assorted build system updates

git-svn-id: file:///home/lennart/svn/public/libasyncns/trunk@28 cc0fb855-19ed-0310-866e-8c1d96e4abae

1 files changed, 38 insertions, 18 deletions

diff --git a/configure.ac b/configure.ac
index ea13552..e1c1dac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -19,16 +19,15 @@
 # along with libasyncns; if not, write to the Free Software Foundation,
 # Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 
-AC_PREREQ(2.57)
-AC_INIT([libasyncns],[0.1],[mznflapaf (at) 0pointer (dot) de])
+AC_PREREQ(2.59)
+AC_INIT([libasyncns],[0.2],[mznflapaf (at) 0pointer (dot) de])
 AC_CONFIG_SRCDIR([libasyncns/asyncns.c])
 AC_CONFIG_HEADERS([config.h])
-AM_INIT_AUTOMAKE([foreign -Wall])
+AM_INIT_AUTOMAKE([foreign 1.9 -Wall])
 
-AC_SUBST(PA_MAJORMINOR, "$PACKAGE_VERSION")
 AC_SUBST(PACKAGE_URL, [http://0pointer.de/lennart/projects/libasyncns/])
 
-AC_SUBST(PA_API_VERSION, 8)
+AC_SUBST(LIBASYNCNS_VERSION_INFO, [1:0:1])
 
 if type -p stow > /dev/null && test -d /usr/local/stow ; then
    AC_MSG_NOTICE([*** Found /usr/local/stow: default install prefix set to /usr/local/stow/${PACKAGE_NAME}-${PACKAGE_VERSION} ***])
@@ -38,29 +37,59 @@ fi
 # Checks for programs.
 AC_PROG_CC
 AC_PROG_CPP
+
+AC_GNU_SOURCE
+
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
-
-# libtool stuff
 AC_PROG_LIBTOOL
 
+test_gcc_flag() {
+    AC_LANG_CONFTEST([int main() {}])
+    $CC -c conftest.c $CFLAGS $@ > /dev/null 2> /dev/null
+    ret=$?
+    rm -f conftest.o
+    return $ret
+}
+
+# If using GCC specify some additional parameters
+if test "x$GCC" = "xyes" ; then
+
+    DESIRED_FLAGS="-std=c99 -Wall -W -Wextra -pedantic -pipe -Wformat -Wold-style-definition -Wdeclaration-after-statement -Wfloat-equal -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wredundant-decls -Wmissing-noreturn -Wshadow -Wendif-labels -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Winline -Wno-unused-parameter"
+
+    for flag in $DESIRED_FLAGS ; do
+        AC_MSG_CHECKING([whether $CC accepts $flag])
+        if test_gcc_flag $flag ; then
+           CFLAGS="$CFLAGS $flag"
+           AC_MSG_RESULT([yes])
+        else
+           AC_MSG_RESULT([no])
+        fi
+    done
+fi
+
 # Checks for header files.
 AC_HEADER_STDC
 AC_HEADER_SYS_WAIT
-AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h stdlib.h string.h sys/socket.h unistd.h sys/prctl.h])
+AC_CHECK_HEADERS([arpa/inet.h fcntl.h netdb.h stdlib.h string.h sys/socket.h unistd.h sys/prctl.h netinet/in.h])
+AC_HEADER_RESOLV
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
 AC_TYPE_PID_T
 AC_TYPE_SIZE_T
+AC_TYPE_SSIZE_T
+AC_TYPE_UINT16_T
+AC_TYPE_UINT8_T
 AC_HEADER_TIME
+
 # Checks for library functions.
 AC_FUNC_FORK
 AC_FUNC_MALLOC
 AC_FUNC_SELECT_ARGTYPES
 AC_TYPE_SIGNAL
-AC_CHECK_FUNCS([memset select strndup setresuid setreuid])
+AC_CHECK_FUNCS([memset select strndup setresuid setreuid strerror])
 
 AC_CHECK_LIB(nsl, gethostbyname)
 AC_CHECK_LIB(socket, connect)
@@ -74,15 +103,6 @@ AC_CHECK_FUNC(res_query, ,
 
 ACX_PTHREAD
 
-# If using GCC specify some additional parameters
-if test "x$GCC" = "xyes" ; then
-   CFLAGS="$CFLAGS -pipe -W -Wall -pedantic"
-
-   AC_LANG_CONFTEST([int main() {}])
-   $CC -c conftest.c -std=c99 -Wno-unused-parameter $CFLAGS > /dev/null 2> /dev/null && CFLAGS="$CFLAGS -std=c99 -Wno-unused-parameter"
-   rm -f conftest.o
-fi
-
 # LYNX documentation generation
 AC_ARG_ENABLE(lynx,
         AC_HELP_STRING(--disable-lynx,Turn off lynx usage for documentation generation),