From f3ae7e0a6749bdb1aecafe1dac338ab6d1e95c98 Mon Sep 17 00:00:00 2001 From: Guus Sliepen Date: Tue, 3 Oct 2017 21:07:09 +0200 Subject: [PATCH] Give absolute path for #include to AC_CHECK_HEADERS(). Taken from Etienne Dechamp's patch to support VPATH builds for tinc 1.1. --- configure.ac | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/configure.ac b/configure.ac index 04487078..c37cb28b 100644 --- a/configure.ac +++ b/configure.ac @@ -180,18 +180,16 @@ dnl Checks for libraries. dnl Checks for header files. dnl We do this in multiple stages, because unlike Linux all the other operating systems really suck and don't include their own dependencies. -save_CPPFLAGS="$CPPFLAGS" -CPPFLAGS="$CPPFLAGS -I${srcdir}" AC_HEADER_STDC AC_CHECK_HEADERS([stdbool.h syslog.h sys/file.h sys/ioctl.h sys/mman.h sys/param.h sys/resource.h sys/socket.h sys/time.h time.h sys/uio.h sys/wait.h netdb.h arpa/inet.h arpa/nameser.h dirent.h getopt.h]) AC_CHECK_HEADERS([net/if.h net/if_types.h linux/if_tun.h net/if_tun.h net/if_utun.h net/tun/if_tun.h net/if_tap.h net/tap/if_tap.h net/ethernet.h net/if_arp.h netinet/in_systm.h netinet/in.h netinet/in6.h netpacket/packet.h], - [], [], [#include "src/have.h"] + [], [], [#include "$srcdir/src/have.h"] ) AC_CHECK_HEADERS([netinet/if_ether.h netinet/ip.h netinet/ip6.h resolv.h], - [], [], [#include "src/have.h"] + [], [], [#include "$srcdir/src/have.h"] ) AC_CHECK_HEADERS([netinet/tcp.h netinet/ip_icmp.h netinet/icmp6.h], - [], [], [#include "src/have.h"] + [], [], [#include "$srcdir/src/have.h"] ) dnl Checks for typedefs, structures, and compiler characteristics. @@ -205,13 +203,13 @@ AC_STRUCT_TM tinc_ATTRIBUTE(__malloc__) AC_CHECK_TYPES([socklen_t, struct ether_header, struct arphdr, struct ether_arp, struct in_addr, struct addrinfo, struct ip, struct icmp, struct in6_addr, struct sockaddr_in6, struct ip6_hdr, struct icmp6_hdr, struct nd_neighbor_solicit, struct nd_opt_hdr], , , - [#include "src/have.h"] + [#include "$srcdir/src/have.h"] ) dnl Checks for library functions. AC_TYPE_SIGNAL AC_CHECK_FUNCS([asprintf daemon fchmod flock ftime fork get_current_dir_name gettimeofday mlockall pselect putenv random select strdup strerror strsignal strtol system unsetenv usleep vsyslog writev devname fdevname], - [], [], [#include "src/have.h"] + [], [], [#include "$srcdir/src/have.h"] ) AC_CHECK_FUNC(getopt_long, [getopt=true; AC_DEFINE(HAVE_GETOPT_LONG, 1, [getopt_long()])], [getopt=false]) @@ -227,11 +225,9 @@ AC_CHECK_FUNC(gethostbyname, [], [ ]) AC_CHECK_DECLS([freeaddrinfo, gai_strerror, getaddrinfo, getnameinfo], - [], [], [#include "src/have.h"] + [], [], [#include "$srcdir/src/have.h"] ) -CPPFLAGS="$save_CPPFLAGS" - AC_CHECK_DECLS([res_init], [AC_CHECK_LIB(resolv, res_init)], [], [ #include #include -- 2.20.1