silk/configure.ac

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# initialise autoconf and set up some basic information about the program were packaging
AC_INIT([silk], [1.0.0], [xsang.le@gmail.com])
# Were going to use automake for this project
# [subdir-objects] if needed
AM_INIT_AUTOMAKE([subdir-objects])
# dependencies
# C compiler
AC_PROG_CC
# libtool for linking
AC_PROG_LIBTOOL
# check if sqlite3 header exists
has_sqlite=no
AC_CHECK_HEADER([sqlite3.h],[
AC_DEFINE([USE_DB], [1],[Use sqlite3])
has_sqlite=yes
# check if the library exists
],[])
AC_CHECK_LIB([sqlite3],[sqlite3_open],[],[
if test "$has_sqlite" = "yes"; then
AC_MSG_ERROR([Unable to find sqlite3 shared library])
fi
])
# check for lm
AC_CHECK_LIB([m],[cos],[],[
AC_MSG_ERROR([unable to find libm])
])
# check for libreadline
#AC_CHECK_HEADER([readline/readline.h],[],[
# AC_MSG_ERROR([unable to find libreadline headers])
#])
#AC_CHECK_LIB([readline],[read_history],[],[
# AC_MSG_ERROR([unable to find libreadline])
#])
AC_DEFINE([_GNU_SOURCE], [1],[Use GNU source])
# AC_CANONICAL_HOST is needed to access the 'host_os' variable
AC_CANONICAL_HOST
build_linux=no
build_windows=no
build_mac=no
# Detect the target system
case "${host_os}" in
linux*)
AC_DEFINE([LINUX], [1],[Linux system])
build_linux=yes
;;
darwin*)
build_mac=yes
AC_DEFINE([MACOS], [1],[MacOS system])
;;
*)
AC_MSG_ERROR(["OS $host_os is not supported"])
;;
esac
if test "$build_linux" = "yes"; then
AC_CHECK_LIB([crypt],[crypt],[],[
AC_MSG_ERROR([unable to find libcrypt])
])
fi
# case for window:
# cygwin*|mingw*)
# build_windows=yes
# ;;
# Pass the conditionals to automake
AM_CONDITIONAL([HAS_DB], [test "$has_sqlite" = "yes"])
AM_CONDITIONAL([LINUX], [test "$build_linux" = "yes"])
AM_CONDITIONAL([WINDOWS], [test "$build_windows" = "yes"])
AM_CONDITIONAL([OSX], [test "$build_mac" = "yes"])
# find all config files
AC_CONFIG_FILES([
Makefile
modules/Makefile
])
# AC_SUBST([my_CPPFLAGS]) pass my_CPPFLAGS to the makefile.am
# output the script:
AC_OUTPUT