spawn-fcgi/configure.ac

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.69])
AC_INIT([spawn-fcgi],[1.6.5])
AC_CONFIG_SRCDIR([src/spawn-fcgi.c])
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([-Wall -Werror foreign])
# Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
dnl @synopsis TRY_CFLAGS [compiler flags]
dnl @summary check whether C compiler supports given flags and adds them to CFLAGS
AC_DEFUN([TRY_CFLAGS],
[dnl
AC_MSG_CHECKING([if $CC supports $1])
AC_LANG_PUSH([C])
ac_try_cflags_saved_cflags="${CFLAGS}"
CFLAGS="${CFLAGS} $1"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
[AC_MSG_RESULT([yes])],
[
AC_MSG_ERROR([no])
# options not supported, remove them:
CFLAGS="${ac_try_cflags_saved_cflags}"
]
)
AC_LANG_POP([C])
])
# Checks for libraries.
# Checks for header files.
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS([getopt.h pwd.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_TYPE_UID_T
AC_TYPE_PID_T
AC_CHECK_TYPES(socklen_t,,,[#include <sys/types.h>
#include <sys/socket.h>])
## solaris needs -lsocket -lnsl
AC_SEARCH_LIBS([socket],[socket])
AC_SEARCH_LIBS([inet_addr],[nsl socket])
# Checks for library functions.
AC_CHECK_FUNCS([issetugid inet_pton])
# Check for IPv6 support
AC_ARG_ENABLE(ipv6,
AS_HELP_STRING([--disable-ipv6],[disable IPv6 support]),
[case "${enableval}" in
yes) ipv6=true ;;
no) ipv6=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-ipv6) ;;
esac],[ipv6=true])
if test x$ipv6 = xtrue; then
AC_CACHE_CHECK([for IPv6 support], ac_cv_ipv6_support,
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
]], [[
struct sockaddr_in6 s; struct in6_addr t=in6addr_any; int i=AF_INET6; s; t.s6_addr[0] = 0;
]])],[ac_cv_ipv6_support=yes],[ac_cv_ipv6_support=no])])
if test "$ac_cv_ipv6_support" = yes; then
AC_DEFINE(HAVE_IPV6,1,[Whether to enable IPv6 support])
fi
fi
# check for extra compiler options (warning options)
if test "${GCC}" = "yes"; then
TRY_CFLAGS([-Wall -W -Wshadow -pedantic])
TRY_CFLAGS([-std=gnu99])
fi
AC_ARG_ENABLE([extra-warnings],
[AS_HELP_STRING([--enable-extra-warnings],[enable extra warnings (gcc specific)])],
[case "${enableval}" in
yes) extrawarnings=true ;;
no) extrawarnings=false ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-extra-warnings]) ;;
esac],[extrawarnings=false])
if test x$extrawarnings = xtrue; then
TRY_CFLAGS([-g -O2 -g2 -Wall -Wmissing-declarations -Wdeclaration-after-statement -Wcast-align -Wsign-compare -Wnested-externs -Wpointer-arith -Wmissing-prototypes -Wshadow -Wno-pointer-sign -D_FORTIFY_SOURCE=2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wl,--as-needed -Wl,--no-undefined])
fi
AC_CONFIG_FILES([Makefile src/Makefile doc/Makefile])
AC_OUTPUT