configure.ac revision 1.10 
1#	$NetBSD: configure.ac,v 1.10 2023/07/20 15:12:36 lukem 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"$BSHELL" = x; then
30    AC_MSG_ERROR([sh must be somewhere on \$PATH, or BSHELL must be defined])
31fi
32AC_DEFINE_UNQUOTED([DEFSHELL_CUSTOM], "${BSHELL}")
33
34# Make sure we have POSIX regex ability.
35AC_CHECK_HEADER([regex.h],, AC_MSG_ERROR([POSIX regex.h is required]))
36
37# If we don't have <poll.h>, we need to use select(2).
38AC_CHECK_HEADER([poll.h],, AC_DEFINE(USE_SELECT))
39
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().
42
43dnl # Cygwin: We *MUST* look at -lregex *before* the "no libs" condition.
44dnl # Thus AC_CHECK_LIB(regex...) comes first, and AC_SEARCHLIBS next.
45AC_CHECK_LIB([regex], [regfree])
46AC_SEARCH_LIBS([regfree], [rx posix])
47
48AC_CHECK_FUNCS([setenv strdup strerror strftime vsnprintf])
49
50AC_OUTPUT()
51
52dnl Display results
53dnl
54AC_MSG_NOTICE([========== configure results for make ===========])
55m4_foreach_w([NB_VAR], [CC CFLAGS CPPFLAGS DEFS LDFLAGS LIBS], [dnl
56AC_MSG_NOTICE(m4_format([%-32s],NB_VAR)[$NB_VAR])
57])
58AC_MSG_NOTICE([================================================])
59