GL)
AC_DEFINE(HAVE_GL_GLU_H)
GLLIBS="-framework OpenGL"
else
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
fi
# Don't make symlinks because HFS+ is not case sensitive...
if test "x$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 $DSOFLAGS"
AC_DEFINE(USE_X11)
BUILD="X11"
if test "x$x_includes" != x; then
ac_cpp="$ac_cpp -I$x_includes"
fi
dnl Check for OpenGL unless disabled...
GLLIBS=
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)
GLLIBS="-lGL"],
AC_CHECK_LIB(MesaGL, glXMakeCurrent,