1 # $NetBSD: configure.ac,v 1.8 2007/10/14 20:25:35 apb Exp $
3 # Autoconf definition file for make.
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.)
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.
25 AC_INIT([make], [noversion], [bin-bug-people@NetBSD.org])
26 AC_CONFIG_FILES(buildmake.sh)
28 AC_PATH_PROG(BSHELL, sh)
29 if test x"$BSHELL" = x; then
30 AC_MSG_ERROR([sh must be somewhere on \$PATH, or BSHELL must be defined])
32 AC_DEFINE_UNQUOTED(DEFSHELL_CUSTOM, "${BSHELL}")
34 # Make sure we have POSIX regex ability.
35 AC_CHECK_HEADER(regex.h,, AC_MSG_ERROR([POSIX regex.h is required]))
37 # If we don't have <poll.h>, we need to use select(2).
38 AC_CHECK_HEADER(poll.h,, AC_DEFINE(USE_SELECT))
40 # regcomp() and regexec() are also names of functions in the old V8
41 # regexp package. To avoid them, we need to find out who has regfree().
43 dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
44 dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
45 AC_CHECK_LIB(regex, regfree)
46 AC_SEARCH_LIBS(regfree, rx posix)
48 AC_CHECK_FUNCS(setenv strdup strerror strftime vsnprintf)