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[external/binutils.git] / ld / configure.in
1 dnl Process this file with autoconf to produce a configure script
2 dnl
3 AC_PREREG(2.5)
4 AC_INIT(ldmain.c)
5
6 AC_CANONICAL_SYSTEM
7
8 AM_INIT_AUTOMAKE(ld, 2.8.2)
9
10 AM_PROG_LIBTOOL
11
12 AC_ARG_ENABLE(targets,
13 [  --enable-targets        alternative target configurations],
14 [case "${enableval}" in
15   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
16             ;;
17   no)       enable_targets= ;;
18   *)        enable_targets=$enableval ;;
19 esac])dnl
20 AC_ARG_ENABLE(64-bit-bfd,
21 [  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
22 [case "${enableval}" in
23   yes)  want64=true  ;;
24   no)   want64=false ;;
25   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
26 esac],[want64=false])dnl
27
28 AM_CONFIG_HEADER(config.h:config.in)
29
30 if test -z "$target" ; then
31     AC_MSG_ERROR(Unrecognized target system type; please check config.sub.)
32 fi
33 if test -z "$host" ; then
34     AC_MSG_ERROR(Unrecognized host system type; please check config.sub.)
35 fi
36
37 # host-specific stuff:
38
39 AC_PROG_CC
40 AM_PROG_INSTALL
41 AM_CYGWIN32
42 AM_EXEEXT
43
44 AC_PROG_YACC
45 AC_PROG_LEX
46 AC_DECL_YYTEXT
47
48 AM_MAINTAINER_MODE
49
50 . ${srcdir}/configure.host
51
52 AC_SUBST(HDEFINES)
53 AC_SUBST(HOSTING_CRT0)
54 AC_SUBST(HOSTING_LIBS)
55 AC_SUBST(NATIVE_LIB_DIRS)
56
57 AC_CHECK_HEADERS(string.h strings.h stdlib.h unistd.h)
58 AC_CHECK_FUNCS(sbrk)
59 AC_HEADER_DIRENT
60
61 BFD_BINARY_FOPEN
62
63 BFD_NEED_DECLARATION(strstr)
64 BFD_NEED_DECLARATION(free)
65 BFD_NEED_DECLARATION(sbrk)
66 BFD_NEED_DECLARATION(getenv)
67
68 # target-specific stuff:
69
70 all_targets=
71 EMUL=
72 all_emuls=
73 TDIRS=
74
75 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
76 do
77   if test "$targ_alias" = "all"; then
78     all_targets=true
79   else
80     # Canonicalize the secondary target names.
81     result=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $targ_alias 2>/dev/null`
82     if test -n "$result"; then
83         targ=$result
84     else
85         targ=$targ_alias
86     fi
87
88     . ${srcdir}/configure.tgt
89
90     if test "$targ" = "$target"; then
91       EMUL=$targ_emul
92     fi
93
94     for i in $targ_emul $targ_extra_emuls; do
95         case " $all_emuls " in
96         *" e${i}.o "*) ;;
97         *)
98           all_emuls="$all_emuls e${i}.o"
99           eval result=\$tdir_$i
100           test -z "$result" && result=$targ_alias
101           TDIRS="$TDIRS\\
102 tdir_$i=$result"
103           ;;
104         esac
105     done
106   fi
107 done
108
109 AC_SUBST(EMUL)
110 AC_SUBST(TDIRS)
111
112 dnl FIXME: We will build a 64 bit BFD for a 64 bit host or a 64 bit
113 dnl target, and in those cases we should also build the 64 bit
114 dnl emulations.
115 if test x${all_targets} = xtrue; then
116   if test x${want64} = xtrue; then
117     EMULATION_OFILES='$(ALL_EMULATIONS) $(ALL_64_EMULATIONS)'
118   else
119     EMULATION_OFILES='$(ALL_EMULATIONS)'
120   fi
121 else
122   EMULATION_OFILES=$all_emuls
123 fi
124 AC_SUBST(EMULATION_OFILES)
125
126 AC_OUTPUT(Makefile)