commit 2f90eb01f916ad69d90c24933ae80cdf465ef22e
from: Omar Polo <op@omarpolo.com>
date: Sun Jan 09 16:54:24 2022 UTC

add the configure script

commit - 0d6fb46a3481c0493884d5b916be3ccccd896cf7
commit + 2f90eb01f916ad69d90c24933ae80cdf465ef22e
blob - /dev/null
blob + 67bb54f06de86150fa77bc6a943c7d358e442674 (mode 644)
--- /dev/null
+++ configure.ac
@@ -0,0 +1,152 @@
+AC_INIT([kamid-portable], [0.1], [kamid@omarpolo.com], [],
+	[https://kamid.omarpolo.com])
+AC_CONFIG_AUX_DIR(etc)
+AC_CONFIG_LIBOBJ_DIR(compat)
+AM_INIT_AUTOMAKE([foreign subdir-objects])
+
+KAMID_RELEASE=No
+
+AC_DEFINE_UNQUOTED(VERSION, "$VERSION")
+AC_SUBST(VERSION)
+AC_SUBST(KAMID_RELEASE)
+
+AC_CANONICAL_HOST
+
+# When CFLAGS isn't set at this stage and gcc is detected by the macro below,
+# autoconf will automatically use CFLAGS="-O2 -g". Prevent that by using an
+# empty default.
+: ${CFLAGS=""}
+
+# Save user CPPFLAGS, CFLAGS and LDFLAGS. We need to change them because
+# AC_CHECK_HEADER doesn't give us any other way to update the include
+# paths. But for Makefile.am we want to use AM_CPPFLAGS and friends.
+SAVED_CFLAGS="$CFLAGS"
+SAVED_CPPFLAGS="$CPPFLAGS"
+SAVED_LDFLAGS="$LDFLAGS"
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_CPP
+AC_PROG_INSTALL
+AC_PROG_LN_S
+AC_PROG_MAKE_SET
+AC_PROG_YACC
+PKG_PROG_PKG_CONFIG
+AC_USE_SYSTEM_EXTENSIONS
+
+# Some functions can be in libbsd.  Thanks to lldpb for the inspiration :)
+AC_ARG_WITH([libbsd],
+  AS_HELP_STRING([--with-libbsd], [Use libbsd @<:@default=auto@:>@]),
+  [],
+  [with_libbsd=auto])
+if test x"$with_libbsd" != x"no"; then
+  PKG_CHECK_MODULES([libbsd], [libbsd-overlay libbsd-ctor], [
+    _save_AM_CFLAGS="$AM_CFLAGS"
+    _save_LIBS="$LIBS"
+    AM_CFLAGS="$AM_CFLAGS $libbsd_CFLAGS"
+    LIBS="$LIBS $libbsd_LIBS"
+  ], [
+    if test x"$with_libbsd" = x"yes"; then
+       AC_MSG_FAILURE([*** no libbsd support found])
+    fi
+    with_libbsd=no
+  ])
+fi
+
+# Checks for library functions.
+AC_SEARCH_LIBS([arc4random], [],
+	[AC_DEFINE([HAVE_ARC4RANDOM], 1, [arc4random])],
+	[AC_DEFINE([HAVE_ARC4RANDOM], 0, [arc4random])])
+
+AC_REPLACE_FUNCS([
+	asprintf	\
+	err		\
+	freezero	\
+	getdtablecount	\
+	getdtablesize	\
+	getprogname	\
+	memmem		\
+	recallocarray	\
+	setproctitle	\
+	setprogname	\
+	strlcat		\
+	strlcpy		\
+	strsep		\
+	strtonum	\
+	vis		\
+])
+
+AC_MSG_CHECKING([for sys/queue.h with TAILQ_FOREACH_SAFE and STAILQ_ENTRY])
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([
+#include <sys/queue.h>
+#include <stddef.h>
+], [
+	TAILQ_HEAD(tailhead, entry) head;
+	struct entry {
+		TAILQ_ENTRY(entry) entries;
+	} *np, *nt;
+	TAILQ_INIT(&head);
+	TAILQ_FOREACH_SAFE(np, &head, entries, nt) {
+		/* nop */ ;
+	}
+
+	STAILQ_HEAD(listhead, qentry) qhead = STAILQ_HEAD_INITIALIZER(qhead);
+	struct qentry {
+		STAILQ_ENTRY(qentry) entries;
+	} foo;
+
+	return 0;
+])], [
+	AC_MSG_RESULT(yes)
+	AC_DEFINE([HAVE_QUEUE_H], 1, [QUEUE_H])
+], AC_MSG_RESULT(no))
+
+AC_CHECK_HEADERS([sys/tree.h])
+
+AC_CHECK_DECL(PR_SET_NAME, AC_DEFINE([HAVE_PR_SET_NAME], 1, [pr_set_name]), [],
+	[[#include <sys/prctl.h>]])
+
+AC_CHECK_LIB([crypto], [RAND_add], [], [
+	AC_MSG_ERROR([requires openssl])
+])
+
+AC_CHECK_LIB(tls, tls_init, [], [
+	AC_MSG_ERROR([requires libtls])
+])
+
+AS_CASE([$host_os],
+	[*openbsd*], [AC_CHECK_LIB([event], [event_init], [],
+			[AC_MSG_ERROR([requires libevent])])],
+	[PKG_CHECK_MODULES([libevent2], [libevent_core >= 2],
+		[
+			AC_DEFINE([HAVE_EVENT2], 1, [1 if using event2])
+			AM_CFLAGS="$libevent2_CFLAGS $AM_CFLAGS"
+			LIBS="$libevent2_LIBS $LIBS"
+		], [AC_MSG_ERROR([requires libevent])])])
+
+AC_CHECK_LIB(util, imsg_init, [], [
+	AC_LIBOBJ(fmt_scaled)
+	AC_LIBOBJ(imsg)
+	AC_LIBOBJ(imsg-buffer)
+	AC_LIBOBJ(ohash)
+])
+
+# Save our CFLAGS/CPPFLAGS/LDFLAGS for the Makefile and restore the old user
+# variables.
+AC_SUBST(AM_CPPFLAGS)
+CPPFLAGS="$SAVED_CPPFLAGS"
+AC_SUBST(AM_CFLAGS)
+CFLAGS="$SAVED_CFLAGS"
+AC_SUBST(AM_LDFLAGS)
+LDFLAGS="$SAVED_LDFLAGS"
+
+AC_CONFIG_FILES([
+	Makefile
+	kamictl/Makefile
+	kamid/Makefile
+	kamiftp/Makefile
+	kamirepl/Makefile
+	ninepscript/Makefile
+])
+
+AC_OUTPUT