configure.ac revision 1.8 
1#	$NetBSD: configure.ac,v 1.8 2007/10/14 20:25:35 apb Exp $
2#
3# Autoconf definition file for make.
4#
5# When you edit configure.ac:
6# 0. Create the tools version of autoconf:
7#        cd ${SRCDIR} && build.sh -V MKMAINTAINERTOOLS=yes tools
8#    (This might not work if you try it after editing configure.ac.)
9# 1. edit configure.ac
10# 2. Regenerate "configure" from "configure.ac":
11#        cd ${SRCDIR}/tools/make && \
12#        ${TOOLDIR}/bin/nbmake-${MACHINE} -f Makefile.regen
13#    (Please don't use a non-tools version of autoconf).
14# 3. Test that nbmake still builds
15#        mv ${TOOLDIR}/nbmake ${TOOLDIR}/bin/nbmake.bak
16#        cd ${SRCDIR} && build.sh makewrapper
17# 4. cvs commit files that you edited.
18# 5. Regen again, to pick up changed RCS IDs from the above commit:
19#        cd ${SRCDIR}/tools/make && \
20#        ${TOOLDIR}/bin/nbmake-${MACHINE} -f Makefile.regen
21# 6. cvs commit files that were generated.
22#
23#
24
25AC_INIT([make], [noversion], [bin-bug-people@NetBSD.org])
26AC_CONFIG_FILES(buildmake.sh)
27
28AC_PATH_PROG(BSHELL, sh)
29if test x"$BSHELL" = x; then
30	AC_MSG_ERROR([sh must be somewhere on \$PATH])
31fi
32# Make wants to get the directory name and the basename
33# for the default shell in two separate variables.
34nb_path_defshelldir="${BSHELL%/*}"
35nb_basename_defshell="${BSHELL##*/}"
36AC_DEFINE_UNQUOTED(_PATH_DEFSHELLDIR, "$nb_path_defshelldir")
37AC_DEFINE_UNQUOTED(_BASENAME_DEFSHELL, "$nb_basename_defshell")
38
39# Make sure we have POSIX regex ability.
40AC_CHECK_HEADER(regex.h,, AC_MSG_ERROR([POSIX regex.h is required]))
41
42# If we don't have <poll.h>, we need to use select(2).
43AC_CHECK_HEADER(poll.h,, AC_DEFINE(USE_SELECT))
44
45# regcomp() and regexec() are also names of functions in the old V8
46# regexp package.  To avoid them, we need to find out who has regfree().
47
48dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
49dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
50AC_CHECK_LIB(regex, regfree)
51AC_SEARCH_LIBS(regfree, rx posix)
52
53AC_CHECK_FUNCS(setenv strdup strerror strftime vsnprintf)
54
55AC_OUTPUT
56