xref: /openbsd/gnu/lib/libreadline/configure.in (revision 15b117ea) 
1dnl
2dnl Configure script for readline library
3dnl
4dnl report bugs to chet@po.cwru.edu
5dnl
6dnl Process this file with autoconf to produce a configure script.
7AC_REVISION([for Readline 4.3, version 2.45, from autoconf version] AC_ACVERSION)
8
9AC_INIT(readline, 4.3, bug-readline@gnu.org)
10
11dnl make sure we are using a recent autoconf version
12AC_PREREQ(2.50)
13
14AC_CONFIG_SRCDIR(readline.h)
15AC_CONFIG_AUX_DIR(./support)
16AC_CONFIG_HEADERS(config.h)
17
18dnl update the value of RL_READLINE_VERSION in readline.h when this changes
19LIBVERSION=4.3
20
21AC_CANONICAL_HOST
22
23dnl configure defaults
24opt_curses=no
25
26dnl arguments to configure
27AC_ARG_WITH(curses, AC_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
28
29if test "$opt_curses" = "yes"; then
30	prefer_curses=yes
31fi
32
33dnl option parsing for optional features
34opt_static_libs=yes
35opt_shared_libs=yes
36
37AC_ARG_ENABLE(shared, AC_HELP_STRING([--enable-shared], [build shared libraries [[default=YES]]]), opt_shared_libs=$enableval)
38AC_ARG_ENABLE(static, AC_HELP_STRING([--enable-static], [build static libraries [[default=YES]]]), opt_static_libs=$enableval)
39
40echo ""
41echo "Beginning configuration for readline-$LIBVERSION for ${host_cpu}-${host_vendor}-${host_os}"
42echo ""
43
44# We want these before the checks, so the checks can modify their values.
45test -z "$CFLAGS" && CFLAGS=-g auto_cflags=1
46
47AC_PROG_MAKE_SET
48AC_PROG_CC
49dnl AC_AIX
50AC_MINIX
51
52# If we're using gcc and the user hasn't specified CFLAGS, add -O to CFLAGS.
53test -n "$GCC" && test -n "$auto_cflags" && CFLAGS="$CFLAGS -O"
54
55AC_PROG_GCC_TRADITIONAL
56AC_PROG_INSTALL
57AC_CHECK_PROG(AR, ar, , ar)
58dnl Set default for ARFLAGS, since autoconf does not have a macro for it.
59dnl This allows people to set it when running configure or make
60test -n "$ARFLAGS" || ARFLAGS="cr"
61AC_PROG_RANLIB
62
63MAKE_SHELL=/bin/sh
64AC_SUBST(MAKE_SHELL)
65
66AC_C_CONST
67AC_C_PROTOTYPES
68AC_C_CHAR_UNSIGNED
69
70AC_TYPE_SIGNAL
71
72AC_TYPE_SIZE_T
73AC_CHECK_TYPE(ssize_t, int)
74
75AC_HEADER_STAT
76AC_HEADER_DIRENT
77
78AC_CHECK_FUNCS(lstat memmove putenv select setenv setlocale \
79		strcasecmp strpbrk tcgetattr vsnprintf isascii isxdigit)
80
81AC_FUNC_STRCOLL
82
83AC_CHECK_HEADERS(unistd.h stdlib.h varargs.h stdarg.h string.h strings.h \
84		limits.h sys/ptem.h sys/pte.h sys/stream.h sys/select.h \
85		termcap.h termios.h termio.h sys/file.h locale.h memory.h )
86
87BASH_SYS_SIGNAL_VINTAGE
88BASH_SYS_REINSTALL_SIGHANDLERS
89
90BASH_FUNC_POSIX_SETJMP
91BASH_FUNC_LSTAT
92BASH_FUNC_STRCOLL
93
94BASH_CHECK_GETPW_FUNCS
95
96AC_HEADER_TIOCGWINSZ
97
98BASH_TYPE_SIGHANDLER
99BASH_HAVE_TIOCSTAT
100BASH_HAVE_FIONREAD
101BASH_CHECK_SPEED_T
102BASH_STRUCT_WINSIZE
103BASH_STRUCT_DIRENT_D_INO
104BASH_STRUCT_DIRENT_D_FILENO
105
106dnl yuck
107case "$host_os" in
108aix*)   prefer_curses=yes ;;
109esac
110BASH_CHECK_LIB_TERMCAP
111if test "$TERMCAP_LIB" = "./lib/termcap/libtermcap.a"; then
112	if test "$prefer_curses" = yes; then
113		TERMCAP_LIB=-lcurses
114	else
115		TERMCAP_LIB=-ltermcap	#default
116	fi
117fi
118
119BASH_CHECK_MULTIBYTE
120
121case "$host_cpu" in
122*cray*)	LOCAL_CFLAGS=-DCRAY ;;
123*s390*) LOCAL_CFLAGS=-fsigned-char ;;
124esac
125
126case "$host_os" in
127isc*)	LOCAL_CFLAGS=-Disc386 ;;
128esac
129
130# shared library configuration section
131#
132# Shared object configuration section.  These values are generated by
133# ${srcdir}/support/shobj-conf
134#
135if test -f ${srcdir}/support/shobj-conf; then
136        AC_MSG_CHECKING(configuration for building shared libraries)
137        eval `${CONFIG_SHELL-/bin/sh} ${srcdir}/support/shobj-conf -C "${CC}" -c ${host_cpu} -o ${host_os} -v ${host_vendor}`
138        AC_SUBST(SHOBJ_CC)
139        AC_SUBST(SHOBJ_CFLAGS)
140        AC_SUBST(SHOBJ_LD)
141        AC_SUBST(SHOBJ_LDFLAGS)
142	AC_SUBST(SHOBJ_XLDFLAGS)
143        AC_SUBST(SHOBJ_LIBS)
144        AC_SUBST(SHOBJ_STATUS)
145	AC_SUBST(SHLIB_STATUS)
146	AC_SUBST(SHLIB_XLDFLAGS)
147	AC_SUBST(SHLIB_LIBSUFF)
148	AC_SUBST(SHLIB_LIBVERSION)
149	AC_SUBST(SHLIB_LIBS)
150        AC_MSG_RESULT($SHLIB_STATUS)
151
152	# SHLIB_STATUS is either `supported' or `unsupported'.  If it's
153	# `unsupported', turn off any default shared library building
154	if test "$SHLIB_STATUS" = 'unsupported'; then
155		opt_shared_libs=no
156	fi
157
158	# shared library versioning
159	# quoted for m4 so I can use character classes
160	SHLIB_MAJOR=[`expr "$LIBVERSION" : '\([0-9]\)\..*'`]
161	SHLIB_MINOR=[`expr "$LIBVERSION" : '[0-9]\.\([0-9]\).*'`]
162	AC_SUBST(SHLIB_MAJOR)
163	AC_SUBST(SHLIB_MINOR)
164fi
165
166if test "$opt_static_libs" = "yes"; then
167	STATIC_TARGET=static
168	STATIC_INSTALL_TARGET=install-static
169fi
170if test "$opt_shared_libs" = "yes"; then
171	SHARED_TARGET=shared
172	SHARED_INSTALL_TARGET=install-shared
173fi
174
175AC_SUBST(STATIC_TARGET)
176AC_SUBST(SHARED_TARGET)
177AC_SUBST(STATIC_INSTALL_TARGET)
178AC_SUBST(SHARED_INSTALL_TARGET)
179
180case "$host_os" in
181msdosdjgpp*)	BUILD_DIR=`pwd.exe` ;;	# to prevent //d/path/file
182*)		BUILD_DIR=`pwd` ;;
183esac
184
185AC_SUBST(BUILD_DIR)
186
187AC_SUBST(CFLAGS)
188AC_SUBST(LOCAL_CFLAGS)
189AC_SUBST(LOCAL_LDFLAGS)
190AC_SUBST(LOCAL_DEFS)
191
192AC_SUBST(AR)
193AC_SUBST(ARFLAGS)
194
195AC_SUBST(host_cpu)
196AC_SUBST(host_os)
197
198AC_SUBST(LIBVERSION)
199
200AC_SUBST(TERMCAP_LIB)
201
202AC_OUTPUT([Makefile doc/Makefile examples/Makefile shlib/Makefile],
203[
204# Makefile uses this timestamp file to record whether config.h is up to date.
205echo > stamp-h
206])
207