fltk/configure.in
Michael R Sweet bccdafdaef Fixed from Teun.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@1919 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
2002-01-07 20:40:02 +00:00

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dnl -*- sh -*-
dnl the "configure" script is made from this by running GNU "autoconf"
dnl
dnl "$Id: configure.in,v 1.33.2.31.2.47 2002/01/07 20:40:02 easysw Exp $"
dnl
dnl Configuration script for the Fast Light Tool Kit (FLTK).
dnl
dnl Copyright 1998-2002 by Bill Spitzak and others.
dnl
dnl This library is free software; you can redistribute it and/or
dnl modify it under the terms of the GNU Library General Public
dnl License as published by the Free Software Foundation; either
dnl version 2 of the License, or (at your option) any later version.
dnl
dnl This library is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl Library General Public License for more details.
dnl
dnl You should have received a copy of the GNU Library General Public
dnl License along with this library; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
dnl USA.
dnl
dnl Please report all bugs and problems to "fltk-bugs@fltk.org".
dnl
dnl We need at least autoconf 2.13...
AC_PREREQ(2.13)
dnl Required file in package...
AC_INIT(src/Fl.cxx)
dnl FLTK library versions...
FL_MAJOR_VERSION=1
FL_MINOR_VERSION=1
FL_PATCH_VERSION=0
FL_RELEASE_VERSION=b9
FL_API_VERSION=${FL_MAJOR_VERSION}.${FL_MINOR_VERSION}
AC_SUBST(FL_MAJOR_VERSION)
AC_SUBST(FL_MINOR_VERSION)
AC_SUBST(FL_PATCH_VERSION)
AC_SUBST(FL_RELEASE_VERSION)
AC_SUBST(FL_API_VERSION)
dnl How do we make libraries?
AC_PROG_RANLIB
AC_PATH_PROG(AR, ar)
if test "$RANLIB" != ":"; then
LIBCOMMAND="$AR cr"
else
LIBCOMMAND="$AR crs"
fi
DSOCOMMAND="echo"
DSONAME=""
LINKFLTK="-lfltk"
LINKFLTKGL="-lfltk_gl"
GLDEMOS="gldemos"
LIBNAME="../lib/libfltk.a"
GLLIBNAME="../lib/libfltk_gl.a"
dnl Get the operating system and version number...
uname=`uname`
uversion=`uname -r | sed -e '1,$s/[[^0-9]]//g'`
if test $uname = IRIX64; then
uname="IRIX"
fi
dnl Clear debugging flags and only enable debugging if the user asks for
dnl it.
DEBUGFLAG=""
PICFLAG=0
CFLAGS="${CFLAGS:=}"
CXXFLAGS="${CXXFLAGS:=}"
case $uname in
CYGWIN*)
AC_ARG_ENABLE(cygwin, [ --enable-cygwin use the CygWin libraries [default=yes]],
[if test x$enable_cygwin = xno; then
CPPFLAGS="$CPPFLAGS -mno-cygwin"
CFLAGS="$CFLAGS -mno-cygwin"
CXXFLAGS="$CXXFLAGS -mno-cygwin"
fi])
;;
esac
AC_ARG_ENABLE(debug, [ --enable-debug turn on debugging [default=no]],
[if eval "test x$enable_debug = xyes"; then
DEBUGFLAG="-g "
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]],[
DSOLINK=""
AC_SUBST(DSOLINK)
if test x$enable_shared = xyes; then
PICFLAG=1
case $uname in
*BSD* | Darwin*)
DSONAME="libfltk.$FL_API_VERSION.dylib"
GLDSONAME="libfltk_gl.$FL_API_VERSION.dylib"
DSOCOMMAND="ld $DSOFLAGS -dylib /usr/lib/dylib1.o -lc"
if test "$libdir" != "/usr/lib"; then
DSOLINK="-Wl,-rpath,$libdir"
fi
;;
SunOS* | UNIX_S*)
DSONAME="libfltk.so.$FL_API_VERSION"
GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
DSOCOMMAND="\$(CXX) -h \$@ \$(LDLIBS) -G $DEBUGFLAG -o"
if test "$libdir" != "/usr/lib"; then
DSOLINK="-R$libdir"
fi
;;
HP-UX*)
DSONAME="libfltk.sl.$FL_API_VERSION"
GLDSONAME="libfltk_gl.sl.$FL_API_VERSION"
DSOCOMMAND="ld -b -z +h \$@ $DEBUGFLAG -o"
if test "$libdir" != "/usr/lib"; then
DSOLINK="-Wl,-rpath,$libdir"
fi
;;
IRIX* | OSF1*)
DSONAME="libfltk.so.$FL_API_VERSION"
GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
DSOCOMMAND="\$(CXX) -Wl,-soname,\$@ \$(LDLIBS) -shared $DEBUGFLAG -o"
if test "$libdir" != "/usr/lib" - a "$libdir" != "/usr/lib32"; then
DSOLINK="-Wl,-rpath,$libdir"
fi
;;
Linux*)
DSONAME="libfltk.so.$FL_API_VERSION"
GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
DSOCOMMAND="\$(CXX) -Wl,-soname,\$@ \$(LDLIBS) -shared -fPIC $DEBUGFLAG -o"
if test "$libdir" != "/usr/lib"; then
DSOLINK="-Wl,-rpath,$libdir"
fi
;;
AIX*)
DSONAME="libfltk_s.a"
GLDSONAME="libfltk_gl_s.a"
DSOCOMMAND="\$(CXX) -Wl,-bexpall,-bM:SRE,-bnoentry -o"
;;
CYGWIN*)
AC_MSG_WARN(Shared libraries are not supported under CygWin.)
;;
*)
AC_MSG_WARN(Shared libraries may not be supported. Trying -shared option with compiler.)
DSONAME="libfltk.so.$FL_API_VERSION"
GLDSONAME="libfltk_gl.so.$FL_API_VERSION"
DSOCOMMAND="\$(CXX) -Wl,-soname,\$@ \$(LDLIBS) -shared $DEBUGFLAG -o"
;;
esac
fi])
AC_ARG_ENABLE(threads, [ --enable-threads enable multi-threading support],,enable_threads=no)
AC_PROG_CC
AC_PROG_CXX
dnl AC_PROG_INSTALL
AC_PATH_PROG(NROFF,nroff)
if test "$NROFF" = ""; then
AC_PATH_PROG(GROFF,groff)
if test "$GROFF" = ""; then
NROFF="echo"
else
NROFF="$GROFF -T ascii"
fi
fi
AC_PATH_PROG(HTMLDOC,htmldoc)
AC_C_BIGENDIAN
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
if test $ac_cv_sizeof_int -eq 8; then
AC_DEFINE(U64,unsigned)
else
if test $ac_cv_sizeof_long -eq 8; then
AC_DEFINE(U64,unsigned long)
fi
fi
AC_HEADER_DIRENT
AC_CHECK_HEADER(sys/select.h,AC_DEFINE(HAVE_SYS_SELECT_H))
AC_CHECK_HEADER(sys/stdtypes.h,AC_DEFINE(HAVE_SYS_SELECT_H))
AC_CHECK_FUNC(scandir,
if test "$uname" = SunOS -o "$uname" = QNX; then
AC_MSG_WARN(Not using $uname scandir emulation function.)
else
AC_DEFINE(HAVE_SCANDIR)
fi)
AC_CHECK_FUNC(vsnprintf,
if test "$uname" = "HP-UX" -a "$uversion" = "1020"; then
AC_MSG_WARN(Not using built-in vsnprintf function because you are running HP-UX 10.20.)
else
AC_DEFINE(HAVE_VSNPRINTF)
fi)
AC_CHECK_FUNC(snprintf,
if test "$uname" = "HP-UX" -a "$uversion" = "1020"; then
AC_MSG_WARN(Not using built-in snprintf function because you are running HP-UX 10.20.)
else
AC_DEFINE(HAVE_SNPRINTF)
fi)
AC_CHECK_FUNCS(vsprintf)
AC_CHECK_HEADER(strings.h, AC_DEFINE(HAVE_STRINGS_H))
AC_CHECK_FUNCS(strcasecmp)
dnl FLTK library uses math library functions...
AC_SEARCH_LIBS(pow, m)
dnl Check for image libraries...
SAVELIBS="$LIBS"
IMAGELIBS=""
AC_SUBST(IMAGELIBS)
AC_CHECK_HEADER(jpeglib.h,
AC_CHECK_LIB(jpeg, jpeg_destroy_decompress,
AC_DEFINE(HAVE_LIBJPEG)
IMAGELIBS="$IMAGELIBS -ljpeg"))
AC_CHECK_HEADER(zlib.h,
AC_CHECK_LIB(z, gzopen,
AC_DEFINE(HAVE_LIBZ)
IMAGELIBS="$IMAGELIBS -lz"
LIBS="$LIBS -lz"))
AC_CHECK_HEADER(png.h,
AC_CHECK_LIB(png, png_read_rows,
AC_DEFINE(HAVE_LIBPNG)
IMAGELIBS="-lpng $IMAGELIBS"
LIBS="-lpng $LIBS"
AC_CHECK_FUNCS(png_get_valid png_set_tRNS_to_alpha png_read_destroy)))
dnl Restore original LIBS settings...
LIBS="$SAVELIBS"
dnl See if we need a .exe extension on executables...
AC_EXEEXT
dnl Check for standard graphics API and OpenGL...
HLINKS=
dnl some environments need postprocessing (Darwin, MacOS)
POSTBUILD=:
dnl Check for pthreads for multi-threaded apps...
have_pthread=no
if test x"$enable_threads" = xyes; then
AC_CHECK_HEADER(pthread.h, AC_DEFINE(HAVE_PTHREAD_H))
AC_SEARCH_LIBS(pthread_create, pthread)
if test x"$ac_cv_search_pthread_create" = xyes -a x$ac_cv_header_pthread_h = xyes; then
have_pthread=yes
else
dnl *BSD uses -pthread option...
AC_MSG_CHECKING([for pthread_create using -pthread])
SAVELIBS="$LIBS"
LIBS="-pthread $LIBS"
AC_TRY_LINK([#include <pthread.h>],
[pthread_create(0, 0, 0, 0);],
LIBS="-pthread $SAVELIBS"
have_pthread=yes,
LIBS="$SAVELIBS")
AC_MSG_RESULT([$have_pthread])
fi
fi
THREADS=""
case $uname in
CYGWIN*)
dnl Cygwin environment...
LIBS="$LIBS -mwindows -lwsock32"
CFLAGS="$CFLAGS -mwindows -DWIN32"
CXXFLAGS="$CXXFLAGS -mwindows -DWIN32"
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 $GLLIB")
else
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
fi
if test "x$ac_cv_search_pthread_create" != xno -a x"$enable_threads" = xyes; then
AC_DEFINE(HAVE_PTHREAD)
THREADS="threads.exe"
fi
# Don't make symlinks since Windows is not case sensitive.
HLINKS="#"
;;
Darwin*)
# MacOS X uses Carbon for graphics...
LIBS="$LIBS -framework Carbon -framework ApplicationServices"
if test x$enable_gl != xno; then
AC_DEFINE(HAVE_GL)
AC_DEFINE(HAVE_GL_GLU_H)
GLLIB="-framework AGL -framework OpenGL"
else
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
fi
# Don't make symlinks because HFS+ is not case sensitive...
HLINKS="#"
# Add a postbuild step after linking applications
POSTBUILD="/Developer/Tools/Rez -t APPL -o"
;;
*)
# All others are UNIX/X11...
if test $have_pthread = yes; then
AC_DEFINE(HAVE_PTHREAD)
THREADS="threads"
fi
dnl Check for X11...
AC_PATH_XTRA
if test x$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 -lXext -lX11 $X_EXTRA_LIBS"
CFLAGS="$CFLAGS$X_CFLAGS"
CXXFLAGS="$CXXFLAGS$X_CFLAGS"
LDFLAGS="$X_LIBS $LDFLAGS"
if test "x$x_includes" != x; then
ac_cpp="$ac_cpp -I$x_includes"
fi
dnl Check for OpenGL unless disabled...
GLLIB=
if test x$enable_gl != xno; then
AC_SEARCH_LIBS(dlopen, dl)
AC_CHECK_HEADER(GL/gl.h,
AC_CHECK_LIB(GL, glXMakeCurrent, AC_DEFINE(HAVE_GL) GLLIB="-lGL", \
AC_CHECK_LIB(MesaGL,glXMakeCurrent, AC_DEFINE(HAVE_GL) GLLIB=" -lMesaGL",,\
-lm), \
-lm)
)
AC_CHECK_HEADER(GL/glu.h,
AC_DEFINE(HAVE_GL_GLU_H)
if test x$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 = xno -a x$ac_cv_lib_MesaGL_glXMakeCurrent = xno; then
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
fi
else
LINKFLTKGL=""
GLLIBNAME=""
GLDSONAME=""
GLDEMOS=""
fi
dnl Check for the Xdbe extension...
AC_CHECK_HEADER(X11/extensions/Xdbe.h, \
if test "$uname" != "SunOS"; then
AC_DEFINE(HAVE_XDBE)
fi)
dnl Check for overlay visuals...
AC_CACHE_CHECK("for X overlay visuals", ac_cv_have_overlay,
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)
esac
AC_SUBST(HLINKS)
AC_SUBST(GLDEMOS)
AC_SUBST(GLLIB)
AC_SUBST(POSTBUILD)
AC_SUBST(THREADS)
dnl Figure out the appropriate formatted man page extension...
case "$uname" in
*BSD* | Darwin*)
# *BSD
CAT1EXT=0
CAT3EXT=0
;;
IRIX*)
# SGI IRIX
CAT1EXT=z
CAT3EXT=z
;;
*)
# All others
CAT1EXT=1
CAT3EXT=3
;;
esac
AC_SUBST(CAT1EXT)
AC_SUBST(CAT3EXT)
dnl Fix "mandir" variable...
if test "$mandir" = "\${prefix}/man" -a "$prefix" = "/usr"; then
case "$uname" 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
if test "$uname" = "IRIX" -a $uversion -ge 62 -a "$libdir" = "\${exec_prefix}/lib" -a "$exec_prefix" = "\${prefix}" -a "$prefix" = "/usr"; then
libdir="/usr/lib32"
fi
dnl Add warnings to compiler switches:
dnl do this last so messing with switches does not break tests
MAKEDEPEND="\$(CXX) -M"
if test -n "$GXX"; then
# Starting with GCC 3.0, you must link C++ programs against either
# libstdc++ (shared by default), or libsupc++ (always static). If
# you care about binary portability between Linux distributions,
# you need to either 1) build your own GCC with static C++ libraries
# or 2) link using gcc and libsupc++. We choose the latter since
# FLTK doesn't (currently) use any of the stdc++ library.
#
# Also, GCC 3.0.x still has problems compiling some code. You may
# or may not have success with it. USE 3.0.x WITH EXTREME CAUTION!
#
# Previous versions of GCC do not have the reliance on the stdc++
# or g++ libraries, so the extra supc++ library is not needed.
case "`$CXX --version`" in
3*)
AC_MSG_WARN(GCC 3.0.x is known to produce incorrect code - use with caution!)
LIBS="$LIBS -lsupc++"
;;
3.1*)
LIBS="$LIBS -lsupc++"
;;
esac
CXX="$CC"
CFLAGS="-Wall $CFLAGS"
CXXFLAGS="-Wall $CXXFLAGS"
if test -z "$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.
#
# "-O2" seems to be the best compromise between speed and
# code size. "-O3" and higher seem to make no effective
# different in the speed of the code, but does bloat the
# library 10+%.
#
CFLAGS="-O2 $CFLAGS"
CXXFLAGS="-O2 $CXXFLAGS"
fi
if test $PICFLAG = 1; then
CFLAGS="-fPIC $CFLAGS"
CXXFLAGS="-fPIC $CXXFLAGS"
fi
# See if GCC supports -fno-exceptions...
AC_MSG_CHECKING(if GCC supports -fno-exceptions)
OLDCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fno-exceptions"
AC_TRY_COMPILE(,,
CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_RESULT(yes),
CFLAGS="$OLDCFLAGS"
AC_MSG_RESULT(no))
CFLAGS="$OLDCFLAGS"
# See if we are running Solaris; if so, try the -fpermissive option...
if test "$uname" = SunOS; then
AC_MSG_CHECKING(if GCC supports -fpermissive)
OLDCFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fpermissive"
AC_TRY_COMPILE(,,
CXXFLAGS="$CXXFLAGS -fpermissive"
AC_MSG_RESULT(yes),
CFLAGS="$OLDCFLAGS"
AC_MSG_RESULT(no))
fi
else
case "$uname" 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
CFLAGS="-fullwarn $CFLAGS"
CXXFLAGS="-fullwarn $CXXFLAGS"
else
CXXFLAGS="+w +pp $CXXFLAGS"
fi
if test -z "$DEBUGFLAG"; then
CFLAGS="-O2 $CFLAGS"
CXXFLAGS="-O2 $CXXFLAGS"
fi
;;
HP-UX*)
# Running HP-UX; these options should work for the HP compilers.
if test -z "$DEBUGFLAG"; then
CFLAGS="+O2 $CFLAGS"
CXXFLAGS="+O2 +W336,501,736,740,749,829 $CXXFLAGS"
fi
CFLAGS="+DAportable $CFLAGS"
CXXFLAGS="+DAportable $CXXFLAGS"
;;
SunOS*)
# Solaris
if test -z "$DEBUGFLAG"; then
CFLAGS="-xO3"
CXXFLAGS="-xO3"
fi
if test $PICFLAG = 1; then
CFLAGS="-KPIC $CFLAGS"
CXXFLAGS="-PIC $CXXFLAGS"
fi
;;
AIX*)
if test -z "$DEBUGFLAG"; then
CFLAGS="-O2 $CFLAGS"
CXXFLAGS="-O2 $CXXFLAGS"
fi
AC_MSG_WARN(The AIX C and C++ compilers are known not to correctly compile the FLTK library.)
;;
*)
# Running some other operating system; inform the user they
# should contribute the necessary options to fltk-bugs@fltk.org...
AC_MSG_WARN(Building FLTK with default compiler optimizations)
AC_MSG_WARN(Contact fltk-bugs@fltk.org with uname and compiler options.)
;;
esac
fi
CFLAGS="$DEBUGFLAG $CFLAGS"
CXXFLAGS="$DEBUGFLAG $CXXFLAGS"
AC_SUBST(DSOCOMMAND)
AC_SUBST(DSONAME)
AC_SUBST(GLDSONAME)
AC_SUBST(GLLIBNAME)
AC_SUBST(LIBCOMMAND)
AC_SUBST(LIBNAME)
AC_SUBST(LINKFLTKGL)
AC_SUBST(LINKFLTK)
AC_SUBST(MAKEDEPEND)
if test x$prefix = xNONE; then
AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "/usr/local/share/doc/fltk")
else
AC_DEFINE_UNQUOTED(FLTK_DOCDIR, "$prefix/share/doc/fltk")
fi
AC_CONFIG_HEADER(config.h:configh.in)
AC_OUTPUT(makeinclude fltk.list fltk-config FL/Makefile)
chmod +x fltk-config
dnl
dnl End of "$Id: configure.in,v 1.33.2.31.2.47 2002/01/07 20:40:02 easysw Exp $".
dnl